diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index d7ca24ce..ab5f1bc1 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -40,7 +40,7 @@ jobs:
         with:
           go-version: ${{ matrix.golang }}
       - name: Cache Go modules
-        uses: actions/cache@v2.1.4
+        uses: actions/cache@v2.1.8
         with:
           path: ~/go/pkg/mod
           key:          ${{ runner.os }}-go-${{ matrix.golang }}-v1-${{ hashFiles('**/go.sum') }}
@@ -97,7 +97,7 @@ jobs:
         uses: actions/setup-go@v2
         with:
           go-version: ${{ matrix.golang }}
-      - uses: actions/cache@v2.1.4
+      - uses: actions/cache@v2.1.8
         with:
           path: ~/go/pkg/mod
           key:          ${{ runner.os }}-go-${{ matrix.golang }}-v1-${{ hashFiles('**/go.sum') }}
@@ -138,7 +138,7 @@ jobs:
         uses: actions/setup-go@v2
         with:
           go-version: ${{ matrix.golang }}
-      - uses: actions/cache@v2.1.4
+      - uses: actions/cache@v2.1.8
         with:
           path: ~/go/pkg/mod
           key:          ${{ runner.os }}-go-${{ matrix.golang }}-v1-${{ hashFiles('**/go.sum') }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 59f9a535..dcc1c363 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -34,7 +34,7 @@ jobs:
       -
         name: Cache Go modules
         if: steps.semantic.outputs.new-release-published == 'true'
-        uses: actions/cache@v2.1.4
+        uses: actions/cache@v2.1.8
         with:
           path: ~/go/pkg/mod
           key:          ${{ runner.os }}-go-${{ matrix.golang }}-v1-${{ hashFiles('**/go.sum') }}
diff --git a/Dockerfile b/Dockerfile
index 6aa56290..c8827462 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # builder
-FROM    golang:1.16-alpine as builder
+FROM    golang:1.23-alpine as builder
 RUN     apk --no-cache add make git go rsync libc-dev
 RUN     go get -u golang.org/x/tools/cmd/goimports
 RUN     go get -u github.com/gobuffalo/packr/v2/packr2
diff --git a/cmd/web-editor/static/index.html b/cmd/web-editor/static/index.html
index bc8af00d..83c5554f 100644
--- a/cmd/web-editor/static/index.html
+++ b/cmd/web-editor/static/index.html
@@ -8,12 +8,12 @@
     <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.js"></script>
     <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular-animate.js"></script>
     <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.13.3.js"></script>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-bootstrap/0.13.3/ui-bootstrap.min.js"></script>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.2.0/ace.min.js"></script>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.2.0/mode-protobuf.js"></script>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.2.0/mode-golang.js"></script>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.2.0/theme-cobalt.js"></script>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.2.0/worker-javascript.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-bootstrap/0.14.3/ui-bootstrap.min.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.36.5/ace.min.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.36.5/mode-protobuf.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.36.5/mode-golang.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.36.5/theme-cobalt.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.36.5/worker-javascript.js"></script>
     <script src="//angular-ui.github.io/ui-ace/dist/ui-ace.min.js"></script>
 
     <script type="text/javascript">
diff --git a/go.mod b/go.mod
index 0cb1f087..62bddcea 100644
--- a/go.mod
+++ b/go.mod
@@ -1,23 +1,422 @@
 module moul.io/protoc-gen-gotemplate
 
 require (
+	github.com/Masterminds/sprig v2.22.0+incompatible
+	github.com/gobuffalo/packr/v2 v2.8.3
+	github.com/golang/protobuf v1.5.4
+	github.com/gorilla/handlers v1.5.2
+	github.com/gorilla/mux v1.8.1
+	github.com/grpc-ecosystem/grpc-gateway v1.16.0
+	github.com/huandu/xstrings v1.5.0
+	google.golang.org/genproto v0.0.0-20241209162323-e6fa225c2576
+	google.golang.org/genproto/googleapis/api v0.0.0-20241206012308-a4fef0638583
+	google.golang.org/protobuf v1.35.2
+)
+
+require (
+	cel.dev/expr v0.16.0 // indirect
+	cloud.google.com/go v0.116.0 // indirect
+	cloud.google.com/go/accessapproval v1.8.2 // indirect
+	cloud.google.com/go/accesscontextmanager v1.9.2 // indirect
+	cloud.google.com/go/aiplatform v1.69.0 // indirect
+	cloud.google.com/go/analytics v0.25.2 // indirect
+	cloud.google.com/go/apigateway v1.7.2 // indirect
+	cloud.google.com/go/apigeeconnect v1.7.2 // indirect
+	cloud.google.com/go/apigeeregistry v0.9.2 // indirect
+	cloud.google.com/go/apikeys v0.6.0 // indirect
+	cloud.google.com/go/appengine v1.9.2 // indirect
+	cloud.google.com/go/area120 v0.9.2 // indirect
+	cloud.google.com/go/artifactregistry v1.16.0 // indirect
+	cloud.google.com/go/asset v1.20.3 // indirect
+	cloud.google.com/go/assuredworkloads v1.12.2 // indirect
+	cloud.google.com/go/auth v0.11.0 // indirect
+	cloud.google.com/go/auth/oauth2adapt v0.2.6 // indirect
+	cloud.google.com/go/automl v1.14.2 // indirect
+	cloud.google.com/go/baremetalsolution v1.3.2 // indirect
+	cloud.google.com/go/batch v1.11.3 // indirect
+	cloud.google.com/go/beyondcorp v1.1.2 // indirect
+	cloud.google.com/go/bigquery v1.65.0 // indirect
+	cloud.google.com/go/bigtable v1.33.0 // indirect
+	cloud.google.com/go/billing v1.20.0 // indirect
+	cloud.google.com/go/binaryauthorization v1.9.2 // indirect
+	cloud.google.com/go/certificatemanager v1.9.2 // indirect
+	cloud.google.com/go/channel v1.19.1 // indirect
+	cloud.google.com/go/cloudbuild v1.19.0 // indirect
+	cloud.google.com/go/clouddms v1.8.2 // indirect
+	cloud.google.com/go/cloudtasks v1.13.2 // indirect
+	cloud.google.com/go/compute v1.29.0 // indirect
+	cloud.google.com/go/compute/metadata v0.5.2 // indirect
+	cloud.google.com/go/contactcenterinsights v1.16.0 // indirect
+	cloud.google.com/go/container v1.42.0 // indirect
+	cloud.google.com/go/containeranalysis v0.13.2 // indirect
+	cloud.google.com/go/datacatalog v1.24.0 // indirect
+	cloud.google.com/go/dataflow v0.10.2 // indirect
+	cloud.google.com/go/dataform v0.10.2 // indirect
+	cloud.google.com/go/datafusion v1.8.2 // indirect
+	cloud.google.com/go/datalabeling v0.9.2 // indirect
+	cloud.google.com/go/dataplex v1.20.0 // indirect
+	cloud.google.com/go/dataproc v1.12.0 // indirect
+	cloud.google.com/go/dataproc/v2 v2.10.0 // indirect
+	cloud.google.com/go/dataqna v0.9.2 // indirect
+	cloud.google.com/go/datastore v1.20.0 // indirect
+	cloud.google.com/go/datastream v1.12.0 // indirect
+	cloud.google.com/go/deploy v1.26.0 // indirect
+	cloud.google.com/go/dialogflow v1.62.0 // indirect
+	cloud.google.com/go/dlp v1.20.0 // indirect
+	cloud.google.com/go/documentai v1.35.0 // indirect
+	cloud.google.com/go/domains v0.10.2 // indirect
+	cloud.google.com/go/edgecontainer v1.4.0 // indirect
+	cloud.google.com/go/errorreporting v0.3.1 // indirect
+	cloud.google.com/go/essentialcontacts v1.7.2 // indirect
+	cloud.google.com/go/eventarc v1.15.0 // indirect
+	cloud.google.com/go/filestore v1.9.2 // indirect
+	cloud.google.com/go/firestore v1.17.0 // indirect
+	cloud.google.com/go/functions v1.19.2 // indirect
+	cloud.google.com/go/gaming v1.10.1 // indirect
+	cloud.google.com/go/gkebackup v1.6.2 // indirect
+	cloud.google.com/go/gkeconnect v0.12.0 // indirect
+	cloud.google.com/go/gkehub v0.15.2 // indirect
+	cloud.google.com/go/gkemulticloud v1.4.1 // indirect
+	cloud.google.com/go/grafeas v0.3.11 // indirect
+	cloud.google.com/go/gsuiteaddons v1.7.2 // indirect
+	cloud.google.com/go/iam v1.3.0 // indirect
+	cloud.google.com/go/iap v1.10.2 // indirect
+	cloud.google.com/go/ids v1.5.2 // indirect
+	cloud.google.com/go/iot v1.8.2 // indirect
+	cloud.google.com/go/kms v1.20.2 // indirect
+	cloud.google.com/go/language v1.14.2 // indirect
+	cloud.google.com/go/lifesciences v0.10.2 // indirect
+	cloud.google.com/go/logging v1.12.0 // indirect
+	cloud.google.com/go/longrunning v0.6.3 // indirect
+	cloud.google.com/go/managedidentities v1.7.2 // indirect
+	cloud.google.com/go/maps v1.16.0 // indirect
+	cloud.google.com/go/mediatranslation v0.9.2 // indirect
+	cloud.google.com/go/memcache v1.11.2 // indirect
+	cloud.google.com/go/metastore v1.14.2 // indirect
+	cloud.google.com/go/monitoring v1.22.0 // indirect
+	cloud.google.com/go/networkconnectivity v1.16.0 // indirect
+	cloud.google.com/go/networkmanagement v1.17.0 // indirect
+	cloud.google.com/go/networksecurity v0.10.2 // indirect
+	cloud.google.com/go/notebooks v1.12.2 // indirect
+	cloud.google.com/go/optimization v1.7.2 // indirect
+	cloud.google.com/go/orchestration v1.11.1 // indirect
+	cloud.google.com/go/orgpolicy v1.14.1 // indirect
+	cloud.google.com/go/osconfig v1.14.2 // indirect
+	cloud.google.com/go/oslogin v1.14.2 // indirect
+	cloud.google.com/go/phishingprotection v0.9.2 // indirect
+	cloud.google.com/go/policytroubleshooter v1.11.2 // indirect
+	cloud.google.com/go/privatecatalog v0.10.2 // indirect
+	cloud.google.com/go/pubsub v1.45.3 // indirect
+	cloud.google.com/go/pubsublite v1.8.2 // indirect
+	cloud.google.com/go/recaptchaenterprise v1.3.1 // indirect
+	cloud.google.com/go/recaptchaenterprise/v2 v2.19.1 // indirect
+	cloud.google.com/go/recommendationengine v0.9.2 // indirect
+	cloud.google.com/go/recommender v1.13.2 // indirect
+	cloud.google.com/go/redis v1.17.2 // indirect
+	cloud.google.com/go/resourcemanager v1.10.2 // indirect
+	cloud.google.com/go/resourcesettings v1.8.2 // indirect
+	cloud.google.com/go/retail v1.19.1 // indirect
+	cloud.google.com/go/run v1.8.0 // indirect
+	cloud.google.com/go/scheduler v1.11.2 // indirect
+	cloud.google.com/go/secretmanager v1.14.2 // indirect
+	cloud.google.com/go/security v1.18.2 // indirect
+	cloud.google.com/go/securitycenter v1.35.2 // indirect
+	cloud.google.com/go/servicecontrol v1.11.1 // indirect
+	cloud.google.com/go/servicedirectory v1.12.2 // indirect
+	cloud.google.com/go/servicemanagement v1.8.0 // indirect
+	cloud.google.com/go/serviceusage v1.6.0 // indirect
+	cloud.google.com/go/shell v1.8.2 // indirect
+	cloud.google.com/go/spanner v1.73.0 // indirect
+	cloud.google.com/go/speech v1.25.2 // indirect
+	cloud.google.com/go/storage v1.43.0 // indirect
+	cloud.google.com/go/storagetransfer v1.11.2 // indirect
+	cloud.google.com/go/talent v1.7.2 // indirect
+	cloud.google.com/go/texttospeech v1.10.0 // indirect
+	cloud.google.com/go/tpu v1.7.2 // indirect
+	cloud.google.com/go/trace v1.11.2 // indirect
+	cloud.google.com/go/translate v1.12.2 // indirect
+	cloud.google.com/go/video v1.23.2 // indirect
+	cloud.google.com/go/videointelligence v1.12.2 // indirect
+	cloud.google.com/go/vision v1.2.0 // indirect
+	cloud.google.com/go/vision/v2 v2.9.2 // indirect
+	cloud.google.com/go/vmmigration v1.8.2 // indirect
+	cloud.google.com/go/vmwareengine v1.3.2 // indirect
+	cloud.google.com/go/vpcaccess v1.8.2 // indirect
+	cloud.google.com/go/webrisk v1.10.2 // indirect
+	cloud.google.com/go/websecurityscanner v1.7.2 // indirect
+	cloud.google.com/go/workflows v1.13.2 // indirect
+	dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9 // indirect
+	gioui.org v0.0.0-20210308172011-57750fc8a0a6 // indirect
+	git.sr.ht/~sbinet/gg v0.3.1 // indirect
+	github.com/BurntSushi/toml v0.3.1 // indirect
+	github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802 // indirect
+	github.com/GoogleCloudPlatform/grpc-gcp-go/grpcgcp v1.5.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.24.1 // indirect
+	github.com/JohnCGriffin/overflow v0.0.0-20211019200055-46fa312c352c // indirect
 	github.com/Masterminds/goutils v1.1.0 // indirect
 	github.com/Masterminds/semver v1.5.0 // indirect
-	github.com/Masterminds/sprig v2.22.0+incompatible
-	github.com/gobuffalo/packr/v2 v2.8.0
-	github.com/golang/protobuf v1.5.2
-	github.com/google/uuid v1.1.1 // indirect
-	github.com/gorilla/handlers v1.4.2
-	github.com/gorilla/mux v1.7.3
-	github.com/grpc-ecosystem/grpc-gateway v1.12.1
-	github.com/huandu/xstrings v1.3.0
+	github.com/OneOfOne/xxhash v1.2.2 // indirect
+	github.com/ajstarks/deck v0.0.0-20200831202436-30c9fc6549a9 // indirect
+	github.com/ajstarks/deck/generate v0.0.0-20210309230005-c3f852c02e19 // indirect
+	github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b // indirect
+	github.com/alecthomas/assert/v2 v2.3.0 // indirect
+	github.com/alecthomas/participle/v2 v2.1.0 // indirect
+	github.com/alecthomas/repr v0.2.0 // indirect
+	github.com/andybalholm/brotli v1.0.5 // indirect
+	github.com/antihax/optional v1.0.0 // indirect
+	github.com/apache/arrow/go/v10 v10.0.1 // indirect
+	github.com/apache/arrow/go/v11 v11.0.0 // indirect
+	github.com/apache/arrow/go/v12 v12.0.1 // indirect
+	github.com/apache/arrow/go/v14 v14.0.2 // indirect
+	github.com/apache/arrow/go/v15 v15.0.2 // indirect
+	github.com/apache/thrift v0.17.0 // indirect
+	github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e // indirect
+	github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da // indirect
+	github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310 // indirect
+	github.com/bgentry/speakeasy v0.1.0 // indirect
+	github.com/bketelsen/crypt v0.0.4 // indirect
+	github.com/boombuler/barcode v1.0.1 // indirect
+	github.com/census-instrumentation/opencensus-proto v0.4.1 // indirect
+	github.com/cespare/xxhash v1.1.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/chzyer/logex v1.2.0 // indirect
+	github.com/chzyer/readline v1.5.0 // indirect
+	github.com/chzyer/test v0.0.0-20210722231415-061457976a23 // indirect
+	github.com/client9/misspell v0.3.4 // indirect
+	github.com/cncf/udpa/go v0.0.0-20220112060539-c52dc94e7fbe // indirect
+	github.com/cncf/xds/go v0.0.0-20240822171458-6449f94b4d59 // indirect
+	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
+	github.com/creack/pty v1.1.9 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/envoyproxy/go-control-plane v0.13.0 // indirect
+	github.com/envoyproxy/protoc-gen-validate v1.1.0 // indirect
+	github.com/ettle/strcase v0.1.1 // indirect
+	github.com/fatih/color v1.15.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/fogleman/gg v1.3.0 // indirect
+	github.com/fsnotify/fsnotify v1.4.9 // indirect
+	github.com/ghodss/yaml v1.0.0 // indirect
+	github.com/go-fonts/dejavu v0.1.0 // indirect
+	github.com/go-fonts/latin-modern v0.2.0 // indirect
+	github.com/go-fonts/liberation v0.2.0 // indirect
+	github.com/go-fonts/stix v0.1.0 // indirect
+	github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1 // indirect
+	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4 // indirect
+	github.com/go-latex/latex v0.0.0-20210823091927-c0d11ff05a81 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-pdf/fpdf v0.6.0 // indirect
+	github.com/go-playground/assert/v2 v2.0.1 // indirect
+	github.com/go-playground/locales v0.13.0 // indirect
+	github.com/go-playground/universal-translator v0.17.0 // indirect
+	github.com/go-playground/validator/v10 v10.4.1 // indirect
+	github.com/gobuffalo/logger v1.0.6 // indirect
+	github.com/gobuffalo/packd v1.0.1 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/goccy/go-yaml v1.11.0 // indirect
+	github.com/godbus/dbus/v5 v5.0.4 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
+	github.com/golang/glog v1.2.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/mock v1.6.0 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/btree v1.1.3 // indirect
+	github.com/google/flatbuffers v23.5.26+incompatible // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/google/go-pkcs11 v0.3.0 // indirect
+	github.com/google/gofuzz v1.0.0 // indirect
+	github.com/google/martian v2.1.0+incompatible // indirect
+	github.com/google/martian/v3 v3.3.3 // indirect
+	github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26 // indirect
+	github.com/google/renameio v0.1.0 // indirect
+	github.com/google/s2a-go v0.1.8 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/googleapis/cloud-bigtable-clients-test v0.0.2 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.4 // indirect
+	github.com/googleapis/gax-go/v2 v2.14.0 // indirect
+	github.com/googleapis/go-type-adapters v1.0.0 // indirect
+	github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8 // indirect
+	github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 // indirect
+	github.com/hamba/avro/v2 v2.17.2 // indirect
+	github.com/hashicorp/consul/api v1.1.0 // indirect
+	github.com/hashicorp/consul/sdk v0.1.1 // indirect
+	github.com/hashicorp/errwrap v1.0.0 // indirect
+	github.com/hashicorp/go-cleanhttp v0.5.1 // indirect
+	github.com/hashicorp/go-immutable-radix v1.0.0 // indirect
+	github.com/hashicorp/go-msgpack v0.5.3 // indirect
+	github.com/hashicorp/go-multierror v1.0.0 // indirect
+	github.com/hashicorp/go-rootcerts v1.0.0 // indirect
+	github.com/hashicorp/go-sockaddr v1.0.0 // indirect
+	github.com/hashicorp/go-syslog v1.0.0 // indirect
+	github.com/hashicorp/go-uuid v1.0.1 // indirect
+	github.com/hashicorp/go.net v0.0.1 // indirect
+	github.com/hashicorp/golang-lru v0.5.1 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/hashicorp/logutils v1.0.0 // indirect
+	github.com/hashicorp/mdns v1.0.0 // indirect
+	github.com/hashicorp/memberlist v0.1.3 // indirect
+	github.com/hashicorp/serf v0.8.2 // indirect
+	github.com/hexops/gotextdiff v1.0.3 // indirect
+	github.com/iancoleman/strcase v0.3.0 // indirect
+	github.com/ianlancetaylor/demangle v0.0.0-20220319035150-800ac71e25c2 // indirect
 	github.com/imdario/mergo v0.3.8 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/jstemmer/go-junit-report v0.9.1 // indirect
+	github.com/jtolds/gls v4.20.0+incompatible // indirect
+	github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5 // indirect
+	github.com/karrick/godirwalk v1.16.1 // indirect
+	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
+	github.com/kisielk/errcheck v1.5.0 // indirect
+	github.com/kisielk/gotool v1.0.0 // indirect
+	github.com/klauspost/asmfmt v1.3.2 // indirect
+	github.com/klauspost/compress v1.16.7 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/kr/fs v0.1.0 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/kr/pty v1.1.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/leodido/go-urn v1.2.0 // indirect
+	github.com/lyft/protoc-gen-star v0.6.1 // indirect
+	github.com/lyft/protoc-gen-star/v2 v2.0.4-0.20230330145011-496ad1ac90a4 // indirect
+	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/markbates/errx v1.1.0 // indirect
+	github.com/markbates/oncer v1.0.0 // indirect
+	github.com/markbates/safe v1.0.1 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/mattn/go-sqlite3 v1.14.16 // indirect
+	github.com/miekg/dns v1.0.14 // indirect
+	github.com/minio/asm2plan9s v0.0.0-20200509001527-cdd76441f9d8 // indirect
+	github.com/minio/c2goasm v0.0.0-20190812172519-36a3d3bbc4f3 // indirect
+	github.com/mitchellh/cli v1.0.0 // indirect
 	github.com/mitchellh/copystructure v1.0.0 // indirect
+	github.com/mitchellh/go-homedir v1.0.0 // indirect
+	github.com/mitchellh/go-testing-interface v1.0.0 // indirect
+	github.com/mitchellh/gox v0.4.0 // indirect
+	github.com/mitchellh/iochan v1.0.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.1 // indirect
-	golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d // indirect
-	google.golang.org/genproto v0.0.0-20200113173426-e1de0a7b01eb
-	google.golang.org/protobuf v1.27.1
-	gopkg.in/yaml.v2 v2.2.7 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c // indirect
+	github.com/pelletier/go-toml v1.9.3 // indirect
+	github.com/phpdave11/gofpdf v1.4.2 // indirect
+	github.com/phpdave11/gofpdi v1.0.13 // indirect
+	github.com/pierrec/lz4/v4 v4.1.18 // indirect
+	github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pkg/sftp v1.13.1 // indirect
+	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/posener/complete v1.1.1 // indirect
+	github.com/prometheus/client_model v0.6.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/rogpeppe/fastuuid v1.2.0 // indirect
+	github.com/rogpeppe/go-internal v1.12.0 // indirect
+	github.com/russross/blackfriday/v2 v2.0.1 // indirect
+	github.com/ruudk/golang-pdf417 v0.0.0-20201230142125-a7e3863a1245 // indirect
+	github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f // indirect
+	github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 // indirect
+	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
+	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d // indirect
+	github.com/smartystreets/goconvey v1.6.4 // indirect
+	github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72 // indirect
+	github.com/spf13/afero v1.10.0 // indirect
+	github.com/spf13/cast v1.3.1 // indirect
+	github.com/spf13/cobra v1.2.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/spf13/viper v1.8.1 // indirect
+	github.com/stoewer/go-strcase v1.3.0 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	github.com/substrait-io/substrait-go v0.4.2 // indirect
+	github.com/tidwall/gjson v1.14.2 // indirect
+	github.com/tidwall/match v1.1.1 // indirect
+	github.com/tidwall/pretty v1.2.0 // indirect
+	github.com/tidwall/sjson v1.2.5 // indirect
+	github.com/yuin/goldmark v1.4.13 // indirect
+	github.com/zeebo/assert v1.3.0 // indirect
+	github.com/zeebo/xxh3 v1.0.2 // indirect
+	go.einride.tech/aip v0.68.0 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.0 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.0 // indirect
+	go.etcd.io/etcd/client/v2 v2.305.0 // indirect
+	go.opencensus.io v0.24.0 // indirect
+	go.opentelemetry.io/contrib/detectors/gcp v1.29.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.54.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.54.0 // indirect
+	go.opentelemetry.io/otel v1.29.0 // indirect
+	go.opentelemetry.io/otel/metric v1.29.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.29.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.29.0 // indirect
+	go.opentelemetry.io/otel/trace v1.29.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/goleak v1.3.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.17.0 // indirect
+	golang.org/x/crypto v0.29.0 // indirect
+	golang.org/x/exp v0.0.0-20231006140011-7918f672742d // indirect
+	golang.org/x/image v0.0.0-20220302094943-723b81ca9867 // indirect
+	golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 // indirect
+	golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028 // indirect
+	golang.org/x/mod v0.20.0 // indirect
+	golang.org/x/net v0.31.0 // indirect
+	golang.org/x/oauth2 v0.24.0 // indirect
+	golang.org/x/sync v0.9.0 // indirect
+	golang.org/x/sys v0.27.0 // indirect
+	golang.org/x/telemetry v0.0.0-20240521205824-bda55230c457 // indirect
+	golang.org/x/term v0.26.0 // indirect
+	golang.org/x/text v0.20.0 // indirect
+	golang.org/x/time v0.8.0 // indirect
+	golang.org/x/tools v0.24.0 // indirect
+	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
+	gonum.org/v1/gonum v0.12.0 // indirect
+	gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0 // indirect
+	gonum.org/v1/plot v0.10.1 // indirect
+	google.golang.org/api v0.210.0 // indirect
+	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/genproto/googleapis/bytestream v0.0.0-20241118233622-e639e219e697 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241206012308-a4fef0638583 // indirect
+	google.golang.org/grpc v1.67.1 // indirect
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	gopkg.in/errgo.v2 v2.1.0 // indirect
+	gopkg.in/ini.v1 v1.62.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	gotest.tools/v3 v3.5.1 // indirect
+	honnef.co/go/tools v0.1.3 // indirect
+	lukechampine.com/uint128 v1.3.0 // indirect
+	modernc.org/cc/v3 v3.40.0 // indirect
+	modernc.org/ccgo/v3 v3.16.13 // indirect
+	modernc.org/ccorpus v1.11.6 // indirect
+	modernc.org/httpfs v1.0.6 // indirect
+	modernc.org/libc v1.22.4 // indirect
+	modernc.org/mathutil v1.5.0 // indirect
+	modernc.org/memory v1.5.0 // indirect
+	modernc.org/opt v0.1.3 // indirect
+	modernc.org/sqlite v1.21.2 // indirect
+	modernc.org/strutil v1.1.3 // indirect
+	modernc.org/tcl v1.15.1 // indirect
+	modernc.org/token v1.1.0 // indirect
+	modernc.org/z v1.7.0 // indirect
+	rsc.io/binaryregexp v0.2.0 // indirect
+	rsc.io/pdf v0.1.1 // indirect
+	rsc.io/quote/v3 v3.1.0 // indirect
+	rsc.io/sampler v1.3.0 // indirect
 )
 
-go 1.13
+go 1.21
+
+toolchain go1.23.4
diff --git a/go.sum b/go.sum
index 78628f63..bcddefa8 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,143 @@
+cel.dev/expr v0.16.0/go.mod h1:TRSuuV7DlVCE/uwv5QbAiW/v8l5O8C4eEPHeu7gf7Sg=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.116.0/go.mod h1:cEPSRWPzZEswwdr9BxE6ChEn01dWlTaF05LiC2Xs70U=
+cloud.google.com/go/accessapproval v1.8.2/go.mod h1:aEJvHZtpjqstffVwF/2mCXXSQmpskyzvw6zKLvLutZM=
+cloud.google.com/go/accesscontextmanager v1.9.2/go.mod h1:T0Sw/PQPyzctnkw1pdmGAKb7XBA84BqQzH0fSU7wzJU=
+cloud.google.com/go/aiplatform v1.69.0/go.mod h1:nUsIqzS3khlnWvpjfJbP+2+h+VrFyYsTm7RNCAViiY8=
+cloud.google.com/go/analytics v0.25.2/go.mod h1:th0DIunqrhI1ZWVlT3PH2Uw/9ANX8YHfFDEPqf/+7xM=
+cloud.google.com/go/apigateway v1.7.2/go.mod h1:+weId+9aR9J6GRwDka7jIUSrKEX60XGcikX7dGU8O7M=
+cloud.google.com/go/apigeeconnect v1.7.2/go.mod h1:he/SWi3A63fbyxrxD6jb67ak17QTbWjva1TFbT5w8Kw=
+cloud.google.com/go/apigeeregistry v0.9.2/go.mod h1:A5n/DwpG5NaP2fcLYGiFA9QfzpQhPRFNATO1gie8KM8=
+cloud.google.com/go/apikeys v0.6.0/go.mod h1:kbpXu5upyiAlGkKrJgQl8A0rKNNJ7dQ377pdroRSSi8=
+cloud.google.com/go/appengine v1.9.2/go.mod h1:bK4dvmMG6b5Tem2JFZcjvHdxco9g6t1pwd3y/1qr+3s=
+cloud.google.com/go/area120 v0.9.2/go.mod h1:Ar/KPx51UbrTWGVGgGzFnT7hFYQuk/0VOXkvHdTbQMI=
+cloud.google.com/go/artifactregistry v1.16.0/go.mod h1:LunXo4u2rFtvJjrGjO0JS+Gs9Eco2xbZU6JVJ4+T8Sk=
+cloud.google.com/go/asset v1.20.3/go.mod h1:797WxTDwdnFAJzbjZ5zc+P5iwqXc13yO9DHhmS6wl+o=
+cloud.google.com/go/assuredworkloads v1.12.2/go.mod h1:/WeRr/q+6EQYgnoYrqCVgw7boMoDfjXZZev3iJxs2Iw=
+cloud.google.com/go/auth v0.11.0/go.mod h1:xxA5AqpDrvS+Gkmo9RqrGGRh6WSNKKOXhY3zNOr38tI=
+cloud.google.com/go/auth/oauth2adapt v0.2.6/go.mod h1:AlmsELtlEBnaNTL7jCj8VQFLy6mbZv0s4Q7NGBeQ5E8=
+cloud.google.com/go/automl v1.14.2/go.mod h1:mIat+Mf77W30eWQ/vrhjXsXaRh8Qfu4WiymR0hR6Uxk=
+cloud.google.com/go/baremetalsolution v1.3.2/go.mod h1:3+wqVRstRREJV/puwaKAH3Pnn7ByreZG2aFRsavnoBQ=
+cloud.google.com/go/batch v1.11.3/go.mod h1:ehsVs8Y86Q4K+qhEStxICqQnNqH8cqgpCxx89cmU5h4=
+cloud.google.com/go/beyondcorp v1.1.2/go.mod h1:q6YWSkEsSZTU2WDt1qtz6P5yfv79wgktGtNbd0FJTLI=
+cloud.google.com/go/bigquery v1.65.0/go.mod h1:9WXejQ9s5YkTW4ryDYzKXBooL78u5+akWGXgJqQkY6A=
+cloud.google.com/go/bigtable v1.33.0/go.mod h1:HtpnH4g25VT1pejHRtInlFPnN5sjTxbQlsYBjh9t5l0=
+cloud.google.com/go/billing v1.20.0/go.mod h1:AAtih/X2nka5mug6jTAq8jfh1nPye0OjkHbZEZgU59c=
+cloud.google.com/go/binaryauthorization v1.9.2/go.mod h1:T4nOcRWi2WX4bjfSRXJkUnpliVIqjP38V88Z10OvEv4=
+cloud.google.com/go/certificatemanager v1.9.2/go.mod h1:PqW+fNSav5Xz8bvUnJpATIRo1aaABP4mUg/7XIeAn6c=
+cloud.google.com/go/channel v1.19.1/go.mod h1:ungpP46l6XUeuefbA/XWpWWnAY3897CSRPXUbDstwUo=
+cloud.google.com/go/cloudbuild v1.19.0/go.mod h1:ZGRqbNMrVGhknIIjwASa6MqoRTOpXIVMSI+Ew5DMPuY=
+cloud.google.com/go/clouddms v1.8.2/go.mod h1:pe+JSp12u4mYOkwXpSMouyCCuQHL3a6xvWH2FgOcAt4=
+cloud.google.com/go/cloudtasks v1.13.2/go.mod h1:2pyE4Lhm7xY8GqbZKLnYk7eeuh8L0JwAvXx1ecKxYu8=
+cloud.google.com/go/compute v1.29.0/go.mod h1:HFlsDurE5DpQZClAGf/cYh+gxssMhBxBovZDYkEn/Og=
+cloud.google.com/go/compute/metadata v0.5.2/go.mod h1:C66sj2AluDcIqakBq/M8lw8/ybHgOZqin2obFxa/E5k=
+cloud.google.com/go/contactcenterinsights v1.16.0/go.mod h1:cFGxDVm/OwEVAHbU9UO4xQCtQFn0RZSrSUcF/oJ0Bbs=
+cloud.google.com/go/container v1.42.0/go.mod h1:YL6lDgCUi3frIWNIFU9qrmF7/6K1EYrtspmFTyyqJ+k=
+cloud.google.com/go/containeranalysis v0.13.2/go.mod h1:AiKvXJkc3HiqkHzVIt6s5M81wk+q7SNffc6ZlkTDgiE=
+cloud.google.com/go/datacatalog v1.24.0/go.mod h1:9Wamq8TDfL2680Sav7q3zEhBJSPBrDxJU8WtPJ25dBM=
+cloud.google.com/go/dataflow v0.10.2/go.mod h1:+HIb4HJxDCZYuCqDGnBHZEglh5I0edi/mLgVbxDf0Ag=
+cloud.google.com/go/dataform v0.10.2/go.mod h1:oZHwMBxG6jGZCVZqqMx+XWXK+dA/ooyYiyeRbUxI15M=
+cloud.google.com/go/datafusion v1.8.2/go.mod h1:XernijudKtVG/VEvxtLv08COyVuiYPraSxm+8hd4zXA=
+cloud.google.com/go/datalabeling v0.9.2/go.mod h1:8me7cCxwV/mZgYWtRAd3oRVGFD6UyT7hjMi+4GRyPpg=
+cloud.google.com/go/dataplex v1.20.0/go.mod h1:vsxxdF5dgk3hX8Ens9m2/pMNhQZklUhSgqTghZtF1v4=
+cloud.google.com/go/dataproc v1.12.0/go.mod h1:zrF3aX0uV3ikkMz6z4uBbIKyhRITnxvr4i3IjKsKrw4=
+cloud.google.com/go/dataproc/v2 v2.10.0/go.mod h1:HD16lk4rv2zHFhbm8gGOtrRaFohMDr9f0lAUMLmg1PM=
+cloud.google.com/go/dataqna v0.9.2/go.mod h1:WCJ7pwD0Mi+4pIzFQ+b2Zqy5DcExycNKHuB+VURPPgs=
+cloud.google.com/go/datastore v1.20.0/go.mod h1:uFo3e+aEpRfHgtp5pp0+6M0o147KoPaYNaPAKpfh8Ew=
+cloud.google.com/go/datastream v1.12.0/go.mod h1:RnFWa5zwR5SzHxeZGJOlQ4HKBQPcjGfD219Qy0qfh2k=
+cloud.google.com/go/deploy v1.26.0/go.mod h1:h9uVCWxSDanXUereI5WR+vlZdbPJ6XGy+gcfC25v5rM=
+cloud.google.com/go/dialogflow v1.62.0/go.mod h1:PjsrI+d2FI4BlGThxL0+Rua/g9vLI+2A1KL7s/Vo3pY=
+cloud.google.com/go/dlp v1.20.0/go.mod h1:nrGsA3r8s7wh2Ct9FWu69UjBObiLldNyQda2RCHgdaY=
+cloud.google.com/go/documentai v1.35.0/go.mod h1:ZotiWUlDE8qXSUqkJsGMQqVmfTMYATwJEYqbPXTR9kk=
+cloud.google.com/go/domains v0.10.2/go.mod h1:oL0Wsda9KdJvvGNsykdalHxQv4Ri0yfdDkIi3bzTUwk=
+cloud.google.com/go/edgecontainer v1.4.0/go.mod h1:Hxj5saJT8LMREmAI9tbNTaBpW5loYiWFyisCjDhzu88=
+cloud.google.com/go/errorreporting v0.3.1/go.mod h1:6xVQXU1UuntfAf+bVkFk6nld41+CPyF2NSPCyXE3Ztk=
+cloud.google.com/go/essentialcontacts v1.7.2/go.mod h1:NoCBlOIVteJFJU+HG9dIG/Cc9kt1K9ys9mbOaGPUmPc=
+cloud.google.com/go/eventarc v1.15.0/go.mod h1:PAd/pPIZdJtJQFJI1yDEUms1mqohdNuM1BFEVHHlVFg=
+cloud.google.com/go/filestore v1.9.2/go.mod h1:I9pM7Hoetq9a7djC1xtmtOeHSUYocna09ZP6x+PG1Xw=
+cloud.google.com/go/firestore v1.17.0/go.mod h1:69uPx1papBsY8ZETooc71fOhoKkD70Q1DwMrtKuOT/Y=
+cloud.google.com/go/functions v1.19.2/go.mod h1:SBzWwWuaFDLnUyStDAMEysVN1oA5ECLbP3/PfJ9Uk7Y=
+cloud.google.com/go/gaming v1.10.1/go.mod h1:XQQvtfP8Rb9Rxnxm5wFVpAp9zCQkJi2bLIb7iHGwB3s=
+cloud.google.com/go/gkebackup v1.6.2/go.mod h1:WsTSWqKJkGan1pkp5dS30oxb+Eaa6cLvxEUxKTUALwk=
+cloud.google.com/go/gkeconnect v0.12.0/go.mod h1:zn37LsFiNZxPN4iO7YbUk8l/E14pAJ7KxpoXoxt7Ly0=
+cloud.google.com/go/gkehub v0.15.2/go.mod h1:8YziTOpwbM8LM3r9cHaOMy2rNgJHXZCrrmGgcau9zbQ=
+cloud.google.com/go/gkemulticloud v1.4.1/go.mod h1:KRvPYcx53bztNwNInrezdfNF+wwUom8Y3FuJBwhvFpQ=
+cloud.google.com/go/grafeas v0.3.11/go.mod h1:dcQyG2+T4tBgG0MvJAh7g2wl/xHV2w+RZIqivwuLjNg=
+cloud.google.com/go/gsuiteaddons v1.7.2/go.mod h1:GD32J2rN/4APilqZw4JKmwV84+jowYYMkEVwQEYuAWc=
+cloud.google.com/go/iam v1.3.0/go.mod h1:0Ys8ccaZHdI1dEUilwzqng/6ps2YB6vRsjIe00/+6JY=
+cloud.google.com/go/iap v1.10.2/go.mod h1:cClgtI09VIfazEK6VMJr6bX8KQfuQ/D3xqX+d0wrUlI=
+cloud.google.com/go/ids v1.5.2/go.mod h1:P+ccDD96joXlomfonEdCnyrHvE68uLonc7sJBPVM5T0=
+cloud.google.com/go/iot v1.8.2/go.mod h1:UDwVXvRD44JIcMZr8pzpF3o4iPsmOO6fmbaIYCAg1ww=
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@@ -172,13 +525,16 @@ golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR
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@@ -187,8 +543,15 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
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 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
+google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/ini.v1 v1.62.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -225,5 +607,28 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools/v3 v3.5.1/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
+lukechampine.com/uint128 v1.3.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
+modernc.org/cc/v3 v3.40.0/go.mod h1:/bTg4dnWkSXowUO6ssQKnOV0yMVxDYNIsIrzqTFDGH0=
+modernc.org/ccgo/v3 v3.16.13/go.mod h1:2Quk+5YgpImhPjv2Qsob1DnZ/4som1lJTodubIcoUkY=
+modernc.org/ccorpus v1.11.6/go.mod h1:2gEUTrWqdpH2pXsmTM1ZkjeSrUWDpjMu2T6m29L/ErQ=
+modernc.org/httpfs v1.0.6/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
+modernc.org/libc v1.22.4/go.mod h1:jj+Z7dTNX8fBScMVNRAYZ/jF91K8fdT2hYMThc3YjBY=
+modernc.org/mathutil v1.5.0/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/memory v1.5.0/go.mod h1:PkUhL0Mugw21sHPeskwZW4D6VscE/GQJOnIpCnW6pSU=
+modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
+modernc.org/sqlite v1.21.2/go.mod h1:cxbLkB5WS32DnQqeH4h4o1B0eMr8W/y8/RGuxQ3JsC0=
+modernc.org/strutil v1.1.3/go.mod h1:MEHNA7PdEnEwLvspRMtWTNnp2nnyvMfkimT1NKNAGbw=
+modernc.org/tcl v1.15.1/go.mod h1:aEjeGJX2gz1oWKOLDVZ2tnEWLUrIn8H+GFu+akoDhqs=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
+modernc.org/z v1.7.0/go.mod h1:hVdgNMh8ggTuRG1rGU8x+xGRFfiQUIAw0ZqlPy8+HyQ=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
diff --git a/vendor/github.com/Masterminds/semver/CHANGELOG.md b/vendor/github.com/Masterminds/semver/CHANGELOG.md
index 237d53a4..e405c9a8 100644
--- a/vendor/github.com/Masterminds/semver/CHANGELOG.md
+++ b/vendor/github.com/Masterminds/semver/CHANGELOG.md
@@ -1,3 +1,67 @@
+# 1.5.0 (2019-09-11)
+
+## Added
+
+- #103: Add basic fuzzing for `NewVersion()` (thanks @jesse-c)
+
+## Changed
+
+- #82: Clarify wildcard meaning in range constraints and update tests for it (thanks @greysteil)
+- #83: Clarify caret operator range for pre-1.0.0 dependencies (thanks @greysteil)
+- #72: Adding docs comment pointing to vert for a cli
+- #71: Update the docs on pre-release comparator handling
+- #89: Test with new go versions (thanks @thedevsaddam)
+- #87: Added $ to ValidPrerelease for better validation (thanks @jeremycarroll)
+
+## Fixed
+
+- #78: Fix unchecked error in example code (thanks @ravron)
+- #70: Fix the handling of pre-releases and the 0.0.0 release edge case
+- #97: Fixed copyright file for proper display on GitHub
+- #107: Fix handling prerelease when sorting alphanum and num 
+- #109: Fixed where Validate sometimes returns wrong message on error
+
+# 1.4.2 (2018-04-10)
+
+## Changed
+- #72: Updated the docs to point to vert for a console appliaction
+- #71: Update the docs on pre-release comparator handling
+
+## Fixed
+- #70: Fix the handling of pre-releases and the 0.0.0 release edge case
+
+# 1.4.1 (2018-04-02)
+
+## Fixed
+- Fixed #64: Fix pre-release precedence issue (thanks @uudashr)
+
+# 1.4.0 (2017-10-04)
+
+## Changed
+- #61: Update NewVersion to parse ints with a 64bit int size (thanks @zknill)
+
+# 1.3.1 (2017-07-10)
+
+## Fixed
+- Fixed #57: number comparisons in prerelease sometimes inaccurate
+
+# 1.3.0 (2017-05-02)
+
+## Added
+- #45: Added json (un)marshaling support (thanks @mh-cbon)
+- Stability marker. See https://masterminds.github.io/stability/
+
+## Fixed
+- #51: Fix handling of single digit tilde constraint (thanks @dgodd)
+
+## Changed
+- #55: The godoc icon moved from png to svg
+
+# 1.2.3 (2017-04-03)
+
+## Fixed
+- #46: Fixed 0.x.x and 0.0.x in constraints being treated as *
+
 # Release 1.2.2 (2016-12-13)
 
 ## Fixed
diff --git a/vendor/github.com/Masterminds/semver/LICENSE.txt b/vendor/github.com/Masterminds/semver/LICENSE.txt
index 0da4aead..9ff7da9c 100644
--- a/vendor/github.com/Masterminds/semver/LICENSE.txt
+++ b/vendor/github.com/Masterminds/semver/LICENSE.txt
@@ -1,5 +1,4 @@
-The Masterminds
-Copyright (C) 2014-2015, Matt Butcher and Matt Farina
+Copyright (C) 2014-2019, Matt Butcher and Matt Farina
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/vendor/github.com/Masterminds/semver/README.md b/vendor/github.com/Masterminds/semver/README.md
index 9a9ed453..1b52d2f4 100644
--- a/vendor/github.com/Masterminds/semver/README.md
+++ b/vendor/github.com/Masterminds/semver/README.md
@@ -7,7 +7,12 @@ The `semver` package provides the ability to work with [Semantic Versions](http:
 * Check if a semantic version fits within a set of constraints
 * Optionally work with a `v` prefix
 
-[![Build Status](https://travis-ci.org/Masterminds/semver.svg)](https://travis-ci.org/Masterminds/semver) [![Build status](https://ci.appveyor.com/api/projects/status/jfk66lib7hb985k8/branch/master?svg=true&passingText=windows%20build%20passing&failingText=windows%20build%20failing)](https://ci.appveyor.com/project/mattfarina/semver/branch/master) [![GoDoc](https://godoc.org/github.com/Masterminds/semver?status.png)](https://godoc.org/github.com/Masterminds/semver) [![Go Report Card](https://goreportcard.com/badge/github.com/Masterminds/semver)](https://goreportcard.com/report/github.com/Masterminds/semver)
+[![Stability:
+Active](https://masterminds.github.io/stability/active.svg)](https://masterminds.github.io/stability/active.html)
+[![Build Status](https://travis-ci.org/Masterminds/semver.svg)](https://travis-ci.org/Masterminds/semver) [![Build status](https://ci.appveyor.com/api/projects/status/jfk66lib7hb985k8/branch/master?svg=true&passingText=windows%20build%20passing&failingText=windows%20build%20failing)](https://ci.appveyor.com/project/mattfarina/semver/branch/master) [![GoDoc](https://godoc.org/github.com/Masterminds/semver?status.svg)](https://godoc.org/github.com/Masterminds/semver) [![Go Report Card](https://goreportcard.com/badge/github.com/Masterminds/semver)](https://goreportcard.com/report/github.com/Masterminds/semver)
+
+If you are looking for a command line tool for version comparisons please see
+[vert](https://github.com/Masterminds/vert) which uses this library.
 
 ## Parsing Semantic Versions
 
@@ -78,14 +83,32 @@ The basic comparisons are:
 * `>=`: greater than or equal to
 * `<=`: less than or equal to
 
-_Note, according to the Semantic Version specification pre-releases may not be
-API compliant with their release counterpart. It says,_
+## Working With Pre-release Versions
+
+Pre-releases, for those not familiar with them, are used for software releases
+prior to stable or generally available releases. Examples of pre-releases include
+development, alpha, beta, and release candidate releases. A pre-release may be
+a version such as `1.2.3-beta.1` while the stable release would be `1.2.3`. In the
+order of precidence, pre-releases come before their associated releases. In this
+example `1.2.3-beta.1 < 1.2.3`.
+
+According to the Semantic Version specification pre-releases may not be
+API compliant with their release counterpart. It says,
+
+> A pre-release version indicates that the version is unstable and might not satisfy the intended compatibility requirements as denoted by its associated normal version.
 
-> _A pre-release version indicates that the version is unstable and might not satisfy the intended compatibility requirements as denoted by its associated normal version._
+SemVer comparisons without a pre-release comparator will skip pre-release versions.
+For example, `>=1.2.3` will skip pre-releases when looking at a list of releases
+while `>=1.2.3-0` will evaluate and find pre-releases.
 
-_SemVer comparisons without a pre-release value will skip pre-release versions.
-For example, `>1.2.3` will skip pre-releases when looking at a list of values
-while `>1.2.3-alpha.1` will evaluate pre-releases._
+The reason for the `0` as a pre-release version in the example comparison is
+because pre-releases can only contain ASCII alphanumerics and hyphens (along with
+`.` separators), per the spec. Sorting happens in ASCII sort order, again per the spec. The lowest character is a `0` in ASCII sort order (see an [ASCII Table](http://www.asciitable.com/))
+
+Understanding ASCII sort ordering is important because A-Z comes before a-z. That
+means `>=1.2.3-BETA` will return `1.2.3-alpha`. What you might expect from case
+sensitivity doesn't apply here. This is due to ASCII sort ordering which is what
+the spec specifies.
 
 ## Hyphen Range Comparisons
 
@@ -103,7 +126,7 @@ back to the pack level comparison (see tilde below). For example,
 
 * `1.2.x` is equivalent to `>= 1.2.0, < 1.3.0`
 * `>= 1.2.x` is equivalent to `>= 1.2.0`
-* `<= 2.x` is equivalent to `<= 3`
+* `<= 2.x` is equivalent to `< 3`
 * `*` is equivalent to `>= 0.0.0`
 
 ## Tilde Range Comparisons (Patch)
@@ -124,6 +147,7 @@ The caret (`^`) comparison operator is for major level changes. This is useful
 when comparisons of API versions as a major change is API breaking. For example,
 
 * `^1.2.3` is equivalent to `>= 1.2.3, < 2.0.0`
+* `^0.0.1` is equivalent to `>= 0.0.1, < 1.0.0`
 * `^1.2.x` is equivalent to `>= 1.2.0, < 2.0.0`
 * `^2.3` is equivalent to `>= 2.3, < 3`
 * `^2.x` is equivalent to `>= 2.0.0, < 3`
@@ -157,6 +181,13 @@ version didn't meet the constraint is returned. For example,
     }
 ```
 
+# Fuzzing
+
+ [dvyukov/go-fuzz](https://github.com/dvyukov/go-fuzz) is used for fuzzing.
+
+1. `go-fuzz-build`
+2. `go-fuzz -workdir=fuzz`
+
 # Contribute
 
 If you find an issue or want to contribute please file an [issue](https://github.com/Masterminds/semver/issues)
diff --git a/vendor/github.com/Masterminds/semver/constraints.go b/vendor/github.com/Masterminds/semver/constraints.go
index 4c4fac3b..b94b9341 100644
--- a/vendor/github.com/Masterminds/semver/constraints.go
+++ b/vendor/github.com/Masterminds/semver/constraints.go
@@ -65,13 +65,30 @@ func (cs Constraints) Check(v *Version) bool {
 func (cs Constraints) Validate(v *Version) (bool, []error) {
 	// loop over the ORs and check the inner ANDs
 	var e []error
+
+	// Capture the prerelease message only once. When it happens the first time
+	// this var is marked
+	var prerelesase bool
 	for _, o := range cs.constraints {
 		joy := true
 		for _, c := range o {
-			if !c.check(v) {
-				em := fmt.Errorf(c.msg, v, c.orig)
-				e = append(e, em)
+			// Before running the check handle the case there the version is
+			// a prerelease and the check is not searching for prereleases.
+			if c.con.pre == "" && v.pre != "" {
+				if !prerelesase {
+					em := fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
+					e = append(e, em)
+					prerelesase = true
+				}
 				joy = false
+
+			} else {
+
+				if !c.check(v) {
+					em := fmt.Errorf(c.msg, v, c.orig)
+					e = append(e, em)
+					joy = false
+				}
 			}
 		}
 
@@ -151,6 +168,7 @@ type constraint struct {
 	// When an x is used as part of the version (e.g., 1.x)
 	minorDirty bool
 	dirty      bool
+	patchDirty bool
 }
 
 // Check if a version meets the constraint
@@ -169,16 +187,18 @@ func parseConstraint(c string) (*constraint, error) {
 	ver := m[2]
 	orig := ver
 	minorDirty := false
+	patchDirty := false
 	dirty := false
 	if isX(m[3]) {
 		ver = "0.0.0"
 		dirty = true
-	} else if isX(strings.TrimPrefix(m[4], ".")) {
+	} else if isX(strings.TrimPrefix(m[4], ".")) || m[4] == "" {
 		minorDirty = true
 		dirty = true
 		ver = fmt.Sprintf("%s.0.0%s", m[3], m[6])
 	} else if isX(strings.TrimPrefix(m[5], ".")) {
 		dirty = true
+		patchDirty = true
 		ver = fmt.Sprintf("%s%s.0%s", m[3], m[4], m[6])
 	}
 
@@ -196,6 +216,7 @@ func parseConstraint(c string) (*constraint, error) {
 		con:        con,
 		orig:       orig,
 		minorDirty: minorDirty,
+		patchDirty: patchDirty,
 		dirty:      dirty,
 	}
 	return cs, nil
@@ -229,12 +250,6 @@ func constraintNotEqual(v *Version, c *constraint) bool {
 
 func constraintGreaterThan(v *Version, c *constraint) bool {
 
-	// An edge case the constraint is 0.0.0 and the version is 0.0.0-someprerelease
-	// exists. This that case.
-	if !isNonZero(c.con) && isNonZero(v) {
-		return true
-	}
-
 	// If there is a pre-release on the version but the constraint isn't looking
 	// for them assume that pre-releases are not compatible. See issue 21 for
 	// more details.
@@ -267,11 +282,6 @@ func constraintLessThan(v *Version, c *constraint) bool {
 }
 
 func constraintGreaterThanEqual(v *Version, c *constraint) bool {
-	// An edge case the constraint is 0.0.0 and the version is 0.0.0-someprerelease
-	// exists. This that case.
-	if !isNonZero(c.con) && isNonZero(v) {
-		return true
-	}
 
 	// If there is a pre-release on the version but the constraint isn't looking
 	// for them assume that pre-releases are not compatible. See issue 21 for
@@ -324,7 +334,8 @@ func constraintTilde(v *Version, c *constraint) bool {
 
 	// ~0.0.0 is a special case where all constraints are accepted. It's
 	// equivalent to >= 0.0.0.
-	if c.con.Major() == 0 && c.con.Minor() == 0 && c.con.Patch() == 0 {
+	if c.con.Major() == 0 && c.con.Minor() == 0 && c.con.Patch() == 0 &&
+		!c.minorDirty && !c.patchDirty {
 		return true
 	}
 
@@ -410,12 +421,3 @@ func rewriteRange(i string) string {
 
 	return o
 }
-
-// Detect if a version is not zero (0.0.0)
-func isNonZero(v *Version) bool {
-	if v.Major() != 0 || v.Minor() != 0 || v.Patch() != 0 || v.Prerelease() != "" {
-		return true
-	}
-
-	return false
-}
diff --git a/vendor/github.com/Masterminds/semver/doc.go b/vendor/github.com/Masterminds/semver/doc.go
index e00f65eb..6a6c24c6 100644
--- a/vendor/github.com/Masterminds/semver/doc.go
+++ b/vendor/github.com/Masterminds/semver/doc.go
@@ -47,7 +47,7 @@ parts of the package.
         // Handle constraint not being parseable.
     }
 
-    v, _ := semver.NewVersion("1.3")
+    v, err := semver.NewVersion("1.3")
     if err != nil {
         // Handle version not being parseable.
     }
diff --git a/vendor/github.com/Masterminds/semver/version.go b/vendor/github.com/Masterminds/semver/version.go
index 28b26ac2..400d4f93 100644
--- a/vendor/github.com/Masterminds/semver/version.go
+++ b/vendor/github.com/Masterminds/semver/version.go
@@ -2,6 +2,7 @@ package semver
 
 import (
 	"bytes"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"regexp"
@@ -33,7 +34,7 @@ const SemVerRegex string = `v?([0-9]+)(\.[0-9]+)?(\.[0-9]+)?` +
 
 // ValidPrerelease is the regular expression which validates
 // both prerelease and metadata values.
-const ValidPrerelease string = `^([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*)`
+const ValidPrerelease string = `^([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*)$`
 
 // Version represents a single semantic version.
 type Version struct {
@@ -63,14 +64,14 @@ func NewVersion(v string) (*Version, error) {
 	}
 
 	var temp int64
-	temp, err := strconv.ParseInt(m[1], 10, 32)
+	temp, err := strconv.ParseInt(m[1], 10, 64)
 	if err != nil {
 		return nil, fmt.Errorf("Error parsing version segment: %s", err)
 	}
 	sv.major = temp
 
 	if m[2] != "" {
-		temp, err = strconv.ParseInt(strings.TrimPrefix(m[2], "."), 10, 32)
+		temp, err = strconv.ParseInt(strings.TrimPrefix(m[2], "."), 10, 64)
 		if err != nil {
 			return nil, fmt.Errorf("Error parsing version segment: %s", err)
 		}
@@ -80,7 +81,7 @@ func NewVersion(v string) (*Version, error) {
 	}
 
 	if m[3] != "" {
-		temp, err = strconv.ParseInt(strings.TrimPrefix(m[3], "."), 10, 32)
+		temp, err = strconv.ParseInt(strings.TrimPrefix(m[3], "."), 10, 64)
 		if err != nil {
 			return nil, fmt.Errorf("Error parsing version segment: %s", err)
 		}
@@ -105,7 +106,7 @@ func MustParse(v string) *Version {
 // Note, if the original version contained a leading v this version will not.
 // See the Original() method to retrieve the original value. Semantic Versions
 // don't contain a leading v per the spec. Instead it's optional on
-// impelementation.
+// implementation.
 func (v *Version) String() string {
 	var buf bytes.Buffer
 
@@ -291,6 +292,31 @@ func (v *Version) Compare(o *Version) int {
 	return comparePrerelease(ps, po)
 }
 
+// UnmarshalJSON implements JSON.Unmarshaler interface.
+func (v *Version) UnmarshalJSON(b []byte) error {
+	var s string
+	if err := json.Unmarshal(b, &s); err != nil {
+		return err
+	}
+	temp, err := NewVersion(s)
+	if err != nil {
+		return err
+	}
+	v.major = temp.major
+	v.minor = temp.minor
+	v.patch = temp.patch
+	v.pre = temp.pre
+	v.metadata = temp.metadata
+	v.original = temp.original
+	temp = nil
+	return nil
+}
+
+// MarshalJSON implements JSON.Marshaler interface.
+func (v *Version) MarshalJSON() ([]byte, error) {
+	return json.Marshal(v.String())
+}
+
 func compareSegment(v, o int64) int {
 	if v < o {
 		return -1
@@ -353,23 +379,47 @@ func comparePrePart(s, o string) int {
 
 	// When s or o are empty we can use the other in an attempt to determine
 	// the response.
-	if o == "" {
-		_, n := strconv.ParseInt(s, 10, 64)
-		if n != nil {
+	if s == "" {
+		if o != "" {
 			return -1
 		}
 		return 1
 	}
-	if s == "" {
-		_, n := strconv.ParseInt(o, 10, 64)
-		if n != nil {
+
+	if o == "" {
+		if s != "" {
 			return 1
 		}
 		return -1
 	}
 
-	if s > o {
+	// When comparing strings "99" is greater than "103". To handle
+	// cases like this we need to detect numbers and compare them. According
+	// to the semver spec, numbers are always positive. If there is a - at the
+	// start like -99 this is to be evaluated as an alphanum. numbers always
+	// have precedence over alphanum. Parsing as Uints because negative numbers
+	// are ignored.
+
+	oi, n1 := strconv.ParseUint(o, 10, 64)
+	si, n2 := strconv.ParseUint(s, 10, 64)
+
+	// The case where both are strings compare the strings
+	if n1 != nil && n2 != nil {
+		if s > o {
+			return 1
+		}
+		return -1
+	} else if n1 != nil {
+		// o is a string and s is a number
+		return -1
+	} else if n2 != nil {
+		// s is a string and o is a number
+		return 1
+	}
+	// Both are numbers
+	if si > oi {
 		return 1
 	}
 	return -1
+
 }
diff --git a/vendor/github.com/Masterminds/sprig/CHANGELOG.md b/vendor/github.com/Masterminds/sprig/CHANGELOG.md
index 6154db8e..6a79fbde 100644
--- a/vendor/github.com/Masterminds/sprig/CHANGELOG.md
+++ b/vendor/github.com/Masterminds/sprig/CHANGELOG.md
@@ -1,5 +1,156 @@
 # Changelog
 
+## Release 2.22.0 (2019-10-02)
+
+### Added
+
+- #173: Added getHostByName function to resolve dns names to ips (thanks @fcgravalos)
+- #195: Added deepCopy function for use with dicts
+
+### Changed
+
+- Updated merge and mergeOverwrite documentation to explain copying and how to
+  use deepCopy with it
+
+## Release 2.21.0 (2019-09-18)
+
+### Added
+
+- #122: Added encryptAES/decryptAES functions (thanks @n0madic)
+- #128: Added toDecimal support (thanks @Dean-Coakley)
+- #169: Added list contcat (thanks @astorath)
+- #174: Added deepEqual function (thanks @bonifaido)
+- #170: Added url parse and join functions (thanks @astorath)
+
+### Changed
+
+- #171: Updated glide config for Google UUID to v1 and to add ranges to semver and testify
+
+### Fixed
+
+- #172: Fix semver wildcard example (thanks @piepmatz)
+- #175: Fix dateInZone doc example (thanks @s3than)
+
+## Release 2.20.0 (2019-06-18)
+
+### Added
+
+- #164: Adding function to get unix epoch for a time (@mattfarina)
+- #166: Adding tests for date_in_zone (@mattfarina)
+
+### Changed
+
+- #144: Fix function comments based on best practices from Effective Go (@CodeLingoTeam)
+- #150: Handles pointer type for time.Time in "htmlDate" (@mapreal19)
+- #161, #157, #160,  #153, #158, #156,  #155,  #159, #152 documentation updates (@badeadan)
+
+### Fixed
+
+## Release 2.19.0 (2019-03-02)
+
+IMPORTANT: This release reverts a change from 2.18.0
+
+In the previous release (2.18), we prematurely merged a partial change to the crypto functions that led to creating two sets of crypto functions (I blame @technosophos -- since that's me). This release rolls back that change, and does what was originally intended: It alters the existing crypto functions to use secure random.
+
+We debated whether this classifies as a change worthy of major revision, but given the proximity to the last release, we have decided that treating 2.18 as a faulty release is the correct course of action. We apologize for any inconvenience.
+
+### Changed
+
+- Fix substr panic 35fb796 (Alexey igrychev)
+- Remove extra period 1eb7729 (Matthew Lorimor)
+- Make random string functions use crypto by default 6ceff26 (Matthew Lorimor)
+- README edits/fixes/suggestions 08fe136 (Lauri Apple)
+
+
+## Release 2.18.0 (2019-02-12)
+
+### Added
+
+- Added mergeOverwrite function
+- cryptographic functions that use secure random (see fe1de12)
+
+### Changed
+
+- Improve documentation of regexMatch function, resolves #139 90b89ce (Jan Tagscherer)
+- Handle has for nil list 9c10885 (Daniel Cohen)
+- Document behaviour of mergeOverwrite fe0dbe9 (Lukas Rieder)
+- doc: adds missing documentation. 4b871e6 (Fernandez Ludovic)
+- Replace outdated goutils imports 01893d2 (Matthew Lorimor)
+- Surface crypto secure random strings from goutils fe1de12 (Matthew Lorimor)
+- Handle untyped nil values as paramters to string functions 2b2ec8f (Morten Torkildsen)
+
+### Fixed
+
+- Fix dict merge issue and provide mergeOverwrite .dst .src1 to overwrite from src -> dst 4c59c12 (Lukas Rieder)
+- Fix substr var names and comments d581f80 (Dean Coakley)
+- Fix substr documentation 2737203 (Dean Coakley)
+
+## Release 2.17.1 (2019-01-03)
+
+### Fixed
+
+The 2.17.0 release did not have a version pinned for xstrings, which caused compilation failures when xstrings < 1.2 was used. This adds the correct version string to glide.yaml.
+
+## Release 2.17.0 (2019-01-03)
+
+### Added
+
+- adds alder32sum function and test 6908fc2 (marshallford)
+- Added kebabcase function ca331a1 (Ilyes512)
+
+### Changed
+
+- Update goutils to 1.1.0 4e1125d (Matt Butcher)
+
+### Fixed
+
+- Fix 'has' documentation e3f2a85 (dean-coakley)
+- docs(dict): fix typo in pick example dc424f9 (Dustin Specker)
+- fixes spelling errors... not sure how that happened 4cf188a (marshallford)
+
+## Release 2.16.0 (2018-08-13)
+
+### Added
+
+- add splitn function fccb0b0 (Helgi Þorbjörnsson)
+- Add slice func df28ca7 (gongdo)
+- Generate serial number a3bdffd (Cody Coons)
+- Extract values of dict with values function df39312 (Lawrence Jones)
+
+### Changed
+
+- Modify panic message for list.slice ae38335 (gongdo)
+- Minor improvement in code quality - Removed an unreachable piece of code at defaults.go#L26:6 - Resolve formatting issues. 5834241 (Abhishek Kashyap)
+- Remove duplicated documentation 1d97af1 (Matthew Fisher)
+- Test on go 1.11 49df809 (Helgi Þormar Þorbjörnsson)
+
+### Fixed
+
+- Fix file permissions c5f40b5 (gongdo)
+- Fix example for buildCustomCert 7779e0d (Tin Lam)
+
+## Release 2.15.0 (2018-04-02)
+
+### Added
+
+- #68 and #69: Add json helpers to docs (thanks @arunvelsriram)
+- #66: Add ternary function (thanks @binoculars)
+- #67: Allow keys function to take multiple dicts (thanks @binoculars)
+- #89: Added sha1sum to crypto function (thanks @benkeil)
+- #81: Allow customizing Root CA that used by genSignedCert (thanks @chenzhiwei)
+- #92: Add travis testing for go 1.10
+- #93: Adding appveyor config for windows testing
+
+### Changed
+
+- #90: Updating to more recent dependencies
+- #73: replace satori/go.uuid with google/uuid (thanks @petterw)
+
+### Fixed
+
+- #76: Fixed documentation typos (thanks @Thiht)
+- Fixed rounding issue on the `ago` function. Note, the removes support for Go 1.8 and older
+
 ## Release 2.14.1 (2017-12-01)
 
 ### Fixed
diff --git a/vendor/github.com/Masterminds/sprig/README.md b/vendor/github.com/Masterminds/sprig/README.md
index 25bf3d4f..b7056958 100644
--- a/vendor/github.com/Masterminds/sprig/README.md
+++ b/vendor/github.com/Masterminds/sprig/README.md
@@ -4,21 +4,22 @@
 
 The Go language comes with a [built-in template
 language](http://golang.org/pkg/text/template/), but not
-very many template functions. This library provides a group of commonly
+very many template functions. Sprig is a library that provides more than 100 commonly
 used template functions.
 
 It is inspired by the template functions found in
-[Twig](http://twig.sensiolabs.org/documentation) and also in various
+[Twig](http://twig.sensiolabs.org/documentation) and in various
 JavaScript libraries, such as [underscore.js](http://underscorejs.org/).
 
 ## Usage
 
-Template developers can read the [Sprig function documentation](http://masterminds.github.io/sprig/) to
-learn about the >100 template functions available.
+**Template developers**: Please use Sprig's [function documentation](http://masterminds.github.io/sprig/) for
+detailed instructions and code snippets for the >100 template functions available.
 
-For Go developers wishing to include Sprig as a library in their programs,
-API documentation is available [at GoDoc.org](http://godoc.org/github.com/Masterminds/sprig), but
-read on for standard usage.
+**Go developers**: If you'd like to include Sprig as a library in your program,
+our API documentation is available [at GoDoc.org](http://godoc.org/github.com/Masterminds/sprig).
+
+For standard usage, read on.
 
 ### Load the Sprig library
 
@@ -40,31 +41,27 @@ tpl := template.Must(
 
 ```
 
-### Call the functions inside of templates
+### Calling the functions inside of templates
 
 By convention, all functions are lowercase. This seems to follow the Go
 idiom for template functions (as opposed to template methods, which are
-TitleCase).
-
-
-Example:
+TitleCase). For example, this:
 
 ```
 {{ "hello!" | upper | repeat 5 }}
 ```
 
-Produces:
+produces this:
 
 ```
 HELLO!HELLO!HELLO!HELLO!HELLO!
 ```
 
-## Principles:
+## Principles Driving Our Function Selection
 
-The following principles were used in deciding on which functions to add, and
-determining how to implement them.
+We followed these principles to decide which functions to add and how to implement them:
 
-- Template functions should be used to build layout. Therefore, the following
+- Use template functions to build layout. The following
   types of operations are within the domain of template functions:
   - Formatting
   - Layout
@@ -73,7 +70,7 @@ determining how to implement them.
 - Template functions should not return errors unless there is no way to print
   a sensible value. For example, converting a string to an integer should not
   produce an error if conversion fails. Instead, it should display a default
-  value that can be displayed.
+  value.
 - Simple math is necessary for grid layouts, pagers, and so on. Complex math
   (anything other than arithmetic) should be done outside of templates.
 - Template functions only deal with the data passed into them. They never retrieve
diff --git a/vendor/github.com/Masterminds/sprig/crypto.go b/vendor/github.com/Masterminds/sprig/crypto.go
index d1b46500..7a418ba8 100644
--- a/vendor/github.com/Masterminds/sprig/crypto.go
+++ b/vendor/github.com/Masterminds/sprig/crypto.go
@@ -2,26 +2,32 @@ package sprig
 
 import (
 	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/dsa"
 	"crypto/ecdsa"
 	"crypto/elliptic"
 	"crypto/hmac"
 	"crypto/rand"
 	"crypto/rsa"
+	"crypto/sha1"
 	"crypto/sha256"
 	"crypto/x509"
 	"crypto/x509/pkix"
 	"encoding/asn1"
+	"encoding/base64"
 	"encoding/binary"
 	"encoding/hex"
 	"encoding/pem"
 	"errors"
 	"fmt"
+	"io"
+	"hash/adler32"
 	"math/big"
 	"net"
 	"time"
 
-	uuid "github.com/satori/go.uuid"
+	"github.com/google/uuid"
 	"golang.org/x/crypto/scrypt"
 )
 
@@ -30,9 +36,19 @@ func sha256sum(input string) string {
 	return hex.EncodeToString(hash[:])
 }
 
+func sha1sum(input string) string {
+	hash := sha1.Sum([]byte(input))
+	return hex.EncodeToString(hash[:])
+}
+
+func adler32sum(input string) string {
+	hash := adler32.Checksum([]byte(input))
+	return fmt.Sprintf("%d", hash)
+}
+
 // uuidv4 provides a safe and secure UUID v4 implementation
 func uuidv4() string {
-	return fmt.Sprintf("%s", uuid.NewV4())
+	return fmt.Sprintf("%s", uuid.New())
 }
 
 var master_password_seed = "com.lyndir.masterpassword"
@@ -156,6 +172,49 @@ type certificate struct {
 	Key  string
 }
 
+func buildCustomCertificate(b64cert string, b64key string) (certificate, error) {
+	crt := certificate{}
+
+	cert, err := base64.StdEncoding.DecodeString(b64cert)
+	if err != nil {
+		return crt, errors.New("unable to decode base64 certificate")
+	}
+
+	key, err := base64.StdEncoding.DecodeString(b64key)
+	if err != nil {
+		return crt, errors.New("unable to decode base64 private key")
+	}
+
+	decodedCert, _ := pem.Decode(cert)
+	if decodedCert == nil {
+		return crt, errors.New("unable to decode certificate")
+	}
+	_, err = x509.ParseCertificate(decodedCert.Bytes)
+	if err != nil {
+		return crt, fmt.Errorf(
+			"error parsing certificate: decodedCert.Bytes: %s",
+			err,
+		)
+	}
+
+	decodedKey, _ := pem.Decode(key)
+	if decodedKey == nil {
+		return crt, errors.New("unable to decode key")
+	}
+	_, err = x509.ParsePKCS1PrivateKey(decodedKey.Bytes)
+	if err != nil {
+		return crt, fmt.Errorf(
+			"error parsing prive key: decodedKey.Bytes: %s",
+			err,
+		)
+	}
+
+	crt.Cert = string(cert)
+	crt.Key = string(key)
+
+	return crt, nil
+}
+
 func generateCertificateAuthority(
 	cn string,
 	daysValid int,
@@ -319,8 +378,13 @@ func getBaseCertTemplate(
 	if err != nil {
 		return nil, err
 	}
+	serialNumberUpperBound := new(big.Int).Lsh(big.NewInt(1), 128)
+	serialNumber, err := rand.Int(rand.Reader, serialNumberUpperBound)
+	if err != nil {
+		return nil, err
+	}
 	return &x509.Certificate{
-		SerialNumber: big.NewInt(1),
+		SerialNumber: serialNumber,
 		Subject: pkix.Name{
 			CommonName: cn,
 		},
@@ -378,3 +442,61 @@ func getAlternateDNSStrs(alternateDNS []interface{}) ([]string, error) {
 	}
 	return alternateDNSStrs, nil
 }
+
+func encryptAES(password string, plaintext string) (string, error) {
+	if plaintext == "" {
+		return "", nil
+	}
+
+	key := make([]byte, 32)
+	copy(key, []byte(password))
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+
+	content := []byte(plaintext)
+	blockSize := block.BlockSize()
+	padding := blockSize - len(content)%blockSize
+	padtext := bytes.Repeat([]byte{byte(padding)}, padding)
+	content = append(content, padtext...)
+
+	ciphertext := make([]byte, aes.BlockSize+len(content))
+
+	iv := ciphertext[:aes.BlockSize]
+	if _, err := io.ReadFull(rand.Reader, iv); err != nil {
+		return "", err
+	}
+
+	mode := cipher.NewCBCEncrypter(block, iv)
+	mode.CryptBlocks(ciphertext[aes.BlockSize:], content)
+
+	return base64.StdEncoding.EncodeToString(ciphertext), nil
+}
+
+func decryptAES(password string, crypt64 string) (string, error) {
+	if crypt64 == "" {
+		return "", nil
+	}
+
+	key := make([]byte, 32)
+	copy(key, []byte(password))
+
+	crypt, err := base64.StdEncoding.DecodeString(crypt64)
+	if err != nil {
+		return "", err
+	}
+
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+
+	iv := crypt[:aes.BlockSize]
+	crypt = crypt[aes.BlockSize:]
+	decrypted := make([]byte, len(crypt))
+	mode := cipher.NewCBCDecrypter(block, iv)
+	mode.CryptBlocks(decrypted, crypt)
+
+	return string(decrypted[:len(decrypted)-int(decrypted[len(decrypted)-1])]), nil
+}
diff --git a/vendor/github.com/Masterminds/sprig/date.go b/vendor/github.com/Masterminds/sprig/date.go
index 90bde036..d1d6155d 100644
--- a/vendor/github.com/Masterminds/sprig/date.go
+++ b/vendor/github.com/Masterminds/sprig/date.go
@@ -1,6 +1,7 @@
 package sprig
 
 import (
+	"strconv"
 	"time"
 )
 
@@ -28,6 +29,8 @@ func dateInZone(fmt string, date interface{}, zone string) string {
 		t = time.Now()
 	case time.Time:
 		t = date
+	case *time.Time:
+		t = *date
 	case int64:
 		t = time.Unix(date, 0)
 	case int:
@@ -66,7 +69,7 @@ func dateAgo(date interface{}) string {
 		t = time.Unix(int64(date), 0)
 	}
 	// Drop resolution to seconds
-	duration := time.Since(t) / time.Second * time.Second
+	duration := time.Since(t).Round(time.Second)
 	return duration.String()
 }
 
@@ -74,3 +77,7 @@ func toDate(fmt, str string) time.Time {
 	t, _ := time.ParseInLocation(fmt, str, time.Local)
 	return t
 }
+
+func unixEpoch(date time.Time) string {
+	return strconv.FormatInt(date.Unix(), 10)
+}
diff --git a/vendor/github.com/Masterminds/sprig/defaults.go b/vendor/github.com/Masterminds/sprig/defaults.go
index a2381d66..ed6a8ab2 100644
--- a/vendor/github.com/Masterminds/sprig/defaults.go
+++ b/vendor/github.com/Masterminds/sprig/defaults.go
@@ -49,7 +49,6 @@ func empty(given interface{}) bool {
 	case reflect.Struct:
 		return false
 	}
-	return true
 }
 
 // coalesce returns the first non-empty value.
@@ -73,3 +72,12 @@ func toPrettyJson(v interface{}) string {
 	output, _ := json.MarshalIndent(v, "", "  ")
 	return string(output)
 }
+
+// ternary returns the first value if the last value is true, otherwise returns the second value.
+func ternary(vt interface{}, vf interface{}, v bool) interface{} {
+	if v {
+		return vt
+	}
+
+	return vf
+}
diff --git a/vendor/github.com/Masterminds/sprig/dict.go b/vendor/github.com/Masterminds/sprig/dict.go
index fabc736b..738405b4 100644
--- a/vendor/github.com/Masterminds/sprig/dict.go
+++ b/vendor/github.com/Masterminds/sprig/dict.go
@@ -1,6 +1,9 @@
 package sprig
 
-import "github.com/imdario/mergo"
+import (
+	"github.com/imdario/mergo"
+	"github.com/mitchellh/copystructure"
+)
 
 func set(d map[string]interface{}, key string, value interface{}) map[string]interface{} {
 	d[key] = value
@@ -27,10 +30,12 @@ func pluck(key string, d ...map[string]interface{}) []interface{} {
 	return res
 }
 
-func keys(dict map[string]interface{}) []string {
+func keys(dicts ...map[string]interface{}) []string {
 	k := []string{}
-	for key := range dict {
-		k = append(k, key)
+	for _, dict := range dicts {
+		for key := range dict {
+			k = append(k, key)
+		}
 	}
 	return k
 }
@@ -84,3 +89,31 @@ func merge(dst map[string]interface{}, srcs ...map[string]interface{}) interface
 	}
 	return dst
 }
+
+func mergeOverwrite(dst map[string]interface{}, srcs ...map[string]interface{}) interface{} {
+	for _, src := range srcs {
+		if err := mergo.MergeWithOverwrite(&dst, src); err != nil {
+			// Swallow errors inside of a template.
+			return ""
+		}
+	}
+	return dst
+}
+
+func values(dict map[string]interface{}) []interface{} {
+	values := []interface{}{}
+	for _, value := range dict {
+		values = append(values, value)
+	}
+
+	return values
+}
+
+func deepCopy(i interface{}) interface{} {
+	c, err := copystructure.Copy(i)
+	if err != nil {
+		panic("deepCopy error: " + err.Error())
+	}
+
+	return c
+}
diff --git a/vendor/github.com/Masterminds/sprig/doc.go b/vendor/github.com/Masterminds/sprig/doc.go
index 91ba4dc8..8f8f1d73 100644
--- a/vendor/github.com/Masterminds/sprig/doc.go
+++ b/vendor/github.com/Masterminds/sprig/doc.go
@@ -14,217 +14,6 @@ Note that you should add the function map before you parse any template files.
 	appear in the standard library. This is to make it easier to pipe
 	arguments into functions.
 
-Date Functions
-
-	- date FORMAT TIME: Format a date, where a date is an integer type or a time.Time type, and
-	  format is a time.Format formatting string.
-	- dateModify: Given a date, modify it with a duration: `date_modify "-1.5h" now`. If the duration doesn't
-	  parse, it returns the time unaltered. See `time.ParseDuration` for info on duration strings.
-	- now: Current time.Time, for feeding into date-related functions.
-	- htmlDate TIME: Format a date for use in the value field of an HTML "date" form element.
-	- dateInZone FORMAT TIME TZ: Like date, but takes three arguments: format, timestamp,
-	  timezone.
-	- htmlDateInZone TIME TZ: Like htmlDate, but takes two arguments: timestamp,
-	  timezone.
-
-String Functions
-
-	- abbrev: Truncate a string with ellipses. `abbrev 5 "hello world"` yields "he..."
-	- abbrevboth: Abbreviate from both sides, yielding "...lo wo..."
-	- trunc: Truncate a string (no suffix). `trunc 5 "Hello World"` yields "hello".
-	- trim: strings.TrimSpace
-	- trimAll: strings.Trim, but with the argument order reversed `trimAll "$" "$5.00"` or `"$5.00 | trimAll "$"`
-	- trimSuffix: strings.TrimSuffix, but with the argument order reversed: `trimSuffix "-" "ends-with-"`
-	- trimPrefix: strings.TrimPrefix, but with the argument order reversed `trimPrefix "$" "$5"`
-	- upper: strings.ToUpper
-	- lower: strings.ToLower
-	- nospace: Remove all space characters from a string. `nospace "h e l l o"` becomes "hello"
-	- title: strings.Title
-	- untitle: Remove title casing
-	- repeat: strings.Repeat, but with the arguments switched: `repeat count str`. (This simplifies common pipelines)
-	- substr: Given string, start, and length, return a substr.
-	- initials: Given a multi-word string, return the initials. `initials "Matt Butcher"` returns "MB"
-	- randAlphaNum: Given a length, generate a random alphanumeric sequence
-	- randAlpha: Given a length, generate an alphabetic string
-	- randAscii: Given a length, generate a random ASCII string (symbols included)
-	- randNumeric: Given a length, generate a string of digits.
-	- swapcase: SwapCase swaps the case of a string using a word based algorithm. see https://godoc.org/github.com/Masterminds/goutils#SwapCase
-	- shuffle: Shuffle randomizes runes in a string and returns the result. It uses default random source in `math/rand`
-	- snakecase: convert all upper case characters in a string to underscore format.
-	- camelcase: convert all lower case characters behind underscores to upper case character
-	- wrap: Force a line wrap at the given width. `wrap 80 "imagine a longer string"`
-	- wrapWith: Wrap a line at the given length, but using 'sep' instead of a newline. `wrapWith 50, "<br>", $html`
-	- contains: strings.Contains, but with the arguments switched: `contains substr str`. (This simplifies common pipelines)
-	- hasPrefix: strings.hasPrefix, but with the arguments switched
-	- hasSuffix: strings.hasSuffix, but with the arguments switched
-	- quote: Wrap string(s) in double quotation marks, escape the contents by adding '\' before '"'.
-	- squote: Wrap string(s) in double quotation marks, does not escape content.
-	- cat: Concatenate strings, separating them by spaces. `cat $a $b $c`.
-	- indent: Indent a string using space characters. `indent 4 "foo\nbar"` produces "    foo\n    bar"
-	- nindent: Indent a string using space characters and prepend a new line. `indent 4 "foo\nbar"` produces "\n    foo\n    bar"
-	- replace: Replace an old with a new in a string: `$name | replace " " "-"`
-	- plural: Choose singular or plural based on length: `len $fish | plural "one anchovy" "many anchovies"`
-	- sha256sum: Generate a hex encoded sha256 hash of the input
-	- toString: Convert something to a string
-
-String Slice Functions:
-
-	- join: strings.Join, but as `join SEP SLICE`
-	- split: strings.Split, but as `split SEP STRING`. The results are returned
-	  as a map with the indexes set to _N, where N is an integer starting from 0.
-	  Use it like this: `{{$v := "foo/bar/baz" | split "/"}}{{$v._0}}` (Prints `foo`)
-	- splitList: strings.Split, but as `split SEP STRING`. The results are returned
-	  as an array.
-	- toStrings: convert a list to a list of strings. 'list 1 2 3 | toStrings' produces '["1" "2" "3"]'
-	- sortAlpha: sort a list lexicographically.
-
-Integer Slice Functions:
-
-	- until: Given an integer, returns a slice of counting integers from 0 to one
-	  less than the given integer: `range $i, $e := until 5`
-	- untilStep: Given start, stop, and step, return an integer slice starting at
-	  'start', stopping at `stop`, and incrementing by 'step. This is the same
-	  as Python's long-form of 'range'.
-
-Conversions:
-
-	- atoi: Convert a string to an integer. 0 if the integer could not be parsed.
-	- int64: Convert a string or another numeric type to an int64.
-	- int: Convert a string or another numeric type to an int.
-	- float64: Convert a string or another numeric type to a float64.
-
-Defaults:
-
-	- default: Give a default value. Used like this: trim "   "| default "empty".
-	  Since trim produces an empty string, the default value is returned. For
-	  things with a length (strings, slices, maps), len(0) will trigger the default.
-	  For numbers, the value 0 will trigger the default. For booleans, false will
-	  trigger the default. For structs, the default is never returned (there is
-	  no clear empty condition). For everything else, nil value triggers a default.
-	- empty: Return true if the given value is the zero value for its type.
-	  Caveats: structs are always non-empty. This should match the behavior of
-	  {{if pipeline}}, but can be used inside of a pipeline.
-	- coalesce: Given a list of items, return the first non-empty one.
-	  This follows the same rules as 'empty'. '{{ coalesce .someVal 0 "hello" }}`
-	  will return `.someVal` if set, or else return "hello". The 0 is skipped
-	  because it is an empty value.
-	- compact: Return a copy of a list with all of the empty values removed.
-	  'list 0 1 2 "" | compact' will return '[1 2]'
-
-OS:
-	- env: Resolve an environment variable
-	- expandenv: Expand a string through the environment
-
-File Paths:
-	- base: Return the last element of a path. https://golang.org/pkg/path#Base
-	- dir: Remove the last element of a path. https://golang.org/pkg/path#Dir
-	- clean: Clean a path to the shortest equivalent name.  (e.g. remove "foo/.."
-	  from "foo/../bar.html") https://golang.org/pkg/path#Clean
-	- ext: https://golang.org/pkg/path#Ext
-	- isAbs: https://golang.org/pkg/path#IsAbs
-
-Encoding:
-	- b64enc: Base 64 encode a string.
-	- b64dec: Base 64 decode a string.
-
-Reflection:
-
-	- typeOf: Takes an interface and returns a string representation of the type.
-	  For pointers, this will return a type prefixed with an asterisk(`*`). So
-	  a pointer to type `Foo` will be `*Foo`.
-	- typeIs: Compares an interface with a string name, and returns true if they match.
-	  Note that a pointer will not match a reference. For example `*Foo` will not
-	  match `Foo`.
-	- typeIsLike: Compares an interface with a string name and returns true if
-	  the interface is that `name` or that `*name`. In other words, if the given
-	  value matches the given type or is a pointer to the given type, this returns
-	  true.
-	- kindOf: Takes an interface and returns a string representation of its kind.
-	- kindIs: Returns true if the given string matches the kind of the given interface.
-
-	Note: None of these can test whether or not something implements a given
-	interface, since doing so would require compiling the interface in ahead of
-	time.
-
-Data Structures:
-
-	- tuple: Takes an arbitrary list of items and returns a slice of items. Its
-	  tuple-ish properties are mainly gained through the template idiom, and not
-	  through an API provided here. WARNING: The implementation of tuple will
-	  change in the future.
-	- list: An arbitrary ordered list of items. (This is prefered over tuple.)
-	- dict: Takes a list of name/values and returns a map[string]interface{}.
-	  The first parameter is converted to a string and stored as a key, the
-	  second parameter is treated as the value. And so on, with odds as keys and
-	  evens as values. If the function call ends with an odd, the last key will
-	  be assigned the empty string. Non-string keys are converted to strings as
-	  follows: []byte are converted, fmt.Stringers will have String() called.
-	  errors will have Error() called. All others will be passed through
-	  fmt.Sprtinf("%v").
-
-Lists Functions:
-
-These are used to manipulate lists: '{{ list 1 2 3 | reverse | first }}'
-
-	- first: Get the first item in a 'list'. 'list 1 2 3 | first' prints '1'
-	- last: Get the last item in a 'list': 'list 1 2 3 | last ' prints '3'
-	- rest: Get all but the first item in a list: 'list 1 2 3 | rest' returns '[2 3]'
-	- initial: Get all but the last item in a list: 'list 1 2 3 | initial' returns '[1 2]'
-	- append: Add an item to the end of a list: 'append $list 4' adds '4' to the end of '$list'
-	- prepend: Add an item to the beginning of a list: 'prepend $list 4' puts 4 at the beginning of the list.
-	- reverse: Reverse the items in a list.
-	- uniq: Remove duplicates from a list.
-	- without: Return a list with the given values removed: 'without (list 1 2 3) 1' would return '[2 3]'
-	- has: Return 'true' if the item is found in the list: 'has "foo" $list' will return 'true' if the list contains "foo"
-
-Dict Functions:
-
-These are used to manipulate dicts.
-
-	- set: Takes a dict, a key, and a value, and sets that key/value pair in
-	  the dict. `set $dict $key $value`. For convenience, it returns the dict,
-	  even though the dict was modified in place.
-	- unset: Takes a dict and a key, and deletes that key/value pair from the
-	  dict. `unset $dict $key`. This returns the dict for convenience.
-	- hasKey: Takes a dict and a key, and returns boolean true if the key is in
-	  the dict.
-	- pluck: Given a key and one or more maps, get all of the values for that key.
-	- keys: Get an array of all of the keys in a dict.
-	- pick: Select just the given keys out of the dict, and return a new dict.
-	- omit: Return a dict without the given keys.
-
-Math Functions:
-
-Integer functions will convert integers of any width to `int64`. If a
-string is passed in, functions will attempt to convert with
-`strconv.ParseInt(s, 1064)`. If this fails, the value will be treated as 0.
-
-	- add1: Increment an integer by 1
-	- add: Sum an arbitrary number of integers
-	- sub: Subtract the second integer from the first
-	- div: Divide the first integer by the second
-	- mod: Module of first integer divided by second
-	- mul: Multiply integers
-	- max: Return the biggest of a series of one or more integers
-	- min: Return the smallest of a series of one or more integers
-	- biggest: DEPRECATED. Return the biggest of a series of one or more integers
-
-Crypto Functions:
-
-	- genPrivateKey: Generate a private key for the given cryptosystem. If no
-	  argument is supplied, by default it will generate a private key using
-	  the RSA algorithm. Accepted values are `rsa`, `dsa`, and `ecdsa`.
-	- derivePassword: Derive a password from the given parameters according to the ["Master Password" algorithm](http://masterpasswordapp.com/algorithm.html)
-	  Given parameters (in order) are:
-          `counter` (starting with 1), `password_type` (maximum, long, medium, short, basic, or pin), `password`,
-           `user`, and `site`
-
-SemVer Functions:
-
-These functions provide version parsing and comparisons for SemVer 2 version
-strings.
-
-	- semver: Parse a semantic version and return a Version object.
-	- semverCompare: Compare a SemVer range to a particular version.
+See http://masterminds.github.io/sprig/ for more detailed documentation on each of the available functions.
 */
 package sprig
diff --git a/vendor/github.com/Masterminds/sprig/functions.go b/vendor/github.com/Masterminds/sprig/functions.go
index c36dc55c..7b5b0af8 100644
--- a/vendor/github.com/Masterminds/sprig/functions.go
+++ b/vendor/github.com/Masterminds/sprig/functions.go
@@ -5,12 +5,13 @@ import (
 	"html/template"
 	"os"
 	"path"
+	"reflect"
 	"strconv"
 	"strings"
 	ttemplate "text/template"
 	"time"
 
-	util "github.com/aokoli/goutils"
+	util "github.com/Masterminds/goutils"
 	"github.com/huandu/xstrings"
 )
 
@@ -24,7 +25,7 @@ func FuncMap() template.FuncMap {
 	return HtmlFuncMap()
 }
 
-// HermeticTextFuncMap returns a 'text/template'.FuncMap with only repeatable functions.
+// HermeticTxtFuncMap returns a 'text/template'.FuncMap with only repeatable functions.
 func HermeticTxtFuncMap() ttemplate.FuncMap {
 	r := TxtFuncMap()
 	for _, name := range nonhermeticFunctions {
@@ -42,7 +43,7 @@ func HermeticHtmlFuncMap() template.FuncMap {
 	return r
 }
 
-// TextFuncMap returns a 'text/template'.FuncMap
+// TxtFuncMap returns a 'text/template'.FuncMap
 func TxtFuncMap() ttemplate.FuncMap {
 	return ttemplate.FuncMap(GenericFuncMap())
 }
@@ -84,6 +85,9 @@ var nonhermeticFunctions = []string{
 	// OS
 	"env",
 	"expandenv",
+
+	// Network
+	"getHostByName",
 }
 
 var genericMap = map[string]interface{}{
@@ -100,6 +104,7 @@ var genericMap = map[string]interface{}{
 	"dateModify":     dateModify,
 	"ago":            dateAgo,
 	"toDate":         toDate,
+	"unixEpoch":      unixEpoch,
 
 	// Strings
 	"abbrev":     abbrev,
@@ -129,27 +134,31 @@ var genericMap = map[string]interface{}{
 	"shuffle":      xstrings.Shuffle,
 	"snakecase":    xstrings.ToSnakeCase,
 	"camelcase":    xstrings.ToCamelCase,
+	"kebabcase":    xstrings.ToKebabCase,
 	"wrap":         func(l int, s string) string { return util.Wrap(s, l) },
 	"wrapWith":     func(l int, sep, str string) string { return util.WrapCustom(str, l, sep, true) },
 	// Switch order so that "foobar" | contains "foo"
-	"contains":  func(substr string, str string) bool { return strings.Contains(str, substr) },
-	"hasPrefix": func(substr string, str string) bool { return strings.HasPrefix(str, substr) },
-	"hasSuffix": func(substr string, str string) bool { return strings.HasSuffix(str, substr) },
-	"quote":     quote,
-	"squote":    squote,
-	"cat":       cat,
-	"indent":    indent,
-	"nindent":   nindent,
-	"replace":   replace,
-	"plural":    plural,
-	"sha256sum": sha256sum,
-	"toString":  strval,
+	"contains":   func(substr string, str string) bool { return strings.Contains(str, substr) },
+	"hasPrefix":  func(substr string, str string) bool { return strings.HasPrefix(str, substr) },
+	"hasSuffix":  func(substr string, str string) bool { return strings.HasSuffix(str, substr) },
+	"quote":      quote,
+	"squote":     squote,
+	"cat":        cat,
+	"indent":     indent,
+	"nindent":    nindent,
+	"replace":    replace,
+	"plural":     plural,
+	"sha1sum":    sha1sum,
+	"sha256sum":  sha256sum,
+	"adler32sum": adler32sum,
+	"toString":   strval,
 
 	// Wrap Atoi to stop errors.
-	"atoi":    func(a string) int { i, _ := strconv.Atoi(a); return i },
-	"int64":   toInt64,
-	"int":     toInt,
-	"float64": toFloat64,
+	"atoi":      func(a string) int { i, _ := strconv.Atoi(a); return i },
+	"int64":     toInt64,
+	"int":       toInt,
+	"float64":   toFloat64,
+	"toDecimal": toDecimal,
 
 	//"gt": func(a, b int) bool {return a > b},
 	//"gte": func(a, b int) bool {return a >= b},
@@ -159,6 +168,8 @@ var genericMap = map[string]interface{}{
 	// split "/" foo/bar returns map[int]string{0: foo, 1: bar}
 	"split":     split,
 	"splitList": func(sep, orig string) []string { return strings.Split(orig, sep) },
+	// splitn "/" foo/bar/fuu returns map[int]string{0: foo, 1: bar/fuu}
+	"splitn":    splitn,
 	"toStrings": strslice,
 
 	"until":     until,
@@ -200,8 +211,10 @@ var genericMap = map[string]interface{}{
 	"empty":        empty,
 	"coalesce":     coalesce,
 	"compact":      compact,
+	"deepCopy":     deepCopy,
 	"toJson":       toJson,
 	"toPrettyJson": toPrettyJson,
+	"ternary":      ternary,
 
 	// Reflection
 	"typeOf":     typeOf,
@@ -209,11 +222,15 @@ var genericMap = map[string]interface{}{
 	"typeIsLike": typeIsLike,
 	"kindOf":     kindOf,
 	"kindIs":     kindIs,
+	"deepEqual":  reflect.DeepEqual,
 
 	// OS:
 	"env":       func(s string) string { return os.Getenv(s) },
 	"expandenv": func(s string) string { return os.ExpandEnv(s) },
 
+	// Network:
+	"getHostByName": getHostByName,
+
 	// File Paths:
 	"base":  path.Base,
 	"dir":   path.Dir,
@@ -228,17 +245,19 @@ var genericMap = map[string]interface{}{
 	"b32dec": base32decode,
 
 	// Data Structures:
-	"tuple":  list, // FIXME: with the addition of append/prepend these are no longer immutable.
-	"list":   list,
-	"dict":   dict,
-	"set":    set,
-	"unset":  unset,
-	"hasKey": hasKey,
-	"pluck":  pluck,
-	"keys":   keys,
-	"pick":   pick,
-	"omit":   omit,
-	"merge":  merge,
+	"tuple":          list, // FIXME: with the addition of append/prepend these are no longer immutable.
+	"list":           list,
+	"dict":           dict,
+	"set":            set,
+	"unset":          unset,
+	"hasKey":         hasKey,
+	"pluck":          pluck,
+	"keys":           keys,
+	"pick":           pick,
+	"omit":           omit,
+	"merge":          merge,
+	"mergeOverwrite": mergeOverwrite,
+	"values":         values,
 
 	"append": push, "push": push,
 	"prepend": prepend,
@@ -250,13 +269,18 @@ var genericMap = map[string]interface{}{
 	"uniq":    uniq,
 	"without": without,
 	"has":     has,
+	"slice":   slice,
+	"concat":  concat,
 
 	// Crypto:
 	"genPrivateKey":     generatePrivateKey,
 	"derivePassword":    derivePassword,
+	"buildCustomCert":   buildCustomCertificate,
 	"genCA":             generateCertificateAuthority,
 	"genSelfSignedCert": generateSelfSignedCertificate,
 	"genSignedCert":     generateSignedCertificate,
+	"encryptAES":        encryptAES,
+	"decryptAES":        decryptAES,
 
 	// UUIDs:
 	"uuidv4": uuidv4,
@@ -275,4 +299,8 @@ var genericMap = map[string]interface{}{
 	"regexReplaceAll":        regexReplaceAll,
 	"regexReplaceAllLiteral": regexReplaceAllLiteral,
 	"regexSplit":             regexSplit,
+
+	// URLs:
+	"urlParse": urlParse,
+	"urlJoin":  urlJoin,
 }
diff --git a/vendor/github.com/Masterminds/sprig/glide.lock b/vendor/github.com/Masterminds/sprig/glide.lock
deleted file mode 100644
index faf04f95..00000000
--- a/vendor/github.com/Masterminds/sprig/glide.lock
+++ /dev/null
@@ -1,33 +0,0 @@
-hash: b9cc40bfd6dde74a94103b96700df1a9ab29a7fff5650216cf5a05f4fe72fb73
-updated: 2017-05-02T16:01:04.617727646-06:00
-imports:
-- name: github.com/aokoli/goutils
-  version: 9c37978a95bd5c709a15883b6242714ea6709e64
-- name: github.com/huandu/xstrings
-  version: 3959339b333561bf62a38b424fd41517c2c90f40
-- name: github.com/imdario/mergo
-  version: 3e95a51e0639b4cf372f2ccf74c86749d747fbdc
-- name: github.com/Masterminds/goutils
-  version: 45307ec16e3cd47cd841506c081f7afd8237d210
-- name: github.com/Masterminds/semver
-  version: 59c29afe1a994eacb71c833025ca7acf874bb1da
-- name: github.com/satori/go.uuid
-  version: 879c5887cd475cd7864858769793b2ceb0d44feb
-- name: github.com/stretchr/testify
-  version: e3a8ff8ce36581f87a15341206f205b1da467059
-  subpackages:
-  - assert
-- name: golang.org/x/crypto
-  version: d172538b2cfce0c13cee31e647d0367aa8cd2486
-  subpackages:
-  - pbkdf2
-  - scrypt
-testImports:
-- name: github.com/davecgh/go-spew
-  version: 5215b55f46b2b919f50a1df0eaa5886afe4e3b3d
-  subpackages:
-  - spew
-- name: github.com/pmezard/go-difflib
-  version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
-  subpackages:
-  - difflib
diff --git a/vendor/github.com/Masterminds/sprig/glide.yaml b/vendor/github.com/Masterminds/sprig/glide.yaml
index 5e82dcfb..f317d2b2 100644
--- a/vendor/github.com/Masterminds/sprig/glide.yaml
+++ b/vendor/github.com/Masterminds/sprig/glide.yaml
@@ -2,14 +2,18 @@ package: github.com/Masterminds/sprig
 import:
 - package: github.com/Masterminds/goutils
   version: ^1.0.0
-- package: github.com/satori/go.uuid
-  version: ^1.1.0
+- package: github.com/google/uuid
+  version: ^1.0.0
 - package: golang.org/x/crypto
   subpackages:
   - scrypt
 - package: github.com/Masterminds/semver
-  version: v1.2.2
+  version: ^v1.2.2
 - package: github.com/stretchr/testify
+  version: ^v1.2.2
 - package: github.com/imdario/mergo
-  version: ~0.2.2
+  version: ~0.3.7
 - package: github.com/huandu/xstrings
+  version: ^1.2
+- package: github.com/mitchellh/copystructure
+  version: ^1.0.0
diff --git a/vendor/github.com/Masterminds/sprig/list.go b/vendor/github.com/Masterminds/sprig/list.go
index 1860549a..c0381bbb 100644
--- a/vendor/github.com/Masterminds/sprig/list.go
+++ b/vendor/github.com/Masterminds/sprig/list.go
@@ -239,6 +239,9 @@ func without(list interface{}, omit ...interface{}) []interface{} {
 }
 
 func has(needle interface{}, haystack interface{}) bool {
+	if haystack == nil {
+		return false
+	}
 	tp := reflect.TypeOf(haystack).Kind()
 	switch tp {
 	case reflect.Slice, reflect.Array:
@@ -257,3 +260,52 @@ func has(needle interface{}, haystack interface{}) bool {
 		panic(fmt.Sprintf("Cannot find has on type %s", tp))
 	}
 }
+
+// $list := [1, 2, 3, 4, 5]
+// slice $list     -> list[0:5] = list[:]
+// slice $list 0 3 -> list[0:3] = list[:3]
+// slice $list 3 5 -> list[3:5]
+// slice $list 3   -> list[3:5] = list[3:]
+func slice(list interface{}, indices ...interface{}) interface{} {
+	tp := reflect.TypeOf(list).Kind()
+	switch tp {
+	case reflect.Slice, reflect.Array:
+		l2 := reflect.ValueOf(list)
+
+		l := l2.Len()
+		if l == 0 {
+			return nil
+		}
+
+		var start, end int
+		if len(indices) > 0 {
+			start = toInt(indices[0])
+		}
+		if len(indices) < 2 {
+			end = l
+		} else {
+			end = toInt(indices[1])
+		}
+
+		return l2.Slice(start, end).Interface()
+	default:
+		panic(fmt.Sprintf("list should be type of slice or array but %s", tp))
+	}
+}
+
+func concat(lists ...interface{}) interface{} {
+	var res []interface{}
+	for _, list := range lists {
+		tp := reflect.TypeOf(list).Kind()
+		switch tp {
+		case reflect.Slice, reflect.Array:
+			l2 := reflect.ValueOf(list)
+			for i := 0; i < l2.Len(); i++ {
+				res = append(res, l2.Index(i).Interface())
+			}
+		default:
+			panic(fmt.Sprintf("Cannot concat type %s as list", tp))
+		}
+	}
+	return res
+}
diff --git a/vendor/github.com/Masterminds/sprig/numeric.go b/vendor/github.com/Masterminds/sprig/numeric.go
index 209c62e5..f4af4af2 100644
--- a/vendor/github.com/Masterminds/sprig/numeric.go
+++ b/vendor/github.com/Masterminds/sprig/numeric.go
@@ -1,6 +1,7 @@
 package sprig
 
 import (
+	"fmt"
 	"math"
 	"reflect"
 	"strconv"
@@ -156,4 +157,13 @@ func round(a interface{}, p int, r_opt ...float64) float64 {
 		round = math.Floor(digit)
 	}
 	return round / pow
-}
\ No newline at end of file
+}
+
+// converts unix octal to decimal
+func toDecimal(v interface{}) int64 {
+	result, err := strconv.ParseInt(fmt.Sprint(v), 8, 64)
+	if err != nil {
+		return 0
+	}
+	return result
+}
diff --git a/vendor/github.com/Masterminds/sprig/regex.go b/vendor/github.com/Masterminds/sprig/regex.go
index 9fe033a6..2016f663 100644
--- a/vendor/github.com/Masterminds/sprig/regex.go
+++ b/vendor/github.com/Masterminds/sprig/regex.go
@@ -32,4 +32,4 @@ func regexReplaceAllLiteral(regex string, s string, repl string) string {
 func regexSplit(regex string, s string, n int) []string {
 	r := regexp.MustCompile(regex)
 	return r.Split(s, n)
-}
\ No newline at end of file
+}
diff --git a/vendor/github.com/Masterminds/sprig/strings.go b/vendor/github.com/Masterminds/sprig/strings.go
index f6afa2ff..943fa3e8 100644
--- a/vendor/github.com/Masterminds/sprig/strings.go
+++ b/vendor/github.com/Masterminds/sprig/strings.go
@@ -8,7 +8,7 @@ import (
 	"strconv"
 	"strings"
 
-	util "github.com/aokoli/goutils"
+	util "github.com/Masterminds/goutils"
 )
 
 func base64encode(v string) string {
@@ -57,22 +57,22 @@ func initials(s string) string {
 
 func randAlphaNumeric(count int) string {
 	// It is not possible, it appears, to actually generate an error here.
-	r, _ := util.RandomAlphaNumeric(count)
+	r, _ := util.CryptoRandomAlphaNumeric(count)
 	return r
 }
 
 func randAlpha(count int) string {
-	r, _ := util.RandomAlphabetic(count)
+	r, _ := util.CryptoRandomAlphabetic(count)
 	return r
 }
 
 func randAscii(count int) string {
-	r, _ := util.RandomAscii(count)
+	r, _ := util.CryptoRandomAscii(count)
 	return r
 }
 
 func randNumeric(count int) string {
-	r, _ := util.RandomNumeric(count)
+	r, _ := util.CryptoRandomNumeric(count)
 	return r
 }
 
@@ -81,22 +81,27 @@ func untitle(str string) string {
 }
 
 func quote(str ...interface{}) string {
-	out := make([]string, len(str))
-	for i, s := range str {
-		out[i] = fmt.Sprintf("%q", strval(s))
+	out := make([]string, 0, len(str))
+	for _, s := range str {
+		if s != nil {
+			out = append(out, fmt.Sprintf("%q", strval(s)))
+		}
 	}
 	return strings.Join(out, " ")
 }
 
 func squote(str ...interface{}) string {
-	out := make([]string, len(str))
-	for i, s := range str {
-		out[i] = fmt.Sprintf("'%v'", s)
+	out := make([]string, 0, len(str))
+	for _, s := range str {
+		if s != nil {
+			out = append(out, fmt.Sprintf("'%v'", s))
+		}
 	}
 	return strings.Join(out, " ")
 }
 
 func cat(v ...interface{}) string {
+	v = removeNilElements(v)
 	r := strings.TrimSpace(strings.Repeat("%v ", len(v)))
 	return fmt.Sprintf(r, v...)
 }
@@ -126,10 +131,11 @@ func strslice(v interface{}) []string {
 	case []string:
 		return v
 	case []interface{}:
-		l := len(v)
-		b := make([]string, l)
-		for i := 0; i < l; i++ {
-			b[i] = strval(v[i])
+		b := make([]string, 0, len(v))
+		for _, s := range v {
+			if s != nil {
+				b = append(b, strval(s))
+			}
 		}
 		return b
 	default:
@@ -137,15 +143,32 @@ func strslice(v interface{}) []string {
 		switch val.Kind() {
 		case reflect.Array, reflect.Slice:
 			l := val.Len()
-			b := make([]string, l)
+			b := make([]string, 0, l)
 			for i := 0; i < l; i++ {
-				b[i] = strval(val.Index(i).Interface())
+				value := val.Index(i).Interface()
+				if value != nil {
+					b = append(b, strval(value))
+				}
 			}
 			return b
 		default:
-			return []string{strval(v)}
+			if v == nil {
+				return []string{}
+			} else {
+				return []string{strval(v)}
+			}
+		}
+	}
+}
+
+func removeNilElements(v []interface{}) []interface{} {
+	newSlice := make([]interface{}, 0, len(v))
+	for _, i := range v {
+		if i != nil {
+			newSlice = append(newSlice, i)
 		}
 	}
+	return newSlice
 }
 
 func strval(v interface{}) string {
@@ -183,19 +206,28 @@ func split(sep, orig string) map[string]string {
 	return res
 }
 
+func splitn(sep string, n int, orig string) map[string]string {
+	parts := strings.SplitN(orig, sep, n)
+	res := make(map[string]string, len(parts))
+	for i, v := range parts {
+		res["_"+strconv.Itoa(i)] = v
+	}
+	return res
+}
+
 // substring creates a substring of the given string.
 //
-// If start is < 0, this calls string[:length].
+// If start is < 0, this calls string[:end].
 //
-// If start is >= 0 and length < 0, this calls string[start:]
+// If start is >= 0 and end < 0 or end bigger than s length, this calls string[start:]
 //
-// Otherwise, this calls string[start, length].
-func substring(start, length int, s string) string {
+// Otherwise, this calls string[start, end].
+func substring(start, end int, s string) string {
 	if start < 0 {
-		return s[:length]
+		return s[:end]
 	}
-	if length < 0 {
+	if end < 0 || end > len(s) {
 		return s[start:]
 	}
-	return s[start:length]
+	return s[start:end]
 }
diff --git a/vendor/github.com/aokoli/goutils/LICENSE.txt b/vendor/github.com/aokoli/goutils/LICENSE.txt
deleted file mode 100644
index d6456956..00000000
--- a/vendor/github.com/aokoli/goutils/LICENSE.txt
+++ /dev/null
@@ -1,202 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
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-      Work and such Derivative Works in Source or Object form.
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-      or a Contribution incorporated within the Work constitutes direct
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-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
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-      meet the following conditions:
-
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-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
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-
-      (d) If the Work includes a "NOTICE" text file as part of its
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-          of the NOTICE file are for informational purposes only and
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-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
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-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
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-   Copyright [yyyy] [name of copyright owner]
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-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
diff --git a/vendor/github.com/aokoli/goutils/README.md b/vendor/github.com/aokoli/goutils/README.md
deleted file mode 100644
index 163ffe72..00000000
--- a/vendor/github.com/aokoli/goutils/README.md
+++ /dev/null
@@ -1,70 +0,0 @@
-GoUtils
-===========
-[![Stability: Maintenance](https://masterminds.github.io/stability/maintenance.svg)](https://masterminds.github.io/stability/maintenance.html)
-[![GoDoc](https://godoc.org/github.com/Masterminds/goutils?status.png)](https://godoc.org/github.com/Masterminds/goutils) [![Build Status](https://travis-ci.org/Masterminds/goutils.svg?branch=master)](https://travis-ci.org/Masterminds/goutils) [![Build status](https://ci.appveyor.com/api/projects/status/sc2b1ew0m7f0aiju?svg=true)](https://ci.appveyor.com/project/mattfarina/goutils)
-
-
-GoUtils provides users with utility functions to manipulate strings in various ways. It is a Go implementation of some
-string manipulation libraries of Java Apache Commons. GoUtils includes the following Java Apache Commons classes:
-* WordUtils    
-* RandomStringUtils  
-* StringUtils (partial implementation)
-
-## Installation
-If you have Go set up on your system, from the GOPATH directory within the command line/terminal, enter this:
-
-	go get github.com/Masterminds/goutils
-
-If you do not have Go set up on your system, please follow the [Go installation directions from the documenation](http://golang.org/doc/install), and then follow the instructions above to install GoUtils.
-
-
-## Documentation
-GoUtils doc is available here: [![GoDoc](https://godoc.org/github.com/Masterminds/goutils?status.png)](https://godoc.org/github.com/Masterminds/goutils)
-
-
-## Usage
-The code snippets below show examples of how to use GoUtils. Some functions return errors while others do not. The first instance below, which does not return an error, is the `Initials` function (located within the `wordutils.go` file).
-
-    package main
-
-    import (
-        "fmt"
-    	"github.com/Masterminds/goutils"
-    )
-
-    func main() {
-
-    	// EXAMPLE 1: A goutils function which returns no errors
-        fmt.Println (goutils.Initials("John Doe Foo")) // Prints out "JDF"
-
-    }
-Some functions return errors mainly due to illegal arguements used as parameters. The code example below illustrates how to deal with function that returns an error. In this instance, the function is the `Random` function (located within the `randomstringutils.go` file).
-
-    package main
-
-    import (
-        "fmt"
-        "github.com/Masterminds/goutils"
-    )
-
-    func main() {
-
-        // EXAMPLE 2: A goutils function which returns an error
-        rand1, err1 := goutils.Random (-1, 0, 0, true, true)  
-
-        if err1 != nil {
-			fmt.Println(err1) // Prints out error message because -1 was entered as the first parameter in goutils.Random(...)
-		} else {
-			fmt.Println(rand1)
-		}
-
-    }
-
-## License
-GoUtils is licensed under the Apache License, Version 2.0. Please check the LICENSE.txt file or visit http://www.apache.org/licenses/LICENSE-2.0 for a copy of the license.
-
-## Issue Reporting
-Make suggestions or report issues using the Git issue tracker: https://github.com/Masterminds/goutils/issues
-
-## Website
-* [GoUtils webpage](http://Masterminds.github.io/goutils/)
diff --git a/vendor/github.com/aokoli/goutils/appveyor.yml b/vendor/github.com/aokoli/goutils/appveyor.yml
deleted file mode 100644
index 657564a8..00000000
--- a/vendor/github.com/aokoli/goutils/appveyor.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-version: build-{build}.{branch}
-
-clone_folder: C:\gopath\src\github.com\Masterminds\goutils
-shallow_clone: true
-
-environment:
-  GOPATH: C:\gopath
-
-platform:
-  - x64
-
-build: off
-
-install:
-  - go version
-  - go env
-
-test_script:
-  - go test -v
-
-deploy: off
diff --git a/vendor/github.com/aokoli/goutils/randomstringutils.go b/vendor/github.com/aokoli/goutils/randomstringutils.go
deleted file mode 100644
index eff2e7d5..00000000
--- a/vendor/github.com/aokoli/goutils/randomstringutils.go
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
-Copyright 2014 Alexander Okoli
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package goutils
-
-import (
-	"fmt"
-	"math"
-	"math/rand"
-	"time"
-	"unicode"
-)
-
-// RANDOM provides the time-based seed used to generate random numbers
-var RANDOM = rand.New(rand.NewSource(time.Now().UnixNano()))
-
-/*
-RandomNonAlphaNumeric creates a random string whose length is the number of characters specified.
-Characters will be chosen from the set of all characters (ASCII/Unicode values between 0 to 2,147,483,647 (math.MaxInt32)).
-
-Parameter:
-	count - the length of random string to create
-
-Returns:
-	string - the random string
-	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
-*/
-func RandomNonAlphaNumeric(count int) (string, error) {
-	return RandomAlphaNumericCustom(count, false, false)
-}
-
-/*
-RandomAscii creates a random string whose length is the number of characters specified.
-Characters will be chosen from the set of characters whose ASCII value is between 32 and 126 (inclusive).
-
-Parameter:
-	count - the length of random string to create
-
-Returns:
-	string - the random string
-	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
-*/
-func RandomAscii(count int) (string, error) {
-	return Random(count, 32, 127, false, false)
-}
-
-/*
-RandomNumeric creates a random string whose length is the number of characters specified.
-Characters will be chosen from the set of numeric characters.
-
-Parameter:
-	count - the length of random string to create
-
-Returns:
-	string - the random string
-	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
-*/
-func RandomNumeric(count int) (string, error) {
-	return Random(count, 0, 0, false, true)
-}
-
-/*
-RandomAlphabetic creates a random string whose length is the number of characters specified.
-Characters will be chosen from the set of alpha-numeric characters as indicated by the arguments.
-
-Parameters:
-	count - the length of random string to create
-	letters - if true, generated string may include alphabetic characters
-	numbers - if true, generated string may include numeric characters
-
-Returns:
-	string - the random string
-	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
-*/
-func RandomAlphabetic(count int) (string, error) {
-	return Random(count, 0, 0, true, false)
-}
-
-/*
-RandomAlphaNumeric creates a random string whose length is the number of characters specified.
-Characters will be chosen from the set of alpha-numeric characters.
-
-Parameter:
-	count - the length of random string to create
-
-Returns:
-	string - the random string
-	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
-*/
-func RandomAlphaNumeric(count int) (string, error) {
-	return Random(count, 0, 0, true, true)
-}
-
-/*
-RandomAlphaNumericCustom creates a random string whose length is the number of characters specified.
-Characters will be chosen from the set of alpha-numeric characters as indicated by the arguments.
-
-Parameters:
-	count - the length of random string to create
-	letters - if true, generated string may include alphabetic characters
-	numbers - if true, generated string may include numeric characters
-
-Returns:
-	string - the random string
-	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
-*/
-func RandomAlphaNumericCustom(count int, letters bool, numbers bool) (string, error) {
-	return Random(count, 0, 0, letters, numbers)
-}
-
-/*
-Random creates a random string based on a variety of options, using default source of randomness.
-This method has exactly the same semantics as RandomSeed(int, int, int, bool, bool, []char, *rand.Rand), but
-instead of using an externally supplied source of randomness, it uses the internal *rand.Rand instance.
-
-Parameters:
-	count - the length of random string to create
-	start - the position in set of chars (ASCII/Unicode int) to start at
-	end - the position in set of chars (ASCII/Unicode int) to end before
-	letters - if true, generated string may include alphabetic characters
-	numbers - if true, generated string may include numeric characters
-	chars - the set of chars to choose randoms from. If nil, then it will use the set of all chars.
-
-Returns:
-	string - the random string
-	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
-*/
-func Random(count int, start int, end int, letters bool, numbers bool, chars ...rune) (string, error) {
-	return RandomSeed(count, start, end, letters, numbers, chars, RANDOM)
-}
-
-/*
-RandomSeed creates a random string based on a variety of options, using supplied source of randomness.
-If the parameters start and end are both 0, start and end are set to ' ' and 'z', the ASCII printable characters, will be used,
-unless letters and numbers are both false, in which case, start and end are set to 0 and math.MaxInt32, respectively.
-If chars is not nil, characters stored in chars that are between start and end are chosen.
-This method accepts a user-supplied *rand.Rand instance to use as a source of randomness. By seeding a single *rand.Rand instance
-with a fixed seed and using it for each call, the same random sequence of strings can be generated repeatedly and predictably.
-
-Parameters:
-	count - the length of random string to create
-	start - the position in set of chars (ASCII/Unicode decimals) to start at
-	end - the position in set of chars (ASCII/Unicode decimals) to end before
-	letters - if true, generated string may include alphabetic characters
-	numbers - if true, generated string may include numeric characters
-	chars - the set of chars to choose randoms from. If nil, then it will use the set of all chars.
-	random - a source of randomness.
-
-Returns:
-	string - the random string
-	error - an error stemming from invalid parameters: if count < 0; or the provided chars array is empty; or end <= start; or end > len(chars)
-*/
-func RandomSeed(count int, start int, end int, letters bool, numbers bool, chars []rune, random *rand.Rand) (string, error) {
-
-	if count == 0 {
-		return "", nil
-	} else if count < 0 {
-		err := fmt.Errorf("randomstringutils illegal argument: Requested random string length %v is less than 0.", count) // equiv to err := errors.New("...")
-		return "", err
-	}
-	if chars != nil && len(chars) == 0 {
-		err := fmt.Errorf("randomstringutils illegal argument: The chars array must not be empty")
-		return "", err
-	}
-
-	if start == 0 && end == 0 {
-		if chars != nil {
-			end = len(chars)
-		} else {
-			if !letters && !numbers {
-				end = math.MaxInt32
-			} else {
-				end = 'z' + 1
-				start = ' '
-			}
-		}
-	} else {
-		if end <= start {
-			err := fmt.Errorf("randomstringutils illegal argument: Parameter end (%v) must be greater than start (%v)", end, start)
-			return "", err
-		}
-
-		if chars != nil && end > len(chars) {
-			err := fmt.Errorf("randomstringutils illegal argument: Parameter end (%v) cannot be greater than len(chars) (%v)", end, len(chars))
-			return "", err
-		}
-	}
-
-	buffer := make([]rune, count)
-	gap := end - start
-
-	// high-surrogates range, (\uD800-\uDBFF) = 55296 - 56319
-	//  low-surrogates range, (\uDC00-\uDFFF) = 56320 - 57343
-
-	for count != 0 {
-		count--
-		var ch rune
-		if chars == nil {
-			ch = rune(random.Intn(gap) + start)
-		} else {
-			ch = chars[random.Intn(gap)+start]
-		}
-
-		if letters && unicode.IsLetter(ch) || numbers && unicode.IsDigit(ch) || !letters && !numbers {
-			if ch >= 56320 && ch <= 57343 { // low surrogate range
-				if count == 0 {
-					count++
-				} else {
-					// Insert low surrogate
-					buffer[count] = ch
-					count--
-					// Insert high surrogate
-					buffer[count] = rune(55296 + random.Intn(128))
-				}
-			} else if ch >= 55296 && ch <= 56191 { // High surrogates range (Partial)
-				if count == 0 {
-					count++
-				} else {
-					// Insert low surrogate
-					buffer[count] = rune(56320 + random.Intn(128))
-					count--
-					// Insert high surrogate
-					buffer[count] = ch
-				}
-			} else if ch >= 56192 && ch <= 56319 {
-				// private high surrogate, skip it
-				count++
-			} else {
-				// not one of the surrogates*
-				buffer[count] = ch
-			}
-		} else {
-			count++
-		}
-	}
-	return string(buffer), nil
-}
diff --git a/vendor/github.com/aokoli/goutils/stringutils.go b/vendor/github.com/aokoli/goutils/stringutils.go
deleted file mode 100644
index 5037c451..00000000
--- a/vendor/github.com/aokoli/goutils/stringutils.go
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
-Copyright 2014 Alexander Okoli
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package goutils
-
-import (
-	"bytes"
-	"fmt"
-	"strings"
-	"unicode"
-)
-
-// Typically returned by functions where a searched item cannot be found
-const INDEX_NOT_FOUND = -1
-
-/*
-Abbreviate abbreviates a string using ellipses. This will turn  the string "Now is the time for all good men" into "Now is the time for..."
-
-Specifically, the algorithm is as follows:
-
-    - If str is less than maxWidth characters long, return it.
-    - Else abbreviate it to (str[0:maxWidth - 3] + "...").
-    - If maxWidth is less than 4, return an illegal argument error.
-    - In no case will it return a string of length greater than maxWidth.
-
-Parameters:
-    str -  the string to check
-    maxWidth - maximum length of result string, must be at least 4
-
-Returns:
-    string - abbreviated string
-    error - if the width is too small
-*/
-func Abbreviate(str string, maxWidth int) (string, error) {
-	return AbbreviateFull(str, 0, maxWidth)
-}
-
-/*
-AbbreviateFull abbreviates a string using ellipses. This will turn the string "Now is the time for all good men" into "...is the time for..."
-This function works like Abbreviate(string, int), but allows you to specify a "left edge" offset. Note that this left edge is not
-necessarily going to be the leftmost character in the result, or the first character following the ellipses, but it will appear
-somewhere in the result.
-In no case will it return a string of length greater than maxWidth.
-
-Parameters:
-    str - the string to check
-    offset - left edge of source string
-    maxWidth - maximum length of result string, must be at least 4
-
-Returns:
-    string - abbreviated string
-    error - if the width is too small
-*/
-func AbbreviateFull(str string, offset int, maxWidth int) (string, error) {
-	if str == "" {
-		return "", nil
-	}
-	if maxWidth < 4 {
-		err := fmt.Errorf("stringutils illegal argument: Minimum abbreviation width is 4")
-		return "", err
-	}
-	if len(str) <= maxWidth {
-		return str, nil
-	}
-	if offset > len(str) {
-		offset = len(str)
-	}
-	if len(str)-offset < (maxWidth - 3) { // 15 - 5 < 10 - 3 =  10 < 7
-		offset = len(str) - (maxWidth - 3)
-	}
-	abrevMarker := "..."
-	if offset <= 4 {
-		return str[0:maxWidth-3] + abrevMarker, nil // str.substring(0, maxWidth - 3) + abrevMarker;
-	}
-	if maxWidth < 7 {
-		err := fmt.Errorf("stringutils illegal argument: Minimum abbreviation width with offset is 7")
-		return "", err
-	}
-	if (offset + maxWidth - 3) < len(str) { // 5 + (10-3) < 15 = 12 < 15
-		abrevStr, _ := Abbreviate(str[offset:len(str)], (maxWidth - 3))
-		return abrevMarker + abrevStr, nil // abrevMarker + abbreviate(str.substring(offset), maxWidth - 3);
-	}
-	return abrevMarker + str[(len(str)-(maxWidth-3)):len(str)], nil // abrevMarker + str.substring(str.length() - (maxWidth - 3));
-}
-
-/*
-DeleteWhiteSpace deletes all whitespaces from a string as defined by unicode.IsSpace(rune).
-It returns the string without whitespaces.
-
-Parameter:
-    str - the string to delete whitespace from, may be nil
-
-Returns:
-    the string without whitespaces
-*/
-func DeleteWhiteSpace(str string) string {
-	if str == "" {
-		return str
-	}
-	sz := len(str)
-	var chs bytes.Buffer
-	count := 0
-	for i := 0; i < sz; i++ {
-		ch := rune(str[i])
-		if !unicode.IsSpace(ch) {
-			chs.WriteRune(ch)
-			count++
-		}
-	}
-	if count == sz {
-		return str
-	}
-	return chs.String()
-}
-
-/*
-IndexOfDifference compares two strings, and returns the index at which the strings begin to differ.
-
-Parameters:
-    str1 - the first string
-    str2 - the second string
-
-Returns:
-    the index where str1 and str2 begin to differ; -1 if they are equal
-*/
-func IndexOfDifference(str1 string, str2 string) int {
-	if str1 == str2 {
-		return INDEX_NOT_FOUND
-	}
-	if IsEmpty(str1) || IsEmpty(str2) {
-		return 0
-	}
-	var i int
-	for i = 0; i < len(str1) && i < len(str2); i++ {
-		if rune(str1[i]) != rune(str2[i]) {
-			break
-		}
-	}
-	if i < len(str2) || i < len(str1) {
-		return i
-	}
-	return INDEX_NOT_FOUND
-}
-
-/*
-IsBlank checks if a string is whitespace or empty (""). Observe the following behavior:
-
-    goutils.IsBlank("")        = true
-    goutils.IsBlank(" ")       = true
-    goutils.IsBlank("bob")     = false
-    goutils.IsBlank("  bob  ") = false
-
-Parameter:
-    str - the string to check
-
-Returns:
-    true - if the string is whitespace or empty ("")
-*/
-func IsBlank(str string) bool {
-	strLen := len(str)
-	if str == "" || strLen == 0 {
-		return true
-	}
-	for i := 0; i < strLen; i++ {
-		if unicode.IsSpace(rune(str[i])) == false {
-			return false
-		}
-	}
-	return true
-}
-
-/*
-IndexOf returns the index of the first instance of sub in str, with the search beginning from the
-index start point specified. -1 is returned if sub is not present in str.
-
-An empty string ("") will return -1 (INDEX_NOT_FOUND). A negative start position is treated as zero.
-A start position greater than the string length returns -1.
-
-Parameters:
-    str - the string to check
-    sub - the substring to find
-    start - the start position; negative treated as zero
-
-Returns:
-    the first index where the sub string was found  (always >= start)
-*/
-func IndexOf(str string, sub string, start int) int {
-
-	if start < 0 {
-		start = 0
-	}
-
-	if len(str) < start {
-		return INDEX_NOT_FOUND
-	}
-
-	if IsEmpty(str) || IsEmpty(sub) {
-		return INDEX_NOT_FOUND
-	}
-
-	partialIndex := strings.Index(str[start:len(str)], sub)
-	if partialIndex == -1 {
-		return INDEX_NOT_FOUND
-	}
-	return partialIndex + start
-}
-
-// IsEmpty checks if a string is empty (""). Returns true if empty, and false otherwise.
-func IsEmpty(str string) bool {
-	return len(str) == 0
-}
diff --git a/vendor/github.com/aokoli/goutils/wordutils.go b/vendor/github.com/aokoli/goutils/wordutils.go
deleted file mode 100644
index e92dd399..00000000
--- a/vendor/github.com/aokoli/goutils/wordutils.go
+++ /dev/null
@@ -1,356 +0,0 @@
-/*
-Copyright 2014 Alexander Okoli
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-/*
-Package goutils provides utility functions to manipulate strings in various ways.
-The code snippets below show examples of how to use goutils. Some functions return
-errors while others do not, so usage would vary as a result.
-
-Example:
-
-    package main
-
-    import (
-        "fmt"
-        "github.com/aokoli/goutils"
-    )
-
-    func main() {
-
-        // EXAMPLE 1: A goutils function which returns no errors
-        fmt.Println (goutils.Initials("John Doe Foo")) // Prints out "JDF"
-
-
-
-        // EXAMPLE 2: A goutils function which returns an error
-        rand1, err1 := goutils.Random (-1, 0, 0, true, true)
-
-        if err1 != nil {
-            fmt.Println(err1) // Prints out error message because -1 was entered as the first parameter in goutils.Random(...)
-        } else {
-            fmt.Println(rand1)
-        }
-    }
-*/
-package goutils
-
-import (
-	"bytes"
-	"strings"
-	"unicode"
-)
-
-// VERSION indicates the current version of goutils
-const VERSION = "1.0.0"
-
-/*
-Wrap wraps a single line of text, identifying words by ' '.
-New lines will be separated by '\n'. Very long words, such as URLs will not be wrapped.
-Leading spaces on a new line are stripped. Trailing spaces are not stripped.
-
-Parameters:
-    str - the string to be word wrapped
-    wrapLength - the column (a column can fit only one character) to wrap the words at, less than 1 is treated as 1
-
-Returns:
-    a line with newlines inserted
-*/
-func Wrap(str string, wrapLength int) string {
-	return WrapCustom(str, wrapLength, "", false)
-}
-
-/*
-WrapCustom wraps a single line of text, identifying words by ' '.
-Leading spaces on a new line are stripped. Trailing spaces are not stripped.
-
-Parameters:
-    str - the string to be word wrapped
-    wrapLength - the column number (a column can fit only one character) to wrap the words at, less than 1 is treated as 1
-    newLineStr - the string to insert for a new line, "" uses '\n'
-    wrapLongWords - true if long words (such as URLs) should be wrapped
-
-Returns:
-    a line with newlines inserted
-*/
-func WrapCustom(str string, wrapLength int, newLineStr string, wrapLongWords bool) string {
-
-	if str == "" {
-		return ""
-	}
-	if newLineStr == "" {
-		newLineStr = "\n" // TODO Assumes "\n" is seperator. Explore SystemUtils.LINE_SEPARATOR from Apache Commons
-	}
-	if wrapLength < 1 {
-		wrapLength = 1
-	}
-
-	inputLineLength := len(str)
-	offset := 0
-
-	var wrappedLine bytes.Buffer
-
-	for inputLineLength-offset > wrapLength {
-
-		if rune(str[offset]) == ' ' {
-			offset++
-			continue
-		}
-
-		end := wrapLength + offset + 1
-		spaceToWrapAt := strings.LastIndex(str[offset:end], " ") + offset
-
-		if spaceToWrapAt >= offset {
-			// normal word (not longer than wrapLength)
-			wrappedLine.WriteString(str[offset:spaceToWrapAt])
-			wrappedLine.WriteString(newLineStr)
-			offset = spaceToWrapAt + 1
-
-		} else {
-			// long word or URL
-			if wrapLongWords {
-				end := wrapLength + offset
-				// long words are wrapped one line at a time
-				wrappedLine.WriteString(str[offset:end])
-				wrappedLine.WriteString(newLineStr)
-				offset += wrapLength
-			} else {
-				// long words aren't wrapped, just extended beyond limit
-				end := wrapLength + offset
-				spaceToWrapAt = strings.IndexRune(str[end:len(str)], ' ') + end
-				if spaceToWrapAt >= 0 {
-					wrappedLine.WriteString(str[offset:spaceToWrapAt])
-					wrappedLine.WriteString(newLineStr)
-					offset = spaceToWrapAt + 1
-				} else {
-					wrappedLine.WriteString(str[offset:len(str)])
-					offset = inputLineLength
-				}
-			}
-		}
-	}
-
-	wrappedLine.WriteString(str[offset:len(str)])
-
-	return wrappedLine.String()
-
-}
-
-/*
-Capitalize capitalizes all the delimiter separated words in a string. Only the first letter of each word is changed.
-To convert the rest of each word to lowercase at the same time, use CapitalizeFully(str string, delimiters ...rune).
-The delimiters represent a set of characters understood to separate words. The first string character
-and the first non-delimiter character after a delimiter will be capitalized. A "" input string returns "".
-Capitalization uses the Unicode title case, normally equivalent to upper case.
-
-Parameters:
-    str - the string to capitalize
-    delimiters - set of characters to determine capitalization, exclusion of this parameter means whitespace would be delimeter
-
-Returns:
-    capitalized string
-*/
-func Capitalize(str string, delimiters ...rune) string {
-
-	var delimLen int
-
-	if delimiters == nil {
-		delimLen = -1
-	} else {
-		delimLen = len(delimiters)
-	}
-
-	if str == "" || delimLen == 0 {
-		return str
-	}
-
-	buffer := []rune(str)
-	capitalizeNext := true
-	for i := 0; i < len(buffer); i++ {
-		ch := buffer[i]
-		if isDelimiter(ch, delimiters...) {
-			capitalizeNext = true
-		} else if capitalizeNext {
-			buffer[i] = unicode.ToTitle(ch)
-			capitalizeNext = false
-		}
-	}
-	return string(buffer)
-
-}
-
-/*
-CapitalizeFully converts all the delimiter separated words in a string into capitalized words, that is each word is made up of a
-titlecase character and then a series of lowercase characters. The delimiters represent a set of characters understood
-to separate words. The first string character and the first non-delimiter character after a delimiter will be capitalized.
-Capitalization uses the Unicode title case, normally equivalent to upper case.
-
-Parameters:
-    str - the string to capitalize fully
-    delimiters - set of characters to determine capitalization, exclusion of this parameter means whitespace would be delimeter
-
-Returns:
-    capitalized string
-*/
-func CapitalizeFully(str string, delimiters ...rune) string {
-
-	var delimLen int
-
-	if delimiters == nil {
-		delimLen = -1
-	} else {
-		delimLen = len(delimiters)
-	}
-
-	if str == "" || delimLen == 0 {
-		return str
-	}
-	str = strings.ToLower(str)
-	return Capitalize(str, delimiters...)
-}
-
-/*
-Uncapitalize uncapitalizes all the whitespace separated words in a string. Only the first letter of each word is changed.
-The delimiters represent a set of characters understood to separate words. The first string character and the first non-delimiter
-character after a delimiter will be uncapitalized. Whitespace is defined by unicode.IsSpace(char).
-
-Parameters:
-    str - the string to uncapitalize fully
-    delimiters - set of characters to determine capitalization, exclusion of this parameter means whitespace would be delimeter
-
-Returns:
-    uncapitalized string
-*/
-func Uncapitalize(str string, delimiters ...rune) string {
-
-	var delimLen int
-
-	if delimiters == nil {
-		delimLen = -1
-	} else {
-		delimLen = len(delimiters)
-	}
-
-	if str == "" || delimLen == 0 {
-		return str
-	}
-
-	buffer := []rune(str)
-	uncapitalizeNext := true // TODO Always makes capitalize/un apply to first char.
-	for i := 0; i < len(buffer); i++ {
-		ch := buffer[i]
-		if isDelimiter(ch, delimiters...) {
-			uncapitalizeNext = true
-		} else if uncapitalizeNext {
-			buffer[i] = unicode.ToLower(ch)
-			uncapitalizeNext = false
-		}
-	}
-	return string(buffer)
-}
-
-/*
-SwapCase swaps the case of a string using a word based algorithm.
-
-Conversion algorithm:
-
-    Upper case character converts to Lower case
-    Title case character converts to Lower case
-    Lower case character after Whitespace or at start converts to Title case
-    Other Lower case character converts to Upper case
-    Whitespace is defined by unicode.IsSpace(char).
-
-Parameters:
-    str - the string to swap case
-
-Returns:
-    the changed string
-*/
-func SwapCase(str string) string {
-	if str == "" {
-		return str
-	}
-	buffer := []rune(str)
-
-	whitespace := true
-
-	for i := 0; i < len(buffer); i++ {
-		ch := buffer[i]
-		if unicode.IsUpper(ch) {
-			buffer[i] = unicode.ToLower(ch)
-			whitespace = false
-		} else if unicode.IsTitle(ch) {
-			buffer[i] = unicode.ToLower(ch)
-			whitespace = false
-		} else if unicode.IsLower(ch) {
-			if whitespace {
-				buffer[i] = unicode.ToTitle(ch)
-				whitespace = false
-			} else {
-				buffer[i] = unicode.ToUpper(ch)
-			}
-		} else {
-			whitespace = unicode.IsSpace(ch)
-		}
-	}
-	return string(buffer)
-}
-
-/*
-Initials extracts the initial letters from each word in the string. The first letter of the string and all first
-letters after the defined delimiters are returned as a new string. Their case is not changed. If the delimiters
-parameter is excluded, then Whitespace is used. Whitespace is defined by unicode.IsSpacea(char). An empty delimiter array returns an empty string.
-
-Parameters:
-    str - the string to get initials from
-    delimiters - set of characters to determine words, exclusion of this parameter means whitespace would be delimeter
-Returns:
-    string of initial letters
-*/
-func Initials(str string, delimiters ...rune) string {
-	if str == "" {
-		return str
-	}
-	if delimiters != nil && len(delimiters) == 0 {
-		return ""
-	}
-	strLen := len(str)
-	var buf bytes.Buffer
-	lastWasGap := true
-	for i := 0; i < strLen; i++ {
-		ch := rune(str[i])
-
-		if isDelimiter(ch, delimiters...) {
-			lastWasGap = true
-		} else if lastWasGap {
-			buf.WriteRune(ch)
-			lastWasGap = false
-		}
-	}
-	return buf.String()
-}
-
-// private function (lower case func name)
-func isDelimiter(ch rune, delimiters ...rune) bool {
-	if delimiters == nil {
-		return unicode.IsSpace(ch)
-	}
-	for _, delimiter := range delimiters {
-		if ch == delimiter {
-			return true
-		}
-	}
-	return false
-}
diff --git a/vendor/github.com/golang/glog/README b/vendor/github.com/golang/glog/README
deleted file mode 100644
index 387b4eb6..00000000
--- a/vendor/github.com/golang/glog/README
+++ /dev/null
@@ -1,44 +0,0 @@
-glog
-====
-
-Leveled execution logs for Go.
-
-This is an efficient pure Go implementation of leveled logs in the
-manner of the open source C++ package
-	https://github.com/google/glog
-
-By binding methods to booleans it is possible to use the log package
-without paying the expense of evaluating the arguments to the log.
-Through the -vmodule flag, the package also provides fine-grained
-control over logging at the file level.
-
-The comment from glog.go introduces the ideas:
-
-	Package glog implements logging analogous to the Google-internal
-	C++ INFO/ERROR/V setup.  It provides functions Info, Warning,
-	Error, Fatal, plus formatting variants such as Infof. It
-	also provides V-style logging controlled by the -v and
-	-vmodule=file=2 flags.
-	
-	Basic examples:
-	
-		glog.Info("Prepare to repel boarders")
-	
-		glog.Fatalf("Initialization failed: %s", err)
-	
-	See the documentation for the V function for an explanation
-	of these examples:
-	
-		if glog.V(2) {
-			glog.Info("Starting transaction...")
-		}
-	
-		glog.V(2).Infoln("Processed", nItems, "elements")
-
-
-The repository contains an open source version of the log package
-used inside Google. The master copy of the source lives inside
-Google, not here. The code in this repo is for export only and is not itself
-under development. Feature requests will be ignored.
-
-Send bug reports to golang-nuts@googlegroups.com.
diff --git a/vendor/github.com/golang/glog/glog.go b/vendor/github.com/golang/glog/glog.go
index 54bd7afd..8c00e737 100644
--- a/vendor/github.com/golang/glog/glog.go
+++ b/vendor/github.com/golang/glog/glog.go
@@ -1,6 +1,6 @@
-// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
+// Go support for leveled logs, analogous to https://github.com/google/glog.
 //
-// Copyright 2013 Google Inc. All Rights Reserved.
+// Copyright 2023 Google Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -15,8 +15,26 @@
 // limitations under the License.
 
 // Package glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
-// It provides functions Info, Warning, Error, Fatal, plus formatting variants such as
-// Infof. It also provides V-style logging controlled by the -v and -vmodule=file=2 flags.
+// It provides functions that have a name matched by regex:
+//
+//	(Info|Warning|Error|Fatal)(Context)?(Depth)?(f)?
+//
+// If Context is present, function takes context.Context argument. The
+// context is used to pass through the Trace Context to log sinks that can make use
+// of it.
+// It is recommended to use the context variant of the functions over the non-context
+// variants if a context is available to make sure the Trace Contexts are present
+// in logs.
+//
+// If Depth is present, this function calls log from a different depth in the call stack.
+// This enables a callee to emit logs that use the callsite information of its caller
+// or any other callers in the stack. When depth == 0, the original callee's line
+// information is emitted. When depth > 0, depth frames are skipped in the call stack
+// and the final frame is treated like the original callee to Info.
+//
+// If 'f' is present, function formats according to a format specifier.
+//
+// This package also provides V-style logging controlled by the -v and -vmodule=file=2 flags.
 //
 // Basic examples:
 //
@@ -50,15 +68,15 @@
 //		Log files will be written to this directory instead of the
 //		default temporary directory.
 //
-//	Other flags provide aids to debugging.
+// Other flags provide aids to debugging.
 //
 //	-log_backtrace_at=""
-//		When set to a file and line number holding a logging statement,
-//		such as
+//		A comma-separated list of file and line numbers holding a logging
+//		statement, such as
 //			-log_backtrace_at=gopherflakes.go:234
-//		a stack trace will be written to the Info log whenever execution
-//		hits that statement. (Unlike with -vmodule, the ".go" must be
-//		present.)
+//		A stack trace will be written to the Info log whenever execution
+//		hits one of these statements. (Unlike with -vmodule, the ".go"
+//		must bepresent.)
 //	-v=0
 //		Enable V-leveled logging at the specified level.
 //	-vmodule=""
@@ -66,100 +84,47 @@
 //		where pattern is a literal file name (minus the ".go" suffix) or
 //		"glob" pattern and N is a V level. For instance,
 //			-vmodule=gopher*=3
-//		sets the V level to 3 in all Go files whose names begin "gopher".
-//
+//		sets the V level to 3 in all Go files whose names begin with "gopher",
+//		and
+//			-vmodule=/path/to/glog/glog_test=1
+//		sets the V level to 1 in the Go file /path/to/glog/glog_test.go.
+//		If a glob pattern contains a slash, it is matched against the full path,
+//		and the file name. Otherwise, the pattern is
+//		matched only against the file's basename.  When both -vmodule and -v
+//		are specified, the -vmodule values take precedence for the specified
+//		modules.
 package glog
 
+// This file contains the parts of the log package that are shared among all
+// implementations (file, envelope, and appengine).
+
 import (
-	"bufio"
 	"bytes"
+	"context"
 	"errors"
-	"flag"
 	"fmt"
-	"io"
 	stdLog "log"
 	"os"
-	"path/filepath"
+	"reflect"
 	"runtime"
+	"runtime/pprof"
 	"strconv"
-	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
-)
-
-// severity identifies the sort of log: info, warning etc. It also implements
-// the flag.Value interface. The -stderrthreshold flag is of type severity and
-// should be modified only through the flag.Value interface. The values match
-// the corresponding constants in C++.
-type severity int32 // sync/atomic int32
 
-// These constants identify the log levels in order of increasing severity.
-// A message written to a high-severity log file is also written to each
-// lower-severity log file.
-const (
-	infoLog severity = iota
-	warningLog
-	errorLog
-	fatalLog
-	numSeverity = 4
+	"github.com/golang/glog/internal/logsink"
+	"github.com/golang/glog/internal/stackdump"
 )
 
-const severityChar = "IWEF"
-
-var severityName = []string{
-	infoLog:    "INFO",
-	warningLog: "WARNING",
-	errorLog:   "ERROR",
-	fatalLog:   "FATAL",
-}
-
-// get returns the value of the severity.
-func (s *severity) get() severity {
-	return severity(atomic.LoadInt32((*int32)(s)))
-}
-
-// set sets the value of the severity.
-func (s *severity) set(val severity) {
-	atomic.StoreInt32((*int32)(s), int32(val))
-}
-
-// String is part of the flag.Value interface.
-func (s *severity) String() string {
-	return strconv.FormatInt(int64(*s), 10)
-}
+var timeNow = time.Now // Stubbed out for testing.
 
-// Get is part of the flag.Value interface.
-func (s *severity) Get() interface{} {
-	return *s
-}
+// MaxSize is the maximum size of a log file in bytes.
+var MaxSize uint64 = 1024 * 1024 * 1800
 
-// Set is part of the flag.Value interface.
-func (s *severity) Set(value string) error {
-	var threshold severity
-	// Is it a known name?
-	if v, ok := severityByName(value); ok {
-		threshold = v
-	} else {
-		v, err := strconv.Atoi(value)
-		if err != nil {
-			return err
-		}
-		threshold = severity(v)
-	}
-	logging.stderrThreshold.set(threshold)
-	return nil
-}
-
-func severityByName(s string) (severity, bool) {
-	s = strings.ToUpper(s)
-	for i, name := range severityName {
-		if name == s {
-			return severity(i), true
-		}
-	}
-	return 0, false
-}
+// ErrNoLog is the error we return if no log file has yet been created
+// for the specified log type.
+var ErrNoLog = errors.New("log file not yet created")
 
 // OutputStats tracks the number of output lines and bytes written.
 type OutputStats struct {
@@ -183,724 +148,108 @@ var Stats struct {
 	Info, Warning, Error OutputStats
 }
 
-var severityStats = [numSeverity]*OutputStats{
-	infoLog:    &Stats.Info,
-	warningLog: &Stats.Warning,
-	errorLog:   &Stats.Error,
+var severityStats = [...]*OutputStats{
+	logsink.Info:    &Stats.Info,
+	logsink.Warning: &Stats.Warning,
+	logsink.Error:   &Stats.Error,
+	logsink.Fatal:   nil,
 }
 
-// Level is exported because it appears in the arguments to V and is
-// the type of the v flag, which can be set programmatically.
-// It's a distinct type because we want to discriminate it from logType.
-// Variables of type level are only changed under logging.mu.
-// The -v flag is read only with atomic ops, so the state of the logging
-// module is consistent.
-
-// Level is treated as a sync/atomic int32.
-
-// Level specifies a level of verbosity for V logs. *Level implements
-// flag.Value; the -v flag is of type Level and should be modified
-// only through the flag.Value interface.
+// Level specifies a level of verbosity for V logs.  The -v flag is of type
+// Level and should be modified only through the flag.Value interface.
 type Level int32
 
-// get returns the value of the Level.
-func (l *Level) get() Level {
-	return Level(atomic.LoadInt32((*int32)(l)))
-}
-
-// set sets the value of the Level.
-func (l *Level) set(val Level) {
-	atomic.StoreInt32((*int32)(l), int32(val))
-}
-
-// String is part of the flag.Value interface.
-func (l *Level) String() string {
-	return strconv.FormatInt(int64(*l), 10)
-}
-
-// Get is part of the flag.Value interface.
-func (l *Level) Get() interface{} {
-	return *l
-}
-
-// Set is part of the flag.Value interface.
-func (l *Level) Set(value string) error {
-	v, err := strconv.Atoi(value)
-	if err != nil {
-		return err
-	}
-	logging.mu.Lock()
-	defer logging.mu.Unlock()
-	logging.setVState(Level(v), logging.vmodule.filter, false)
-	return nil
-}
-
-// moduleSpec represents the setting of the -vmodule flag.
-type moduleSpec struct {
-	filter []modulePat
-}
-
-// modulePat contains a filter for the -vmodule flag.
-// It holds a verbosity level and a file pattern to match.
-type modulePat struct {
-	pattern string
-	literal bool // The pattern is a literal string
-	level   Level
-}
-
-// match reports whether the file matches the pattern. It uses a string
-// comparison if the pattern contains no metacharacters.
-func (m *modulePat) match(file string) bool {
-	if m.literal {
-		return file == m.pattern
-	}
-	match, _ := filepath.Match(m.pattern, file)
-	return match
-}
-
-func (m *moduleSpec) String() string {
-	// Lock because the type is not atomic. TODO: clean this up.
-	logging.mu.Lock()
-	defer logging.mu.Unlock()
-	var b bytes.Buffer
-	for i, f := range m.filter {
-		if i > 0 {
-			b.WriteRune(',')
-		}
-		fmt.Fprintf(&b, "%s=%d", f.pattern, f.level)
-	}
-	return b.String()
-}
-
-// Get is part of the (Go 1.2)  flag.Getter interface. It always returns nil for this flag type since the
-// struct is not exported.
-func (m *moduleSpec) Get() interface{} {
-	return nil
-}
-
-var errVmoduleSyntax = errors.New("syntax error: expect comma-separated list of filename=N")
+var metaPool sync.Pool // Pool of *logsink.Meta.
 
-// Syntax: -vmodule=recordio=2,file=1,gfs*=3
-func (m *moduleSpec) Set(value string) error {
-	var filter []modulePat
-	for _, pat := range strings.Split(value, ",") {
-		if len(pat) == 0 {
-			// Empty strings such as from a trailing comma can be ignored.
-			continue
-		}
-		patLev := strings.Split(pat, "=")
-		if len(patLev) != 2 || len(patLev[0]) == 0 || len(patLev[1]) == 0 {
-			return errVmoduleSyntax
-		}
-		pattern := patLev[0]
-		v, err := strconv.Atoi(patLev[1])
-		if err != nil {
-			return errors.New("syntax error: expect comma-separated list of filename=N")
-		}
-		if v < 0 {
-			return errors.New("negative value for vmodule level")
-		}
-		if v == 0 {
-			continue // Ignore. It's harmless but no point in paying the overhead.
-		}
-		// TODO: check syntax of filter?
-		filter = append(filter, modulePat{pattern, isLiteral(pattern), Level(v)})
+// metaPoolGet returns a *logsink.Meta from metaPool as both an interface and a
+// pointer, allocating a new one if necessary.  (Returning the interface value
+// directly avoids an allocation if there was an existing pointer in the pool.)
+func metaPoolGet() (any, *logsink.Meta) {
+	if metai := metaPool.Get(); metai != nil {
+		return metai, metai.(*logsink.Meta)
 	}
-	logging.mu.Lock()
-	defer logging.mu.Unlock()
-	logging.setVState(logging.verbosity, filter, true)
-	return nil
+	meta := new(logsink.Meta)
+	return meta, meta
 }
 
-// isLiteral reports whether the pattern is a literal string, that is, has no metacharacters
-// that require filepath.Match to be called to match the pattern.
-func isLiteral(pattern string) bool {
-	return !strings.ContainsAny(pattern, `\*?[]`)
-}
-
-// traceLocation represents the setting of the -log_backtrace_at flag.
-type traceLocation struct {
-	file string
-	line int
-}
-
-// isSet reports whether the trace location has been specified.
-// logging.mu is held.
-func (t *traceLocation) isSet() bool {
-	return t.line > 0
-}
+type stack bool
 
-// match reports whether the specified file and line matches the trace location.
-// The argument file name is the full path, not the basename specified in the flag.
-// logging.mu is held.
-func (t *traceLocation) match(file string, line int) bool {
-	if t.line != line {
-		return false
-	}
-	if i := strings.LastIndex(file, "/"); i >= 0 {
-		file = file[i+1:]
-	}
-	return t.file == file
-}
-
-func (t *traceLocation) String() string {
-	// Lock because the type is not atomic. TODO: clean this up.
-	logging.mu.Lock()
-	defer logging.mu.Unlock()
-	return fmt.Sprintf("%s:%d", t.file, t.line)
-}
+const (
+	noStack   = stack(false)
+	withStack = stack(true)
+)
 
-// Get is part of the (Go 1.2) flag.Getter interface. It always returns nil for this flag type since the
-// struct is not exported
-func (t *traceLocation) Get() interface{} {
-	return nil
-}
+func appendBacktrace(depth int, format string, args []any) (string, []any) {
+	// Capture a backtrace as a stackdump.Stack (both text and PC slice).
+	// Structured log sinks can extract the backtrace in whichever format they
+	// prefer (PCs or text), and Text sinks will include it as just another part
+	// of the log message.
+	//
+	// Use depth instead of depth+1 so that the backtrace always includes the
+	// log function itself - otherwise the reason for the trace appearing in the
+	// log may not be obvious to the reader.
+	dump := stackdump.Caller(depth)
 
-var errTraceSyntax = errors.New("syntax error: expect file.go:234")
+	// Add an arg and an entry in the format string for the stack dump.
+	//
+	// Copy the "args" slice to avoid a rare but serious aliasing bug
+	// (corrupting the caller's slice if they passed it to a non-Fatal call
+	// using "...").
+	format = format + "\n\n%v\n"
+	args = append(append([]any(nil), args...), dump)
 
-// Syntax: -log_backtrace_at=gopherflakes.go:234
-// Note that unlike vmodule the file extension is included here.
-func (t *traceLocation) Set(value string) error {
-	if value == "" {
-		// Unset.
-		t.line = 0
-		t.file = ""
-	}
-	fields := strings.Split(value, ":")
-	if len(fields) != 2 {
-		return errTraceSyntax
-	}
-	file, line := fields[0], fields[1]
-	if !strings.Contains(file, ".") {
-		return errTraceSyntax
-	}
-	v, err := strconv.Atoi(line)
-	if err != nil {
-		return errTraceSyntax
-	}
-	if v <= 0 {
-		return errors.New("negative or zero value for level")
-	}
-	logging.mu.Lock()
-	defer logging.mu.Unlock()
-	t.line = v
-	t.file = file
-	return nil
-}
-
-// flushSyncWriter is the interface satisfied by logging destinations.
-type flushSyncWriter interface {
-	Flush() error
-	Sync() error
-	io.Writer
-}
-
-func init() {
-	flag.BoolVar(&logging.toStderr, "logtostderr", false, "log to standard error instead of files")
-	flag.BoolVar(&logging.alsoToStderr, "alsologtostderr", false, "log to standard error as well as files")
-	flag.Var(&logging.verbosity, "v", "log level for V logs")
-	flag.Var(&logging.stderrThreshold, "stderrthreshold", "logs at or above this threshold go to stderr")
-	flag.Var(&logging.vmodule, "vmodule", "comma-separated list of pattern=N settings for file-filtered logging")
-	flag.Var(&logging.traceLocation, "log_backtrace_at", "when logging hits line file:N, emit a stack trace")
-
-	// Default stderrThreshold is ERROR.
-	logging.stderrThreshold = errorLog
-
-	logging.setVState(0, nil, false)
-	go logging.flushDaemon()
-}
-
-// Flush flushes all pending log I/O.
-func Flush() {
-	logging.lockAndFlushAll()
-}
-
-// loggingT collects all the global state of the logging setup.
-type loggingT struct {
-	// Boolean flags. Not handled atomically because the flag.Value interface
-	// does not let us avoid the =true, and that shorthand is necessary for
-	// compatibility. TODO: does this matter enough to fix? Seems unlikely.
-	toStderr     bool // The -logtostderr flag.
-	alsoToStderr bool // The -alsologtostderr flag.
-
-	// Level flag. Handled atomically.
-	stderrThreshold severity // The -stderrthreshold flag.
-
-	// freeList is a list of byte buffers, maintained under freeListMu.
-	freeList *buffer
-	// freeListMu maintains the free list. It is separate from the main mutex
-	// so buffers can be grabbed and printed to without holding the main lock,
-	// for better parallelization.
-	freeListMu sync.Mutex
-
-	// mu protects the remaining elements of this structure and is
-	// used to synchronize logging.
-	mu sync.Mutex
-	// file holds writer for each of the log types.
-	file [numSeverity]flushSyncWriter
-	// pcs is used in V to avoid an allocation when computing the caller's PC.
-	pcs [1]uintptr
-	// vmap is a cache of the V Level for each V() call site, identified by PC.
-	// It is wiped whenever the vmodule flag changes state.
-	vmap map[uintptr]Level
-	// filterLength stores the length of the vmodule filter chain. If greater
-	// than zero, it means vmodule is enabled. It may be read safely
-	// using sync.LoadInt32, but is only modified under mu.
-	filterLength int32
-	// traceLocation is the state of the -log_backtrace_at flag.
-	traceLocation traceLocation
-	// These flags are modified only under lock, although verbosity may be fetched
-	// safely using atomic.LoadInt32.
-	vmodule   moduleSpec // The state of the -vmodule flag.
-	verbosity Level      // V logging level, the value of the -v flag/
-}
-
-// buffer holds a byte Buffer for reuse. The zero value is ready for use.
-type buffer struct {
-	bytes.Buffer
-	tmp  [64]byte // temporary byte array for creating headers.
-	next *buffer
-}
-
-var logging loggingT
-
-// setVState sets a consistent state for V logging.
-// l.mu is held.
-func (l *loggingT) setVState(verbosity Level, filter []modulePat, setFilter bool) {
-	// Turn verbosity off so V will not fire while we are in transition.
-	logging.verbosity.set(0)
-	// Ditto for filter length.
-	atomic.StoreInt32(&logging.filterLength, 0)
-
-	// Set the new filters and wipe the pc->Level map if the filter has changed.
-	if setFilter {
-		logging.vmodule.filter = filter
-		logging.vmap = make(map[uintptr]Level)
-	}
-
-	// Things are consistent now, so enable filtering and verbosity.
-	// They are enabled in order opposite to that in V.
-	atomic.StoreInt32(&logging.filterLength, int32(len(filter)))
-	logging.verbosity.set(verbosity)
-}
-
-// getBuffer returns a new, ready-to-use buffer.
-func (l *loggingT) getBuffer() *buffer {
-	l.freeListMu.Lock()
-	b := l.freeList
-	if b != nil {
-		l.freeList = b.next
-	}
-	l.freeListMu.Unlock()
-	if b == nil {
-		b = new(buffer)
-	} else {
-		b.next = nil
-		b.Reset()
-	}
-	return b
+	return format, args
 }
 
-// putBuffer returns a buffer to the free list.
-func (l *loggingT) putBuffer(b *buffer) {
-	if b.Len() >= 256 {
-		// Let big buffers die a natural death.
-		return
-	}
-	l.freeListMu.Lock()
-	b.next = l.freeList
-	l.freeList = b
-	l.freeListMu.Unlock()
+// logf acts as ctxlogf, but doesn't expect a context.
+func logf(depth int, severity logsink.Severity, verbose bool, stack stack, format string, args ...any) {
+	ctxlogf(nil, depth+1, severity, verbose, stack, format, args...)
 }
 
-var timeNow = time.Now // Stubbed out for testing.
-
-/*
-header formats a log header as defined by the C++ implementation.
-It returns a buffer containing the formatted header and the user's file and line number.
-The depth specifies how many stack frames above lives the source line to be identified in the log message.
-
-Log lines have this form:
-	Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg...
-where the fields are defined as follows:
-	L                A single character, representing the log level (eg 'I' for INFO)
-	mm               The month (zero padded; ie May is '05')
-	dd               The day (zero padded)
-	hh:mm:ss.uuuuuu  Time in hours, minutes and fractional seconds
-	threadid         The space-padded thread ID as returned by GetTID()
-	file             The file name
-	line             The line number
-	msg              The user-supplied message
-*/
-func (l *loggingT) header(s severity, depth int) (*buffer, string, int) {
-	_, file, line, ok := runtime.Caller(3 + depth)
+// ctxlogf writes a log message for a log function call (or log function wrapper)
+// at the given depth in the current goroutine's stack.
+func ctxlogf(ctx context.Context, depth int, severity logsink.Severity, verbose bool, stack stack, format string, args ...any) {
+	now := timeNow()
+	_, file, line, ok := runtime.Caller(depth + 1)
 	if !ok {
 		file = "???"
 		line = 1
-	} else {
-		slash := strings.LastIndex(file, "/")
-		if slash >= 0 {
-			file = file[slash+1:]
-		}
 	}
-	return l.formatHeader(s, file, line), file, line
-}
 
-// formatHeader formats a log header using the provided file name and line number.
-func (l *loggingT) formatHeader(s severity, file string, line int) *buffer {
-	now := timeNow()
-	if line < 0 {
-		line = 0 // not a real line number, but acceptable to someDigits
+	if stack == withStack || backtraceAt(file, line) {
+		format, args = appendBacktrace(depth+1, format, args)
 	}
-	if s > fatalLog {
-		s = infoLog // for safety.
-	}
-	buf := l.getBuffer()
-
-	// Avoid Fprintf, for speed. The format is so simple that we can do it quickly by hand.
-	// It's worth about 3X. Fprintf is hard.
-	_, month, day := now.Date()
-	hour, minute, second := now.Clock()
-	// Lmmdd hh:mm:ss.uuuuuu threadid file:line]
-	buf.tmp[0] = severityChar[s]
-	buf.twoDigits(1, int(month))
-	buf.twoDigits(3, day)
-	buf.tmp[5] = ' '
-	buf.twoDigits(6, hour)
-	buf.tmp[8] = ':'
-	buf.twoDigits(9, minute)
-	buf.tmp[11] = ':'
-	buf.twoDigits(12, second)
-	buf.tmp[14] = '.'
-	buf.nDigits(6, 15, now.Nanosecond()/1000, '0')
-	buf.tmp[21] = ' '
-	buf.nDigits(7, 22, pid, ' ') // TODO: should be TID
-	buf.tmp[29] = ' '
-	buf.Write(buf.tmp[:30])
-	buf.WriteString(file)
-	buf.tmp[0] = ':'
-	n := buf.someDigits(1, line)
-	buf.tmp[n+1] = ']'
-	buf.tmp[n+2] = ' '
-	buf.Write(buf.tmp[:n+3])
-	return buf
-}
-
-// Some custom tiny helper functions to print the log header efficiently.
-
-const digits = "0123456789"
-
-// twoDigits formats a zero-prefixed two-digit integer at buf.tmp[i].
-func (buf *buffer) twoDigits(i, d int) {
-	buf.tmp[i+1] = digits[d%10]
-	d /= 10
-	buf.tmp[i] = digits[d%10]
-}
-
-// nDigits formats an n-digit integer at buf.tmp[i],
-// padding with pad on the left.
-// It assumes d >= 0.
-func (buf *buffer) nDigits(n, i, d int, pad byte) {
-	j := n - 1
-	for ; j >= 0 && d > 0; j-- {
-		buf.tmp[i+j] = digits[d%10]
-		d /= 10
-	}
-	for ; j >= 0; j-- {
-		buf.tmp[i+j] = pad
-	}
-}
 
-// someDigits formats a zero-prefixed variable-width integer at buf.tmp[i].
-func (buf *buffer) someDigits(i, d int) int {
-	// Print into the top, then copy down. We know there's space for at least
-	// a 10-digit number.
-	j := len(buf.tmp)
-	for {
-		j--
-		buf.tmp[j] = digits[d%10]
-		d /= 10
-		if d == 0 {
-			break
-		}
+	metai, meta := metaPoolGet()
+	*meta = logsink.Meta{
+		Context:  ctx,
+		Time:     now,
+		File:     file,
+		Line:     line,
+		Depth:    depth + 1,
+		Severity: severity,
+		Verbose:  verbose,
+		Thread:   int64(pid),
 	}
-	return copy(buf.tmp[i:], buf.tmp[j:])
-}
-
-func (l *loggingT) println(s severity, args ...interface{}) {
-	buf, file, line := l.header(s, 0)
-	fmt.Fprintln(buf, args...)
-	l.output(s, buf, file, line, false)
+	sinkf(meta, format, args...)
+	// Clear pointer fields so they can be garbage collected early.
+	meta.Context = nil
+	meta.Stack = nil
+	metaPool.Put(metai)
 }
 
-func (l *loggingT) print(s severity, args ...interface{}) {
-	l.printDepth(s, 1, args...)
-}
-
-func (l *loggingT) printDepth(s severity, depth int, args ...interface{}) {
-	buf, file, line := l.header(s, depth)
-	fmt.Fprint(buf, args...)
-	if buf.Bytes()[buf.Len()-1] != '\n' {
-		buf.WriteByte('\n')
-	}
-	l.output(s, buf, file, line, false)
-}
-
-func (l *loggingT) printf(s severity, format string, args ...interface{}) {
-	buf, file, line := l.header(s, 0)
-	fmt.Fprintf(buf, format, args...)
-	if buf.Bytes()[buf.Len()-1] != '\n' {
-		buf.WriteByte('\n')
-	}
-	l.output(s, buf, file, line, false)
-}
-
-// printWithFileLine behaves like print but uses the provided file and line number.  If
-// alsoLogToStderr is true, the log message always appears on standard error; it
-// will also appear in the log file unless --logtostderr is set.
-func (l *loggingT) printWithFileLine(s severity, file string, line int, alsoToStderr bool, args ...interface{}) {
-	buf := l.formatHeader(s, file, line)
-	fmt.Fprint(buf, args...)
-	if buf.Bytes()[buf.Len()-1] != '\n' {
-		buf.WriteByte('\n')
-	}
-	l.output(s, buf, file, line, alsoToStderr)
-}
-
-// output writes the data to the log files and releases the buffer.
-func (l *loggingT) output(s severity, buf *buffer, file string, line int, alsoToStderr bool) {
-	l.mu.Lock()
-	if l.traceLocation.isSet() {
-		if l.traceLocation.match(file, line) {
-			buf.Write(stacks(false))
-		}
-	}
-	data := buf.Bytes()
-	if !flag.Parsed() {
-		os.Stderr.Write([]byte("ERROR: logging before flag.Parse: "))
-		os.Stderr.Write(data)
-	} else if l.toStderr {
-		os.Stderr.Write(data)
-	} else {
-		if alsoToStderr || l.alsoToStderr || s >= l.stderrThreshold.get() {
-			os.Stderr.Write(data)
-		}
-		if l.file[s] == nil {
-			if err := l.createFiles(s); err != nil {
-				os.Stderr.Write(data) // Make sure the message appears somewhere.
-				l.exit(err)
-			}
-		}
-		switch s {
-		case fatalLog:
-			l.file[fatalLog].Write(data)
-			fallthrough
-		case errorLog:
-			l.file[errorLog].Write(data)
-			fallthrough
-		case warningLog:
-			l.file[warningLog].Write(data)
-			fallthrough
-		case infoLog:
-			l.file[infoLog].Write(data)
-		}
-	}
-	if s == fatalLog {
-		// If we got here via Exit rather than Fatal, print no stacks.
-		if atomic.LoadUint32(&fatalNoStacks) > 0 {
-			l.mu.Unlock()
-			timeoutFlush(10 * time.Second)
-			os.Exit(1)
-		}
-		// Dump all goroutine stacks before exiting.
-		// First, make sure we see the trace for the current goroutine on standard error.
-		// If -logtostderr has been specified, the loop below will do that anyway
-		// as the first stack in the full dump.
-		if !l.toStderr {
-			os.Stderr.Write(stacks(false))
-		}
-		// Write the stack trace for all goroutines to the files.
-		trace := stacks(true)
-		logExitFunc = func(error) {} // If we get a write error, we'll still exit below.
-		for log := fatalLog; log >= infoLog; log-- {
-			if f := l.file[log]; f != nil { // Can be nil if -logtostderr is set.
-				f.Write(trace)
-			}
-		}
-		l.mu.Unlock()
-		timeoutFlush(10 * time.Second)
-		os.Exit(255) // C++ uses -1, which is silly because it's anded with 255 anyway.
-	}
-	l.putBuffer(buf)
-	l.mu.Unlock()
-	if stats := severityStats[s]; stats != nil {
+func sinkf(meta *logsink.Meta, format string, args ...any) {
+	meta.Depth++
+	n, err := logsink.Printf(meta, format, args...)
+	if stats := severityStats[meta.Severity]; stats != nil {
 		atomic.AddInt64(&stats.lines, 1)
-		atomic.AddInt64(&stats.bytes, int64(len(data)))
-	}
-}
-
-// timeoutFlush calls Flush and returns when it completes or after timeout
-// elapses, whichever happens first.  This is needed because the hooks invoked
-// by Flush may deadlock when glog.Fatal is called from a hook that holds
-// a lock.
-func timeoutFlush(timeout time.Duration) {
-	done := make(chan bool, 1)
-	go func() {
-		Flush() // calls logging.lockAndFlushAll()
-		done <- true
-	}()
-	select {
-	case <-done:
-	case <-time.After(timeout):
-		fmt.Fprintln(os.Stderr, "glog: Flush took longer than", timeout)
-	}
-}
-
-// stacks is a wrapper for runtime.Stack that attempts to recover the data for all goroutines.
-func stacks(all bool) []byte {
-	// We don't know how big the traces are, so grow a few times if they don't fit. Start large, though.
-	n := 10000
-	if all {
-		n = 100000
-	}
-	var trace []byte
-	for i := 0; i < 5; i++ {
-		trace = make([]byte, n)
-		nbytes := runtime.Stack(trace, all)
-		if nbytes < len(trace) {
-			return trace[:nbytes]
-		}
-		n *= 2
-	}
-	return trace
-}
-
-// logExitFunc provides a simple mechanism to override the default behavior
-// of exiting on error. Used in testing and to guarantee we reach a required exit
-// for fatal logs. Instead, exit could be a function rather than a method but that
-// would make its use clumsier.
-var logExitFunc func(error)
-
-// exit is called if there is trouble creating or writing log files.
-// It flushes the logs and exits the program; there's no point in hanging around.
-// l.mu is held.
-func (l *loggingT) exit(err error) {
-	fmt.Fprintf(os.Stderr, "log: exiting because of error: %s\n", err)
-	// If logExitFunc is set, we do that instead of exiting.
-	if logExitFunc != nil {
-		logExitFunc(err)
-		return
-	}
-	l.flushAll()
-	os.Exit(2)
-}
-
-// syncBuffer joins a bufio.Writer to its underlying file, providing access to the
-// file's Sync method and providing a wrapper for the Write method that provides log
-// file rotation. There are conflicting methods, so the file cannot be embedded.
-// l.mu is held for all its methods.
-type syncBuffer struct {
-	logger *loggingT
-	*bufio.Writer
-	file   *os.File
-	sev    severity
-	nbytes uint64 // The number of bytes written to this file
-}
-
-func (sb *syncBuffer) Sync() error {
-	return sb.file.Sync()
-}
-
-func (sb *syncBuffer) Write(p []byte) (n int, err error) {
-	if sb.nbytes+uint64(len(p)) >= MaxSize {
-		if err := sb.rotateFile(time.Now()); err != nil {
-			sb.logger.exit(err)
-		}
+		atomic.AddInt64(&stats.bytes, int64(n))
 	}
-	n, err = sb.Writer.Write(p)
-	sb.nbytes += uint64(n)
-	if err != nil {
-		sb.logger.exit(err)
-	}
-	return
-}
 
-// rotateFile closes the syncBuffer's file and starts a new one.
-func (sb *syncBuffer) rotateFile(now time.Time) error {
-	if sb.file != nil {
-		sb.Flush()
-		sb.file.Close()
-	}
-	var err error
-	sb.file, _, err = create(severityName[sb.sev], now)
-	sb.nbytes = 0
 	if err != nil {
-		return err
-	}
-
-	sb.Writer = bufio.NewWriterSize(sb.file, bufferSize)
-
-	// Write header.
-	var buf bytes.Buffer
-	fmt.Fprintf(&buf, "Log file created at: %s\n", now.Format("2006/01/02 15:04:05"))
-	fmt.Fprintf(&buf, "Running on machine: %s\n", host)
-	fmt.Fprintf(&buf, "Binary: Built with %s %s for %s/%s\n", runtime.Compiler, runtime.Version(), runtime.GOOS, runtime.GOARCH)
-	fmt.Fprintf(&buf, "Log line format: [IWEF]mmdd hh:mm:ss.uuuuuu threadid file:line] msg\n")
-	n, err := sb.file.Write(buf.Bytes())
-	sb.nbytes += uint64(n)
-	return err
-}
-
-// bufferSize sizes the buffer associated with each log file. It's large
-// so that log records can accumulate without the logging thread blocking
-// on disk I/O. The flushDaemon will block instead.
-const bufferSize = 256 * 1024
-
-// createFiles creates all the log files for severity from sev down to infoLog.
-// l.mu is held.
-func (l *loggingT) createFiles(sev severity) error {
-	now := time.Now()
-	// Files are created in decreasing severity order, so as soon as we find one
-	// has already been created, we can stop.
-	for s := sev; s >= infoLog && l.file[s] == nil; s-- {
-		sb := &syncBuffer{
-			logger: l,
-			sev:    s,
-		}
-		if err := sb.rotateFile(now); err != nil {
-			return err
-		}
-		l.file[s] = sb
-	}
-	return nil
-}
-
-const flushInterval = 30 * time.Second
-
-// flushDaemon periodically flushes the log file buffers.
-func (l *loggingT) flushDaemon() {
-	for _ = range time.NewTicker(flushInterval).C {
-		l.lockAndFlushAll()
-	}
-}
-
-// lockAndFlushAll is like flushAll but locks l.mu first.
-func (l *loggingT) lockAndFlushAll() {
-	l.mu.Lock()
-	l.flushAll()
-	l.mu.Unlock()
-}
-
-// flushAll flushes all the logs and attempts to "sync" their data to disk.
-// l.mu is held.
-func (l *loggingT) flushAll() {
-	// Flush from fatal down, in case there's trouble flushing.
-	for s := fatalLog; s >= infoLog; s-- {
-		file := l.file[s]
-		if file != nil {
-			file.Flush() // ignore error
-			file.Sync()  // ignore error
-		}
+		logsink.Printf(meta, "glog: exiting because of error: %s", err)
+		sinks.file.Flush()
+		os.Exit(2)
 	}
 }
 
@@ -912,9 +261,9 @@ func (l *loggingT) flushAll() {
 // Valid names are "INFO", "WARNING", "ERROR", and "FATAL".  If the name is not
 // recognized, CopyStandardLogTo panics.
 func CopyStandardLogTo(name string) {
-	sev, ok := severityByName(name)
-	if !ok {
-		panic(fmt.Sprintf("log.CopyStandardLogTo(%q): unrecognized severity name", name))
+	sev, err := logsink.ParseSeverity(name)
+	if err != nil {
+		panic(fmt.Sprintf("log.CopyStandardLogTo(%q): %v", name, err))
 	}
 	// Set a log format that captures the user's file and line:
 	//   d.go:23: message
@@ -922,9 +271,22 @@ func CopyStandardLogTo(name string) {
 	stdLog.SetOutput(logBridge(sev))
 }
 
+// NewStandardLogger returns a Logger that writes to the Google logs for the
+// named and lower severities.
+//
+// Valid names are "INFO", "WARNING", "ERROR", and "FATAL". If the name is not
+// recognized, NewStandardLogger panics.
+func NewStandardLogger(name string) *stdLog.Logger {
+	sev, err := logsink.ParseSeverity(name)
+	if err != nil {
+		panic(fmt.Sprintf("log.NewStandardLogger(%q): %v", name, err))
+	}
+	return stdLog.New(logBridge(sev), "", stdLog.Lshortfile)
+}
+
 // logBridge provides the Write method that enables CopyStandardLogTo to connect
 // Go's standard logs to the logs provided by this package.
-type logBridge severity
+type logBridge logsink.Severity
 
 // Write parses the standard logging line and passes its components to the
 // logger for severity(lb).
@@ -946,36 +308,72 @@ func (lb logBridge) Write(b []byte) (n int, err error) {
 			line = 1
 		}
 	}
-	// printWithFileLine with alsoToStderr=true, so standard log messages
-	// always appear on standard error.
-	logging.printWithFileLine(severity(lb), file, line, true, text)
+
+	// The depth below hard-codes details of how stdlog gets here.  The alternative would be to walk
+	// up the stack looking for src/log/log.go but that seems like it would be
+	// unfortunately slow.
+	const stdLogDepth = 4
+
+	metai, meta := metaPoolGet()
+	*meta = logsink.Meta{
+		Time:     timeNow(),
+		File:     file,
+		Line:     line,
+		Depth:    stdLogDepth,
+		Severity: logsink.Severity(lb),
+		Thread:   int64(pid),
+	}
+
+	format := "%s"
+	args := []any{text}
+	if backtraceAt(file, line) {
+		format, args = appendBacktrace(meta.Depth, format, args)
+	}
+
+	sinkf(meta, format, args...)
+	metaPool.Put(metai)
+
 	return len(b), nil
 }
 
-// setV computes and remembers the V level for a given PC
-// when vmodule is enabled.
-// File pattern matching takes the basename of the file, stripped
-// of its .go suffix, and uses filepath.Match, which is a little more
-// general than the *? matching used in C++.
-// l.mu is held.
-func (l *loggingT) setV(pc uintptr) Level {
-	fn := runtime.FuncForPC(pc)
-	file, _ := fn.FileLine(pc)
-	// The file is something like /a/b/c/d.go. We want just the d.
-	if strings.HasSuffix(file, ".go") {
-		file = file[:len(file)-3]
+// defaultFormat returns a fmt.Printf format specifier that formats its
+// arguments as if they were passed to fmt.Print.
+func defaultFormat(args []any) string {
+	n := len(args)
+	switch n {
+	case 0:
+		return ""
+	case 1:
+		return "%v"
+	}
+
+	b := make([]byte, 0, n*3-1)
+	wasString := true // Suppress leading space.
+	for _, arg := range args {
+		isString := arg != nil && reflect.TypeOf(arg).Kind() == reflect.String
+		if wasString || isString {
+			b = append(b, "%v"...)
+		} else {
+			b = append(b, " %v"...)
+		}
+		wasString = isString
 	}
-	if slash := strings.LastIndex(file, "/"); slash >= 0 {
-		file = file[slash+1:]
+	return string(b)
+}
+
+// lnFormat returns a fmt.Printf format specifier that formats its arguments
+// as if they were passed to fmt.Println.
+func lnFormat(args []any) string {
+	if len(args) == 0 {
+		return "\n"
 	}
-	for _, filter := range l.vmodule.filter {
-		if filter.match(file) {
-			l.vmap[pc] = filter.level
-			return filter.level
-		}
+
+	b := make([]byte, 0, len(args)*3)
+	for range args {
+		b = append(b, "%v "...)
 	}
-	l.vmap[pc] = 0
-	return 0
+	b[len(b)-1] = '\n' // Replace the last space with a newline.
+	return string(b)
 }
 
 // Verbose is a boolean type that implements Infof (like Printf) etc.
@@ -986,195 +384,394 @@ type Verbose bool
 // The returned value is a boolean of type Verbose, which implements Info, Infoln
 // and Infof. These methods will write to the Info log if called.
 // Thus, one may write either
+//
 //	if glog.V(2) { glog.Info("log this") }
+//
 // or
+//
 //	glog.V(2).Info("log this")
+//
 // The second form is shorter but the first is cheaper if logging is off because it does
 // not evaluate its arguments.
 //
 // Whether an individual call to V generates a log record depends on the setting of
 // the -v and --vmodule flags; both are off by default. If the level in the call to
-// V is at least the value of -v, or of -vmodule for the source file containing the
+// V is at most the value of -v, or of -vmodule for the source file containing the
 // call, the V call will log.
 func V(level Level) Verbose {
-	// This function tries hard to be cheap unless there's work to do.
-	// The fast path is two atomic loads and compares.
+	return VDepth(1, level)
+}
 
-	// Here is a cheap but safe test to see if V logging is enabled globally.
-	if logging.verbosity.get() >= level {
-		return Verbose(true)
-	}
+// VDepth acts as V but uses depth to determine which call frame to check vmodule for.
+// VDepth(0, level) is the same as V(level).
+func VDepth(depth int, level Level) Verbose {
+	return Verbose(verboseEnabled(depth+1, level))
+}
 
-	// It's off globally but it vmodule may still be set.
-	// Here is another cheap but safe test to see if vmodule is enabled.
-	if atomic.LoadInt32(&logging.filterLength) > 0 {
-		// Now we need a proper lock to use the logging structure. The pcs field
-		// is shared so we must lock before accessing it. This is fairly expensive,
-		// but if V logging is enabled we're slow anyway.
-		logging.mu.Lock()
-		defer logging.mu.Unlock()
-		if runtime.Callers(2, logging.pcs[:]) == 0 {
-			return Verbose(false)
-		}
-		v, ok := logging.vmap[logging.pcs[0]]
-		if !ok {
-			v = logging.setV(logging.pcs[0])
-		}
-		return Verbose(v >= level)
+// Info is equivalent to the global Info function, guarded by the value of v.
+// See the documentation of V for usage.
+func (v Verbose) Info(args ...any) {
+	v.InfoDepth(1, args...)
+}
+
+// InfoDepth is equivalent to the global InfoDepth function, guarded by the value of v.
+// See the documentation of V for usage.
+func (v Verbose) InfoDepth(depth int, args ...any) {
+	if v {
+		logf(depth+1, logsink.Info, true, noStack, defaultFormat(args), args...)
 	}
-	return Verbose(false)
 }
 
-// Info is equivalent to the global Info function, guarded by the value of v.
+// InfoDepthf is equivalent to the global InfoDepthf function, guarded by the value of v.
 // See the documentation of V for usage.
-func (v Verbose) Info(args ...interface{}) {
+func (v Verbose) InfoDepthf(depth int, format string, args ...any) {
 	if v {
-		logging.print(infoLog, args...)
+		logf(depth+1, logsink.Info, true, noStack, format, args...)
 	}
 }
 
 // Infoln is equivalent to the global Infoln function, guarded by the value of v.
 // See the documentation of V for usage.
-func (v Verbose) Infoln(args ...interface{}) {
+func (v Verbose) Infoln(args ...any) {
 	if v {
-		logging.println(infoLog, args...)
+		logf(1, logsink.Info, true, noStack, lnFormat(args), args...)
 	}
 }
 
 // Infof is equivalent to the global Infof function, guarded by the value of v.
 // See the documentation of V for usage.
-func (v Verbose) Infof(format string, args ...interface{}) {
+func (v Verbose) Infof(format string, args ...any) {
 	if v {
-		logging.printf(infoLog, format, args...)
+		logf(1, logsink.Info, true, noStack, format, args...)
+	}
+}
+
+// InfoContext is equivalent to the global InfoContext function, guarded by the value of v.
+// See the documentation of V for usage.
+func (v Verbose) InfoContext(ctx context.Context, args ...any) {
+	v.InfoContextDepth(ctx, 1, args...)
+}
+
+// InfoContextf is equivalent to the global InfoContextf function, guarded by the value of v.
+// See the documentation of V for usage.
+func (v Verbose) InfoContextf(ctx context.Context, format string, args ...any) {
+	if v {
+		ctxlogf(ctx, 1, logsink.Info, true, noStack, format, args...)
+	}
+}
+
+// InfoContextDepth is equivalent to the global InfoContextDepth function, guarded by the value of v.
+// See the documentation of V for usage.
+func (v Verbose) InfoContextDepth(ctx context.Context, depth int, args ...any) {
+	if v {
+		ctxlogf(ctx, depth+1, logsink.Info, true, noStack, defaultFormat(args), args...)
+	}
+}
+
+// InfoContextDepthf is equivalent to the global InfoContextDepthf function, guarded by the value of v.
+// See the documentation of V for usage.
+func (v Verbose) InfoContextDepthf(ctx context.Context, depth int, format string, args ...any) {
+	if v {
+		ctxlogf(ctx, depth+1, logsink.Info, true, noStack, format, args...)
 	}
 }
 
 // Info logs to the INFO log.
 // Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Info(args ...interface{}) {
-	logging.print(infoLog, args...)
+func Info(args ...any) {
+	InfoDepth(1, args...)
 }
 
-// InfoDepth acts as Info but uses depth to determine which call frame to log.
-// InfoDepth(0, "msg") is the same as Info("msg").
-func InfoDepth(depth int, args ...interface{}) {
-	logging.printDepth(infoLog, depth, args...)
+// InfoDepth calls Info from a different depth in the call stack.
+// This enables a callee to emit logs that use the callsite information of its caller
+// or any other callers in the stack. When depth == 0, the original callee's line
+// information is emitted. When depth > 0, depth frames are skipped in the call stack
+// and the final frame is treated like the original callee to Info.
+func InfoDepth(depth int, args ...any) {
+	logf(depth+1, logsink.Info, false, noStack, defaultFormat(args), args...)
+}
+
+// InfoDepthf acts as InfoDepth but with format string.
+func InfoDepthf(depth int, format string, args ...any) {
+	logf(depth+1, logsink.Info, false, noStack, format, args...)
 }
 
 // Infoln logs to the INFO log.
 // Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Infoln(args ...interface{}) {
-	logging.println(infoLog, args...)
+func Infoln(args ...any) {
+	logf(1, logsink.Info, false, noStack, lnFormat(args), args...)
 }
 
 // Infof logs to the INFO log.
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Infof(format string, args ...interface{}) {
-	logging.printf(infoLog, format, args...)
+func Infof(format string, args ...any) {
+	logf(1, logsink.Info, false, noStack, format, args...)
+}
+
+// InfoContext is like [Info], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func InfoContext(ctx context.Context, args ...any) {
+	InfoContextDepth(ctx, 1, args...)
+}
+
+// InfoContextf is like [Infof], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func InfoContextf(ctx context.Context, format string, args ...any) {
+	ctxlogf(ctx, 1, logsink.Info, false, noStack, format, args...)
+}
+
+// InfoContextDepth is like [InfoDepth], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func InfoContextDepth(ctx context.Context, depth int, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Info, false, noStack, defaultFormat(args), args...)
+}
+
+// InfoContextDepthf is like [InfoDepthf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func InfoContextDepthf(ctx context.Context, depth int, format string, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Info, false, noStack, format, args...)
 }
 
 // Warning logs to the WARNING and INFO logs.
 // Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Warning(args ...interface{}) {
-	logging.print(warningLog, args...)
+func Warning(args ...any) {
+	WarningDepth(1, args...)
 }
 
 // WarningDepth acts as Warning but uses depth to determine which call frame to log.
 // WarningDepth(0, "msg") is the same as Warning("msg").
-func WarningDepth(depth int, args ...interface{}) {
-	logging.printDepth(warningLog, depth, args...)
+func WarningDepth(depth int, args ...any) {
+	logf(depth+1, logsink.Warning, false, noStack, defaultFormat(args), args...)
+}
+
+// WarningDepthf acts as Warningf but uses depth to determine which call frame to log.
+// WarningDepthf(0, "msg") is the same as Warningf("msg").
+func WarningDepthf(depth int, format string, args ...any) {
+	logf(depth+1, logsink.Warning, false, noStack, format, args...)
 }
 
 // Warningln logs to the WARNING and INFO logs.
 // Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Warningln(args ...interface{}) {
-	logging.println(warningLog, args...)
+func Warningln(args ...any) {
+	logf(1, logsink.Warning, false, noStack, lnFormat(args), args...)
 }
 
 // Warningf logs to the WARNING and INFO logs.
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Warningf(format string, args ...interface{}) {
-	logging.printf(warningLog, format, args...)
+func Warningf(format string, args ...any) {
+	logf(1, logsink.Warning, false, noStack, format, args...)
+}
+
+// WarningContext is like [Warning], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func WarningContext(ctx context.Context, args ...any) {
+	WarningContextDepth(ctx, 1, args...)
+}
+
+// WarningContextf is like [Warningf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func WarningContextf(ctx context.Context, format string, args ...any) {
+	ctxlogf(ctx, 1, logsink.Warning, false, noStack, format, args...)
+}
+
+// WarningContextDepth is like [WarningDepth], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func WarningContextDepth(ctx context.Context, depth int, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Warning, false, noStack, defaultFormat(args), args...)
+}
+
+// WarningContextDepthf is like [WarningDepthf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func WarningContextDepthf(ctx context.Context, depth int, format string, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Warning, false, noStack, format, args...)
 }
 
 // Error logs to the ERROR, WARNING, and INFO logs.
 // Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Error(args ...interface{}) {
-	logging.print(errorLog, args...)
+func Error(args ...any) {
+	ErrorDepth(1, args...)
 }
 
 // ErrorDepth acts as Error but uses depth to determine which call frame to log.
 // ErrorDepth(0, "msg") is the same as Error("msg").
-func ErrorDepth(depth int, args ...interface{}) {
-	logging.printDepth(errorLog, depth, args...)
+func ErrorDepth(depth int, args ...any) {
+	logf(depth+1, logsink.Error, false, noStack, defaultFormat(args), args...)
+}
+
+// ErrorDepthf acts as Errorf but uses depth to determine which call frame to log.
+// ErrorDepthf(0, "msg") is the same as Errorf("msg").
+func ErrorDepthf(depth int, format string, args ...any) {
+	logf(depth+1, logsink.Error, false, noStack, format, args...)
 }
 
 // Errorln logs to the ERROR, WARNING, and INFO logs.
 // Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Errorln(args ...interface{}) {
-	logging.println(errorLog, args...)
+func Errorln(args ...any) {
+	logf(1, logsink.Error, false, noStack, lnFormat(args), args...)
 }
 
 // Errorf logs to the ERROR, WARNING, and INFO logs.
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Errorf(format string, args ...interface{}) {
-	logging.printf(errorLog, format, args...)
+func Errorf(format string, args ...any) {
+	logf(1, logsink.Error, false, noStack, format, args...)
+}
+
+// ErrorContext is like [Error], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ErrorContext(ctx context.Context, args ...any) {
+	ErrorContextDepth(ctx, 1, args...)
+}
+
+// ErrorContextf is like [Errorf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ErrorContextf(ctx context.Context, format string, args ...any) {
+	ctxlogf(ctx, 1, logsink.Error, false, noStack, format, args...)
+}
+
+// ErrorContextDepth is like [ErrorDepth], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ErrorContextDepth(ctx context.Context, depth int, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Error, false, noStack, defaultFormat(args), args...)
+}
+
+// ErrorContextDepthf is like [ErrorDepthf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ErrorContextDepthf(ctx context.Context, depth int, format string, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Error, false, noStack, format, args...)
+}
+
+func ctxfatalf(ctx context.Context, depth int, format string, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Fatal, false, withStack, format, args...)
+	sinks.file.Flush()
+
+	err := abortProcess() // Should not return.
+
+	// Failed to abort the process using signals.  Dump a stack trace and exit.
+	Errorf("abortProcess returned unexpectedly: %v", err)
+	sinks.file.Flush()
+	pprof.Lookup("goroutine").WriteTo(os.Stderr, 1)
+	os.Exit(2) // Exit with the same code as the default SIGABRT handler.
+}
+
+func fatalf(depth int, format string, args ...any) {
+	ctxfatalf(nil, depth+1, format, args...)
 }
 
 // Fatal logs to the FATAL, ERROR, WARNING, and INFO logs,
-// including a stack trace of all running goroutines, then calls os.Exit(255).
+// including a stack trace of all running goroutines, then calls os.Exit(2).
 // Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Fatal(args ...interface{}) {
-	logging.print(fatalLog, args...)
+func Fatal(args ...any) {
+	FatalDepth(1, args...)
 }
 
 // FatalDepth acts as Fatal but uses depth to determine which call frame to log.
 // FatalDepth(0, "msg") is the same as Fatal("msg").
-func FatalDepth(depth int, args ...interface{}) {
-	logging.printDepth(fatalLog, depth, args...)
+func FatalDepth(depth int, args ...any) {
+	fatalf(depth+1, defaultFormat(args), args...)
+}
+
+// FatalDepthf acts as Fatalf but uses depth to determine which call frame to log.
+// FatalDepthf(0, "msg") is the same as Fatalf("msg").
+func FatalDepthf(depth int, format string, args ...any) {
+	fatalf(depth+1, format, args...)
 }
 
 // Fatalln logs to the FATAL, ERROR, WARNING, and INFO logs,
-// including a stack trace of all running goroutines, then calls os.Exit(255).
+// including a stack trace of all running goroutines, then calls os.Exit(2).
 // Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
-func Fatalln(args ...interface{}) {
-	logging.println(fatalLog, args...)
+func Fatalln(args ...any) {
+	fatalf(1, lnFormat(args), args...)
 }
 
 // Fatalf logs to the FATAL, ERROR, WARNING, and INFO logs,
-// including a stack trace of all running goroutines, then calls os.Exit(255).
+// including a stack trace of all running goroutines, then calls os.Exit(2).
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Fatalf(format string, args ...interface{}) {
-	logging.printf(fatalLog, format, args...)
+func Fatalf(format string, args ...any) {
+	fatalf(1, format, args...)
+}
+
+// FatalContext is like [Fatal], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func FatalContext(ctx context.Context, args ...any) {
+	FatalContextDepth(ctx, 1, args...)
+}
+
+// FatalContextf is like [Fatalf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func FatalContextf(ctx context.Context, format string, args ...any) {
+	ctxfatalf(ctx, 1, format, args...)
 }
 
-// fatalNoStacks is non-zero if we are to exit without dumping goroutine stacks.
-// It allows Exit and relatives to use the Fatal logs.
-var fatalNoStacks uint32
+// FatalContextDepth is like [FatalDepth], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func FatalContextDepth(ctx context.Context, depth int, args ...any) {
+	ctxfatalf(ctx, depth+1, defaultFormat(args), args...)
+}
+
+// FatalContextDepthf is like [FatalDepthf], but with an extra [context.Context] parameter.
+func FatalContextDepthf(ctx context.Context, depth int, format string, args ...any) {
+	ctxfatalf(ctx, depth+1, format, args...)
+}
+
+func ctxexitf(ctx context.Context, depth int, format string, args ...any) {
+	ctxlogf(ctx, depth+1, logsink.Fatal, false, noStack, format, args...)
+	sinks.file.Flush()
+	os.Exit(1)
+}
+
+func exitf(depth int, format string, args ...any) {
+	ctxexitf(nil, depth+1, format, args...)
+}
 
 // Exit logs to the FATAL, ERROR, WARNING, and INFO logs, then calls os.Exit(1).
 // Arguments are handled in the manner of fmt.Print; a newline is appended if missing.
-func Exit(args ...interface{}) {
-	atomic.StoreUint32(&fatalNoStacks, 1)
-	logging.print(fatalLog, args...)
+func Exit(args ...any) {
+	ExitDepth(1, args...)
 }
 
 // ExitDepth acts as Exit but uses depth to determine which call frame to log.
 // ExitDepth(0, "msg") is the same as Exit("msg").
-func ExitDepth(depth int, args ...interface{}) {
-	atomic.StoreUint32(&fatalNoStacks, 1)
-	logging.printDepth(fatalLog, depth, args...)
+func ExitDepth(depth int, args ...any) {
+	exitf(depth+1, defaultFormat(args), args...)
+}
+
+// ExitDepthf acts as Exitf but uses depth to determine which call frame to log.
+// ExitDepthf(0, "msg") is the same as Exitf("msg").
+func ExitDepthf(depth int, format string, args ...any) {
+	exitf(depth+1, format, args...)
 }
 
 // Exitln logs to the FATAL, ERROR, WARNING, and INFO logs, then calls os.Exit(1).
-func Exitln(args ...interface{}) {
-	atomic.StoreUint32(&fatalNoStacks, 1)
-	logging.println(fatalLog, args...)
+func Exitln(args ...any) {
+	exitf(1, lnFormat(args), args...)
 }
 
 // Exitf logs to the FATAL, ERROR, WARNING, and INFO logs, then calls os.Exit(1).
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
-func Exitf(format string, args ...interface{}) {
-	atomic.StoreUint32(&fatalNoStacks, 1)
-	logging.printf(fatalLog, format, args...)
+func Exitf(format string, args ...any) {
+	exitf(1, format, args...)
+}
+
+// ExitContext is like [Exit], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ExitContext(ctx context.Context, args ...any) {
+	ExitContextDepth(ctx, 1, args...)
+}
+
+// ExitContextf is like [Exitf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ExitContextf(ctx context.Context, format string, args ...any) {
+	ctxexitf(ctx, 1, format, args...)
+}
+
+// ExitContextDepth is like [ExitDepth], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ExitContextDepth(ctx context.Context, depth int, args ...any) {
+	ctxexitf(ctx, depth+1, defaultFormat(args), args...)
+}
+
+// ExitContextDepthf is like [ExitDepthf], but with an extra [context.Context] parameter. The
+// context is used to pass the Trace Context to log sinks.
+func ExitContextDepthf(ctx context.Context, depth int, format string, args ...any) {
+	ctxexitf(ctx, depth+1, format, args...)
 }
diff --git a/vendor/github.com/golang/glog/glog_file.go b/vendor/github.com/golang/glog/glog_file.go
index 65075d28..8eb8b08c 100644
--- a/vendor/github.com/golang/glog/glog_file.go
+++ b/vendor/github.com/golang/glog/glog_file.go
@@ -1,6 +1,6 @@
-// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
+// Go support for leveled logs, analogous to https://github.com/google/glog.
 //
-// Copyright 2013 Google Inc. All Rights Reserved.
+// Copyright 2023 Google Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -19,26 +19,33 @@
 package glog
 
 import (
+	"bufio"
+	"bytes"
 	"errors"
 	"flag"
 	"fmt"
+	"io"
 	"os"
-	"os/user"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"sync"
 	"time"
-)
 
-// MaxSize is the maximum size of a log file in bytes.
-var MaxSize uint64 = 1024 * 1024 * 1800
+	"github.com/golang/glog/internal/logsink"
+)
 
 // logDirs lists the candidate directories for new log files.
 var logDirs []string
 
-// If non-empty, overrides the choice of directory in which to write logs.
-// See createLogDirs for the full list of possible destinations.
-var logDir = flag.String("log_dir", "", "If non-empty, write log files in this directory")
+var (
+	// If non-empty, overrides the choice of directory in which to write logs.
+	// See createLogDirs for the full list of possible destinations.
+	logDir      = flag.String("log_dir", "", "If non-empty, write log files in this directory")
+	logLink     = flag.String("log_link", "", "If non-empty, add symbolic links in this directory to the log files")
+	logBufLevel = flag.Int("logbuflevel", int(logsink.Info), "Buffer log messages logged at this level or lower"+
+		" (-1 means don't buffer; 0 means buffer INFO only; ...). Has limited applicability on non-prod platforms.")
+)
 
 func createLogDirs() {
 	if *logDir != "" {
@@ -60,13 +67,20 @@ func init() {
 		host = shortHostname(h)
 	}
 
-	current, err := user.Current()
-	if err == nil {
-		userName = current.Username
+	if u := lookupUser(); u != "" {
+		userName = u
 	}
-
-	// Sanitize userName since it may contain filepath separators on Windows.
-	userName = strings.Replace(userName, `\`, "_", -1)
+	// Sanitize userName since it is used to construct file paths.
+	userName = strings.Map(func(r rune) rune {
+		switch {
+		case r >= 'a' && r <= 'z':
+		case r >= 'A' && r <= 'Z':
+		case r >= '0' && r <= '9':
+		default:
+			return '_'
+		}
+		return r
+	}, userName)
 }
 
 // shortHostname returns its argument, truncating at the first period.
@@ -116,9 +130,289 @@ func create(tag string, t time.Time) (f *os.File, filename string, err error) {
 			symlink := filepath.Join(dir, link)
 			os.Remove(symlink)        // ignore err
 			os.Symlink(name, symlink) // ignore err
+			if *logLink != "" {
+				lsymlink := filepath.Join(*logLink, link)
+				os.Remove(lsymlink)         // ignore err
+				os.Symlink(fname, lsymlink) // ignore err
+			}
 			return f, fname, nil
 		}
 		lastErr = err
 	}
 	return nil, "", fmt.Errorf("log: cannot create log: %v", lastErr)
 }
+
+// flushSyncWriter is the interface satisfied by logging destinations.
+type flushSyncWriter interface {
+	Flush() error
+	Sync() error
+	io.Writer
+	filenames() []string
+}
+
+var sinks struct {
+	stderr stderrSink
+	file   fileSink
+}
+
+func init() {
+	// Register stderr first: that way if we crash during file-writing at least
+	// the log will have gone somewhere.
+	logsink.TextSinks = append(logsink.TextSinks, &sinks.stderr, &sinks.file)
+
+	sinks.file.flushChan = make(chan logsink.Severity, 1)
+	go sinks.file.flushDaemon()
+}
+
+// stderrSink is a logsink.Text that writes log entries to stderr
+// if they meet certain conditions.
+type stderrSink struct {
+	mu sync.Mutex
+	w  io.Writer // if nil Emit uses os.Stderr directly
+}
+
+// Enabled implements logsink.Text.Enabled.  It returns true if any of the
+// various stderr flags are enabled for logs of the given severity, if the log
+// message is from the standard "log" package, or if google.Init has not yet run
+// (and hence file logging is not yet initialized).
+func (s *stderrSink) Enabled(m *logsink.Meta) bool {
+	return toStderr || alsoToStderr || m.Severity >= stderrThreshold.get()
+}
+
+// Emit implements logsink.Text.Emit.
+func (s *stderrSink) Emit(m *logsink.Meta, data []byte) (n int, err error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	w := s.w
+	if w == nil {
+		w = os.Stderr
+	}
+	dn, err := w.Write(data)
+	n += dn
+	return n, err
+}
+
+// severityWriters is an array of flushSyncWriter with a value for each
+// logsink.Severity.
+type severityWriters [4]flushSyncWriter
+
+// fileSink is a logsink.Text that prints to a set of Google log files.
+type fileSink struct {
+	mu sync.Mutex
+	// file holds writer for each of the log types.
+	file      severityWriters
+	flushChan chan logsink.Severity
+}
+
+// Enabled implements logsink.Text.Enabled.  It returns true if google.Init
+// has run and both --disable_log_to_disk and --logtostderr are false.
+func (s *fileSink) Enabled(m *logsink.Meta) bool {
+	return !toStderr
+}
+
+// Emit implements logsink.Text.Emit
+func (s *fileSink) Emit(m *logsink.Meta, data []byte) (n int, err error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	if err = s.createMissingFiles(m.Severity); err != nil {
+		return 0, err
+	}
+	for sev := m.Severity; sev >= logsink.Info; sev-- {
+		if _, fErr := s.file[sev].Write(data); fErr != nil && err == nil {
+			err = fErr // Take the first error.
+		}
+	}
+	n = len(data)
+	if int(m.Severity) > *logBufLevel {
+		select {
+		case s.flushChan <- m.Severity:
+		default:
+		}
+	}
+
+	return n, err
+}
+
+// syncBuffer joins a bufio.Writer to its underlying file, providing access to the
+// file's Sync method and providing a wrapper for the Write method that provides log
+// file rotation. There are conflicting methods, so the file cannot be embedded.
+// s.mu is held for all its methods.
+type syncBuffer struct {
+	sink *fileSink
+	*bufio.Writer
+	file   *os.File
+	names  []string
+	sev    logsink.Severity
+	nbytes uint64 // The number of bytes written to this file
+}
+
+func (sb *syncBuffer) Sync() error {
+	return sb.file.Sync()
+}
+
+func (sb *syncBuffer) Write(p []byte) (n int, err error) {
+	if sb.nbytes+uint64(len(p)) >= MaxSize {
+		if err := sb.rotateFile(time.Now()); err != nil {
+			return 0, err
+		}
+	}
+	n, err = sb.Writer.Write(p)
+	sb.nbytes += uint64(n)
+	return n, err
+}
+
+func (sb *syncBuffer) filenames() []string {
+	return sb.names
+}
+
+const footer = "\nCONTINUED IN NEXT FILE\n"
+
+// rotateFile closes the syncBuffer's file and starts a new one.
+func (sb *syncBuffer) rotateFile(now time.Time) error {
+	var err error
+	pn := "<none>"
+	file, name, err := create(sb.sev.String(), now)
+
+	if sb.file != nil {
+		// The current log file becomes the previous log at the end of
+		// this block, so save its name for use in the header of the next
+		// file.
+		pn = sb.file.Name()
+		sb.Flush()
+		// If there's an existing file, write a footer with the name of
+		// the next file in the chain, followed by the constant string
+		// \nCONTINUED IN NEXT FILE\n to make continuation detection simple.
+		sb.file.Write([]byte("Next log: "))
+		sb.file.Write([]byte(name))
+		sb.file.Write([]byte(footer))
+		sb.file.Close()
+	}
+
+	sb.file = file
+	sb.names = append(sb.names, name)
+	sb.nbytes = 0
+	if err != nil {
+		return err
+	}
+
+	sb.Writer = bufio.NewWriterSize(sb.file, bufferSize)
+
+	// Write header.
+	var buf bytes.Buffer
+	fmt.Fprintf(&buf, "Log file created at: %s\n", now.Format("2006/01/02 15:04:05"))
+	fmt.Fprintf(&buf, "Running on machine: %s\n", host)
+	fmt.Fprintf(&buf, "Binary: Built with %s %s for %s/%s\n", runtime.Compiler, runtime.Version(), runtime.GOOS, runtime.GOARCH)
+	fmt.Fprintf(&buf, "Previous log: %s\n", pn)
+	fmt.Fprintf(&buf, "Log line format: [IWEF]mmdd hh:mm:ss.uuuuuu threadid file:line] msg\n")
+	n, err := sb.file.Write(buf.Bytes())
+	sb.nbytes += uint64(n)
+	return err
+}
+
+// bufferSize sizes the buffer associated with each log file. It's large
+// so that log records can accumulate without the logging thread blocking
+// on disk I/O. The flushDaemon will block instead.
+const bufferSize = 256 * 1024
+
+// createMissingFiles creates all the log files for severity from infoLog up to
+// upTo that have not already been created.
+// s.mu is held.
+func (s *fileSink) createMissingFiles(upTo logsink.Severity) error {
+	if s.file[upTo] != nil {
+		return nil
+	}
+	now := time.Now()
+	// Files are created in increasing severity order, so we can be assured that
+	// if a high severity logfile exists, then so do all of lower severity.
+	for sev := logsink.Info; sev <= upTo; sev++ {
+		if s.file[sev] != nil {
+			continue
+		}
+		sb := &syncBuffer{
+			sink: s,
+			sev:  sev,
+		}
+		if err := sb.rotateFile(now); err != nil {
+			return err
+		}
+		s.file[sev] = sb
+	}
+	return nil
+}
+
+// flushDaemon periodically flushes the log file buffers.
+func (s *fileSink) flushDaemon() {
+	tick := time.NewTicker(30 * time.Second)
+	defer tick.Stop()
+	for {
+		select {
+		case <-tick.C:
+			s.Flush()
+		case sev := <-s.flushChan:
+			s.flush(sev)
+		}
+	}
+}
+
+// Flush flushes all pending log I/O.
+func Flush() {
+	sinks.file.Flush()
+}
+
+// Flush flushes all the logs and attempts to "sync" their data to disk.
+func (s *fileSink) Flush() error {
+	return s.flush(logsink.Info)
+}
+
+// flush flushes all logs of severity threshold or greater.
+func (s *fileSink) flush(threshold logsink.Severity) error {
+	var firstErr error
+	updateErr := func(err error) {
+		if err != nil && firstErr == nil {
+			firstErr = err
+		}
+	}
+
+	// Remember where we flushed, so we can call sync without holding
+	// the lock.
+	var files []flushSyncWriter
+	func() {
+		s.mu.Lock()
+		defer s.mu.Unlock()
+		// Flush from fatal down, in case there's trouble flushing.
+		for sev := logsink.Fatal; sev >= threshold; sev-- {
+			if file := s.file[sev]; file != nil {
+				updateErr(file.Flush())
+				files = append(files, file)
+			}
+		}
+	}()
+
+	for _, file := range files {
+		updateErr(file.Sync())
+	}
+
+	return firstErr
+}
+
+// Names returns the names of the log files holding the FATAL, ERROR,
+// WARNING, or INFO logs. Returns ErrNoLog if the log for the given
+// level doesn't exist (e.g. because no messages of that level have been
+// written). This may return multiple names if the log type requested
+// has rolled over.
+func Names(s string) ([]string, error) {
+	severity, err := logsink.ParseSeverity(s)
+	if err != nil {
+		return nil, err
+	}
+
+	sinks.file.mu.Lock()
+	defer sinks.file.mu.Unlock()
+	f := sinks.file.file[severity]
+	if f == nil {
+		return nil, ErrNoLog
+	}
+
+	return f.filenames(), nil
+}
diff --git a/vendor/github.com/golang/protobuf/LICENSE b/vendor/github.com/golang/protobuf/LICENSE
index 1b1b1921..0f646931 100644
--- a/vendor/github.com/golang/protobuf/LICENSE
+++ b/vendor/github.com/golang/protobuf/LICENSE
@@ -1,7 +1,4 @@
-Go support for Protocol Buffers - Google's data interchange format
-
 Copyright 2010 The Go Authors.  All rights reserved.
-https://github.com/golang/protobuf
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
diff --git a/vendor/github.com/golang/protobuf/proto/Makefile b/vendor/github.com/golang/protobuf/proto/Makefile
deleted file mode 100644
index e2e0651a..00000000
--- a/vendor/github.com/golang/protobuf/proto/Makefile
+++ /dev/null
@@ -1,43 +0,0 @@
-# Go support for Protocol Buffers - Google's data interchange format
-#
-# Copyright 2010 The Go Authors.  All rights reserved.
-# https://github.com/golang/protobuf
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-install:
-	go install
-
-test: install generate-test-pbs
-	go test
-
-
-generate-test-pbs:
-	make install
-	make -C testdata
-	protoc --go_out=Mtestdata/test.proto=github.com/golang/protobuf/proto/testdata,Mgoogle/protobuf/any.proto=github.com/golang/protobuf/ptypes/any:. proto3_proto/proto3.proto
-	make
diff --git a/vendor/github.com/golang/protobuf/proto/clone.go b/vendor/github.com/golang/protobuf/proto/clone.go
deleted file mode 100644
index e392575b..00000000
--- a/vendor/github.com/golang/protobuf/proto/clone.go
+++ /dev/null
@@ -1,229 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2011 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Protocol buffer deep copy and merge.
-// TODO: RawMessage.
-
-package proto
-
-import (
-	"log"
-	"reflect"
-	"strings"
-)
-
-// Clone returns a deep copy of a protocol buffer.
-func Clone(pb Message) Message {
-	in := reflect.ValueOf(pb)
-	if in.IsNil() {
-		return pb
-	}
-
-	out := reflect.New(in.Type().Elem())
-	// out is empty so a merge is a deep copy.
-	mergeStruct(out.Elem(), in.Elem())
-	return out.Interface().(Message)
-}
-
-// Merge merges src into dst.
-// Required and optional fields that are set in src will be set to that value in dst.
-// Elements of repeated fields will be appended.
-// Merge panics if src and dst are not the same type, or if dst is nil.
-func Merge(dst, src Message) {
-	in := reflect.ValueOf(src)
-	out := reflect.ValueOf(dst)
-	if out.IsNil() {
-		panic("proto: nil destination")
-	}
-	if in.Type() != out.Type() {
-		// Explicit test prior to mergeStruct so that mistyped nils will fail
-		panic("proto: type mismatch")
-	}
-	if in.IsNil() {
-		// Merging nil into non-nil is a quiet no-op
-		return
-	}
-	mergeStruct(out.Elem(), in.Elem())
-}
-
-func mergeStruct(out, in reflect.Value) {
-	sprop := GetProperties(in.Type())
-	for i := 0; i < in.NumField(); i++ {
-		f := in.Type().Field(i)
-		if strings.HasPrefix(f.Name, "XXX_") {
-			continue
-		}
-		mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i])
-	}
-
-	if emIn, ok := extendable(in.Addr().Interface()); ok {
-		emOut, _ := extendable(out.Addr().Interface())
-		mIn, muIn := emIn.extensionsRead()
-		if mIn != nil {
-			mOut := emOut.extensionsWrite()
-			muIn.Lock()
-			mergeExtension(mOut, mIn)
-			muIn.Unlock()
-		}
-	}
-
-	uf := in.FieldByName("XXX_unrecognized")
-	if !uf.IsValid() {
-		return
-	}
-	uin := uf.Bytes()
-	if len(uin) > 0 {
-		out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...))
-	}
-}
-
-// mergeAny performs a merge between two values of the same type.
-// viaPtr indicates whether the values were indirected through a pointer (implying proto2).
-// prop is set if this is a struct field (it may be nil).
-func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) {
-	if in.Type() == protoMessageType {
-		if !in.IsNil() {
-			if out.IsNil() {
-				out.Set(reflect.ValueOf(Clone(in.Interface().(Message))))
-			} else {
-				Merge(out.Interface().(Message), in.Interface().(Message))
-			}
-		}
-		return
-	}
-	switch in.Kind() {
-	case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
-		reflect.String, reflect.Uint32, reflect.Uint64:
-		if !viaPtr && isProto3Zero(in) {
-			return
-		}
-		out.Set(in)
-	case reflect.Interface:
-		// Probably a oneof field; copy non-nil values.
-		if in.IsNil() {
-			return
-		}
-		// Allocate destination if it is not set, or set to a different type.
-		// Otherwise we will merge as normal.
-		if out.IsNil() || out.Elem().Type() != in.Elem().Type() {
-			out.Set(reflect.New(in.Elem().Elem().Type())) // interface -> *T -> T -> new(T)
-		}
-		mergeAny(out.Elem(), in.Elem(), false, nil)
-	case reflect.Map:
-		if in.Len() == 0 {
-			return
-		}
-		if out.IsNil() {
-			out.Set(reflect.MakeMap(in.Type()))
-		}
-		// For maps with value types of *T or []byte we need to deep copy each value.
-		elemKind := in.Type().Elem().Kind()
-		for _, key := range in.MapKeys() {
-			var val reflect.Value
-			switch elemKind {
-			case reflect.Ptr:
-				val = reflect.New(in.Type().Elem().Elem())
-				mergeAny(val, in.MapIndex(key), false, nil)
-			case reflect.Slice:
-				val = in.MapIndex(key)
-				val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
-			default:
-				val = in.MapIndex(key)
-			}
-			out.SetMapIndex(key, val)
-		}
-	case reflect.Ptr:
-		if in.IsNil() {
-			return
-		}
-		if out.IsNil() {
-			out.Set(reflect.New(in.Elem().Type()))
-		}
-		mergeAny(out.Elem(), in.Elem(), true, nil)
-	case reflect.Slice:
-		if in.IsNil() {
-			return
-		}
-		if in.Type().Elem().Kind() == reflect.Uint8 {
-			// []byte is a scalar bytes field, not a repeated field.
-
-			// Edge case: if this is in a proto3 message, a zero length
-			// bytes field is considered the zero value, and should not
-			// be merged.
-			if prop != nil && prop.proto3 && in.Len() == 0 {
-				return
-			}
-
-			// Make a deep copy.
-			// Append to []byte{} instead of []byte(nil) so that we never end up
-			// with a nil result.
-			out.SetBytes(append([]byte{}, in.Bytes()...))
-			return
-		}
-		n := in.Len()
-		if out.IsNil() {
-			out.Set(reflect.MakeSlice(in.Type(), 0, n))
-		}
-		switch in.Type().Elem().Kind() {
-		case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
-			reflect.String, reflect.Uint32, reflect.Uint64:
-			out.Set(reflect.AppendSlice(out, in))
-		default:
-			for i := 0; i < n; i++ {
-				x := reflect.Indirect(reflect.New(in.Type().Elem()))
-				mergeAny(x, in.Index(i), false, nil)
-				out.Set(reflect.Append(out, x))
-			}
-		}
-	case reflect.Struct:
-		mergeStruct(out, in)
-	default:
-		// unknown type, so not a protocol buffer
-		log.Printf("proto: don't know how to copy %v", in)
-	}
-}
-
-func mergeExtension(out, in map[int32]Extension) {
-	for extNum, eIn := range in {
-		eOut := Extension{desc: eIn.desc}
-		if eIn.value != nil {
-			v := reflect.New(reflect.TypeOf(eIn.value)).Elem()
-			mergeAny(v, reflect.ValueOf(eIn.value), false, nil)
-			eOut.value = v.Interface()
-		}
-		if eIn.enc != nil {
-			eOut.enc = make([]byte, len(eIn.enc))
-			copy(eOut.enc, eIn.enc)
-		}
-
-		out[extNum] = eOut
-	}
-}
diff --git a/vendor/github.com/golang/protobuf/proto/decode.go b/vendor/github.com/golang/protobuf/proto/decode.go
deleted file mode 100644
index aa207298..00000000
--- a/vendor/github.com/golang/protobuf/proto/decode.go
+++ /dev/null
@@ -1,970 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-/*
- * Routines for decoding protocol buffer data to construct in-memory representations.
- */
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"reflect"
-)
-
-// errOverflow is returned when an integer is too large to be represented.
-var errOverflow = errors.New("proto: integer overflow")
-
-// ErrInternalBadWireType is returned by generated code when an incorrect
-// wire type is encountered. It does not get returned to user code.
-var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof")
-
-// The fundamental decoders that interpret bytes on the wire.
-// Those that take integer types all return uint64 and are
-// therefore of type valueDecoder.
-
-// DecodeVarint reads a varint-encoded integer from the slice.
-// It returns the integer and the number of bytes consumed, or
-// zero if there is not enough.
-// This is the format for the
-// int32, int64, uint32, uint64, bool, and enum
-// protocol buffer types.
-func DecodeVarint(buf []byte) (x uint64, n int) {
-	for shift := uint(0); shift < 64; shift += 7 {
-		if n >= len(buf) {
-			return 0, 0
-		}
-		b := uint64(buf[n])
-		n++
-		x |= (b & 0x7F) << shift
-		if (b & 0x80) == 0 {
-			return x, n
-		}
-	}
-
-	// The number is too large to represent in a 64-bit value.
-	return 0, 0
-}
-
-func (p *Buffer) decodeVarintSlow() (x uint64, err error) {
-	i := p.index
-	l := len(p.buf)
-
-	for shift := uint(0); shift < 64; shift += 7 {
-		if i >= l {
-			err = io.ErrUnexpectedEOF
-			return
-		}
-		b := p.buf[i]
-		i++
-		x |= (uint64(b) & 0x7F) << shift
-		if b < 0x80 {
-			p.index = i
-			return
-		}
-	}
-
-	// The number is too large to represent in a 64-bit value.
-	err = errOverflow
-	return
-}
-
-// DecodeVarint reads a varint-encoded integer from the Buffer.
-// This is the format for the
-// int32, int64, uint32, uint64, bool, and enum
-// protocol buffer types.
-func (p *Buffer) DecodeVarint() (x uint64, err error) {
-	i := p.index
-	buf := p.buf
-
-	if i >= len(buf) {
-		return 0, io.ErrUnexpectedEOF
-	} else if buf[i] < 0x80 {
-		p.index++
-		return uint64(buf[i]), nil
-	} else if len(buf)-i < 10 {
-		return p.decodeVarintSlow()
-	}
-
-	var b uint64
-	// we already checked the first byte
-	x = uint64(buf[i]) - 0x80
-	i++
-
-	b = uint64(buf[i])
-	i++
-	x += b << 7
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 7
-
-	b = uint64(buf[i])
-	i++
-	x += b << 14
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 14
-
-	b = uint64(buf[i])
-	i++
-	x += b << 21
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 21
-
-	b = uint64(buf[i])
-	i++
-	x += b << 28
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 28
-
-	b = uint64(buf[i])
-	i++
-	x += b << 35
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 35
-
-	b = uint64(buf[i])
-	i++
-	x += b << 42
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 42
-
-	b = uint64(buf[i])
-	i++
-	x += b << 49
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 49
-
-	b = uint64(buf[i])
-	i++
-	x += b << 56
-	if b&0x80 == 0 {
-		goto done
-	}
-	x -= 0x80 << 56
-
-	b = uint64(buf[i])
-	i++
-	x += b << 63
-	if b&0x80 == 0 {
-		goto done
-	}
-	// x -= 0x80 << 63 // Always zero.
-
-	return 0, errOverflow
-
-done:
-	p.index = i
-	return x, nil
-}
-
-// DecodeFixed64 reads a 64-bit integer from the Buffer.
-// This is the format for the
-// fixed64, sfixed64, and double protocol buffer types.
-func (p *Buffer) DecodeFixed64() (x uint64, err error) {
-	// x, err already 0
-	i := p.index + 8
-	if i < 0 || i > len(p.buf) {
-		err = io.ErrUnexpectedEOF
-		return
-	}
-	p.index = i
-
-	x = uint64(p.buf[i-8])
-	x |= uint64(p.buf[i-7]) << 8
-	x |= uint64(p.buf[i-6]) << 16
-	x |= uint64(p.buf[i-5]) << 24
-	x |= uint64(p.buf[i-4]) << 32
-	x |= uint64(p.buf[i-3]) << 40
-	x |= uint64(p.buf[i-2]) << 48
-	x |= uint64(p.buf[i-1]) << 56
-	return
-}
-
-// DecodeFixed32 reads a 32-bit integer from the Buffer.
-// This is the format for the
-// fixed32, sfixed32, and float protocol buffer types.
-func (p *Buffer) DecodeFixed32() (x uint64, err error) {
-	// x, err already 0
-	i := p.index + 4
-	if i < 0 || i > len(p.buf) {
-		err = io.ErrUnexpectedEOF
-		return
-	}
-	p.index = i
-
-	x = uint64(p.buf[i-4])
-	x |= uint64(p.buf[i-3]) << 8
-	x |= uint64(p.buf[i-2]) << 16
-	x |= uint64(p.buf[i-1]) << 24
-	return
-}
-
-// DecodeZigzag64 reads a zigzag-encoded 64-bit integer
-// from the Buffer.
-// This is the format used for the sint64 protocol buffer type.
-func (p *Buffer) DecodeZigzag64() (x uint64, err error) {
-	x, err = p.DecodeVarint()
-	if err != nil {
-		return
-	}
-	x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63)
-	return
-}
-
-// DecodeZigzag32 reads a zigzag-encoded 32-bit integer
-// from  the Buffer.
-// This is the format used for the sint32 protocol buffer type.
-func (p *Buffer) DecodeZigzag32() (x uint64, err error) {
-	x, err = p.DecodeVarint()
-	if err != nil {
-		return
-	}
-	x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31))
-	return
-}
-
-// These are not ValueDecoders: they produce an array of bytes or a string.
-// bytes, embedded messages
-
-// DecodeRawBytes reads a count-delimited byte buffer from the Buffer.
-// This is the format used for the bytes protocol buffer
-// type and for embedded messages.
-func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) {
-	n, err := p.DecodeVarint()
-	if err != nil {
-		return nil, err
-	}
-
-	nb := int(n)
-	if nb < 0 {
-		return nil, fmt.Errorf("proto: bad byte length %d", nb)
-	}
-	end := p.index + nb
-	if end < p.index || end > len(p.buf) {
-		return nil, io.ErrUnexpectedEOF
-	}
-
-	if !alloc {
-		// todo: check if can get more uses of alloc=false
-		buf = p.buf[p.index:end]
-		p.index += nb
-		return
-	}
-
-	buf = make([]byte, nb)
-	copy(buf, p.buf[p.index:])
-	p.index += nb
-	return
-}
-
-// DecodeStringBytes reads an encoded string from the Buffer.
-// This is the format used for the proto2 string type.
-func (p *Buffer) DecodeStringBytes() (s string, err error) {
-	buf, err := p.DecodeRawBytes(false)
-	if err != nil {
-		return
-	}
-	return string(buf), nil
-}
-
-// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
-// If the protocol buffer has extensions, and the field matches, add it as an extension.
-// Otherwise, if the XXX_unrecognized field exists, append the skipped data there.
-func (o *Buffer) skipAndSave(t reflect.Type, tag, wire int, base structPointer, unrecField field) error {
-	oi := o.index
-
-	err := o.skip(t, tag, wire)
-	if err != nil {
-		return err
-	}
-
-	if !unrecField.IsValid() {
-		return nil
-	}
-
-	ptr := structPointer_Bytes(base, unrecField)
-
-	// Add the skipped field to struct field
-	obuf := o.buf
-
-	o.buf = *ptr
-	o.EncodeVarint(uint64(tag<<3 | wire))
-	*ptr = append(o.buf, obuf[oi:o.index]...)
-
-	o.buf = obuf
-
-	return nil
-}
-
-// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
-func (o *Buffer) skip(t reflect.Type, tag, wire int) error {
-
-	var u uint64
-	var err error
-
-	switch wire {
-	case WireVarint:
-		_, err = o.DecodeVarint()
-	case WireFixed64:
-		_, err = o.DecodeFixed64()
-	case WireBytes:
-		_, err = o.DecodeRawBytes(false)
-	case WireFixed32:
-		_, err = o.DecodeFixed32()
-	case WireStartGroup:
-		for {
-			u, err = o.DecodeVarint()
-			if err != nil {
-				break
-			}
-			fwire := int(u & 0x7)
-			if fwire == WireEndGroup {
-				break
-			}
-			ftag := int(u >> 3)
-			err = o.skip(t, ftag, fwire)
-			if err != nil {
-				break
-			}
-		}
-	default:
-		err = fmt.Errorf("proto: can't skip unknown wire type %d for %s", wire, t)
-	}
-	return err
-}
-
-// Unmarshaler is the interface representing objects that can
-// unmarshal themselves.  The method should reset the receiver before
-// decoding starts.  The argument points to data that may be
-// overwritten, so implementations should not keep references to the
-// buffer.
-type Unmarshaler interface {
-	Unmarshal([]byte) error
-}
-
-// Unmarshal parses the protocol buffer representation in buf and places the
-// decoded result in pb.  If the struct underlying pb does not match
-// the data in buf, the results can be unpredictable.
-//
-// Unmarshal resets pb before starting to unmarshal, so any
-// existing data in pb is always removed. Use UnmarshalMerge
-// to preserve and append to existing data.
-func Unmarshal(buf []byte, pb Message) error {
-	pb.Reset()
-	return UnmarshalMerge(buf, pb)
-}
-
-// UnmarshalMerge parses the protocol buffer representation in buf and
-// writes the decoded result to pb.  If the struct underlying pb does not match
-// the data in buf, the results can be unpredictable.
-//
-// UnmarshalMerge merges into existing data in pb.
-// Most code should use Unmarshal instead.
-func UnmarshalMerge(buf []byte, pb Message) error {
-	// If the object can unmarshal itself, let it.
-	if u, ok := pb.(Unmarshaler); ok {
-		return u.Unmarshal(buf)
-	}
-	return NewBuffer(buf).Unmarshal(pb)
-}
-
-// DecodeMessage reads a count-delimited message from the Buffer.
-func (p *Buffer) DecodeMessage(pb Message) error {
-	enc, err := p.DecodeRawBytes(false)
-	if err != nil {
-		return err
-	}
-	return NewBuffer(enc).Unmarshal(pb)
-}
-
-// DecodeGroup reads a tag-delimited group from the Buffer.
-func (p *Buffer) DecodeGroup(pb Message) error {
-	typ, base, err := getbase(pb)
-	if err != nil {
-		return err
-	}
-	return p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), true, base)
-}
-
-// Unmarshal parses the protocol buffer representation in the
-// Buffer and places the decoded result in pb.  If the struct
-// underlying pb does not match the data in the buffer, the results can be
-// unpredictable.
-//
-// Unlike proto.Unmarshal, this does not reset pb before starting to unmarshal.
-func (p *Buffer) Unmarshal(pb Message) error {
-	// If the object can unmarshal itself, let it.
-	if u, ok := pb.(Unmarshaler); ok {
-		err := u.Unmarshal(p.buf[p.index:])
-		p.index = len(p.buf)
-		return err
-	}
-
-	typ, base, err := getbase(pb)
-	if err != nil {
-		return err
-	}
-
-	err = p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), false, base)
-
-	if collectStats {
-		stats.Decode++
-	}
-
-	return err
-}
-
-// unmarshalType does the work of unmarshaling a structure.
-func (o *Buffer) unmarshalType(st reflect.Type, prop *StructProperties, is_group bool, base structPointer) error {
-	var state errorState
-	required, reqFields := prop.reqCount, uint64(0)
-
-	var err error
-	for err == nil && o.index < len(o.buf) {
-		oi := o.index
-		var u uint64
-		u, err = o.DecodeVarint()
-		if err != nil {
-			break
-		}
-		wire := int(u & 0x7)
-		if wire == WireEndGroup {
-			if is_group {
-				if required > 0 {
-					// Not enough information to determine the exact field.
-					// (See below.)
-					return &RequiredNotSetError{"{Unknown}"}
-				}
-				return nil // input is satisfied
-			}
-			return fmt.Errorf("proto: %s: wiretype end group for non-group", st)
-		}
-		tag := int(u >> 3)
-		if tag <= 0 {
-			return fmt.Errorf("proto: %s: illegal tag %d (wire type %d)", st, tag, wire)
-		}
-		fieldnum, ok := prop.decoderTags.get(tag)
-		if !ok {
-			// Maybe it's an extension?
-			if prop.extendable {
-				if e, _ := extendable(structPointer_Interface(base, st)); isExtensionField(e, int32(tag)) {
-					if err = o.skip(st, tag, wire); err == nil {
-						extmap := e.extensionsWrite()
-						ext := extmap[int32(tag)] // may be missing
-						ext.enc = append(ext.enc, o.buf[oi:o.index]...)
-						extmap[int32(tag)] = ext
-					}
-					continue
-				}
-			}
-			// Maybe it's a oneof?
-			if prop.oneofUnmarshaler != nil {
-				m := structPointer_Interface(base, st).(Message)
-				// First return value indicates whether tag is a oneof field.
-				ok, err = prop.oneofUnmarshaler(m, tag, wire, o)
-				if err == ErrInternalBadWireType {
-					// Map the error to something more descriptive.
-					// Do the formatting here to save generated code space.
-					err = fmt.Errorf("bad wiretype for oneof field in %T", m)
-				}
-				if ok {
-					continue
-				}
-			}
-			err = o.skipAndSave(st, tag, wire, base, prop.unrecField)
-			continue
-		}
-		p := prop.Prop[fieldnum]
-
-		if p.dec == nil {
-			fmt.Fprintf(os.Stderr, "proto: no protobuf decoder for %s.%s\n", st, st.Field(fieldnum).Name)
-			continue
-		}
-		dec := p.dec
-		if wire != WireStartGroup && wire != p.WireType {
-			if wire == WireBytes && p.packedDec != nil {
-				// a packable field
-				dec = p.packedDec
-			} else {
-				err = fmt.Errorf("proto: bad wiretype for field %s.%s: got wiretype %d, want %d", st, st.Field(fieldnum).Name, wire, p.WireType)
-				continue
-			}
-		}
-		decErr := dec(o, p, base)
-		if decErr != nil && !state.shouldContinue(decErr, p) {
-			err = decErr
-		}
-		if err == nil && p.Required {
-			// Successfully decoded a required field.
-			if tag <= 64 {
-				// use bitmap for fields 1-64 to catch field reuse.
-				var mask uint64 = 1 << uint64(tag-1)
-				if reqFields&mask == 0 {
-					// new required field
-					reqFields |= mask
-					required--
-				}
-			} else {
-				// This is imprecise. It can be fooled by a required field
-				// with a tag > 64 that is encoded twice; that's very rare.
-				// A fully correct implementation would require allocating
-				// a data structure, which we would like to avoid.
-				required--
-			}
-		}
-	}
-	if err == nil {
-		if is_group {
-			return io.ErrUnexpectedEOF
-		}
-		if state.err != nil {
-			return state.err
-		}
-		if required > 0 {
-			// Not enough information to determine the exact field. If we use extra
-			// CPU, we could determine the field only if the missing required field
-			// has a tag <= 64 and we check reqFields.
-			return &RequiredNotSetError{"{Unknown}"}
-		}
-	}
-	return err
-}
-
-// Individual type decoders
-// For each,
-//	u is the decoded value,
-//	v is a pointer to the field (pointer) in the struct
-
-// Sizes of the pools to allocate inside the Buffer.
-// The goal is modest amortization and allocation
-// on at least 16-byte boundaries.
-const (
-	boolPoolSize   = 16
-	uint32PoolSize = 8
-	uint64PoolSize = 4
-)
-
-// Decode a bool.
-func (o *Buffer) dec_bool(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	if len(o.bools) == 0 {
-		o.bools = make([]bool, boolPoolSize)
-	}
-	o.bools[0] = u != 0
-	*structPointer_Bool(base, p.field) = &o.bools[0]
-	o.bools = o.bools[1:]
-	return nil
-}
-
-func (o *Buffer) dec_proto3_bool(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	*structPointer_BoolVal(base, p.field) = u != 0
-	return nil
-}
-
-// Decode an int32.
-func (o *Buffer) dec_int32(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	word32_Set(structPointer_Word32(base, p.field), o, uint32(u))
-	return nil
-}
-
-func (o *Buffer) dec_proto3_int32(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	word32Val_Set(structPointer_Word32Val(base, p.field), uint32(u))
-	return nil
-}
-
-// Decode an int64.
-func (o *Buffer) dec_int64(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	word64_Set(structPointer_Word64(base, p.field), o, u)
-	return nil
-}
-
-func (o *Buffer) dec_proto3_int64(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	word64Val_Set(structPointer_Word64Val(base, p.field), o, u)
-	return nil
-}
-
-// Decode a string.
-func (o *Buffer) dec_string(p *Properties, base structPointer) error {
-	s, err := o.DecodeStringBytes()
-	if err != nil {
-		return err
-	}
-	*structPointer_String(base, p.field) = &s
-	return nil
-}
-
-func (o *Buffer) dec_proto3_string(p *Properties, base structPointer) error {
-	s, err := o.DecodeStringBytes()
-	if err != nil {
-		return err
-	}
-	*structPointer_StringVal(base, p.field) = s
-	return nil
-}
-
-// Decode a slice of bytes ([]byte).
-func (o *Buffer) dec_slice_byte(p *Properties, base structPointer) error {
-	b, err := o.DecodeRawBytes(true)
-	if err != nil {
-		return err
-	}
-	*structPointer_Bytes(base, p.field) = b
-	return nil
-}
-
-// Decode a slice of bools ([]bool).
-func (o *Buffer) dec_slice_bool(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	v := structPointer_BoolSlice(base, p.field)
-	*v = append(*v, u != 0)
-	return nil
-}
-
-// Decode a slice of bools ([]bool) in packed format.
-func (o *Buffer) dec_slice_packed_bool(p *Properties, base structPointer) error {
-	v := structPointer_BoolSlice(base, p.field)
-
-	nn, err := o.DecodeVarint()
-	if err != nil {
-		return err
-	}
-	nb := int(nn) // number of bytes of encoded bools
-	fin := o.index + nb
-	if fin < o.index {
-		return errOverflow
-	}
-
-	y := *v
-	for o.index < fin {
-		u, err := p.valDec(o)
-		if err != nil {
-			return err
-		}
-		y = append(y, u != 0)
-	}
-
-	*v = y
-	return nil
-}
-
-// Decode a slice of int32s ([]int32).
-func (o *Buffer) dec_slice_int32(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-	structPointer_Word32Slice(base, p.field).Append(uint32(u))
-	return nil
-}
-
-// Decode a slice of int32s ([]int32) in packed format.
-func (o *Buffer) dec_slice_packed_int32(p *Properties, base structPointer) error {
-	v := structPointer_Word32Slice(base, p.field)
-
-	nn, err := o.DecodeVarint()
-	if err != nil {
-		return err
-	}
-	nb := int(nn) // number of bytes of encoded int32s
-
-	fin := o.index + nb
-	if fin < o.index {
-		return errOverflow
-	}
-	for o.index < fin {
-		u, err := p.valDec(o)
-		if err != nil {
-			return err
-		}
-		v.Append(uint32(u))
-	}
-	return nil
-}
-
-// Decode a slice of int64s ([]int64).
-func (o *Buffer) dec_slice_int64(p *Properties, base structPointer) error {
-	u, err := p.valDec(o)
-	if err != nil {
-		return err
-	}
-
-	structPointer_Word64Slice(base, p.field).Append(u)
-	return nil
-}
-
-// Decode a slice of int64s ([]int64) in packed format.
-func (o *Buffer) dec_slice_packed_int64(p *Properties, base structPointer) error {
-	v := structPointer_Word64Slice(base, p.field)
-
-	nn, err := o.DecodeVarint()
-	if err != nil {
-		return err
-	}
-	nb := int(nn) // number of bytes of encoded int64s
-
-	fin := o.index + nb
-	if fin < o.index {
-		return errOverflow
-	}
-	for o.index < fin {
-		u, err := p.valDec(o)
-		if err != nil {
-			return err
-		}
-		v.Append(u)
-	}
-	return nil
-}
-
-// Decode a slice of strings ([]string).
-func (o *Buffer) dec_slice_string(p *Properties, base structPointer) error {
-	s, err := o.DecodeStringBytes()
-	if err != nil {
-		return err
-	}
-	v := structPointer_StringSlice(base, p.field)
-	*v = append(*v, s)
-	return nil
-}
-
-// Decode a slice of slice of bytes ([][]byte).
-func (o *Buffer) dec_slice_slice_byte(p *Properties, base structPointer) error {
-	b, err := o.DecodeRawBytes(true)
-	if err != nil {
-		return err
-	}
-	v := structPointer_BytesSlice(base, p.field)
-	*v = append(*v, b)
-	return nil
-}
-
-// Decode a map field.
-func (o *Buffer) dec_new_map(p *Properties, base structPointer) error {
-	raw, err := o.DecodeRawBytes(false)
-	if err != nil {
-		return err
-	}
-	oi := o.index       // index at the end of this map entry
-	o.index -= len(raw) // move buffer back to start of map entry
-
-	mptr := structPointer_NewAt(base, p.field, p.mtype) // *map[K]V
-	if mptr.Elem().IsNil() {
-		mptr.Elem().Set(reflect.MakeMap(mptr.Type().Elem()))
-	}
-	v := mptr.Elem() // map[K]V
-
-	// Prepare addressable doubly-indirect placeholders for the key and value types.
-	// See enc_new_map for why.
-	keyptr := reflect.New(reflect.PtrTo(p.mtype.Key())).Elem() // addressable *K
-	keybase := toStructPointer(keyptr.Addr())                  // **K
-
-	var valbase structPointer
-	var valptr reflect.Value
-	switch p.mtype.Elem().Kind() {
-	case reflect.Slice:
-		// []byte
-		var dummy []byte
-		valptr = reflect.ValueOf(&dummy)  // *[]byte
-		valbase = toStructPointer(valptr) // *[]byte
-	case reflect.Ptr:
-		// message; valptr is **Msg; need to allocate the intermediate pointer
-		valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
-		valptr.Set(reflect.New(valptr.Type().Elem()))
-		valbase = toStructPointer(valptr)
-	default:
-		// everything else
-		valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
-		valbase = toStructPointer(valptr.Addr())                   // **V
-	}
-
-	// Decode.
-	// This parses a restricted wire format, namely the encoding of a message
-	// with two fields. See enc_new_map for the format.
-	for o.index < oi {
-		// tagcode for key and value properties are always a single byte
-		// because they have tags 1 and 2.
-		tagcode := o.buf[o.index]
-		o.index++
-		switch tagcode {
-		case p.mkeyprop.tagcode[0]:
-			if err := p.mkeyprop.dec(o, p.mkeyprop, keybase); err != nil {
-				return err
-			}
-		case p.mvalprop.tagcode[0]:
-			if err := p.mvalprop.dec(o, p.mvalprop, valbase); err != nil {
-				return err
-			}
-		default:
-			// TODO: Should we silently skip this instead?
-			return fmt.Errorf("proto: bad map data tag %d", raw[0])
-		}
-	}
-	keyelem, valelem := keyptr.Elem(), valptr.Elem()
-	if !keyelem.IsValid() {
-		keyelem = reflect.Zero(p.mtype.Key())
-	}
-	if !valelem.IsValid() {
-		valelem = reflect.Zero(p.mtype.Elem())
-	}
-
-	v.SetMapIndex(keyelem, valelem)
-	return nil
-}
-
-// Decode a group.
-func (o *Buffer) dec_struct_group(p *Properties, base structPointer) error {
-	bas := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(bas) {
-		// allocate new nested message
-		bas = toStructPointer(reflect.New(p.stype))
-		structPointer_SetStructPointer(base, p.field, bas)
-	}
-	return o.unmarshalType(p.stype, p.sprop, true, bas)
-}
-
-// Decode an embedded message.
-func (o *Buffer) dec_struct_message(p *Properties, base structPointer) (err error) {
-	raw, e := o.DecodeRawBytes(false)
-	if e != nil {
-		return e
-	}
-
-	bas := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(bas) {
-		// allocate new nested message
-		bas = toStructPointer(reflect.New(p.stype))
-		structPointer_SetStructPointer(base, p.field, bas)
-	}
-
-	// If the object can unmarshal itself, let it.
-	if p.isUnmarshaler {
-		iv := structPointer_Interface(bas, p.stype)
-		return iv.(Unmarshaler).Unmarshal(raw)
-	}
-
-	obuf := o.buf
-	oi := o.index
-	o.buf = raw
-	o.index = 0
-
-	err = o.unmarshalType(p.stype, p.sprop, false, bas)
-	o.buf = obuf
-	o.index = oi
-
-	return err
-}
-
-// Decode a slice of embedded messages.
-func (o *Buffer) dec_slice_struct_message(p *Properties, base structPointer) error {
-	return o.dec_slice_struct(p, false, base)
-}
-
-// Decode a slice of embedded groups.
-func (o *Buffer) dec_slice_struct_group(p *Properties, base structPointer) error {
-	return o.dec_slice_struct(p, true, base)
-}
-
-// Decode a slice of structs ([]*struct).
-func (o *Buffer) dec_slice_struct(p *Properties, is_group bool, base structPointer) error {
-	v := reflect.New(p.stype)
-	bas := toStructPointer(v)
-	structPointer_StructPointerSlice(base, p.field).Append(bas)
-
-	if is_group {
-		err := o.unmarshalType(p.stype, p.sprop, is_group, bas)
-		return err
-	}
-
-	raw, err := o.DecodeRawBytes(false)
-	if err != nil {
-		return err
-	}
-
-	// If the object can unmarshal itself, let it.
-	if p.isUnmarshaler {
-		iv := v.Interface()
-		return iv.(Unmarshaler).Unmarshal(raw)
-	}
-
-	obuf := o.buf
-	oi := o.index
-	o.buf = raw
-	o.index = 0
-
-	err = o.unmarshalType(p.stype, p.sprop, is_group, bas)
-
-	o.buf = obuf
-	o.index = oi
-
-	return err
-}
diff --git a/vendor/github.com/golang/protobuf/proto/encode.go b/vendor/github.com/golang/protobuf/proto/encode.go
deleted file mode 100644
index 2b30f846..00000000
--- a/vendor/github.com/golang/protobuf/proto/encode.go
+++ /dev/null
@@ -1,1362 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-/*
- * Routines for encoding data into the wire format for protocol buffers.
- */
-
-import (
-	"errors"
-	"fmt"
-	"reflect"
-	"sort"
-)
-
-// RequiredNotSetError is the error returned if Marshal is called with
-// a protocol buffer struct whose required fields have not
-// all been initialized. It is also the error returned if Unmarshal is
-// called with an encoded protocol buffer that does not include all the
-// required fields.
-//
-// When printed, RequiredNotSetError reports the first unset required field in a
-// message. If the field cannot be precisely determined, it is reported as
-// "{Unknown}".
-type RequiredNotSetError struct {
-	field string
-}
-
-func (e *RequiredNotSetError) Error() string {
-	return fmt.Sprintf("proto: required field %q not set", e.field)
-}
-
-var (
-	// errRepeatedHasNil is the error returned if Marshal is called with
-	// a struct with a repeated field containing a nil element.
-	errRepeatedHasNil = errors.New("proto: repeated field has nil element")
-
-	// errOneofHasNil is the error returned if Marshal is called with
-	// a struct with a oneof field containing a nil element.
-	errOneofHasNil = errors.New("proto: oneof field has nil value")
-
-	// ErrNil is the error returned if Marshal is called with nil.
-	ErrNil = errors.New("proto: Marshal called with nil")
-
-	// ErrTooLarge is the error returned if Marshal is called with a
-	// message that encodes to >2GB.
-	ErrTooLarge = errors.New("proto: message encodes to over 2 GB")
-)
-
-// The fundamental encoders that put bytes on the wire.
-// Those that take integer types all accept uint64 and are
-// therefore of type valueEncoder.
-
-const maxVarintBytes = 10 // maximum length of a varint
-
-// maxMarshalSize is the largest allowed size of an encoded protobuf,
-// since C++ and Java use signed int32s for the size.
-const maxMarshalSize = 1<<31 - 1
-
-// EncodeVarint returns the varint encoding of x.
-// This is the format for the
-// int32, int64, uint32, uint64, bool, and enum
-// protocol buffer types.
-// Not used by the package itself, but helpful to clients
-// wishing to use the same encoding.
-func EncodeVarint(x uint64) []byte {
-	var buf [maxVarintBytes]byte
-	var n int
-	for n = 0; x > 127; n++ {
-		buf[n] = 0x80 | uint8(x&0x7F)
-		x >>= 7
-	}
-	buf[n] = uint8(x)
-	n++
-	return buf[0:n]
-}
-
-// EncodeVarint writes a varint-encoded integer to the Buffer.
-// This is the format for the
-// int32, int64, uint32, uint64, bool, and enum
-// protocol buffer types.
-func (p *Buffer) EncodeVarint(x uint64) error {
-	for x >= 1<<7 {
-		p.buf = append(p.buf, uint8(x&0x7f|0x80))
-		x >>= 7
-	}
-	p.buf = append(p.buf, uint8(x))
-	return nil
-}
-
-// SizeVarint returns the varint encoding size of an integer.
-func SizeVarint(x uint64) int {
-	return sizeVarint(x)
-}
-
-func sizeVarint(x uint64) (n int) {
-	for {
-		n++
-		x >>= 7
-		if x == 0 {
-			break
-		}
-	}
-	return n
-}
-
-// EncodeFixed64 writes a 64-bit integer to the Buffer.
-// This is the format for the
-// fixed64, sfixed64, and double protocol buffer types.
-func (p *Buffer) EncodeFixed64(x uint64) error {
-	p.buf = append(p.buf,
-		uint8(x),
-		uint8(x>>8),
-		uint8(x>>16),
-		uint8(x>>24),
-		uint8(x>>32),
-		uint8(x>>40),
-		uint8(x>>48),
-		uint8(x>>56))
-	return nil
-}
-
-func sizeFixed64(x uint64) int {
-	return 8
-}
-
-// EncodeFixed32 writes a 32-bit integer to the Buffer.
-// This is the format for the
-// fixed32, sfixed32, and float protocol buffer types.
-func (p *Buffer) EncodeFixed32(x uint64) error {
-	p.buf = append(p.buf,
-		uint8(x),
-		uint8(x>>8),
-		uint8(x>>16),
-		uint8(x>>24))
-	return nil
-}
-
-func sizeFixed32(x uint64) int {
-	return 4
-}
-
-// EncodeZigzag64 writes a zigzag-encoded 64-bit integer
-// to the Buffer.
-// This is the format used for the sint64 protocol buffer type.
-func (p *Buffer) EncodeZigzag64(x uint64) error {
-	// use signed number to get arithmetic right shift.
-	return p.EncodeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63))))
-}
-
-func sizeZigzag64(x uint64) int {
-	return sizeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63))))
-}
-
-// EncodeZigzag32 writes a zigzag-encoded 32-bit integer
-// to the Buffer.
-// This is the format used for the sint32 protocol buffer type.
-func (p *Buffer) EncodeZigzag32(x uint64) error {
-	// use signed number to get arithmetic right shift.
-	return p.EncodeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31))))
-}
-
-func sizeZigzag32(x uint64) int {
-	return sizeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31))))
-}
-
-// EncodeRawBytes writes a count-delimited byte buffer to the Buffer.
-// This is the format used for the bytes protocol buffer
-// type and for embedded messages.
-func (p *Buffer) EncodeRawBytes(b []byte) error {
-	p.EncodeVarint(uint64(len(b)))
-	p.buf = append(p.buf, b...)
-	return nil
-}
-
-func sizeRawBytes(b []byte) int {
-	return sizeVarint(uint64(len(b))) +
-		len(b)
-}
-
-// EncodeStringBytes writes an encoded string to the Buffer.
-// This is the format used for the proto2 string type.
-func (p *Buffer) EncodeStringBytes(s string) error {
-	p.EncodeVarint(uint64(len(s)))
-	p.buf = append(p.buf, s...)
-	return nil
-}
-
-func sizeStringBytes(s string) int {
-	return sizeVarint(uint64(len(s))) +
-		len(s)
-}
-
-// Marshaler is the interface representing objects that can marshal themselves.
-type Marshaler interface {
-	Marshal() ([]byte, error)
-}
-
-// Marshal takes the protocol buffer
-// and encodes it into the wire format, returning the data.
-func Marshal(pb Message) ([]byte, error) {
-	// Can the object marshal itself?
-	if m, ok := pb.(Marshaler); ok {
-		return m.Marshal()
-	}
-	p := NewBuffer(nil)
-	err := p.Marshal(pb)
-	if p.buf == nil && err == nil {
-		// Return a non-nil slice on success.
-		return []byte{}, nil
-	}
-	return p.buf, err
-}
-
-// EncodeMessage writes the protocol buffer to the Buffer,
-// prefixed by a varint-encoded length.
-func (p *Buffer) EncodeMessage(pb Message) error {
-	t, base, err := getbase(pb)
-	if structPointer_IsNil(base) {
-		return ErrNil
-	}
-	if err == nil {
-		var state errorState
-		err = p.enc_len_struct(GetProperties(t.Elem()), base, &state)
-	}
-	return err
-}
-
-// Marshal takes the protocol buffer
-// and encodes it into the wire format, writing the result to the
-// Buffer.
-func (p *Buffer) Marshal(pb Message) error {
-	// Can the object marshal itself?
-	if m, ok := pb.(Marshaler); ok {
-		data, err := m.Marshal()
-		p.buf = append(p.buf, data...)
-		return err
-	}
-
-	t, base, err := getbase(pb)
-	if structPointer_IsNil(base) {
-		return ErrNil
-	}
-	if err == nil {
-		err = p.enc_struct(GetProperties(t.Elem()), base)
-	}
-
-	if collectStats {
-		(stats).Encode++ // Parens are to work around a goimports bug.
-	}
-
-	if len(p.buf) > maxMarshalSize {
-		return ErrTooLarge
-	}
-	return err
-}
-
-// Size returns the encoded size of a protocol buffer.
-func Size(pb Message) (n int) {
-	// Can the object marshal itself?  If so, Size is slow.
-	// TODO: add Size to Marshaler, or add a Sizer interface.
-	if m, ok := pb.(Marshaler); ok {
-		b, _ := m.Marshal()
-		return len(b)
-	}
-
-	t, base, err := getbase(pb)
-	if structPointer_IsNil(base) {
-		return 0
-	}
-	if err == nil {
-		n = size_struct(GetProperties(t.Elem()), base)
-	}
-
-	if collectStats {
-		(stats).Size++ // Parens are to work around a goimports bug.
-	}
-
-	return
-}
-
-// Individual type encoders.
-
-// Encode a bool.
-func (o *Buffer) enc_bool(p *Properties, base structPointer) error {
-	v := *structPointer_Bool(base, p.field)
-	if v == nil {
-		return ErrNil
-	}
-	x := 0
-	if *v {
-		x = 1
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, uint64(x))
-	return nil
-}
-
-func (o *Buffer) enc_proto3_bool(p *Properties, base structPointer) error {
-	v := *structPointer_BoolVal(base, p.field)
-	if !v {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, 1)
-	return nil
-}
-
-func size_bool(p *Properties, base structPointer) int {
-	v := *structPointer_Bool(base, p.field)
-	if v == nil {
-		return 0
-	}
-	return len(p.tagcode) + 1 // each bool takes exactly one byte
-}
-
-func size_proto3_bool(p *Properties, base structPointer) int {
-	v := *structPointer_BoolVal(base, p.field)
-	if !v && !p.oneof {
-		return 0
-	}
-	return len(p.tagcode) + 1 // each bool takes exactly one byte
-}
-
-// Encode an int32.
-func (o *Buffer) enc_int32(p *Properties, base structPointer) error {
-	v := structPointer_Word32(base, p.field)
-	if word32_IsNil(v) {
-		return ErrNil
-	}
-	x := int32(word32_Get(v)) // permit sign extension to use full 64-bit range
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, uint64(x))
-	return nil
-}
-
-func (o *Buffer) enc_proto3_int32(p *Properties, base structPointer) error {
-	v := structPointer_Word32Val(base, p.field)
-	x := int32(word32Val_Get(v)) // permit sign extension to use full 64-bit range
-	if x == 0 {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, uint64(x))
-	return nil
-}
-
-func size_int32(p *Properties, base structPointer) (n int) {
-	v := structPointer_Word32(base, p.field)
-	if word32_IsNil(v) {
-		return 0
-	}
-	x := int32(word32_Get(v)) // permit sign extension to use full 64-bit range
-	n += len(p.tagcode)
-	n += p.valSize(uint64(x))
-	return
-}
-
-func size_proto3_int32(p *Properties, base structPointer) (n int) {
-	v := structPointer_Word32Val(base, p.field)
-	x := int32(word32Val_Get(v)) // permit sign extension to use full 64-bit range
-	if x == 0 && !p.oneof {
-		return 0
-	}
-	n += len(p.tagcode)
-	n += p.valSize(uint64(x))
-	return
-}
-
-// Encode a uint32.
-// Exactly the same as int32, except for no sign extension.
-func (o *Buffer) enc_uint32(p *Properties, base structPointer) error {
-	v := structPointer_Word32(base, p.field)
-	if word32_IsNil(v) {
-		return ErrNil
-	}
-	x := word32_Get(v)
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, uint64(x))
-	return nil
-}
-
-func (o *Buffer) enc_proto3_uint32(p *Properties, base structPointer) error {
-	v := structPointer_Word32Val(base, p.field)
-	x := word32Val_Get(v)
-	if x == 0 {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, uint64(x))
-	return nil
-}
-
-func size_uint32(p *Properties, base structPointer) (n int) {
-	v := structPointer_Word32(base, p.field)
-	if word32_IsNil(v) {
-		return 0
-	}
-	x := word32_Get(v)
-	n += len(p.tagcode)
-	n += p.valSize(uint64(x))
-	return
-}
-
-func size_proto3_uint32(p *Properties, base structPointer) (n int) {
-	v := structPointer_Word32Val(base, p.field)
-	x := word32Val_Get(v)
-	if x == 0 && !p.oneof {
-		return 0
-	}
-	n += len(p.tagcode)
-	n += p.valSize(uint64(x))
-	return
-}
-
-// Encode an int64.
-func (o *Buffer) enc_int64(p *Properties, base structPointer) error {
-	v := structPointer_Word64(base, p.field)
-	if word64_IsNil(v) {
-		return ErrNil
-	}
-	x := word64_Get(v)
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, x)
-	return nil
-}
-
-func (o *Buffer) enc_proto3_int64(p *Properties, base structPointer) error {
-	v := structPointer_Word64Val(base, p.field)
-	x := word64Val_Get(v)
-	if x == 0 {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	p.valEnc(o, x)
-	return nil
-}
-
-func size_int64(p *Properties, base structPointer) (n int) {
-	v := structPointer_Word64(base, p.field)
-	if word64_IsNil(v) {
-		return 0
-	}
-	x := word64_Get(v)
-	n += len(p.tagcode)
-	n += p.valSize(x)
-	return
-}
-
-func size_proto3_int64(p *Properties, base structPointer) (n int) {
-	v := structPointer_Word64Val(base, p.field)
-	x := word64Val_Get(v)
-	if x == 0 && !p.oneof {
-		return 0
-	}
-	n += len(p.tagcode)
-	n += p.valSize(x)
-	return
-}
-
-// Encode a string.
-func (o *Buffer) enc_string(p *Properties, base structPointer) error {
-	v := *structPointer_String(base, p.field)
-	if v == nil {
-		return ErrNil
-	}
-	x := *v
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeStringBytes(x)
-	return nil
-}
-
-func (o *Buffer) enc_proto3_string(p *Properties, base structPointer) error {
-	v := *structPointer_StringVal(base, p.field)
-	if v == "" {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeStringBytes(v)
-	return nil
-}
-
-func size_string(p *Properties, base structPointer) (n int) {
-	v := *structPointer_String(base, p.field)
-	if v == nil {
-		return 0
-	}
-	x := *v
-	n += len(p.tagcode)
-	n += sizeStringBytes(x)
-	return
-}
-
-func size_proto3_string(p *Properties, base structPointer) (n int) {
-	v := *structPointer_StringVal(base, p.field)
-	if v == "" && !p.oneof {
-		return 0
-	}
-	n += len(p.tagcode)
-	n += sizeStringBytes(v)
-	return
-}
-
-// All protocol buffer fields are nillable, but be careful.
-func isNil(v reflect.Value) bool {
-	switch v.Kind() {
-	case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
-		return v.IsNil()
-	}
-	return false
-}
-
-// Encode a message struct.
-func (o *Buffer) enc_struct_message(p *Properties, base structPointer) error {
-	var state errorState
-	structp := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(structp) {
-		return ErrNil
-	}
-
-	// Can the object marshal itself?
-	if p.isMarshaler {
-		m := structPointer_Interface(structp, p.stype).(Marshaler)
-		data, err := m.Marshal()
-		if err != nil && !state.shouldContinue(err, nil) {
-			return err
-		}
-		o.buf = append(o.buf, p.tagcode...)
-		o.EncodeRawBytes(data)
-		return state.err
-	}
-
-	o.buf = append(o.buf, p.tagcode...)
-	return o.enc_len_struct(p.sprop, structp, &state)
-}
-
-func size_struct_message(p *Properties, base structPointer) int {
-	structp := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(structp) {
-		return 0
-	}
-
-	// Can the object marshal itself?
-	if p.isMarshaler {
-		m := structPointer_Interface(structp, p.stype).(Marshaler)
-		data, _ := m.Marshal()
-		n0 := len(p.tagcode)
-		n1 := sizeRawBytes(data)
-		return n0 + n1
-	}
-
-	n0 := len(p.tagcode)
-	n1 := size_struct(p.sprop, structp)
-	n2 := sizeVarint(uint64(n1)) // size of encoded length
-	return n0 + n1 + n2
-}
-
-// Encode a group struct.
-func (o *Buffer) enc_struct_group(p *Properties, base structPointer) error {
-	var state errorState
-	b := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(b) {
-		return ErrNil
-	}
-
-	o.EncodeVarint(uint64((p.Tag << 3) | WireStartGroup))
-	err := o.enc_struct(p.sprop, b)
-	if err != nil && !state.shouldContinue(err, nil) {
-		return err
-	}
-	o.EncodeVarint(uint64((p.Tag << 3) | WireEndGroup))
-	return state.err
-}
-
-func size_struct_group(p *Properties, base structPointer) (n int) {
-	b := structPointer_GetStructPointer(base, p.field)
-	if structPointer_IsNil(b) {
-		return 0
-	}
-
-	n += sizeVarint(uint64((p.Tag << 3) | WireStartGroup))
-	n += size_struct(p.sprop, b)
-	n += sizeVarint(uint64((p.Tag << 3) | WireEndGroup))
-	return
-}
-
-// Encode a slice of bools ([]bool).
-func (o *Buffer) enc_slice_bool(p *Properties, base structPointer) error {
-	s := *structPointer_BoolSlice(base, p.field)
-	l := len(s)
-	if l == 0 {
-		return ErrNil
-	}
-	for _, x := range s {
-		o.buf = append(o.buf, p.tagcode...)
-		v := uint64(0)
-		if x {
-			v = 1
-		}
-		p.valEnc(o, v)
-	}
-	return nil
-}
-
-func size_slice_bool(p *Properties, base structPointer) int {
-	s := *structPointer_BoolSlice(base, p.field)
-	l := len(s)
-	if l == 0 {
-		return 0
-	}
-	return l * (len(p.tagcode) + 1) // each bool takes exactly one byte
-}
-
-// Encode a slice of bools ([]bool) in packed format.
-func (o *Buffer) enc_slice_packed_bool(p *Properties, base structPointer) error {
-	s := *structPointer_BoolSlice(base, p.field)
-	l := len(s)
-	if l == 0 {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeVarint(uint64(l)) // each bool takes exactly one byte
-	for _, x := range s {
-		v := uint64(0)
-		if x {
-			v = 1
-		}
-		p.valEnc(o, v)
-	}
-	return nil
-}
-
-func size_slice_packed_bool(p *Properties, base structPointer) (n int) {
-	s := *structPointer_BoolSlice(base, p.field)
-	l := len(s)
-	if l == 0 {
-		return 0
-	}
-	n += len(p.tagcode)
-	n += sizeVarint(uint64(l))
-	n += l // each bool takes exactly one byte
-	return
-}
-
-// Encode a slice of bytes ([]byte).
-func (o *Buffer) enc_slice_byte(p *Properties, base structPointer) error {
-	s := *structPointer_Bytes(base, p.field)
-	if s == nil {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeRawBytes(s)
-	return nil
-}
-
-func (o *Buffer) enc_proto3_slice_byte(p *Properties, base structPointer) error {
-	s := *structPointer_Bytes(base, p.field)
-	if len(s) == 0 {
-		return ErrNil
-	}
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeRawBytes(s)
-	return nil
-}
-
-func size_slice_byte(p *Properties, base structPointer) (n int) {
-	s := *structPointer_Bytes(base, p.field)
-	if s == nil && !p.oneof {
-		return 0
-	}
-	n += len(p.tagcode)
-	n += sizeRawBytes(s)
-	return
-}
-
-func size_proto3_slice_byte(p *Properties, base structPointer) (n int) {
-	s := *structPointer_Bytes(base, p.field)
-	if len(s) == 0 && !p.oneof {
-		return 0
-	}
-	n += len(p.tagcode)
-	n += sizeRawBytes(s)
-	return
-}
-
-// Encode a slice of int32s ([]int32).
-func (o *Buffer) enc_slice_int32(p *Properties, base structPointer) error {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return ErrNil
-	}
-	for i := 0; i < l; i++ {
-		o.buf = append(o.buf, p.tagcode...)
-		x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
-		p.valEnc(o, uint64(x))
-	}
-	return nil
-}
-
-func size_slice_int32(p *Properties, base structPointer) (n int) {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return 0
-	}
-	for i := 0; i < l; i++ {
-		n += len(p.tagcode)
-		x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
-		n += p.valSize(uint64(x))
-	}
-	return
-}
-
-// Encode a slice of int32s ([]int32) in packed format.
-func (o *Buffer) enc_slice_packed_int32(p *Properties, base structPointer) error {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return ErrNil
-	}
-	// TODO: Reuse a Buffer.
-	buf := NewBuffer(nil)
-	for i := 0; i < l; i++ {
-		x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
-		p.valEnc(buf, uint64(x))
-	}
-
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeVarint(uint64(len(buf.buf)))
-	o.buf = append(o.buf, buf.buf...)
-	return nil
-}
-
-func size_slice_packed_int32(p *Properties, base structPointer) (n int) {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return 0
-	}
-	var bufSize int
-	for i := 0; i < l; i++ {
-		x := int32(s.Index(i)) // permit sign extension to use full 64-bit range
-		bufSize += p.valSize(uint64(x))
-	}
-
-	n += len(p.tagcode)
-	n += sizeVarint(uint64(bufSize))
-	n += bufSize
-	return
-}
-
-// Encode a slice of uint32s ([]uint32).
-// Exactly the same as int32, except for no sign extension.
-func (o *Buffer) enc_slice_uint32(p *Properties, base structPointer) error {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return ErrNil
-	}
-	for i := 0; i < l; i++ {
-		o.buf = append(o.buf, p.tagcode...)
-		x := s.Index(i)
-		p.valEnc(o, uint64(x))
-	}
-	return nil
-}
-
-func size_slice_uint32(p *Properties, base structPointer) (n int) {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return 0
-	}
-	for i := 0; i < l; i++ {
-		n += len(p.tagcode)
-		x := s.Index(i)
-		n += p.valSize(uint64(x))
-	}
-	return
-}
-
-// Encode a slice of uint32s ([]uint32) in packed format.
-// Exactly the same as int32, except for no sign extension.
-func (o *Buffer) enc_slice_packed_uint32(p *Properties, base structPointer) error {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return ErrNil
-	}
-	// TODO: Reuse a Buffer.
-	buf := NewBuffer(nil)
-	for i := 0; i < l; i++ {
-		p.valEnc(buf, uint64(s.Index(i)))
-	}
-
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeVarint(uint64(len(buf.buf)))
-	o.buf = append(o.buf, buf.buf...)
-	return nil
-}
-
-func size_slice_packed_uint32(p *Properties, base structPointer) (n int) {
-	s := structPointer_Word32Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return 0
-	}
-	var bufSize int
-	for i := 0; i < l; i++ {
-		bufSize += p.valSize(uint64(s.Index(i)))
-	}
-
-	n += len(p.tagcode)
-	n += sizeVarint(uint64(bufSize))
-	n += bufSize
-	return
-}
-
-// Encode a slice of int64s ([]int64).
-func (o *Buffer) enc_slice_int64(p *Properties, base structPointer) error {
-	s := structPointer_Word64Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return ErrNil
-	}
-	for i := 0; i < l; i++ {
-		o.buf = append(o.buf, p.tagcode...)
-		p.valEnc(o, s.Index(i))
-	}
-	return nil
-}
-
-func size_slice_int64(p *Properties, base structPointer) (n int) {
-	s := structPointer_Word64Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return 0
-	}
-	for i := 0; i < l; i++ {
-		n += len(p.tagcode)
-		n += p.valSize(s.Index(i))
-	}
-	return
-}
-
-// Encode a slice of int64s ([]int64) in packed format.
-func (o *Buffer) enc_slice_packed_int64(p *Properties, base structPointer) error {
-	s := structPointer_Word64Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return ErrNil
-	}
-	// TODO: Reuse a Buffer.
-	buf := NewBuffer(nil)
-	for i := 0; i < l; i++ {
-		p.valEnc(buf, s.Index(i))
-	}
-
-	o.buf = append(o.buf, p.tagcode...)
-	o.EncodeVarint(uint64(len(buf.buf)))
-	o.buf = append(o.buf, buf.buf...)
-	return nil
-}
-
-func size_slice_packed_int64(p *Properties, base structPointer) (n int) {
-	s := structPointer_Word64Slice(base, p.field)
-	l := s.Len()
-	if l == 0 {
-		return 0
-	}
-	var bufSize int
-	for i := 0; i < l; i++ {
-		bufSize += p.valSize(s.Index(i))
-	}
-
-	n += len(p.tagcode)
-	n += sizeVarint(uint64(bufSize))
-	n += bufSize
-	return
-}
-
-// Encode a slice of slice of bytes ([][]byte).
-func (o *Buffer) enc_slice_slice_byte(p *Properties, base structPointer) error {
-	ss := *structPointer_BytesSlice(base, p.field)
-	l := len(ss)
-	if l == 0 {
-		return ErrNil
-	}
-	for i := 0; i < l; i++ {
-		o.buf = append(o.buf, p.tagcode...)
-		o.EncodeRawBytes(ss[i])
-	}
-	return nil
-}
-
-func size_slice_slice_byte(p *Properties, base structPointer) (n int) {
-	ss := *structPointer_BytesSlice(base, p.field)
-	l := len(ss)
-	if l == 0 {
-		return 0
-	}
-	n += l * len(p.tagcode)
-	for i := 0; i < l; i++ {
-		n += sizeRawBytes(ss[i])
-	}
-	return
-}
-
-// Encode a slice of strings ([]string).
-func (o *Buffer) enc_slice_string(p *Properties, base structPointer) error {
-	ss := *structPointer_StringSlice(base, p.field)
-	l := len(ss)
-	for i := 0; i < l; i++ {
-		o.buf = append(o.buf, p.tagcode...)
-		o.EncodeStringBytes(ss[i])
-	}
-	return nil
-}
-
-func size_slice_string(p *Properties, base structPointer) (n int) {
-	ss := *structPointer_StringSlice(base, p.field)
-	l := len(ss)
-	n += l * len(p.tagcode)
-	for i := 0; i < l; i++ {
-		n += sizeStringBytes(ss[i])
-	}
-	return
-}
-
-// Encode a slice of message structs ([]*struct).
-func (o *Buffer) enc_slice_struct_message(p *Properties, base structPointer) error {
-	var state errorState
-	s := structPointer_StructPointerSlice(base, p.field)
-	l := s.Len()
-
-	for i := 0; i < l; i++ {
-		structp := s.Index(i)
-		if structPointer_IsNil(structp) {
-			return errRepeatedHasNil
-		}
-
-		// Can the object marshal itself?
-		if p.isMarshaler {
-			m := structPointer_Interface(structp, p.stype).(Marshaler)
-			data, err := m.Marshal()
-			if err != nil && !state.shouldContinue(err, nil) {
-				return err
-			}
-			o.buf = append(o.buf, p.tagcode...)
-			o.EncodeRawBytes(data)
-			continue
-		}
-
-		o.buf = append(o.buf, p.tagcode...)
-		err := o.enc_len_struct(p.sprop, structp, &state)
-		if err != nil && !state.shouldContinue(err, nil) {
-			if err == ErrNil {
-				return errRepeatedHasNil
-			}
-			return err
-		}
-	}
-	return state.err
-}
-
-func size_slice_struct_message(p *Properties, base structPointer) (n int) {
-	s := structPointer_StructPointerSlice(base, p.field)
-	l := s.Len()
-	n += l * len(p.tagcode)
-	for i := 0; i < l; i++ {
-		structp := s.Index(i)
-		if structPointer_IsNil(structp) {
-			return // return the size up to this point
-		}
-
-		// Can the object marshal itself?
-		if p.isMarshaler {
-			m := structPointer_Interface(structp, p.stype).(Marshaler)
-			data, _ := m.Marshal()
-			n += sizeRawBytes(data)
-			continue
-		}
-
-		n0 := size_struct(p.sprop, structp)
-		n1 := sizeVarint(uint64(n0)) // size of encoded length
-		n += n0 + n1
-	}
-	return
-}
-
-// Encode a slice of group structs ([]*struct).
-func (o *Buffer) enc_slice_struct_group(p *Properties, base structPointer) error {
-	var state errorState
-	s := structPointer_StructPointerSlice(base, p.field)
-	l := s.Len()
-
-	for i := 0; i < l; i++ {
-		b := s.Index(i)
-		if structPointer_IsNil(b) {
-			return errRepeatedHasNil
-		}
-
-		o.EncodeVarint(uint64((p.Tag << 3) | WireStartGroup))
-
-		err := o.enc_struct(p.sprop, b)
-
-		if err != nil && !state.shouldContinue(err, nil) {
-			if err == ErrNil {
-				return errRepeatedHasNil
-			}
-			return err
-		}
-
-		o.EncodeVarint(uint64((p.Tag << 3) | WireEndGroup))
-	}
-	return state.err
-}
-
-func size_slice_struct_group(p *Properties, base structPointer) (n int) {
-	s := structPointer_StructPointerSlice(base, p.field)
-	l := s.Len()
-
-	n += l * sizeVarint(uint64((p.Tag<<3)|WireStartGroup))
-	n += l * sizeVarint(uint64((p.Tag<<3)|WireEndGroup))
-	for i := 0; i < l; i++ {
-		b := s.Index(i)
-		if structPointer_IsNil(b) {
-			return // return size up to this point
-		}
-
-		n += size_struct(p.sprop, b)
-	}
-	return
-}
-
-// Encode an extension map.
-func (o *Buffer) enc_map(p *Properties, base structPointer) error {
-	exts := structPointer_ExtMap(base, p.field)
-	if err := encodeExtensionsMap(*exts); err != nil {
-		return err
-	}
-
-	return o.enc_map_body(*exts)
-}
-
-func (o *Buffer) enc_exts(p *Properties, base structPointer) error {
-	exts := structPointer_Extensions(base, p.field)
-
-	v, mu := exts.extensionsRead()
-	if v == nil {
-		return nil
-	}
-
-	mu.Lock()
-	defer mu.Unlock()
-	if err := encodeExtensionsMap(v); err != nil {
-		return err
-	}
-
-	return o.enc_map_body(v)
-}
-
-func (o *Buffer) enc_map_body(v map[int32]Extension) error {
-	// Fast-path for common cases: zero or one extensions.
-	if len(v) <= 1 {
-		for _, e := range v {
-			o.buf = append(o.buf, e.enc...)
-		}
-		return nil
-	}
-
-	// Sort keys to provide a deterministic encoding.
-	keys := make([]int, 0, len(v))
-	for k := range v {
-		keys = append(keys, int(k))
-	}
-	sort.Ints(keys)
-
-	for _, k := range keys {
-		o.buf = append(o.buf, v[int32(k)].enc...)
-	}
-	return nil
-}
-
-func size_map(p *Properties, base structPointer) int {
-	v := structPointer_ExtMap(base, p.field)
-	return extensionsMapSize(*v)
-}
-
-func size_exts(p *Properties, base structPointer) int {
-	v := structPointer_Extensions(base, p.field)
-	return extensionsSize(v)
-}
-
-// Encode a map field.
-func (o *Buffer) enc_new_map(p *Properties, base structPointer) error {
-	var state errorState // XXX: or do we need to plumb this through?
-
-	/*
-		A map defined as
-			map<key_type, value_type> map_field = N;
-		is encoded in the same way as
-			message MapFieldEntry {
-				key_type key = 1;
-				value_type value = 2;
-			}
-			repeated MapFieldEntry map_field = N;
-	*/
-
-	v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V
-	if v.Len() == 0 {
-		return nil
-	}
-
-	keycopy, valcopy, keybase, valbase := mapEncodeScratch(p.mtype)
-
-	enc := func() error {
-		if err := p.mkeyprop.enc(o, p.mkeyprop, keybase); err != nil {
-			return err
-		}
-		if err := p.mvalprop.enc(o, p.mvalprop, valbase); err != nil && err != ErrNil {
-			return err
-		}
-		return nil
-	}
-
-	// Don't sort map keys. It is not required by the spec, and C++ doesn't do it.
-	for _, key := range v.MapKeys() {
-		val := v.MapIndex(key)
-
-		keycopy.Set(key)
-		valcopy.Set(val)
-
-		o.buf = append(o.buf, p.tagcode...)
-		if err := o.enc_len_thing(enc, &state); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func size_new_map(p *Properties, base structPointer) int {
-	v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V
-
-	keycopy, valcopy, keybase, valbase := mapEncodeScratch(p.mtype)
-
-	n := 0
-	for _, key := range v.MapKeys() {
-		val := v.MapIndex(key)
-		keycopy.Set(key)
-		valcopy.Set(val)
-
-		// Tag codes for key and val are the responsibility of the sub-sizer.
-		keysize := p.mkeyprop.size(p.mkeyprop, keybase)
-		valsize := p.mvalprop.size(p.mvalprop, valbase)
-		entry := keysize + valsize
-		// Add on tag code and length of map entry itself.
-		n += len(p.tagcode) + sizeVarint(uint64(entry)) + entry
-	}
-	return n
-}
-
-// mapEncodeScratch returns a new reflect.Value matching the map's value type,
-// and a structPointer suitable for passing to an encoder or sizer.
-func mapEncodeScratch(mapType reflect.Type) (keycopy, valcopy reflect.Value, keybase, valbase structPointer) {
-	// Prepare addressable doubly-indirect placeholders for the key and value types.
-	// This is needed because the element-type encoders expect **T, but the map iteration produces T.
-
-	keycopy = reflect.New(mapType.Key()).Elem()                 // addressable K
-	keyptr := reflect.New(reflect.PtrTo(keycopy.Type())).Elem() // addressable *K
-	keyptr.Set(keycopy.Addr())                                  //
-	keybase = toStructPointer(keyptr.Addr())                    // **K
-
-	// Value types are more varied and require special handling.
-	switch mapType.Elem().Kind() {
-	case reflect.Slice:
-		// []byte
-		var dummy []byte
-		valcopy = reflect.ValueOf(&dummy).Elem() // addressable []byte
-		valbase = toStructPointer(valcopy.Addr())
-	case reflect.Ptr:
-		// message; the generated field type is map[K]*Msg (so V is *Msg),
-		// so we only need one level of indirection.
-		valcopy = reflect.New(mapType.Elem()).Elem() // addressable V
-		valbase = toStructPointer(valcopy.Addr())
-	default:
-		// everything else
-		valcopy = reflect.New(mapType.Elem()).Elem()                // addressable V
-		valptr := reflect.New(reflect.PtrTo(valcopy.Type())).Elem() // addressable *V
-		valptr.Set(valcopy.Addr())                                  //
-		valbase = toStructPointer(valptr.Addr())                    // **V
-	}
-	return
-}
-
-// Encode a struct.
-func (o *Buffer) enc_struct(prop *StructProperties, base structPointer) error {
-	var state errorState
-	// Encode fields in tag order so that decoders may use optimizations
-	// that depend on the ordering.
-	// https://developers.google.com/protocol-buffers/docs/encoding#order
-	for _, i := range prop.order {
-		p := prop.Prop[i]
-		if p.enc != nil {
-			err := p.enc(o, p, base)
-			if err != nil {
-				if err == ErrNil {
-					if p.Required && state.err == nil {
-						state.err = &RequiredNotSetError{p.Name}
-					}
-				} else if err == errRepeatedHasNil {
-					// Give more context to nil values in repeated fields.
-					return errors.New("repeated field " + p.OrigName + " has nil element")
-				} else if !state.shouldContinue(err, p) {
-					return err
-				}
-			}
-			if len(o.buf) > maxMarshalSize {
-				return ErrTooLarge
-			}
-		}
-	}
-
-	// Do oneof fields.
-	if prop.oneofMarshaler != nil {
-		m := structPointer_Interface(base, prop.stype).(Message)
-		if err := prop.oneofMarshaler(m, o); err == ErrNil {
-			return errOneofHasNil
-		} else if err != nil {
-			return err
-		}
-	}
-
-	// Add unrecognized fields at the end.
-	if prop.unrecField.IsValid() {
-		v := *structPointer_Bytes(base, prop.unrecField)
-		if len(o.buf)+len(v) > maxMarshalSize {
-			return ErrTooLarge
-		}
-		if len(v) > 0 {
-			o.buf = append(o.buf, v...)
-		}
-	}
-
-	return state.err
-}
-
-func size_struct(prop *StructProperties, base structPointer) (n int) {
-	for _, i := range prop.order {
-		p := prop.Prop[i]
-		if p.size != nil {
-			n += p.size(p, base)
-		}
-	}
-
-	// Add unrecognized fields at the end.
-	if prop.unrecField.IsValid() {
-		v := *structPointer_Bytes(base, prop.unrecField)
-		n += len(v)
-	}
-
-	// Factor in any oneof fields.
-	if prop.oneofSizer != nil {
-		m := structPointer_Interface(base, prop.stype).(Message)
-		n += prop.oneofSizer(m)
-	}
-
-	return
-}
-
-var zeroes [20]byte // longer than any conceivable sizeVarint
-
-// Encode a struct, preceded by its encoded length (as a varint).
-func (o *Buffer) enc_len_struct(prop *StructProperties, base structPointer, state *errorState) error {
-	return o.enc_len_thing(func() error { return o.enc_struct(prop, base) }, state)
-}
-
-// Encode something, preceded by its encoded length (as a varint).
-func (o *Buffer) enc_len_thing(enc func() error, state *errorState) error {
-	iLen := len(o.buf)
-	o.buf = append(o.buf, 0, 0, 0, 0) // reserve four bytes for length
-	iMsg := len(o.buf)
-	err := enc()
-	if err != nil && !state.shouldContinue(err, nil) {
-		return err
-	}
-	lMsg := len(o.buf) - iMsg
-	lLen := sizeVarint(uint64(lMsg))
-	switch x := lLen - (iMsg - iLen); {
-	case x > 0: // actual length is x bytes larger than the space we reserved
-		// Move msg x bytes right.
-		o.buf = append(o.buf, zeroes[:x]...)
-		copy(o.buf[iMsg+x:], o.buf[iMsg:iMsg+lMsg])
-	case x < 0: // actual length is x bytes smaller than the space we reserved
-		// Move msg x bytes left.
-		copy(o.buf[iMsg+x:], o.buf[iMsg:iMsg+lMsg])
-		o.buf = o.buf[:len(o.buf)+x] // x is negative
-	}
-	// Encode the length in the reserved space.
-	o.buf = o.buf[:iLen]
-	o.EncodeVarint(uint64(lMsg))
-	o.buf = o.buf[:len(o.buf)+lMsg]
-	return state.err
-}
-
-// errorState maintains the first error that occurs and updates that error
-// with additional context.
-type errorState struct {
-	err error
-}
-
-// shouldContinue reports whether encoding should continue upon encountering the
-// given error. If the error is RequiredNotSetError, shouldContinue returns true
-// and, if this is the first appearance of that error, remembers it for future
-// reporting.
-//
-// If prop is not nil, it may update any error with additional context about the
-// field with the error.
-func (s *errorState) shouldContinue(err error, prop *Properties) bool {
-	// Ignore unset required fields.
-	reqNotSet, ok := err.(*RequiredNotSetError)
-	if !ok {
-		return false
-	}
-	if s.err == nil {
-		if prop != nil {
-			err = &RequiredNotSetError{prop.Name + "." + reqNotSet.field}
-		}
-		s.err = err
-	}
-	return true
-}
diff --git a/vendor/github.com/golang/protobuf/proto/equal.go b/vendor/github.com/golang/protobuf/proto/equal.go
deleted file mode 100644
index 2ed1cf59..00000000
--- a/vendor/github.com/golang/protobuf/proto/equal.go
+++ /dev/null
@@ -1,300 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2011 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Protocol buffer comparison.
-
-package proto
-
-import (
-	"bytes"
-	"log"
-	"reflect"
-	"strings"
-)
-
-/*
-Equal returns true iff protocol buffers a and b are equal.
-The arguments must both be pointers to protocol buffer structs.
-
-Equality is defined in this way:
-  - Two messages are equal iff they are the same type,
-    corresponding fields are equal, unknown field sets
-    are equal, and extensions sets are equal.
-  - Two set scalar fields are equal iff their values are equal.
-    If the fields are of a floating-point type, remember that
-    NaN != x for all x, including NaN. If the message is defined
-    in a proto3 .proto file, fields are not "set"; specifically,
-    zero length proto3 "bytes" fields are equal (nil == {}).
-  - Two repeated fields are equal iff their lengths are the same,
-    and their corresponding elements are equal. Note a "bytes" field,
-    although represented by []byte, is not a repeated field and the
-    rule for the scalar fields described above applies.
-  - Two unset fields are equal.
-  - Two unknown field sets are equal if their current
-    encoded state is equal.
-  - Two extension sets are equal iff they have corresponding
-    elements that are pairwise equal.
-  - Two map fields are equal iff their lengths are the same,
-    and they contain the same set of elements. Zero-length map
-    fields are equal.
-  - Every other combination of things are not equal.
-
-The return value is undefined if a and b are not protocol buffers.
-*/
-func Equal(a, b Message) bool {
-	if a == nil || b == nil {
-		return a == b
-	}
-	v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b)
-	if v1.Type() != v2.Type() {
-		return false
-	}
-	if v1.Kind() == reflect.Ptr {
-		if v1.IsNil() {
-			return v2.IsNil()
-		}
-		if v2.IsNil() {
-			return false
-		}
-		v1, v2 = v1.Elem(), v2.Elem()
-	}
-	if v1.Kind() != reflect.Struct {
-		return false
-	}
-	return equalStruct(v1, v2)
-}
-
-// v1 and v2 are known to have the same type.
-func equalStruct(v1, v2 reflect.Value) bool {
-	sprop := GetProperties(v1.Type())
-	for i := 0; i < v1.NumField(); i++ {
-		f := v1.Type().Field(i)
-		if strings.HasPrefix(f.Name, "XXX_") {
-			continue
-		}
-		f1, f2 := v1.Field(i), v2.Field(i)
-		if f.Type.Kind() == reflect.Ptr {
-			if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 {
-				// both unset
-				continue
-			} else if n1 != n2 {
-				// set/unset mismatch
-				return false
-			}
-			b1, ok := f1.Interface().(raw)
-			if ok {
-				b2 := f2.Interface().(raw)
-				// RawMessage
-				if !bytes.Equal(b1.Bytes(), b2.Bytes()) {
-					return false
-				}
-				continue
-			}
-			f1, f2 = f1.Elem(), f2.Elem()
-		}
-		if !equalAny(f1, f2, sprop.Prop[i]) {
-			return false
-		}
-	}
-
-	if em1 := v1.FieldByName("XXX_InternalExtensions"); em1.IsValid() {
-		em2 := v2.FieldByName("XXX_InternalExtensions")
-		if !equalExtensions(v1.Type(), em1.Interface().(XXX_InternalExtensions), em2.Interface().(XXX_InternalExtensions)) {
-			return false
-		}
-	}
-
-	if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() {
-		em2 := v2.FieldByName("XXX_extensions")
-		if !equalExtMap(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) {
-			return false
-		}
-	}
-
-	uf := v1.FieldByName("XXX_unrecognized")
-	if !uf.IsValid() {
-		return true
-	}
-
-	u1 := uf.Bytes()
-	u2 := v2.FieldByName("XXX_unrecognized").Bytes()
-	if !bytes.Equal(u1, u2) {
-		return false
-	}
-
-	return true
-}
-
-// v1 and v2 are known to have the same type.
-// prop may be nil.
-func equalAny(v1, v2 reflect.Value, prop *Properties) bool {
-	if v1.Type() == protoMessageType {
-		m1, _ := v1.Interface().(Message)
-		m2, _ := v2.Interface().(Message)
-		return Equal(m1, m2)
-	}
-	switch v1.Kind() {
-	case reflect.Bool:
-		return v1.Bool() == v2.Bool()
-	case reflect.Float32, reflect.Float64:
-		return v1.Float() == v2.Float()
-	case reflect.Int32, reflect.Int64:
-		return v1.Int() == v2.Int()
-	case reflect.Interface:
-		// Probably a oneof field; compare the inner values.
-		n1, n2 := v1.IsNil(), v2.IsNil()
-		if n1 || n2 {
-			return n1 == n2
-		}
-		e1, e2 := v1.Elem(), v2.Elem()
-		if e1.Type() != e2.Type() {
-			return false
-		}
-		return equalAny(e1, e2, nil)
-	case reflect.Map:
-		if v1.Len() != v2.Len() {
-			return false
-		}
-		for _, key := range v1.MapKeys() {
-			val2 := v2.MapIndex(key)
-			if !val2.IsValid() {
-				// This key was not found in the second map.
-				return false
-			}
-			if !equalAny(v1.MapIndex(key), val2, nil) {
-				return false
-			}
-		}
-		return true
-	case reflect.Ptr:
-		// Maps may have nil values in them, so check for nil.
-		if v1.IsNil() && v2.IsNil() {
-			return true
-		}
-		if v1.IsNil() != v2.IsNil() {
-			return false
-		}
-		return equalAny(v1.Elem(), v2.Elem(), prop)
-	case reflect.Slice:
-		if v1.Type().Elem().Kind() == reflect.Uint8 {
-			// short circuit: []byte
-
-			// Edge case: if this is in a proto3 message, a zero length
-			// bytes field is considered the zero value.
-			if prop != nil && prop.proto3 && v1.Len() == 0 && v2.Len() == 0 {
-				return true
-			}
-			if v1.IsNil() != v2.IsNil() {
-				return false
-			}
-			return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte))
-		}
-
-		if v1.Len() != v2.Len() {
-			return false
-		}
-		for i := 0; i < v1.Len(); i++ {
-			if !equalAny(v1.Index(i), v2.Index(i), prop) {
-				return false
-			}
-		}
-		return true
-	case reflect.String:
-		return v1.Interface().(string) == v2.Interface().(string)
-	case reflect.Struct:
-		return equalStruct(v1, v2)
-	case reflect.Uint32, reflect.Uint64:
-		return v1.Uint() == v2.Uint()
-	}
-
-	// unknown type, so not a protocol buffer
-	log.Printf("proto: don't know how to compare %v", v1)
-	return false
-}
-
-// base is the struct type that the extensions are based on.
-// x1 and x2 are InternalExtensions.
-func equalExtensions(base reflect.Type, x1, x2 XXX_InternalExtensions) bool {
-	em1, _ := x1.extensionsRead()
-	em2, _ := x2.extensionsRead()
-	return equalExtMap(base, em1, em2)
-}
-
-func equalExtMap(base reflect.Type, em1, em2 map[int32]Extension) bool {
-	if len(em1) != len(em2) {
-		return false
-	}
-
-	for extNum, e1 := range em1 {
-		e2, ok := em2[extNum]
-		if !ok {
-			return false
-		}
-
-		m1, m2 := e1.value, e2.value
-
-		if m1 != nil && m2 != nil {
-			// Both are unencoded.
-			if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
-				return false
-			}
-			continue
-		}
-
-		// At least one is encoded. To do a semantically correct comparison
-		// we need to unmarshal them first.
-		var desc *ExtensionDesc
-		if m := extensionMaps[base]; m != nil {
-			desc = m[extNum]
-		}
-		if desc == nil {
-			log.Printf("proto: don't know how to compare extension %d of %v", extNum, base)
-			continue
-		}
-		var err error
-		if m1 == nil {
-			m1, err = decodeExtension(e1.enc, desc)
-		}
-		if m2 == nil && err == nil {
-			m2, err = decodeExtension(e2.enc, desc)
-		}
-		if err != nil {
-			// The encoded form is invalid.
-			log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err)
-			return false
-		}
-		if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
-			return false
-		}
-	}
-
-	return true
-}
diff --git a/vendor/github.com/golang/protobuf/proto/extensions.go b/vendor/github.com/golang/protobuf/proto/extensions.go
index eaad2183..42fc120c 100644
--- a/vendor/github.com/golang/protobuf/proto/extensions.go
+++ b/vendor/github.com/golang/protobuf/proto/extensions.go
@@ -1,587 +1,356 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
 
 package proto
 
-/*
- * Types and routines for supporting protocol buffer extensions.
- */
-
 import (
 	"errors"
 	"fmt"
 	"reflect"
-	"strconv"
-	"sync"
-)
-
-// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message.
-var ErrMissingExtension = errors.New("proto: missing extension")
 
-// ExtensionRange represents a range of message extensions for a protocol buffer.
-// Used in code generated by the protocol compiler.
-type ExtensionRange struct {
-	Start, End int32 // both inclusive
-}
-
-// extendableProto is an interface implemented by any protocol buffer generated by the current
-// proto compiler that may be extended.
-type extendableProto interface {
-	Message
-	ExtensionRangeArray() []ExtensionRange
-	extensionsWrite() map[int32]Extension
-	extensionsRead() (map[int32]Extension, sync.Locker)
-}
-
-// extendableProtoV1 is an interface implemented by a protocol buffer generated by the previous
-// version of the proto compiler that may be extended.
-type extendableProtoV1 interface {
-	Message
-	ExtensionRangeArray() []ExtensionRange
-	ExtensionMap() map[int32]Extension
-}
+	"google.golang.org/protobuf/encoding/protowire"
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoregistry"
+	"google.golang.org/protobuf/runtime/protoiface"
+	"google.golang.org/protobuf/runtime/protoimpl"
+)
 
-// extensionAdapter is a wrapper around extendableProtoV1 that implements extendableProto.
-type extensionAdapter struct {
-	extendableProtoV1
-}
+type (
+	// ExtensionDesc represents an extension descriptor and
+	// is used to interact with an extension field in a message.
+	//
+	// Variables of this type are generated in code by protoc-gen-go.
+	ExtensionDesc = protoimpl.ExtensionInfo
 
-func (e extensionAdapter) extensionsWrite() map[int32]Extension {
-	return e.ExtensionMap()
-}
+	// ExtensionRange represents a range of message extensions.
+	// Used in code generated by protoc-gen-go.
+	ExtensionRange = protoiface.ExtensionRangeV1
 
-func (e extensionAdapter) extensionsRead() (map[int32]Extension, sync.Locker) {
-	return e.ExtensionMap(), notLocker{}
-}
+	// Deprecated: Do not use; this is an internal type.
+	Extension = protoimpl.ExtensionFieldV1
 
-// notLocker is a sync.Locker whose Lock and Unlock methods are nops.
-type notLocker struct{}
+	// Deprecated: Do not use; this is an internal type.
+	XXX_InternalExtensions = protoimpl.ExtensionFields
+)
 
-func (n notLocker) Lock()   {}
-func (n notLocker) Unlock() {}
+// ErrMissingExtension reports whether the extension was not present.
+var ErrMissingExtension = errors.New("proto: missing extension")
 
-// extendable returns the extendableProto interface for the given generated proto message.
-// If the proto message has the old extension format, it returns a wrapper that implements
-// the extendableProto interface.
-func extendable(p interface{}) (extendableProto, bool) {
-	if ep, ok := p.(extendableProto); ok {
-		return ep, ok
-	}
-	if ep, ok := p.(extendableProtoV1); ok {
-		return extensionAdapter{ep}, ok
-	}
-	return nil, false
-}
+var errNotExtendable = errors.New("proto: not an extendable proto.Message")
 
-// XXX_InternalExtensions is an internal representation of proto extensions.
-//
-// Each generated message struct type embeds an anonymous XXX_InternalExtensions field,
-// thus gaining the unexported 'extensions' method, which can be called only from the proto package.
-//
-// The methods of XXX_InternalExtensions are not concurrency safe in general,
-// but calls to logically read-only methods such as has and get may be executed concurrently.
-type XXX_InternalExtensions struct {
-	// The struct must be indirect so that if a user inadvertently copies a
-	// generated message and its embedded XXX_InternalExtensions, they
-	// avoid the mayhem of a copied mutex.
-	//
-	// The mutex serializes all logically read-only operations to p.extensionMap.
-	// It is up to the client to ensure that write operations to p.extensionMap are
-	// mutually exclusive with other accesses.
-	p *struct {
-		mu           sync.Mutex
-		extensionMap map[int32]Extension
+// HasExtension reports whether the extension field is present in m
+// either as an explicitly populated field or as an unknown field.
+func HasExtension(m Message, xt *ExtensionDesc) (has bool) {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() {
+		return false
 	}
-}
 
-// extensionsWrite returns the extension map, creating it on first use.
-func (e *XXX_InternalExtensions) extensionsWrite() map[int32]Extension {
-	if e.p == nil {
-		e.p = new(struct {
-			mu           sync.Mutex
-			extensionMap map[int32]Extension
+	// Check whether any populated known field matches the field number.
+	xtd := xt.TypeDescriptor()
+	if isValidExtension(mr.Descriptor(), xtd) {
+		has = mr.Has(xtd)
+	} else {
+		mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
+			has = int32(fd.Number()) == xt.Field
+			return !has
 		})
-		e.p.extensionMap = make(map[int32]Extension)
 	}
-	return e.p.extensionMap
-}
 
-// extensionsRead returns the extensions map for read-only use.  It may be nil.
-// The caller must hold the returned mutex's lock when accessing Elements within the map.
-func (e *XXX_InternalExtensions) extensionsRead() (map[int32]Extension, sync.Locker) {
-	if e.p == nil {
-		return nil, nil
+	// Check whether any unknown field matches the field number.
+	for b := mr.GetUnknown(); !has && len(b) > 0; {
+		num, _, n := protowire.ConsumeField(b)
+		has = int32(num) == xt.Field
+		b = b[n:]
 	}
-	return e.p.extensionMap, &e.p.mu
-}
-
-var extendableProtoType = reflect.TypeOf((*extendableProto)(nil)).Elem()
-var extendableProtoV1Type = reflect.TypeOf((*extendableProtoV1)(nil)).Elem()
-
-// ExtensionDesc represents an extension specification.
-// Used in generated code from the protocol compiler.
-type ExtensionDesc struct {
-	ExtendedType  Message     // nil pointer to the type that is being extended
-	ExtensionType interface{} // nil pointer to the extension type
-	Field         int32       // field number
-	Name          string      // fully-qualified name of extension, for text formatting
-	Tag           string      // protobuf tag style
-	Filename      string      // name of the file in which the extension is defined
+	return has
 }
 
-func (ed *ExtensionDesc) repeated() bool {
-	t := reflect.TypeOf(ed.ExtensionType)
-	return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8
-}
-
-// Extension represents an extension in a message.
-type Extension struct {
-	// When an extension is stored in a message using SetExtension
-	// only desc and value are set. When the message is marshaled
-	// enc will be set to the encoded form of the message.
-	//
-	// When a message is unmarshaled and contains extensions, each
-	// extension will have only enc set. When such an extension is
-	// accessed using GetExtension (or GetExtensions) desc and value
-	// will be set.
-	desc  *ExtensionDesc
-	value interface{}
-	enc   []byte
-}
-
-// SetRawExtension is for testing only.
-func SetRawExtension(base Message, id int32, b []byte) {
-	epb, ok := extendable(base)
-	if !ok {
+// ClearExtension removes the extension field from m
+// either as an explicitly populated field or as an unknown field.
+func ClearExtension(m Message, xt *ExtensionDesc) {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() {
 		return
 	}
-	extmap := epb.extensionsWrite()
-	extmap[id] = Extension{enc: b}
-}
 
-// isExtensionField returns true iff the given field number is in an extension range.
-func isExtensionField(pb extendableProto, field int32) bool {
-	for _, er := range pb.ExtensionRangeArray() {
-		if er.Start <= field && field <= er.End {
+	xtd := xt.TypeDescriptor()
+	if isValidExtension(mr.Descriptor(), xtd) {
+		mr.Clear(xtd)
+	} else {
+		mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
+			if int32(fd.Number()) == xt.Field {
+				mr.Clear(fd)
+				return false
+			}
 			return true
-		}
+		})
 	}
-	return false
+	clearUnknown(mr, fieldNum(xt.Field))
 }
 
-// checkExtensionTypes checks that the given extension is valid for pb.
-func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error {
-	var pbi interface{} = pb
-	// Check the extended type.
-	if ea, ok := pbi.(extensionAdapter); ok {
-		pbi = ea.extendableProtoV1
-	}
-	if a, b := reflect.TypeOf(pbi), reflect.TypeOf(extension.ExtendedType); a != b {
-		return errors.New("proto: bad extended type; " + b.String() + " does not extend " + a.String())
-	}
-	// Check the range.
-	if !isExtensionField(pb, extension.Field) {
-		return errors.New("proto: bad extension number; not in declared ranges")
+// ClearAllExtensions clears all extensions from m.
+// This includes populated fields and unknown fields in the extension range.
+func ClearAllExtensions(m Message) {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() {
+		return
 	}
-	return nil
-}
-
-// extPropKey is sufficient to uniquely identify an extension.
-type extPropKey struct {
-	base  reflect.Type
-	field int32
-}
 
-var extProp = struct {
-	sync.RWMutex
-	m map[extPropKey]*Properties
-}{
-	m: make(map[extPropKey]*Properties),
+	mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
+		if fd.IsExtension() {
+			mr.Clear(fd)
+		}
+		return true
+	})
+	clearUnknown(mr, mr.Descriptor().ExtensionRanges())
 }
 
-func extensionProperties(ed *ExtensionDesc) *Properties {
-	key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field}
-
-	extProp.RLock()
-	if prop, ok := extProp.m[key]; ok {
-		extProp.RUnlock()
-		return prop
+// GetExtension retrieves a proto2 extended field from m.
+//
+// If the descriptor is type complete (i.e., ExtensionDesc.ExtensionType is non-nil),
+// then GetExtension parses the encoded field and returns a Go value of the specified type.
+// If the field is not present, then the default value is returned (if one is specified),
+// otherwise ErrMissingExtension is reported.
+//
+// If the descriptor is type incomplete (i.e., ExtensionDesc.ExtensionType is nil),
+// then GetExtension returns the raw encoded bytes for the extension field.
+func GetExtension(m Message, xt *ExtensionDesc) (interface{}, error) {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
+		return nil, errNotExtendable
+	}
+
+	// Retrieve the unknown fields for this extension field.
+	var bo protoreflect.RawFields
+	for bi := mr.GetUnknown(); len(bi) > 0; {
+		num, _, n := protowire.ConsumeField(bi)
+		if int32(num) == xt.Field {
+			bo = append(bo, bi[:n]...)
+		}
+		bi = bi[n:]
 	}
-	extProp.RUnlock()
 
-	extProp.Lock()
-	defer extProp.Unlock()
-	// Check again.
-	if prop, ok := extProp.m[key]; ok {
-		return prop
+	// For type incomplete descriptors, only retrieve the unknown fields.
+	if xt.ExtensionType == nil {
+		return []byte(bo), nil
 	}
 
-	prop := new(Properties)
-	prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil)
-	extProp.m[key] = prop
-	return prop
-}
-
-// encode encodes any unmarshaled (unencoded) extensions in e.
-func encodeExtensions(e *XXX_InternalExtensions) error {
-	m, mu := e.extensionsRead()
-	if m == nil {
-		return nil // fast path
+	// If the extension field only exists as unknown fields, unmarshal it.
+	// This is rarely done since proto.Unmarshal eagerly unmarshals extensions.
+	xtd := xt.TypeDescriptor()
+	if !isValidExtension(mr.Descriptor(), xtd) {
+		return nil, fmt.Errorf("proto: bad extended type; %T does not extend %T", xt.ExtendedType, m)
 	}
-	mu.Lock()
-	defer mu.Unlock()
-	return encodeExtensionsMap(m)
-}
-
-// encode encodes any unmarshaled (unencoded) extensions in e.
-func encodeExtensionsMap(m map[int32]Extension) error {
-	for k, e := range m {
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			continue
+	if !mr.Has(xtd) && len(bo) > 0 {
+		m2 := mr.New()
+		if err := (proto.UnmarshalOptions{
+			Resolver: extensionResolver{xt},
+		}.Unmarshal(bo, m2.Interface())); err != nil {
+			return nil, err
 		}
-
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-
-		et := reflect.TypeOf(e.desc.ExtensionType)
-		props := extensionProperties(e.desc)
-
-		p := NewBuffer(nil)
-		// If e.value has type T, the encoder expects a *struct{ X T }.
-		// Pass a *T with a zero field and hope it all works out.
-		x := reflect.New(et)
-		x.Elem().Set(reflect.ValueOf(e.value))
-		if err := props.enc(p, props, toStructPointer(x)); err != nil {
-			return err
+		if m2.Has(xtd) {
+			mr.Set(xtd, m2.Get(xtd))
+			clearUnknown(mr, fieldNum(xt.Field))
 		}
-		e.enc = p.buf
-		m[k] = e
 	}
-	return nil
-}
 
-func extensionsSize(e *XXX_InternalExtensions) (n int) {
-	m, mu := e.extensionsRead()
-	if m == nil {
-		return 0
+	// Check whether the message has the extension field set or a default.
+	var pv protoreflect.Value
+	switch {
+	case mr.Has(xtd):
+		pv = mr.Get(xtd)
+	case xtd.HasDefault():
+		pv = xtd.Default()
+	default:
+		return nil, ErrMissingExtension
 	}
-	mu.Lock()
-	defer mu.Unlock()
-	return extensionsMapSize(m)
-}
-
-func extensionsMapSize(m map[int32]Extension) (n int) {
-	for _, e := range m {
-		if e.value == nil || e.desc == nil {
-			// Extension is only in its encoded form.
-			n += len(e.enc)
-			continue
-		}
 
-		// We don't skip extensions that have an encoded form set,
-		// because the extension value may have been mutated after
-		// the last time this function was called.
-
-		et := reflect.TypeOf(e.desc.ExtensionType)
-		props := extensionProperties(e.desc)
-
-		// If e.value has type T, the encoder expects a *struct{ X T }.
-		// Pass a *T with a zero field and hope it all works out.
-		x := reflect.New(et)
-		x.Elem().Set(reflect.ValueOf(e.value))
-		n += props.size(props, toStructPointer(x))
+	v := xt.InterfaceOf(pv)
+	rv := reflect.ValueOf(v)
+	if isScalarKind(rv.Kind()) {
+		rv2 := reflect.New(rv.Type())
+		rv2.Elem().Set(rv)
+		v = rv2.Interface()
 	}
-	return
+	return v, nil
 }
 
-// HasExtension returns whether the given extension is present in pb.
-func HasExtension(pb Message, extension *ExtensionDesc) bool {
-	// TODO: Check types, field numbers, etc.?
-	epb, ok := extendable(pb)
-	if !ok {
-		return false
-	}
-	extmap, mu := epb.extensionsRead()
-	if extmap == nil {
-		return false
-	}
-	mu.Lock()
-	_, ok = extmap[extension.Field]
-	mu.Unlock()
-	return ok
-}
+// extensionResolver is a custom extension resolver that stores a single
+// extension type that takes precedence over the global registry.
+type extensionResolver struct{ xt protoreflect.ExtensionType }
 
-// ClearExtension removes the given extension from pb.
-func ClearExtension(pb Message, extension *ExtensionDesc) {
-	epb, ok := extendable(pb)
-	if !ok {
-		return
+func (r extensionResolver) FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) {
+	if xtd := r.xt.TypeDescriptor(); xtd.FullName() == field {
+		return r.xt, nil
 	}
-	// TODO: Check types, field numbers, etc.?
-	extmap := epb.extensionsWrite()
-	delete(extmap, extension.Field)
+	return protoregistry.GlobalTypes.FindExtensionByName(field)
 }
 
-// GetExtension parses and returns the given extension of pb.
-// If the extension is not present and has no default value it returns ErrMissingExtension.
-func GetExtension(pb Message, extension *ExtensionDesc) (interface{}, error) {
-	epb, ok := extendable(pb)
-	if !ok {
-		return nil, errors.New("proto: not an extendable proto")
-	}
-
-	if err := checkExtensionTypes(epb, extension); err != nil {
-		return nil, err
+func (r extensionResolver) FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) {
+	if xtd := r.xt.TypeDescriptor(); xtd.ContainingMessage().FullName() == message && xtd.Number() == field {
+		return r.xt, nil
 	}
+	return protoregistry.GlobalTypes.FindExtensionByNumber(message, field)
+}
 
-	emap, mu := epb.extensionsRead()
-	if emap == nil {
-		return defaultExtensionValue(extension)
-	}
-	mu.Lock()
-	defer mu.Unlock()
-	e, ok := emap[extension.Field]
-	if !ok {
-		// defaultExtensionValue returns the default value or
-		// ErrMissingExtension if there is no default.
-		return defaultExtensionValue(extension)
+// GetExtensions returns a list of the extensions values present in m,
+// corresponding with the provided list of extension descriptors, xts.
+// If an extension is missing in m, the corresponding value is nil.
+func GetExtensions(m Message, xts []*ExtensionDesc) ([]interface{}, error) {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() {
+		return nil, errNotExtendable
 	}
 
-	if e.value != nil {
-		// Already decoded. Check the descriptor, though.
-		if e.desc != extension {
-			// This shouldn't happen. If it does, it means that
-			// GetExtension was called twice with two different
-			// descriptors with the same field number.
-			return nil, errors.New("proto: descriptor conflict")
+	vs := make([]interface{}, len(xts))
+	for i, xt := range xts {
+		v, err := GetExtension(m, xt)
+		if err != nil {
+			if err == ErrMissingExtension {
+				continue
+			}
+			return vs, err
 		}
-		return e.value, nil
-	}
-
-	v, err := decodeExtension(e.enc, extension)
-	if err != nil {
-		return nil, err
+		vs[i] = v
 	}
-
-	// Remember the decoded version and drop the encoded version.
-	// That way it is safe to mutate what we return.
-	e.value = v
-	e.desc = extension
-	e.enc = nil
-	emap[extension.Field] = e
-	return e.value, nil
+	return vs, nil
 }
 
-// defaultExtensionValue returns the default value for extension.
-// If no default for an extension is defined ErrMissingExtension is returned.
-func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) {
-	t := reflect.TypeOf(extension.ExtensionType)
-	props := extensionProperties(extension)
-
-	sf, _, err := fieldDefault(t, props)
-	if err != nil {
-		return nil, err
-	}
-
-	if sf == nil || sf.value == nil {
-		// There is no default value.
-		return nil, ErrMissingExtension
-	}
-
-	if t.Kind() != reflect.Ptr {
-		// We do not need to return a Ptr, we can directly return sf.value.
-		return sf.value, nil
+// SetExtension sets an extension field in m to the provided value.
+func SetExtension(m Message, xt *ExtensionDesc, v interface{}) error {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
+		return errNotExtendable
 	}
 
-	// We need to return an interface{} that is a pointer to sf.value.
-	value := reflect.New(t).Elem()
-	value.Set(reflect.New(value.Type().Elem()))
-	if sf.kind == reflect.Int32 {
-		// We may have an int32 or an enum, but the underlying data is int32.
-		// Since we can't set an int32 into a non int32 reflect.value directly
-		// set it as a int32.
-		value.Elem().SetInt(int64(sf.value.(int32)))
-	} else {
-		value.Elem().Set(reflect.ValueOf(sf.value))
+	rv := reflect.ValueOf(v)
+	if reflect.TypeOf(v) != reflect.TypeOf(xt.ExtensionType) {
+		return fmt.Errorf("proto: bad extension value type. got: %T, want: %T", v, xt.ExtensionType)
 	}
-	return value.Interface(), nil
-}
-
-// decodeExtension decodes an extension encoded in b.
-func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) {
-	o := NewBuffer(b)
-
-	t := reflect.TypeOf(extension.ExtensionType)
-
-	props := extensionProperties(extension)
-
-	// t is a pointer to a struct, pointer to basic type or a slice.
-	// Allocate a "field" to store the pointer/slice itself; the
-	// pointer/slice will be stored here. We pass
-	// the address of this field to props.dec.
-	// This passes a zero field and a *t and lets props.dec
-	// interpret it as a *struct{ x t }.
-	value := reflect.New(t).Elem()
-
-	for {
-		// Discard wire type and field number varint. It isn't needed.
-		if _, err := o.DecodeVarint(); err != nil {
-			return nil, err
+	if rv.Kind() == reflect.Ptr {
+		if rv.IsNil() {
+			return fmt.Errorf("proto: SetExtension called with nil value of type %T", v)
 		}
-
-		if err := props.dec(o, props, toStructPointer(value.Addr())); err != nil {
-			return nil, err
+		if isScalarKind(rv.Elem().Kind()) {
+			v = rv.Elem().Interface()
 		}
+	}
 
-		if o.index >= len(o.buf) {
-			break
-		}
+	xtd := xt.TypeDescriptor()
+	if !isValidExtension(mr.Descriptor(), xtd) {
+		return fmt.Errorf("proto: bad extended type; %T does not extend %T", xt.ExtendedType, m)
 	}
-	return value.Interface(), nil
+	mr.Set(xtd, xt.ValueOf(v))
+	clearUnknown(mr, fieldNum(xt.Field))
+	return nil
 }
 
-// GetExtensions returns a slice of the extensions present in pb that are also listed in es.
-// The returned slice has the same length as es; missing extensions will appear as nil elements.
-func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) {
-	epb, ok := extendable(pb)
-	if !ok {
-		return nil, errors.New("proto: not an extendable proto")
+// SetRawExtension inserts b into the unknown fields of m.
+//
+// Deprecated: Use Message.ProtoReflect.SetUnknown instead.
+func SetRawExtension(m Message, fnum int32, b []byte) {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() {
+		return
 	}
-	extensions = make([]interface{}, len(es))
-	for i, e := range es {
-		extensions[i], err = GetExtension(epb, e)
-		if err == ErrMissingExtension {
-			err = nil
-		}
-		if err != nil {
-			return
+
+	// Verify that the raw field is valid.
+	for b0 := b; len(b0) > 0; {
+		num, _, n := protowire.ConsumeField(b0)
+		if int32(num) != fnum {
+			panic(fmt.Sprintf("mismatching field number: got %d, want %d", num, fnum))
 		}
+		b0 = b0[n:]
 	}
-	return
+
+	ClearExtension(m, &ExtensionDesc{Field: fnum})
+	mr.SetUnknown(append(mr.GetUnknown(), b...))
 }
 
-// ExtensionDescs returns a new slice containing pb's extension descriptors, in undefined order.
-// For non-registered extensions, ExtensionDescs returns an incomplete descriptor containing
-// just the Field field, which defines the extension's field number.
-func ExtensionDescs(pb Message) ([]*ExtensionDesc, error) {
-	epb, ok := extendable(pb)
-	if !ok {
-		return nil, fmt.Errorf("proto: %T is not an extendable proto.Message", pb)
+// ExtensionDescs returns a list of extension descriptors found in m,
+// containing descriptors for both populated extension fields in m and
+// also unknown fields of m that are in the extension range.
+// For the later case, an type incomplete descriptor is provided where only
+// the ExtensionDesc.Field field is populated.
+// The order of the extension descriptors is undefined.
+func ExtensionDescs(m Message) ([]*ExtensionDesc, error) {
+	mr := MessageReflect(m)
+	if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
+		return nil, errNotExtendable
 	}
-	registeredExtensions := RegisteredExtensions(pb)
 
-	emap, mu := epb.extensionsRead()
-	if emap == nil {
-		return nil, nil
-	}
-	mu.Lock()
-	defer mu.Unlock()
-	extensions := make([]*ExtensionDesc, 0, len(emap))
-	for extid, e := range emap {
-		desc := e.desc
-		if desc == nil {
-			desc = registeredExtensions[extid]
-			if desc == nil {
-				desc = &ExtensionDesc{Field: extid}
+	// Collect a set of known extension descriptors.
+	extDescs := make(map[protoreflect.FieldNumber]*ExtensionDesc)
+	mr.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
+		if fd.IsExtension() {
+			xt := fd.(protoreflect.ExtensionTypeDescriptor)
+			if xd, ok := xt.Type().(*ExtensionDesc); ok {
+				extDescs[fd.Number()] = xd
 			}
 		}
-
-		extensions = append(extensions, desc)
+		return true
+	})
+
+	// Collect a set of unknown extension descriptors.
+	extRanges := mr.Descriptor().ExtensionRanges()
+	for b := mr.GetUnknown(); len(b) > 0; {
+		num, _, n := protowire.ConsumeField(b)
+		if extRanges.Has(num) && extDescs[num] == nil {
+			extDescs[num] = nil
+		}
+		b = b[n:]
 	}
-	return extensions, nil
-}
 
-// SetExtension sets the specified extension of pb to the specified value.
-func SetExtension(pb Message, extension *ExtensionDesc, value interface{}) error {
-	epb, ok := extendable(pb)
-	if !ok {
-		return errors.New("proto: not an extendable proto")
-	}
-	if err := checkExtensionTypes(epb, extension); err != nil {
-		return err
-	}
-	typ := reflect.TypeOf(extension.ExtensionType)
-	if typ != reflect.TypeOf(value) {
-		return errors.New("proto: bad extension value type")
-	}
-	// nil extension values need to be caught early, because the
-	// encoder can't distinguish an ErrNil due to a nil extension
-	// from an ErrNil due to a missing field. Extensions are
-	// always optional, so the encoder would just swallow the error
-	// and drop all the extensions from the encoded message.
-	if reflect.ValueOf(value).IsNil() {
-		return fmt.Errorf("proto: SetExtension called with nil value of type %T", value)
+	// Transpose the set of descriptors into a list.
+	var xts []*ExtensionDesc
+	for num, xt := range extDescs {
+		if xt == nil {
+			xt = &ExtensionDesc{Field: int32(num)}
+		}
+		xts = append(xts, xt)
 	}
+	return xts, nil
+}
 
-	extmap := epb.extensionsWrite()
-	extmap[extension.Field] = Extension{desc: extension, value: value}
-	return nil
+// isValidExtension reports whether xtd is a valid extension descriptor for md.
+func isValidExtension(md protoreflect.MessageDescriptor, xtd protoreflect.ExtensionTypeDescriptor) bool {
+	return xtd.ContainingMessage() == md && md.ExtensionRanges().Has(xtd.Number())
 }
 
-// ClearAllExtensions clears all extensions from pb.
-func ClearAllExtensions(pb Message) {
-	epb, ok := extendable(pb)
-	if !ok {
-		return
-	}
-	m := epb.extensionsWrite()
-	for k := range m {
-		delete(m, k)
+// isScalarKind reports whether k is a protobuf scalar kind (except bytes).
+// This function exists for historical reasons since the representation of
+// scalars differs between v1 and v2, where v1 uses *T and v2 uses T.
+func isScalarKind(k reflect.Kind) bool {
+	switch k {
+	case reflect.Bool, reflect.Int32, reflect.Int64, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64, reflect.String:
+		return true
+	default:
+		return false
 	}
 }
 
-// A global registry of extensions.
-// The generated code will register the generated descriptors by calling RegisterExtension.
-
-var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc)
-
-// RegisterExtension is called from the generated code.
-func RegisterExtension(desc *ExtensionDesc) {
-	st := reflect.TypeOf(desc.ExtendedType).Elem()
-	m := extensionMaps[st]
-	if m == nil {
-		m = make(map[int32]*ExtensionDesc)
-		extensionMaps[st] = m
+// clearUnknown removes unknown fields from m where remover.Has reports true.
+func clearUnknown(m protoreflect.Message, remover interface {
+	Has(protoreflect.FieldNumber) bool
+}) {
+	var bo protoreflect.RawFields
+	for bi := m.GetUnknown(); len(bi) > 0; {
+		num, _, n := protowire.ConsumeField(bi)
+		if !remover.Has(num) {
+			bo = append(bo, bi[:n]...)
+		}
+		bi = bi[n:]
 	}
-	if _, ok := m[desc.Field]; ok {
-		panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field)))
+	if bi := m.GetUnknown(); len(bi) != len(bo) {
+		m.SetUnknown(bo)
 	}
-	m[desc.Field] = desc
 }
 
-// RegisteredExtensions returns a map of the registered extensions of a
-// protocol buffer struct, indexed by the extension number.
-// The argument pb should be a nil pointer to the struct type.
-func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc {
-	return extensionMaps[reflect.TypeOf(pb).Elem()]
+type fieldNum protoreflect.FieldNumber
+
+func (n1 fieldNum) Has(n2 protoreflect.FieldNumber) bool {
+	return protoreflect.FieldNumber(n1) == n2
 }
diff --git a/vendor/github.com/golang/protobuf/proto/lib.go b/vendor/github.com/golang/protobuf/proto/lib.go
deleted file mode 100644
index ac4ddbc0..00000000
--- a/vendor/github.com/golang/protobuf/proto/lib.go
+++ /dev/null
@@ -1,898 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-/*
-Package proto converts data structures to and from the wire format of
-protocol buffers.  It works in concert with the Go source code generated
-for .proto files by the protocol compiler.
-
-A summary of the properties of the protocol buffer interface
-for a protocol buffer variable v:
-
-  - Names are turned from camel_case to CamelCase for export.
-  - There are no methods on v to set fields; just treat
-	them as structure fields.
-  - There are getters that return a field's value if set,
-	and return the field's default value if unset.
-	The getters work even if the receiver is a nil message.
-  - The zero value for a struct is its correct initialization state.
-	All desired fields must be set before marshaling.
-  - A Reset() method will restore a protobuf struct to its zero state.
-  - Non-repeated fields are pointers to the values; nil means unset.
-	That is, optional or required field int32 f becomes F *int32.
-  - Repeated fields are slices.
-  - Helper functions are available to aid the setting of fields.
-	msg.Foo = proto.String("hello") // set field
-  - Constants are defined to hold the default values of all fields that
-	have them.  They have the form Default_StructName_FieldName.
-	Because the getter methods handle defaulted values,
-	direct use of these constants should be rare.
-  - Enums are given type names and maps from names to values.
-	Enum values are prefixed by the enclosing message's name, or by the
-	enum's type name if it is a top-level enum. Enum types have a String
-	method, and a Enum method to assist in message construction.
-  - Nested messages, groups and enums have type names prefixed with the name of
-	the surrounding message type.
-  - Extensions are given descriptor names that start with E_,
-	followed by an underscore-delimited list of the nested messages
-	that contain it (if any) followed by the CamelCased name of the
-	extension field itself.  HasExtension, ClearExtension, GetExtension
-	and SetExtension are functions for manipulating extensions.
-  - Oneof field sets are given a single field in their message,
-	with distinguished wrapper types for each possible field value.
-  - Marshal and Unmarshal are functions to encode and decode the wire format.
-
-When the .proto file specifies `syntax="proto3"`, there are some differences:
-
-  - Non-repeated fields of non-message type are values instead of pointers.
-  - Getters are only generated for message and oneof fields.
-  - Enum types do not get an Enum method.
-
-The simplest way to describe this is to see an example.
-Given file test.proto, containing
-
-	package example;
-
-	enum FOO { X = 17; }
-
-	message Test {
-	  required string label = 1;
-	  optional int32 type = 2 [default=77];
-	  repeated int64 reps = 3;
-	  optional group OptionalGroup = 4 {
-	    required string RequiredField = 5;
-	  }
-	  oneof union {
-	    int32 number = 6;
-	    string name = 7;
-	  }
-	}
-
-The resulting file, test.pb.go, is:
-
-	package example
-
-	import proto "github.com/golang/protobuf/proto"
-	import math "math"
-
-	type FOO int32
-	const (
-		FOO_X FOO = 17
-	)
-	var FOO_name = map[int32]string{
-		17: "X",
-	}
-	var FOO_value = map[string]int32{
-		"X": 17,
-	}
-
-	func (x FOO) Enum() *FOO {
-		p := new(FOO)
-		*p = x
-		return p
-	}
-	func (x FOO) String() string {
-		return proto.EnumName(FOO_name, int32(x))
-	}
-	func (x *FOO) UnmarshalJSON(data []byte) error {
-		value, err := proto.UnmarshalJSONEnum(FOO_value, data)
-		if err != nil {
-			return err
-		}
-		*x = FOO(value)
-		return nil
-	}
-
-	type Test struct {
-		Label         *string             `protobuf:"bytes,1,req,name=label" json:"label,omitempty"`
-		Type          *int32              `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"`
-		Reps          []int64             `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"`
-		Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"`
-		// Types that are valid to be assigned to Union:
-		//	*Test_Number
-		//	*Test_Name
-		Union            isTest_Union `protobuf_oneof:"union"`
-		XXX_unrecognized []byte       `json:"-"`
-	}
-	func (m *Test) Reset()         { *m = Test{} }
-	func (m *Test) String() string { return proto.CompactTextString(m) }
-	func (*Test) ProtoMessage() {}
-
-	type isTest_Union interface {
-		isTest_Union()
-	}
-
-	type Test_Number struct {
-		Number int32 `protobuf:"varint,6,opt,name=number"`
-	}
-	type Test_Name struct {
-		Name string `protobuf:"bytes,7,opt,name=name"`
-	}
-
-	func (*Test_Number) isTest_Union() {}
-	func (*Test_Name) isTest_Union()   {}
-
-	func (m *Test) GetUnion() isTest_Union {
-		if m != nil {
-			return m.Union
-		}
-		return nil
-	}
-	const Default_Test_Type int32 = 77
-
-	func (m *Test) GetLabel() string {
-		if m != nil && m.Label != nil {
-			return *m.Label
-		}
-		return ""
-	}
-
-	func (m *Test) GetType() int32 {
-		if m != nil && m.Type != nil {
-			return *m.Type
-		}
-		return Default_Test_Type
-	}
-
-	func (m *Test) GetOptionalgroup() *Test_OptionalGroup {
-		if m != nil {
-			return m.Optionalgroup
-		}
-		return nil
-	}
-
-	type Test_OptionalGroup struct {
-		RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"`
-	}
-	func (m *Test_OptionalGroup) Reset()         { *m = Test_OptionalGroup{} }
-	func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) }
-
-	func (m *Test_OptionalGroup) GetRequiredField() string {
-		if m != nil && m.RequiredField != nil {
-			return *m.RequiredField
-		}
-		return ""
-	}
-
-	func (m *Test) GetNumber() int32 {
-		if x, ok := m.GetUnion().(*Test_Number); ok {
-			return x.Number
-		}
-		return 0
-	}
-
-	func (m *Test) GetName() string {
-		if x, ok := m.GetUnion().(*Test_Name); ok {
-			return x.Name
-		}
-		return ""
-	}
-
-	func init() {
-		proto.RegisterEnum("example.FOO", FOO_name, FOO_value)
-	}
-
-To create and play with a Test object:
-
-	package main
-
-	import (
-		"log"
-
-		"github.com/golang/protobuf/proto"
-		pb "./example.pb"
-	)
-
-	func main() {
-		test := &pb.Test{
-			Label: proto.String("hello"),
-			Type:  proto.Int32(17),
-			Reps:  []int64{1, 2, 3},
-			Optionalgroup: &pb.Test_OptionalGroup{
-				RequiredField: proto.String("good bye"),
-			},
-			Union: &pb.Test_Name{"fred"},
-		}
-		data, err := proto.Marshal(test)
-		if err != nil {
-			log.Fatal("marshaling error: ", err)
-		}
-		newTest := &pb.Test{}
-		err = proto.Unmarshal(data, newTest)
-		if err != nil {
-			log.Fatal("unmarshaling error: ", err)
-		}
-		// Now test and newTest contain the same data.
-		if test.GetLabel() != newTest.GetLabel() {
-			log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
-		}
-		// Use a type switch to determine which oneof was set.
-		switch u := test.Union.(type) {
-		case *pb.Test_Number: // u.Number contains the number.
-		case *pb.Test_Name: // u.Name contains the string.
-		}
-		// etc.
-	}
-*/
-package proto
-
-import (
-	"encoding/json"
-	"fmt"
-	"log"
-	"reflect"
-	"sort"
-	"strconv"
-	"sync"
-)
-
-// Message is implemented by generated protocol buffer messages.
-type Message interface {
-	Reset()
-	String() string
-	ProtoMessage()
-}
-
-// Stats records allocation details about the protocol buffer encoders
-// and decoders.  Useful for tuning the library itself.
-type Stats struct {
-	Emalloc uint64 // mallocs in encode
-	Dmalloc uint64 // mallocs in decode
-	Encode  uint64 // number of encodes
-	Decode  uint64 // number of decodes
-	Chit    uint64 // number of cache hits
-	Cmiss   uint64 // number of cache misses
-	Size    uint64 // number of sizes
-}
-
-// Set to true to enable stats collection.
-const collectStats = false
-
-var stats Stats
-
-// GetStats returns a copy of the global Stats structure.
-func GetStats() Stats { return stats }
-
-// A Buffer is a buffer manager for marshaling and unmarshaling
-// protocol buffers.  It may be reused between invocations to
-// reduce memory usage.  It is not necessary to use a Buffer;
-// the global functions Marshal and Unmarshal create a
-// temporary Buffer and are fine for most applications.
-type Buffer struct {
-	buf   []byte // encode/decode byte stream
-	index int    // read point
-
-	// pools of basic types to amortize allocation.
-	bools   []bool
-	uint32s []uint32
-	uint64s []uint64
-
-	// extra pools, only used with pointer_reflect.go
-	int32s   []int32
-	int64s   []int64
-	float32s []float32
-	float64s []float64
-}
-
-// NewBuffer allocates a new Buffer and initializes its internal data to
-// the contents of the argument slice.
-func NewBuffer(e []byte) *Buffer {
-	return &Buffer{buf: e}
-}
-
-// Reset resets the Buffer, ready for marshaling a new protocol buffer.
-func (p *Buffer) Reset() {
-	p.buf = p.buf[0:0] // for reading/writing
-	p.index = 0        // for reading
-}
-
-// SetBuf replaces the internal buffer with the slice,
-// ready for unmarshaling the contents of the slice.
-func (p *Buffer) SetBuf(s []byte) {
-	p.buf = s
-	p.index = 0
-}
-
-// Bytes returns the contents of the Buffer.
-func (p *Buffer) Bytes() []byte { return p.buf }
-
-/*
- * Helper routines for simplifying the creation of optional fields of basic type.
- */
-
-// Bool is a helper routine that allocates a new bool value
-// to store v and returns a pointer to it.
-func Bool(v bool) *bool {
-	return &v
-}
-
-// Int32 is a helper routine that allocates a new int32 value
-// to store v and returns a pointer to it.
-func Int32(v int32) *int32 {
-	return &v
-}
-
-// Int is a helper routine that allocates a new int32 value
-// to store v and returns a pointer to it, but unlike Int32
-// its argument value is an int.
-func Int(v int) *int32 {
-	p := new(int32)
-	*p = int32(v)
-	return p
-}
-
-// Int64 is a helper routine that allocates a new int64 value
-// to store v and returns a pointer to it.
-func Int64(v int64) *int64 {
-	return &v
-}
-
-// Float32 is a helper routine that allocates a new float32 value
-// to store v and returns a pointer to it.
-func Float32(v float32) *float32 {
-	return &v
-}
-
-// Float64 is a helper routine that allocates a new float64 value
-// to store v and returns a pointer to it.
-func Float64(v float64) *float64 {
-	return &v
-}
-
-// Uint32 is a helper routine that allocates a new uint32 value
-// to store v and returns a pointer to it.
-func Uint32(v uint32) *uint32 {
-	return &v
-}
-
-// Uint64 is a helper routine that allocates a new uint64 value
-// to store v and returns a pointer to it.
-func Uint64(v uint64) *uint64 {
-	return &v
-}
-
-// String is a helper routine that allocates a new string value
-// to store v and returns a pointer to it.
-func String(v string) *string {
-	return &v
-}
-
-// EnumName is a helper function to simplify printing protocol buffer enums
-// by name.  Given an enum map and a value, it returns a useful string.
-func EnumName(m map[int32]string, v int32) string {
-	s, ok := m[v]
-	if ok {
-		return s
-	}
-	return strconv.Itoa(int(v))
-}
-
-// UnmarshalJSONEnum is a helper function to simplify recovering enum int values
-// from their JSON-encoded representation. Given a map from the enum's symbolic
-// names to its int values, and a byte buffer containing the JSON-encoded
-// value, it returns an int32 that can be cast to the enum type by the caller.
-//
-// The function can deal with both JSON representations, numeric and symbolic.
-func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
-	if data[0] == '"' {
-		// New style: enums are strings.
-		var repr string
-		if err := json.Unmarshal(data, &repr); err != nil {
-			return -1, err
-		}
-		val, ok := m[repr]
-		if !ok {
-			return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
-		}
-		return val, nil
-	}
-	// Old style: enums are ints.
-	var val int32
-	if err := json.Unmarshal(data, &val); err != nil {
-		return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
-	}
-	return val, nil
-}
-
-// DebugPrint dumps the encoded data in b in a debugging format with a header
-// including the string s. Used in testing but made available for general debugging.
-func (p *Buffer) DebugPrint(s string, b []byte) {
-	var u uint64
-
-	obuf := p.buf
-	index := p.index
-	p.buf = b
-	p.index = 0
-	depth := 0
-
-	fmt.Printf("\n--- %s ---\n", s)
-
-out:
-	for {
-		for i := 0; i < depth; i++ {
-			fmt.Print("  ")
-		}
-
-		index := p.index
-		if index == len(p.buf) {
-			break
-		}
-
-		op, err := p.DecodeVarint()
-		if err != nil {
-			fmt.Printf("%3d: fetching op err %v\n", index, err)
-			break out
-		}
-		tag := op >> 3
-		wire := op & 7
-
-		switch wire {
-		default:
-			fmt.Printf("%3d: t=%3d unknown wire=%d\n",
-				index, tag, wire)
-			break out
-
-		case WireBytes:
-			var r []byte
-
-			r, err = p.DecodeRawBytes(false)
-			if err != nil {
-				break out
-			}
-			fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r))
-			if len(r) <= 6 {
-				for i := 0; i < len(r); i++ {
-					fmt.Printf(" %.2x", r[i])
-				}
-			} else {
-				for i := 0; i < 3; i++ {
-					fmt.Printf(" %.2x", r[i])
-				}
-				fmt.Printf(" ..")
-				for i := len(r) - 3; i < len(r); i++ {
-					fmt.Printf(" %.2x", r[i])
-				}
-			}
-			fmt.Printf("\n")
-
-		case WireFixed32:
-			u, err = p.DecodeFixed32()
-			if err != nil {
-				fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err)
-				break out
-			}
-			fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u)
-
-		case WireFixed64:
-			u, err = p.DecodeFixed64()
-			if err != nil {
-				fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err)
-				break out
-			}
-			fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u)
-
-		case WireVarint:
-			u, err = p.DecodeVarint()
-			if err != nil {
-				fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err)
-				break out
-			}
-			fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u)
-
-		case WireStartGroup:
-			fmt.Printf("%3d: t=%3d start\n", index, tag)
-			depth++
-
-		case WireEndGroup:
-			depth--
-			fmt.Printf("%3d: t=%3d end\n", index, tag)
-		}
-	}
-
-	if depth != 0 {
-		fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth)
-	}
-	fmt.Printf("\n")
-
-	p.buf = obuf
-	p.index = index
-}
-
-// SetDefaults sets unset protocol buffer fields to their default values.
-// It only modifies fields that are both unset and have defined defaults.
-// It recursively sets default values in any non-nil sub-messages.
-func SetDefaults(pb Message) {
-	setDefaults(reflect.ValueOf(pb), true, false)
-}
-
-// v is a pointer to a struct.
-func setDefaults(v reflect.Value, recur, zeros bool) {
-	v = v.Elem()
-
-	defaultMu.RLock()
-	dm, ok := defaults[v.Type()]
-	defaultMu.RUnlock()
-	if !ok {
-		dm = buildDefaultMessage(v.Type())
-		defaultMu.Lock()
-		defaults[v.Type()] = dm
-		defaultMu.Unlock()
-	}
-
-	for _, sf := range dm.scalars {
-		f := v.Field(sf.index)
-		if !f.IsNil() {
-			// field already set
-			continue
-		}
-		dv := sf.value
-		if dv == nil && !zeros {
-			// no explicit default, and don't want to set zeros
-			continue
-		}
-		fptr := f.Addr().Interface() // **T
-		// TODO: Consider batching the allocations we do here.
-		switch sf.kind {
-		case reflect.Bool:
-			b := new(bool)
-			if dv != nil {
-				*b = dv.(bool)
-			}
-			*(fptr.(**bool)) = b
-		case reflect.Float32:
-			f := new(float32)
-			if dv != nil {
-				*f = dv.(float32)
-			}
-			*(fptr.(**float32)) = f
-		case reflect.Float64:
-			f := new(float64)
-			if dv != nil {
-				*f = dv.(float64)
-			}
-			*(fptr.(**float64)) = f
-		case reflect.Int32:
-			// might be an enum
-			if ft := f.Type(); ft != int32PtrType {
-				// enum
-				f.Set(reflect.New(ft.Elem()))
-				if dv != nil {
-					f.Elem().SetInt(int64(dv.(int32)))
-				}
-			} else {
-				// int32 field
-				i := new(int32)
-				if dv != nil {
-					*i = dv.(int32)
-				}
-				*(fptr.(**int32)) = i
-			}
-		case reflect.Int64:
-			i := new(int64)
-			if dv != nil {
-				*i = dv.(int64)
-			}
-			*(fptr.(**int64)) = i
-		case reflect.String:
-			s := new(string)
-			if dv != nil {
-				*s = dv.(string)
-			}
-			*(fptr.(**string)) = s
-		case reflect.Uint8:
-			// exceptional case: []byte
-			var b []byte
-			if dv != nil {
-				db := dv.([]byte)
-				b = make([]byte, len(db))
-				copy(b, db)
-			} else {
-				b = []byte{}
-			}
-			*(fptr.(*[]byte)) = b
-		case reflect.Uint32:
-			u := new(uint32)
-			if dv != nil {
-				*u = dv.(uint32)
-			}
-			*(fptr.(**uint32)) = u
-		case reflect.Uint64:
-			u := new(uint64)
-			if dv != nil {
-				*u = dv.(uint64)
-			}
-			*(fptr.(**uint64)) = u
-		default:
-			log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind)
-		}
-	}
-
-	for _, ni := range dm.nested {
-		f := v.Field(ni)
-		// f is *T or []*T or map[T]*T
-		switch f.Kind() {
-		case reflect.Ptr:
-			if f.IsNil() {
-				continue
-			}
-			setDefaults(f, recur, zeros)
-
-		case reflect.Slice:
-			for i := 0; i < f.Len(); i++ {
-				e := f.Index(i)
-				if e.IsNil() {
-					continue
-				}
-				setDefaults(e, recur, zeros)
-			}
-
-		case reflect.Map:
-			for _, k := range f.MapKeys() {
-				e := f.MapIndex(k)
-				if e.IsNil() {
-					continue
-				}
-				setDefaults(e, recur, zeros)
-			}
-		}
-	}
-}
-
-var (
-	// defaults maps a protocol buffer struct type to a slice of the fields,
-	// with its scalar fields set to their proto-declared non-zero default values.
-	defaultMu sync.RWMutex
-	defaults  = make(map[reflect.Type]defaultMessage)
-
-	int32PtrType = reflect.TypeOf((*int32)(nil))
-)
-
-// defaultMessage represents information about the default values of a message.
-type defaultMessage struct {
-	scalars []scalarField
-	nested  []int // struct field index of nested messages
-}
-
-type scalarField struct {
-	index int          // struct field index
-	kind  reflect.Kind // element type (the T in *T or []T)
-	value interface{}  // the proto-declared default value, or nil
-}
-
-// t is a struct type.
-func buildDefaultMessage(t reflect.Type) (dm defaultMessage) {
-	sprop := GetProperties(t)
-	for _, prop := range sprop.Prop {
-		fi, ok := sprop.decoderTags.get(prop.Tag)
-		if !ok {
-			// XXX_unrecognized
-			continue
-		}
-		ft := t.Field(fi).Type
-
-		sf, nested, err := fieldDefault(ft, prop)
-		switch {
-		case err != nil:
-			log.Print(err)
-		case nested:
-			dm.nested = append(dm.nested, fi)
-		case sf != nil:
-			sf.index = fi
-			dm.scalars = append(dm.scalars, *sf)
-		}
-	}
-
-	return dm
-}
-
-// fieldDefault returns the scalarField for field type ft.
-// sf will be nil if the field can not have a default.
-// nestedMessage will be true if this is a nested message.
-// Note that sf.index is not set on return.
-func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) {
-	var canHaveDefault bool
-	switch ft.Kind() {
-	case reflect.Ptr:
-		if ft.Elem().Kind() == reflect.Struct {
-			nestedMessage = true
-		} else {
-			canHaveDefault = true // proto2 scalar field
-		}
-
-	case reflect.Slice:
-		switch ft.Elem().Kind() {
-		case reflect.Ptr:
-			nestedMessage = true // repeated message
-		case reflect.Uint8:
-			canHaveDefault = true // bytes field
-		}
-
-	case reflect.Map:
-		if ft.Elem().Kind() == reflect.Ptr {
-			nestedMessage = true // map with message values
-		}
-	}
-
-	if !canHaveDefault {
-		if nestedMessage {
-			return nil, true, nil
-		}
-		return nil, false, nil
-	}
-
-	// We now know that ft is a pointer or slice.
-	sf = &scalarField{kind: ft.Elem().Kind()}
-
-	// scalar fields without defaults
-	if !prop.HasDefault {
-		return sf, false, nil
-	}
-
-	// a scalar field: either *T or []byte
-	switch ft.Elem().Kind() {
-	case reflect.Bool:
-		x, err := strconv.ParseBool(prop.Default)
-		if err != nil {
-			return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err)
-		}
-		sf.value = x
-	case reflect.Float32:
-		x, err := strconv.ParseFloat(prop.Default, 32)
-		if err != nil {
-			return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err)
-		}
-		sf.value = float32(x)
-	case reflect.Float64:
-		x, err := strconv.ParseFloat(prop.Default, 64)
-		if err != nil {
-			return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err)
-		}
-		sf.value = x
-	case reflect.Int32:
-		x, err := strconv.ParseInt(prop.Default, 10, 32)
-		if err != nil {
-			return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err)
-		}
-		sf.value = int32(x)
-	case reflect.Int64:
-		x, err := strconv.ParseInt(prop.Default, 10, 64)
-		if err != nil {
-			return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err)
-		}
-		sf.value = x
-	case reflect.String:
-		sf.value = prop.Default
-	case reflect.Uint8:
-		// []byte (not *uint8)
-		sf.value = []byte(prop.Default)
-	case reflect.Uint32:
-		x, err := strconv.ParseUint(prop.Default, 10, 32)
-		if err != nil {
-			return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err)
-		}
-		sf.value = uint32(x)
-	case reflect.Uint64:
-		x, err := strconv.ParseUint(prop.Default, 10, 64)
-		if err != nil {
-			return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err)
-		}
-		sf.value = x
-	default:
-		return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind())
-	}
-
-	return sf, false, nil
-}
-
-// Map fields may have key types of non-float scalars, strings and enums.
-// The easiest way to sort them in some deterministic order is to use fmt.
-// If this turns out to be inefficient we can always consider other options,
-// such as doing a Schwartzian transform.
-
-func mapKeys(vs []reflect.Value) sort.Interface {
-	s := mapKeySorter{
-		vs: vs,
-		// default Less function: textual comparison
-		less: func(a, b reflect.Value) bool {
-			return fmt.Sprint(a.Interface()) < fmt.Sprint(b.Interface())
-		},
-	}
-
-	// Type specialization per https://developers.google.com/protocol-buffers/docs/proto#maps;
-	// numeric keys are sorted numerically.
-	if len(vs) == 0 {
-		return s
-	}
-	switch vs[0].Kind() {
-	case reflect.Int32, reflect.Int64:
-		s.less = func(a, b reflect.Value) bool { return a.Int() < b.Int() }
-	case reflect.Uint32, reflect.Uint64:
-		s.less = func(a, b reflect.Value) bool { return a.Uint() < b.Uint() }
-	}
-
-	return s
-}
-
-type mapKeySorter struct {
-	vs   []reflect.Value
-	less func(a, b reflect.Value) bool
-}
-
-func (s mapKeySorter) Len() int      { return len(s.vs) }
-func (s mapKeySorter) Swap(i, j int) { s.vs[i], s.vs[j] = s.vs[j], s.vs[i] }
-func (s mapKeySorter) Less(i, j int) bool {
-	return s.less(s.vs[i], s.vs[j])
-}
-
-// isProto3Zero reports whether v is a zero proto3 value.
-func isProto3Zero(v reflect.Value) bool {
-	switch v.Kind() {
-	case reflect.Bool:
-		return !v.Bool()
-	case reflect.Int32, reflect.Int64:
-		return v.Int() == 0
-	case reflect.Uint32, reflect.Uint64:
-		return v.Uint() == 0
-	case reflect.Float32, reflect.Float64:
-		return v.Float() == 0
-	case reflect.String:
-		return v.String() == ""
-	}
-	return false
-}
-
-// ProtoPackageIsVersion2 is referenced from generated protocol buffer files
-// to assert that that code is compatible with this version of the proto package.
-const ProtoPackageIsVersion2 = true
-
-// ProtoPackageIsVersion1 is referenced from generated protocol buffer files
-// to assert that that code is compatible with this version of the proto package.
-const ProtoPackageIsVersion1 = true
diff --git a/vendor/github.com/golang/protobuf/proto/message_set.go b/vendor/github.com/golang/protobuf/proto/message_set.go
deleted file mode 100644
index fd982dec..00000000
--- a/vendor/github.com/golang/protobuf/proto/message_set.go
+++ /dev/null
@@ -1,311 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-/*
- * Support for message sets.
- */
-
-import (
-	"bytes"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"reflect"
-	"sort"
-)
-
-// errNoMessageTypeID occurs when a protocol buffer does not have a message type ID.
-// A message type ID is required for storing a protocol buffer in a message set.
-var errNoMessageTypeID = errors.New("proto does not have a message type ID")
-
-// The first two types (_MessageSet_Item and messageSet)
-// model what the protocol compiler produces for the following protocol message:
-//   message MessageSet {
-//     repeated group Item = 1 {
-//       required int32 type_id = 2;
-//       required string message = 3;
-//     };
-//   }
-// That is the MessageSet wire format. We can't use a proto to generate these
-// because that would introduce a circular dependency between it and this package.
-
-type _MessageSet_Item struct {
-	TypeId  *int32 `protobuf:"varint,2,req,name=type_id"`
-	Message []byte `protobuf:"bytes,3,req,name=message"`
-}
-
-type messageSet struct {
-	Item             []*_MessageSet_Item `protobuf:"group,1,rep"`
-	XXX_unrecognized []byte
-	// TODO: caching?
-}
-
-// Make sure messageSet is a Message.
-var _ Message = (*messageSet)(nil)
-
-// messageTypeIder is an interface satisfied by a protocol buffer type
-// that may be stored in a MessageSet.
-type messageTypeIder interface {
-	MessageTypeId() int32
-}
-
-func (ms *messageSet) find(pb Message) *_MessageSet_Item {
-	mti, ok := pb.(messageTypeIder)
-	if !ok {
-		return nil
-	}
-	id := mti.MessageTypeId()
-	for _, item := range ms.Item {
-		if *item.TypeId == id {
-			return item
-		}
-	}
-	return nil
-}
-
-func (ms *messageSet) Has(pb Message) bool {
-	if ms.find(pb) != nil {
-		return true
-	}
-	return false
-}
-
-func (ms *messageSet) Unmarshal(pb Message) error {
-	if item := ms.find(pb); item != nil {
-		return Unmarshal(item.Message, pb)
-	}
-	if _, ok := pb.(messageTypeIder); !ok {
-		return errNoMessageTypeID
-	}
-	return nil // TODO: return error instead?
-}
-
-func (ms *messageSet) Marshal(pb Message) error {
-	msg, err := Marshal(pb)
-	if err != nil {
-		return err
-	}
-	if item := ms.find(pb); item != nil {
-		// reuse existing item
-		item.Message = msg
-		return nil
-	}
-
-	mti, ok := pb.(messageTypeIder)
-	if !ok {
-		return errNoMessageTypeID
-	}
-
-	mtid := mti.MessageTypeId()
-	ms.Item = append(ms.Item, &_MessageSet_Item{
-		TypeId:  &mtid,
-		Message: msg,
-	})
-	return nil
-}
-
-func (ms *messageSet) Reset()         { *ms = messageSet{} }
-func (ms *messageSet) String() string { return CompactTextString(ms) }
-func (*messageSet) ProtoMessage()     {}
-
-// Support for the message_set_wire_format message option.
-
-func skipVarint(buf []byte) []byte {
-	i := 0
-	for ; buf[i]&0x80 != 0; i++ {
-	}
-	return buf[i+1:]
-}
-
-// MarshalMessageSet encodes the extension map represented by m in the message set wire format.
-// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option.
-func MarshalMessageSet(exts interface{}) ([]byte, error) {
-	var m map[int32]Extension
-	switch exts := exts.(type) {
-	case *XXX_InternalExtensions:
-		if err := encodeExtensions(exts); err != nil {
-			return nil, err
-		}
-		m, _ = exts.extensionsRead()
-	case map[int32]Extension:
-		if err := encodeExtensionsMap(exts); err != nil {
-			return nil, err
-		}
-		m = exts
-	default:
-		return nil, errors.New("proto: not an extension map")
-	}
-
-	// Sort extension IDs to provide a deterministic encoding.
-	// See also enc_map in encode.go.
-	ids := make([]int, 0, len(m))
-	for id := range m {
-		ids = append(ids, int(id))
-	}
-	sort.Ints(ids)
-
-	ms := &messageSet{Item: make([]*_MessageSet_Item, 0, len(m))}
-	for _, id := range ids {
-		e := m[int32(id)]
-		// Remove the wire type and field number varint, as well as the length varint.
-		msg := skipVarint(skipVarint(e.enc))
-
-		ms.Item = append(ms.Item, &_MessageSet_Item{
-			TypeId:  Int32(int32(id)),
-			Message: msg,
-		})
-	}
-	return Marshal(ms)
-}
-
-// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format.
-// It is called by generated Unmarshal methods on protocol buffer messages with the message_set_wire_format option.
-func UnmarshalMessageSet(buf []byte, exts interface{}) error {
-	var m map[int32]Extension
-	switch exts := exts.(type) {
-	case *XXX_InternalExtensions:
-		m = exts.extensionsWrite()
-	case map[int32]Extension:
-		m = exts
-	default:
-		return errors.New("proto: not an extension map")
-	}
-
-	ms := new(messageSet)
-	if err := Unmarshal(buf, ms); err != nil {
-		return err
-	}
-	for _, item := range ms.Item {
-		id := *item.TypeId
-		msg := item.Message
-
-		// Restore wire type and field number varint, plus length varint.
-		// Be careful to preserve duplicate items.
-		b := EncodeVarint(uint64(id)<<3 | WireBytes)
-		if ext, ok := m[id]; ok {
-			// Existing data; rip off the tag and length varint
-			// so we join the new data correctly.
-			// We can assume that ext.enc is set because we are unmarshaling.
-			o := ext.enc[len(b):]   // skip wire type and field number
-			_, n := DecodeVarint(o) // calculate length of length varint
-			o = o[n:]               // skip length varint
-			msg = append(o, msg...) // join old data and new data
-		}
-		b = append(b, EncodeVarint(uint64(len(msg)))...)
-		b = append(b, msg...)
-
-		m[id] = Extension{enc: b}
-	}
-	return nil
-}
-
-// MarshalMessageSetJSON encodes the extension map represented by m in JSON format.
-// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
-func MarshalMessageSetJSON(exts interface{}) ([]byte, error) {
-	var m map[int32]Extension
-	switch exts := exts.(type) {
-	case *XXX_InternalExtensions:
-		m, _ = exts.extensionsRead()
-	case map[int32]Extension:
-		m = exts
-	default:
-		return nil, errors.New("proto: not an extension map")
-	}
-	var b bytes.Buffer
-	b.WriteByte('{')
-
-	// Process the map in key order for deterministic output.
-	ids := make([]int32, 0, len(m))
-	for id := range m {
-		ids = append(ids, id)
-	}
-	sort.Sort(int32Slice(ids)) // int32Slice defined in text.go
-
-	for i, id := range ids {
-		ext := m[id]
-		if i > 0 {
-			b.WriteByte(',')
-		}
-
-		msd, ok := messageSetMap[id]
-		if !ok {
-			// Unknown type; we can't render it, so skip it.
-			continue
-		}
-		fmt.Fprintf(&b, `"[%s]":`, msd.name)
-
-		x := ext.value
-		if x == nil {
-			x = reflect.New(msd.t.Elem()).Interface()
-			if err := Unmarshal(ext.enc, x.(Message)); err != nil {
-				return nil, err
-			}
-		}
-		d, err := json.Marshal(x)
-		if err != nil {
-			return nil, err
-		}
-		b.Write(d)
-	}
-	b.WriteByte('}')
-	return b.Bytes(), nil
-}
-
-// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format.
-// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
-func UnmarshalMessageSetJSON(buf []byte, exts interface{}) error {
-	// Common-case fast path.
-	if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) {
-		return nil
-	}
-
-	// This is fairly tricky, and it's not clear that it is needed.
-	return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented")
-}
-
-// A global registry of types that can be used in a MessageSet.
-
-var messageSetMap = make(map[int32]messageSetDesc)
-
-type messageSetDesc struct {
-	t    reflect.Type // pointer to struct
-	name string
-}
-
-// RegisterMessageSetType is called from the generated code.
-func RegisterMessageSetType(m Message, fieldNum int32, name string) {
-	messageSetMap[fieldNum] = messageSetDesc{
-		t:    reflect.TypeOf(m),
-		name: name,
-	}
-}
diff --git a/vendor/github.com/golang/protobuf/proto/pointer_reflect.go b/vendor/github.com/golang/protobuf/proto/pointer_reflect.go
deleted file mode 100644
index fb512e2e..00000000
--- a/vendor/github.com/golang/protobuf/proto/pointer_reflect.go
+++ /dev/null
@@ -1,484 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2012 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// +build appengine js
-
-// This file contains an implementation of proto field accesses using package reflect.
-// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can
-// be used on App Engine.
-
-package proto
-
-import (
-	"math"
-	"reflect"
-)
-
-// A structPointer is a pointer to a struct.
-type structPointer struct {
-	v reflect.Value
-}
-
-// toStructPointer returns a structPointer equivalent to the given reflect value.
-// The reflect value must itself be a pointer to a struct.
-func toStructPointer(v reflect.Value) structPointer {
-	return structPointer{v}
-}
-
-// IsNil reports whether p is nil.
-func structPointer_IsNil(p structPointer) bool {
-	return p.v.IsNil()
-}
-
-// Interface returns the struct pointer as an interface value.
-func structPointer_Interface(p structPointer, _ reflect.Type) interface{} {
-	return p.v.Interface()
-}
-
-// A field identifies a field in a struct, accessible from a structPointer.
-// In this implementation, a field is identified by the sequence of field indices
-// passed to reflect's FieldByIndex.
-type field []int
-
-// toField returns a field equivalent to the given reflect field.
-func toField(f *reflect.StructField) field {
-	return f.Index
-}
-
-// invalidField is an invalid field identifier.
-var invalidField = field(nil)
-
-// IsValid reports whether the field identifier is valid.
-func (f field) IsValid() bool { return f != nil }
-
-// field returns the given field in the struct as a reflect value.
-func structPointer_field(p structPointer, f field) reflect.Value {
-	// Special case: an extension map entry with a value of type T
-	// passes a *T to the struct-handling code with a zero field,
-	// expecting that it will be treated as equivalent to *struct{ X T },
-	// which has the same memory layout. We have to handle that case
-	// specially, because reflect will panic if we call FieldByIndex on a
-	// non-struct.
-	if f == nil {
-		return p.v.Elem()
-	}
-
-	return p.v.Elem().FieldByIndex(f)
-}
-
-// ifield returns the given field in the struct as an interface value.
-func structPointer_ifield(p structPointer, f field) interface{} {
-	return structPointer_field(p, f).Addr().Interface()
-}
-
-// Bytes returns the address of a []byte field in the struct.
-func structPointer_Bytes(p structPointer, f field) *[]byte {
-	return structPointer_ifield(p, f).(*[]byte)
-}
-
-// BytesSlice returns the address of a [][]byte field in the struct.
-func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
-	return structPointer_ifield(p, f).(*[][]byte)
-}
-
-// Bool returns the address of a *bool field in the struct.
-func structPointer_Bool(p structPointer, f field) **bool {
-	return structPointer_ifield(p, f).(**bool)
-}
-
-// BoolVal returns the address of a bool field in the struct.
-func structPointer_BoolVal(p structPointer, f field) *bool {
-	return structPointer_ifield(p, f).(*bool)
-}
-
-// BoolSlice returns the address of a []bool field in the struct.
-func structPointer_BoolSlice(p structPointer, f field) *[]bool {
-	return structPointer_ifield(p, f).(*[]bool)
-}
-
-// String returns the address of a *string field in the struct.
-func structPointer_String(p structPointer, f field) **string {
-	return structPointer_ifield(p, f).(**string)
-}
-
-// StringVal returns the address of a string field in the struct.
-func structPointer_StringVal(p structPointer, f field) *string {
-	return structPointer_ifield(p, f).(*string)
-}
-
-// StringSlice returns the address of a []string field in the struct.
-func structPointer_StringSlice(p structPointer, f field) *[]string {
-	return structPointer_ifield(p, f).(*[]string)
-}
-
-// Extensions returns the address of an extension map field in the struct.
-func structPointer_Extensions(p structPointer, f field) *XXX_InternalExtensions {
-	return structPointer_ifield(p, f).(*XXX_InternalExtensions)
-}
-
-// ExtMap returns the address of an extension map field in the struct.
-func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
-	return structPointer_ifield(p, f).(*map[int32]Extension)
-}
-
-// NewAt returns the reflect.Value for a pointer to a field in the struct.
-func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
-	return structPointer_field(p, f).Addr()
-}
-
-// SetStructPointer writes a *struct field in the struct.
-func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
-	structPointer_field(p, f).Set(q.v)
-}
-
-// GetStructPointer reads a *struct field in the struct.
-func structPointer_GetStructPointer(p structPointer, f field) structPointer {
-	return structPointer{structPointer_field(p, f)}
-}
-
-// StructPointerSlice the address of a []*struct field in the struct.
-func structPointer_StructPointerSlice(p structPointer, f field) structPointerSlice {
-	return structPointerSlice{structPointer_field(p, f)}
-}
-
-// A structPointerSlice represents the address of a slice of pointers to structs
-// (themselves messages or groups). That is, v.Type() is *[]*struct{...}.
-type structPointerSlice struct {
-	v reflect.Value
-}
-
-func (p structPointerSlice) Len() int                  { return p.v.Len() }
-func (p structPointerSlice) Index(i int) structPointer { return structPointer{p.v.Index(i)} }
-func (p structPointerSlice) Append(q structPointer) {
-	p.v.Set(reflect.Append(p.v, q.v))
-}
-
-var (
-	int32Type   = reflect.TypeOf(int32(0))
-	uint32Type  = reflect.TypeOf(uint32(0))
-	float32Type = reflect.TypeOf(float32(0))
-	int64Type   = reflect.TypeOf(int64(0))
-	uint64Type  = reflect.TypeOf(uint64(0))
-	float64Type = reflect.TypeOf(float64(0))
-)
-
-// A word32 represents a field of type *int32, *uint32, *float32, or *enum.
-// That is, v.Type() is *int32, *uint32, *float32, or *enum and v is assignable.
-type word32 struct {
-	v reflect.Value
-}
-
-// IsNil reports whether p is nil.
-func word32_IsNil(p word32) bool {
-	return p.v.IsNil()
-}
-
-// Set sets p to point at a newly allocated word with bits set to x.
-func word32_Set(p word32, o *Buffer, x uint32) {
-	t := p.v.Type().Elem()
-	switch t {
-	case int32Type:
-		if len(o.int32s) == 0 {
-			o.int32s = make([]int32, uint32PoolSize)
-		}
-		o.int32s[0] = int32(x)
-		p.v.Set(reflect.ValueOf(&o.int32s[0]))
-		o.int32s = o.int32s[1:]
-		return
-	case uint32Type:
-		if len(o.uint32s) == 0 {
-			o.uint32s = make([]uint32, uint32PoolSize)
-		}
-		o.uint32s[0] = x
-		p.v.Set(reflect.ValueOf(&o.uint32s[0]))
-		o.uint32s = o.uint32s[1:]
-		return
-	case float32Type:
-		if len(o.float32s) == 0 {
-			o.float32s = make([]float32, uint32PoolSize)
-		}
-		o.float32s[0] = math.Float32frombits(x)
-		p.v.Set(reflect.ValueOf(&o.float32s[0]))
-		o.float32s = o.float32s[1:]
-		return
-	}
-
-	// must be enum
-	p.v.Set(reflect.New(t))
-	p.v.Elem().SetInt(int64(int32(x)))
-}
-
-// Get gets the bits pointed at by p, as a uint32.
-func word32_Get(p word32) uint32 {
-	elem := p.v.Elem()
-	switch elem.Kind() {
-	case reflect.Int32:
-		return uint32(elem.Int())
-	case reflect.Uint32:
-		return uint32(elem.Uint())
-	case reflect.Float32:
-		return math.Float32bits(float32(elem.Float()))
-	}
-	panic("unreachable")
-}
-
-// Word32 returns a reference to a *int32, *uint32, *float32, or *enum field in the struct.
-func structPointer_Word32(p structPointer, f field) word32 {
-	return word32{structPointer_field(p, f)}
-}
-
-// A word32Val represents a field of type int32, uint32, float32, or enum.
-// That is, v.Type() is int32, uint32, float32, or enum and v is assignable.
-type word32Val struct {
-	v reflect.Value
-}
-
-// Set sets *p to x.
-func word32Val_Set(p word32Val, x uint32) {
-	switch p.v.Type() {
-	case int32Type:
-		p.v.SetInt(int64(x))
-		return
-	case uint32Type:
-		p.v.SetUint(uint64(x))
-		return
-	case float32Type:
-		p.v.SetFloat(float64(math.Float32frombits(x)))
-		return
-	}
-
-	// must be enum
-	p.v.SetInt(int64(int32(x)))
-}
-
-// Get gets the bits pointed at by p, as a uint32.
-func word32Val_Get(p word32Val) uint32 {
-	elem := p.v
-	switch elem.Kind() {
-	case reflect.Int32:
-		return uint32(elem.Int())
-	case reflect.Uint32:
-		return uint32(elem.Uint())
-	case reflect.Float32:
-		return math.Float32bits(float32(elem.Float()))
-	}
-	panic("unreachable")
-}
-
-// Word32Val returns a reference to a int32, uint32, float32, or enum field in the struct.
-func structPointer_Word32Val(p structPointer, f field) word32Val {
-	return word32Val{structPointer_field(p, f)}
-}
-
-// A word32Slice is a slice of 32-bit values.
-// That is, v.Type() is []int32, []uint32, []float32, or []enum.
-type word32Slice struct {
-	v reflect.Value
-}
-
-func (p word32Slice) Append(x uint32) {
-	n, m := p.v.Len(), p.v.Cap()
-	if n < m {
-		p.v.SetLen(n + 1)
-	} else {
-		t := p.v.Type().Elem()
-		p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
-	}
-	elem := p.v.Index(n)
-	switch elem.Kind() {
-	case reflect.Int32:
-		elem.SetInt(int64(int32(x)))
-	case reflect.Uint32:
-		elem.SetUint(uint64(x))
-	case reflect.Float32:
-		elem.SetFloat(float64(math.Float32frombits(x)))
-	}
-}
-
-func (p word32Slice) Len() int {
-	return p.v.Len()
-}
-
-func (p word32Slice) Index(i int) uint32 {
-	elem := p.v.Index(i)
-	switch elem.Kind() {
-	case reflect.Int32:
-		return uint32(elem.Int())
-	case reflect.Uint32:
-		return uint32(elem.Uint())
-	case reflect.Float32:
-		return math.Float32bits(float32(elem.Float()))
-	}
-	panic("unreachable")
-}
-
-// Word32Slice returns a reference to a []int32, []uint32, []float32, or []enum field in the struct.
-func structPointer_Word32Slice(p structPointer, f field) word32Slice {
-	return word32Slice{structPointer_field(p, f)}
-}
-
-// word64 is like word32 but for 64-bit values.
-type word64 struct {
-	v reflect.Value
-}
-
-func word64_Set(p word64, o *Buffer, x uint64) {
-	t := p.v.Type().Elem()
-	switch t {
-	case int64Type:
-		if len(o.int64s) == 0 {
-			o.int64s = make([]int64, uint64PoolSize)
-		}
-		o.int64s[0] = int64(x)
-		p.v.Set(reflect.ValueOf(&o.int64s[0]))
-		o.int64s = o.int64s[1:]
-		return
-	case uint64Type:
-		if len(o.uint64s) == 0 {
-			o.uint64s = make([]uint64, uint64PoolSize)
-		}
-		o.uint64s[0] = x
-		p.v.Set(reflect.ValueOf(&o.uint64s[0]))
-		o.uint64s = o.uint64s[1:]
-		return
-	case float64Type:
-		if len(o.float64s) == 0 {
-			o.float64s = make([]float64, uint64PoolSize)
-		}
-		o.float64s[0] = math.Float64frombits(x)
-		p.v.Set(reflect.ValueOf(&o.float64s[0]))
-		o.float64s = o.float64s[1:]
-		return
-	}
-	panic("unreachable")
-}
-
-func word64_IsNil(p word64) bool {
-	return p.v.IsNil()
-}
-
-func word64_Get(p word64) uint64 {
-	elem := p.v.Elem()
-	switch elem.Kind() {
-	case reflect.Int64:
-		return uint64(elem.Int())
-	case reflect.Uint64:
-		return elem.Uint()
-	case reflect.Float64:
-		return math.Float64bits(elem.Float())
-	}
-	panic("unreachable")
-}
-
-func structPointer_Word64(p structPointer, f field) word64 {
-	return word64{structPointer_field(p, f)}
-}
-
-// word64Val is like word32Val but for 64-bit values.
-type word64Val struct {
-	v reflect.Value
-}
-
-func word64Val_Set(p word64Val, o *Buffer, x uint64) {
-	switch p.v.Type() {
-	case int64Type:
-		p.v.SetInt(int64(x))
-		return
-	case uint64Type:
-		p.v.SetUint(x)
-		return
-	case float64Type:
-		p.v.SetFloat(math.Float64frombits(x))
-		return
-	}
-	panic("unreachable")
-}
-
-func word64Val_Get(p word64Val) uint64 {
-	elem := p.v
-	switch elem.Kind() {
-	case reflect.Int64:
-		return uint64(elem.Int())
-	case reflect.Uint64:
-		return elem.Uint()
-	case reflect.Float64:
-		return math.Float64bits(elem.Float())
-	}
-	panic("unreachable")
-}
-
-func structPointer_Word64Val(p structPointer, f field) word64Val {
-	return word64Val{structPointer_field(p, f)}
-}
-
-type word64Slice struct {
-	v reflect.Value
-}
-
-func (p word64Slice) Append(x uint64) {
-	n, m := p.v.Len(), p.v.Cap()
-	if n < m {
-		p.v.SetLen(n + 1)
-	} else {
-		t := p.v.Type().Elem()
-		p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
-	}
-	elem := p.v.Index(n)
-	switch elem.Kind() {
-	case reflect.Int64:
-		elem.SetInt(int64(int64(x)))
-	case reflect.Uint64:
-		elem.SetUint(uint64(x))
-	case reflect.Float64:
-		elem.SetFloat(float64(math.Float64frombits(x)))
-	}
-}
-
-func (p word64Slice) Len() int {
-	return p.v.Len()
-}
-
-func (p word64Slice) Index(i int) uint64 {
-	elem := p.v.Index(i)
-	switch elem.Kind() {
-	case reflect.Int64:
-		return uint64(elem.Int())
-	case reflect.Uint64:
-		return uint64(elem.Uint())
-	case reflect.Float64:
-		return math.Float64bits(float64(elem.Float()))
-	}
-	panic("unreachable")
-}
-
-func structPointer_Word64Slice(p structPointer, f field) word64Slice {
-	return word64Slice{structPointer_field(p, f)}
-}
diff --git a/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go b/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go
deleted file mode 100644
index 6b5567d4..00000000
--- a/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go
+++ /dev/null
@@ -1,270 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2012 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// +build !appengine,!js
-
-// This file contains the implementation of the proto field accesses using package unsafe.
-
-package proto
-
-import (
-	"reflect"
-	"unsafe"
-)
-
-// NOTE: These type_Foo functions would more idiomatically be methods,
-// but Go does not allow methods on pointer types, and we must preserve
-// some pointer type for the garbage collector. We use these
-// funcs with clunky names as our poor approximation to methods.
-//
-// An alternative would be
-//	type structPointer struct { p unsafe.Pointer }
-// but that does not registerize as well.
-
-// A structPointer is a pointer to a struct.
-type structPointer unsafe.Pointer
-
-// toStructPointer returns a structPointer equivalent to the given reflect value.
-func toStructPointer(v reflect.Value) structPointer {
-	return structPointer(unsafe.Pointer(v.Pointer()))
-}
-
-// IsNil reports whether p is nil.
-func structPointer_IsNil(p structPointer) bool {
-	return p == nil
-}
-
-// Interface returns the struct pointer, assumed to have element type t,
-// as an interface value.
-func structPointer_Interface(p structPointer, t reflect.Type) interface{} {
-	return reflect.NewAt(t, unsafe.Pointer(p)).Interface()
-}
-
-// A field identifies a field in a struct, accessible from a structPointer.
-// In this implementation, a field is identified by its byte offset from the start of the struct.
-type field uintptr
-
-// toField returns a field equivalent to the given reflect field.
-func toField(f *reflect.StructField) field {
-	return field(f.Offset)
-}
-
-// invalidField is an invalid field identifier.
-const invalidField = ^field(0)
-
-// IsValid reports whether the field identifier is valid.
-func (f field) IsValid() bool {
-	return f != ^field(0)
-}
-
-// Bytes returns the address of a []byte field in the struct.
-func structPointer_Bytes(p structPointer, f field) *[]byte {
-	return (*[]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// BytesSlice returns the address of a [][]byte field in the struct.
-func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
-	return (*[][]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// Bool returns the address of a *bool field in the struct.
-func structPointer_Bool(p structPointer, f field) **bool {
-	return (**bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// BoolVal returns the address of a bool field in the struct.
-func structPointer_BoolVal(p structPointer, f field) *bool {
-	return (*bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// BoolSlice returns the address of a []bool field in the struct.
-func structPointer_BoolSlice(p structPointer, f field) *[]bool {
-	return (*[]bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// String returns the address of a *string field in the struct.
-func structPointer_String(p structPointer, f field) **string {
-	return (**string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// StringVal returns the address of a string field in the struct.
-func structPointer_StringVal(p structPointer, f field) *string {
-	return (*string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// StringSlice returns the address of a []string field in the struct.
-func structPointer_StringSlice(p structPointer, f field) *[]string {
-	return (*[]string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// ExtMap returns the address of an extension map field in the struct.
-func structPointer_Extensions(p structPointer, f field) *XXX_InternalExtensions {
-	return (*XXX_InternalExtensions)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
-	return (*map[int32]Extension)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// NewAt returns the reflect.Value for a pointer to a field in the struct.
-func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
-	return reflect.NewAt(typ, unsafe.Pointer(uintptr(p)+uintptr(f)))
-}
-
-// SetStructPointer writes a *struct field in the struct.
-func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
-	*(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))) = q
-}
-
-// GetStructPointer reads a *struct field in the struct.
-func structPointer_GetStructPointer(p structPointer, f field) structPointer {
-	return *(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// StructPointerSlice the address of a []*struct field in the struct.
-func structPointer_StructPointerSlice(p structPointer, f field) *structPointerSlice {
-	return (*structPointerSlice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// A structPointerSlice represents a slice of pointers to structs (themselves submessages or groups).
-type structPointerSlice []structPointer
-
-func (v *structPointerSlice) Len() int                  { return len(*v) }
-func (v *structPointerSlice) Index(i int) structPointer { return (*v)[i] }
-func (v *structPointerSlice) Append(p structPointer)    { *v = append(*v, p) }
-
-// A word32 is the address of a "pointer to 32-bit value" field.
-type word32 **uint32
-
-// IsNil reports whether *v is nil.
-func word32_IsNil(p word32) bool {
-	return *p == nil
-}
-
-// Set sets *v to point at a newly allocated word set to x.
-func word32_Set(p word32, o *Buffer, x uint32) {
-	if len(o.uint32s) == 0 {
-		o.uint32s = make([]uint32, uint32PoolSize)
-	}
-	o.uint32s[0] = x
-	*p = &o.uint32s[0]
-	o.uint32s = o.uint32s[1:]
-}
-
-// Get gets the value pointed at by *v.
-func word32_Get(p word32) uint32 {
-	return **p
-}
-
-// Word32 returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
-func structPointer_Word32(p structPointer, f field) word32 {
-	return word32((**uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
-}
-
-// A word32Val is the address of a 32-bit value field.
-type word32Val *uint32
-
-// Set sets *p to x.
-func word32Val_Set(p word32Val, x uint32) {
-	*p = x
-}
-
-// Get gets the value pointed at by p.
-func word32Val_Get(p word32Val) uint32 {
-	return *p
-}
-
-// Word32Val returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
-func structPointer_Word32Val(p structPointer, f field) word32Val {
-	return word32Val((*uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
-}
-
-// A word32Slice is a slice of 32-bit values.
-type word32Slice []uint32
-
-func (v *word32Slice) Append(x uint32)    { *v = append(*v, x) }
-func (v *word32Slice) Len() int           { return len(*v) }
-func (v *word32Slice) Index(i int) uint32 { return (*v)[i] }
-
-// Word32Slice returns the address of a []int32, []uint32, []float32, or []enum field in the struct.
-func structPointer_Word32Slice(p structPointer, f field) *word32Slice {
-	return (*word32Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-// word64 is like word32 but for 64-bit values.
-type word64 **uint64
-
-func word64_Set(p word64, o *Buffer, x uint64) {
-	if len(o.uint64s) == 0 {
-		o.uint64s = make([]uint64, uint64PoolSize)
-	}
-	o.uint64s[0] = x
-	*p = &o.uint64s[0]
-	o.uint64s = o.uint64s[1:]
-}
-
-func word64_IsNil(p word64) bool {
-	return *p == nil
-}
-
-func word64_Get(p word64) uint64 {
-	return **p
-}
-
-func structPointer_Word64(p structPointer, f field) word64 {
-	return word64((**uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
-}
-
-// word64Val is like word32Val but for 64-bit values.
-type word64Val *uint64
-
-func word64Val_Set(p word64Val, o *Buffer, x uint64) {
-	*p = x
-}
-
-func word64Val_Get(p word64Val) uint64 {
-	return *p
-}
-
-func structPointer_Word64Val(p structPointer, f field) word64Val {
-	return word64Val((*uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
-}
-
-// word64Slice is like word32Slice but for 64-bit values.
-type word64Slice []uint64
-
-func (v *word64Slice) Append(x uint64)    { *v = append(*v, x) }
-func (v *word64Slice) Len() int           { return len(*v) }
-func (v *word64Slice) Index(i int) uint64 { return (*v)[i] }
-
-func structPointer_Word64Slice(p structPointer, f field) *word64Slice {
-	return (*word64Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
diff --git a/vendor/github.com/golang/protobuf/proto/properties.go b/vendor/github.com/golang/protobuf/proto/properties.go
index ec2289c0..dcdc2202 100644
--- a/vendor/github.com/golang/protobuf/proto/properties.go
+++ b/vendor/github.com/golang/protobuf/proto/properties.go
@@ -1,223 +1,104 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
 
 package proto
 
-/*
- * Routines for encoding data into the wire format for protocol buffers.
- */
-
 import (
 	"fmt"
-	"log"
-	"os"
 	"reflect"
-	"sort"
 	"strconv"
 	"strings"
 	"sync"
-)
 
-const debug bool = false
-
-// Constants that identify the encoding of a value on the wire.
-const (
-	WireVarint     = 0
-	WireFixed64    = 1
-	WireBytes      = 2
-	WireStartGroup = 3
-	WireEndGroup   = 4
-	WireFixed32    = 5
+	"google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/runtime/protoimpl"
 )
 
-const startSize = 10 // initial slice/string sizes
-
-// Encoders are defined in encode.go
-// An encoder outputs the full representation of a field, including its
-// tag and encoder type.
-type encoder func(p *Buffer, prop *Properties, base structPointer) error
-
-// A valueEncoder encodes a single integer in a particular encoding.
-type valueEncoder func(o *Buffer, x uint64) error
-
-// Sizers are defined in encode.go
-// A sizer returns the encoded size of a field, including its tag and encoder
-// type.
-type sizer func(prop *Properties, base structPointer) int
-
-// A valueSizer returns the encoded size of a single integer in a particular
-// encoding.
-type valueSizer func(x uint64) int
-
-// Decoders are defined in decode.go
-// A decoder creates a value from its wire representation.
-// Unrecognized subelements are saved in unrec.
-type decoder func(p *Buffer, prop *Properties, base structPointer) error
-
-// A valueDecoder decodes a single integer in a particular encoding.
-type valueDecoder func(o *Buffer) (x uint64, err error)
-
-// A oneofMarshaler does the marshaling for all oneof fields in a message.
-type oneofMarshaler func(Message, *Buffer) error
-
-// A oneofUnmarshaler does the unmarshaling for a oneof field in a message.
-type oneofUnmarshaler func(Message, int, int, *Buffer) (bool, error)
-
-// A oneofSizer does the sizing for all oneof fields in a message.
-type oneofSizer func(Message) int
-
-// tagMap is an optimization over map[int]int for typical protocol buffer
-// use-cases. Encoded protocol buffers are often in tag order with small tag
-// numbers.
-type tagMap struct {
-	fastTags []int
-	slowTags map[int]int
-}
-
-// tagMapFastLimit is the upper bound on the tag number that will be stored in
-// the tagMap slice rather than its map.
-const tagMapFastLimit = 1024
-
-func (p *tagMap) get(t int) (int, bool) {
-	if t > 0 && t < tagMapFastLimit {
-		if t >= len(p.fastTags) {
-			return 0, false
-		}
-		fi := p.fastTags[t]
-		return fi, fi >= 0
-	}
-	fi, ok := p.slowTags[t]
-	return fi, ok
-}
-
-func (p *tagMap) put(t int, fi int) {
-	if t > 0 && t < tagMapFastLimit {
-		for len(p.fastTags) < t+1 {
-			p.fastTags = append(p.fastTags, -1)
-		}
-		p.fastTags[t] = fi
-		return
-	}
-	if p.slowTags == nil {
-		p.slowTags = make(map[int]int)
-	}
-	p.slowTags[t] = fi
-}
-
-// StructProperties represents properties for all the fields of a struct.
-// decoderTags and decoderOrigNames should only be used by the decoder.
+// StructProperties represents protocol buffer type information for a
+// generated protobuf message in the open-struct API.
+//
+// Deprecated: Do not use.
 type StructProperties struct {
-	Prop             []*Properties  // properties for each field
-	reqCount         int            // required count
-	decoderTags      tagMap         // map from proto tag to struct field number
-	decoderOrigNames map[string]int // map from original name to struct field number
-	order            []int          // list of struct field numbers in tag order
-	unrecField       field          // field id of the XXX_unrecognized []byte field
-	extendable       bool           // is this an extendable proto
-
-	oneofMarshaler   oneofMarshaler
-	oneofUnmarshaler oneofUnmarshaler
-	oneofSizer       oneofSizer
-	stype            reflect.Type
+	// Prop are the properties for each field.
+	//
+	// Fields belonging to a oneof are stored in OneofTypes instead, with a
+	// single Properties representing the parent oneof held here.
+	//
+	// The order of Prop matches the order of fields in the Go struct.
+	// Struct fields that are not related to protobufs have a "XXX_" prefix
+	// in the Properties.Name and must be ignored by the user.
+	Prop []*Properties
 
 	// OneofTypes contains information about the oneof fields in this message.
-	// It is keyed by the original name of a field.
+	// It is keyed by the protobuf field name.
 	OneofTypes map[string]*OneofProperties
 }
 
-// OneofProperties represents information about a specific field in a oneof.
-type OneofProperties struct {
-	Type  reflect.Type // pointer to generated struct type for this oneof field
-	Field int          // struct field number of the containing oneof in the message
-	Prop  *Properties
-}
-
-// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec.
-// See encode.go, (*Buffer).enc_struct.
-
-func (sp *StructProperties) Len() int { return len(sp.order) }
-func (sp *StructProperties) Less(i, j int) bool {
-	return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag
-}
-func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] }
-
-// Properties represents the protocol-specific behavior of a single struct field.
+// Properties represents the type information for a protobuf message field.
+//
+// Deprecated: Do not use.
 type Properties struct {
-	Name     string // name of the field, for error messages
-	OrigName string // original name before protocol compiler (always set)
-	JSONName string // name to use for JSON; determined by protoc
-	Wire     string
+	// Name is a placeholder name with little meaningful semantic value.
+	// If the name has an "XXX_" prefix, the entire Properties must be ignored.
+	Name string
+	// OrigName is the protobuf field name or oneof name.
+	OrigName string
+	// JSONName is the JSON name for the protobuf field.
+	JSONName string
+	// Enum is a placeholder name for enums.
+	// For historical reasons, this is neither the Go name for the enum,
+	// nor the protobuf name for the enum.
+	Enum string // Deprecated: Do not use.
+	// Weak contains the full name of the weakly referenced message.
+	Weak string
+	// Wire is a string representation of the wire type.
+	Wire string
+	// WireType is the protobuf wire type for the field.
 	WireType int
-	Tag      int
+	// Tag is the protobuf field number.
+	Tag int
+	// Required reports whether this is a required field.
 	Required bool
+	// Optional reports whether this is a optional field.
 	Optional bool
+	// Repeated reports whether this is a repeated field.
 	Repeated bool
-	Packed   bool   // relevant for repeated primitives only
-	Enum     string // set for enum types only
-	proto3   bool   // whether this is known to be a proto3 field; set for []byte only
-	oneof    bool   // whether this is a oneof field
-
-	Default    string // default value
-	HasDefault bool   // whether an explicit default was provided
-	def_uint64 uint64
-
-	enc           encoder
-	valEnc        valueEncoder // set for bool and numeric types only
-	field         field
-	tagcode       []byte // encoding of EncodeVarint((Tag<<3)|WireType)
-	tagbuf        [8]byte
-	stype         reflect.Type      // set for struct types only
-	sprop         *StructProperties // set for struct types only
-	isMarshaler   bool
-	isUnmarshaler bool
-
-	mtype    reflect.Type // set for map types only
-	mkeyprop *Properties  // set for map types only
-	mvalprop *Properties  // set for map types only
-
-	size    sizer
-	valSize valueSizer // set for bool and numeric types only
-
-	dec    decoder
-	valDec valueDecoder // set for bool and numeric types only
+	// Packed reports whether this is a packed repeated field of scalars.
+	Packed bool
+	// Proto3 reports whether this field operates under the proto3 syntax.
+	Proto3 bool
+	// Oneof reports whether this field belongs within a oneof.
+	Oneof bool
+
+	// Default is the default value in string form.
+	Default string
+	// HasDefault reports whether the field has a default value.
+	HasDefault bool
+
+	// MapKeyProp is the properties for the key field for a map field.
+	MapKeyProp *Properties
+	// MapValProp is the properties for the value field for a map field.
+	MapValProp *Properties
+}
 
-	// If this is a packable field, this will be the decoder for the packed version of the field.
-	packedDec decoder
+// OneofProperties represents the type information for a protobuf oneof.
+//
+// Deprecated: Do not use.
+type OneofProperties struct {
+	// Type is a pointer to the generated wrapper type for the field value.
+	// This is nil for messages that are not in the open-struct API.
+	Type reflect.Type
+	// Field is the index into StructProperties.Prop for the containing oneof.
+	Field int
+	// Prop is the properties for the field.
+	Prop *Properties
 }
 
 // String formats the properties in the protobuf struct field tag style.
 func (p *Properties) String() string {
 	s := p.Wire
-	s = ","
-	s += strconv.Itoa(p.Tag)
+	s += "," + strconv.Itoa(p.Tag)
 	if p.Required {
 		s += ",req"
 	}
@@ -231,18 +112,21 @@ func (p *Properties) String() string {
 		s += ",packed"
 	}
 	s += ",name=" + p.OrigName
-	if p.JSONName != p.OrigName {
+	if p.JSONName != "" {
 		s += ",json=" + p.JSONName
 	}
-	if p.proto3 {
+	if len(p.Enum) > 0 {
+		s += ",enum=" + p.Enum
+	}
+	if len(p.Weak) > 0 {
+		s += ",weak=" + p.Weak
+	}
+	if p.Proto3 {
 		s += ",proto3"
 	}
-	if p.oneof {
+	if p.Oneof {
 		s += ",oneof"
 	}
-	if len(p.Enum) > 0 {
-		s += ",enum=" + p.Enum
-	}
 	if p.HasDefault {
 		s += ",def=" + p.Default
 	}
@@ -250,623 +134,173 @@ func (p *Properties) String() string {
 }
 
 // Parse populates p by parsing a string in the protobuf struct field tag style.
-func (p *Properties) Parse(s string) {
-	// "bytes,49,opt,name=foo,def=hello!"
-	fields := strings.Split(s, ",") // breaks def=, but handled below.
-	if len(fields) < 2 {
-		fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s)
-		return
-	}
-
-	p.Wire = fields[0]
-	switch p.Wire {
-	case "varint":
-		p.WireType = WireVarint
-		p.valEnc = (*Buffer).EncodeVarint
-		p.valDec = (*Buffer).DecodeVarint
-		p.valSize = sizeVarint
-	case "fixed32":
-		p.WireType = WireFixed32
-		p.valEnc = (*Buffer).EncodeFixed32
-		p.valDec = (*Buffer).DecodeFixed32
-		p.valSize = sizeFixed32
-	case "fixed64":
-		p.WireType = WireFixed64
-		p.valEnc = (*Buffer).EncodeFixed64
-		p.valDec = (*Buffer).DecodeFixed64
-		p.valSize = sizeFixed64
-	case "zigzag32":
-		p.WireType = WireVarint
-		p.valEnc = (*Buffer).EncodeZigzag32
-		p.valDec = (*Buffer).DecodeZigzag32
-		p.valSize = sizeZigzag32
-	case "zigzag64":
-		p.WireType = WireVarint
-		p.valEnc = (*Buffer).EncodeZigzag64
-		p.valDec = (*Buffer).DecodeZigzag64
-		p.valSize = sizeZigzag64
-	case "bytes", "group":
-		p.WireType = WireBytes
-		// no numeric converter for non-numeric types
-	default:
-		fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s)
-		return
-	}
-
-	var err error
-	p.Tag, err = strconv.Atoi(fields[1])
-	if err != nil {
-		return
-	}
-
-	for i := 2; i < len(fields); i++ {
-		f := fields[i]
-		switch {
-		case f == "req":
-			p.Required = true
-		case f == "opt":
+func (p *Properties) Parse(tag string) {
+	// For example: "bytes,49,opt,name=foo,def=hello!"
+	for len(tag) > 0 {
+		i := strings.IndexByte(tag, ',')
+		if i < 0 {
+			i = len(tag)
+		}
+		switch s := tag[:i]; {
+		case strings.HasPrefix(s, "name="):
+			p.OrigName = s[len("name="):]
+		case strings.HasPrefix(s, "json="):
+			p.JSONName = s[len("json="):]
+		case strings.HasPrefix(s, "enum="):
+			p.Enum = s[len("enum="):]
+		case strings.HasPrefix(s, "weak="):
+			p.Weak = s[len("weak="):]
+		case strings.Trim(s, "0123456789") == "":
+			n, _ := strconv.ParseUint(s, 10, 32)
+			p.Tag = int(n)
+		case s == "opt":
 			p.Optional = true
-		case f == "rep":
+		case s == "req":
+			p.Required = true
+		case s == "rep":
 			p.Repeated = true
-		case f == "packed":
+		case s == "varint" || s == "zigzag32" || s == "zigzag64":
+			p.Wire = s
+			p.WireType = WireVarint
+		case s == "fixed32":
+			p.Wire = s
+			p.WireType = WireFixed32
+		case s == "fixed64":
+			p.Wire = s
+			p.WireType = WireFixed64
+		case s == "bytes":
+			p.Wire = s
+			p.WireType = WireBytes
+		case s == "group":
+			p.Wire = s
+			p.WireType = WireStartGroup
+		case s == "packed":
 			p.Packed = true
-		case strings.HasPrefix(f, "name="):
-			p.OrigName = f[5:]
-		case strings.HasPrefix(f, "json="):
-			p.JSONName = f[5:]
-		case strings.HasPrefix(f, "enum="):
-			p.Enum = f[5:]
-		case f == "proto3":
-			p.proto3 = true
-		case f == "oneof":
-			p.oneof = true
-		case strings.HasPrefix(f, "def="):
+		case s == "proto3":
+			p.Proto3 = true
+		case s == "oneof":
+			p.Oneof = true
+		case strings.HasPrefix(s, "def="):
+			// The default tag is special in that everything afterwards is the
+			// default regardless of the presence of commas.
 			p.HasDefault = true
-			p.Default = f[4:] // rest of string
-			if i+1 < len(fields) {
-				// Commas aren't escaped, and def is always last.
-				p.Default += "," + strings.Join(fields[i+1:], ",")
-				break
-			}
+			p.Default, i = tag[len("def="):], len(tag)
 		}
+		tag = strings.TrimPrefix(tag[i:], ",")
 	}
 }
 
-func logNoSliceEnc(t1, t2 reflect.Type) {
-	fmt.Fprintf(os.Stderr, "proto: no slice oenc for %T = []%T\n", t1, t2)
-}
-
-var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem()
-
-// Initialize the fields for encoding and decoding.
-func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lockGetProp bool) {
-	p.enc = nil
-	p.dec = nil
-	p.size = nil
-
-	switch t1 := typ; t1.Kind() {
-	default:
-		fmt.Fprintf(os.Stderr, "proto: no coders for %v\n", t1)
-
-	// proto3 scalar types
-
-	case reflect.Bool:
-		p.enc = (*Buffer).enc_proto3_bool
-		p.dec = (*Buffer).dec_proto3_bool
-		p.size = size_proto3_bool
-	case reflect.Int32:
-		p.enc = (*Buffer).enc_proto3_int32
-		p.dec = (*Buffer).dec_proto3_int32
-		p.size = size_proto3_int32
-	case reflect.Uint32:
-		p.enc = (*Buffer).enc_proto3_uint32
-		p.dec = (*Buffer).dec_proto3_int32 // can reuse
-		p.size = size_proto3_uint32
-	case reflect.Int64, reflect.Uint64:
-		p.enc = (*Buffer).enc_proto3_int64
-		p.dec = (*Buffer).dec_proto3_int64
-		p.size = size_proto3_int64
-	case reflect.Float32:
-		p.enc = (*Buffer).enc_proto3_uint32 // can just treat them as bits
-		p.dec = (*Buffer).dec_proto3_int32
-		p.size = size_proto3_uint32
-	case reflect.Float64:
-		p.enc = (*Buffer).enc_proto3_int64 // can just treat them as bits
-		p.dec = (*Buffer).dec_proto3_int64
-		p.size = size_proto3_int64
-	case reflect.String:
-		p.enc = (*Buffer).enc_proto3_string
-		p.dec = (*Buffer).dec_proto3_string
-		p.size = size_proto3_string
-
-	case reflect.Ptr:
-		switch t2 := t1.Elem(); t2.Kind() {
-		default:
-			fmt.Fprintf(os.Stderr, "proto: no encoder function for %v -> %v\n", t1, t2)
-			break
-		case reflect.Bool:
-			p.enc = (*Buffer).enc_bool
-			p.dec = (*Buffer).dec_bool
-			p.size = size_bool
-		case reflect.Int32:
-			p.enc = (*Buffer).enc_int32
-			p.dec = (*Buffer).dec_int32
-			p.size = size_int32
-		case reflect.Uint32:
-			p.enc = (*Buffer).enc_uint32
-			p.dec = (*Buffer).dec_int32 // can reuse
-			p.size = size_uint32
-		case reflect.Int64, reflect.Uint64:
-			p.enc = (*Buffer).enc_int64
-			p.dec = (*Buffer).dec_int64
-			p.size = size_int64
-		case reflect.Float32:
-			p.enc = (*Buffer).enc_uint32 // can just treat them as bits
-			p.dec = (*Buffer).dec_int32
-			p.size = size_uint32
-		case reflect.Float64:
-			p.enc = (*Buffer).enc_int64 // can just treat them as bits
-			p.dec = (*Buffer).dec_int64
-			p.size = size_int64
-		case reflect.String:
-			p.enc = (*Buffer).enc_string
-			p.dec = (*Buffer).dec_string
-			p.size = size_string
-		case reflect.Struct:
-			p.stype = t1.Elem()
-			p.isMarshaler = isMarshaler(t1)
-			p.isUnmarshaler = isUnmarshaler(t1)
-			if p.Wire == "bytes" {
-				p.enc = (*Buffer).enc_struct_message
-				p.dec = (*Buffer).dec_struct_message
-				p.size = size_struct_message
-			} else {
-				p.enc = (*Buffer).enc_struct_group
-				p.dec = (*Buffer).dec_struct_group
-				p.size = size_struct_group
-			}
-		}
-
-	case reflect.Slice:
-		switch t2 := t1.Elem(); t2.Kind() {
-		default:
-			logNoSliceEnc(t1, t2)
-			break
-		case reflect.Bool:
-			if p.Packed {
-				p.enc = (*Buffer).enc_slice_packed_bool
-				p.size = size_slice_packed_bool
-			} else {
-				p.enc = (*Buffer).enc_slice_bool
-				p.size = size_slice_bool
-			}
-			p.dec = (*Buffer).dec_slice_bool
-			p.packedDec = (*Buffer).dec_slice_packed_bool
-		case reflect.Int32:
-			if p.Packed {
-				p.enc = (*Buffer).enc_slice_packed_int32
-				p.size = size_slice_packed_int32
-			} else {
-				p.enc = (*Buffer).enc_slice_int32
-				p.size = size_slice_int32
-			}
-			p.dec = (*Buffer).dec_slice_int32
-			p.packedDec = (*Buffer).dec_slice_packed_int32
-		case reflect.Uint32:
-			if p.Packed {
-				p.enc = (*Buffer).enc_slice_packed_uint32
-				p.size = size_slice_packed_uint32
-			} else {
-				p.enc = (*Buffer).enc_slice_uint32
-				p.size = size_slice_uint32
-			}
-			p.dec = (*Buffer).dec_slice_int32
-			p.packedDec = (*Buffer).dec_slice_packed_int32
-		case reflect.Int64, reflect.Uint64:
-			if p.Packed {
-				p.enc = (*Buffer).enc_slice_packed_int64
-				p.size = size_slice_packed_int64
-			} else {
-				p.enc = (*Buffer).enc_slice_int64
-				p.size = size_slice_int64
-			}
-			p.dec = (*Buffer).dec_slice_int64
-			p.packedDec = (*Buffer).dec_slice_packed_int64
-		case reflect.Uint8:
-			p.dec = (*Buffer).dec_slice_byte
-			if p.proto3 {
-				p.enc = (*Buffer).enc_proto3_slice_byte
-				p.size = size_proto3_slice_byte
-			} else {
-				p.enc = (*Buffer).enc_slice_byte
-				p.size = size_slice_byte
-			}
-		case reflect.Float32, reflect.Float64:
-			switch t2.Bits() {
-			case 32:
-				// can just treat them as bits
-				if p.Packed {
-					p.enc = (*Buffer).enc_slice_packed_uint32
-					p.size = size_slice_packed_uint32
-				} else {
-					p.enc = (*Buffer).enc_slice_uint32
-					p.size = size_slice_uint32
-				}
-				p.dec = (*Buffer).dec_slice_int32
-				p.packedDec = (*Buffer).dec_slice_packed_int32
-			case 64:
-				// can just treat them as bits
-				if p.Packed {
-					p.enc = (*Buffer).enc_slice_packed_int64
-					p.size = size_slice_packed_int64
-				} else {
-					p.enc = (*Buffer).enc_slice_int64
-					p.size = size_slice_int64
-				}
-				p.dec = (*Buffer).dec_slice_int64
-				p.packedDec = (*Buffer).dec_slice_packed_int64
-			default:
-				logNoSliceEnc(t1, t2)
-				break
-			}
-		case reflect.String:
-			p.enc = (*Buffer).enc_slice_string
-			p.dec = (*Buffer).dec_slice_string
-			p.size = size_slice_string
-		case reflect.Ptr:
-			switch t3 := t2.Elem(); t3.Kind() {
-			default:
-				fmt.Fprintf(os.Stderr, "proto: no ptr oenc for %T -> %T -> %T\n", t1, t2, t3)
-				break
-			case reflect.Struct:
-				p.stype = t2.Elem()
-				p.isMarshaler = isMarshaler(t2)
-				p.isUnmarshaler = isUnmarshaler(t2)
-				if p.Wire == "bytes" {
-					p.enc = (*Buffer).enc_slice_struct_message
-					p.dec = (*Buffer).dec_slice_struct_message
-					p.size = size_slice_struct_message
-				} else {
-					p.enc = (*Buffer).enc_slice_struct_group
-					p.dec = (*Buffer).dec_slice_struct_group
-					p.size = size_slice_struct_group
-				}
-			}
-		case reflect.Slice:
-			switch t2.Elem().Kind() {
-			default:
-				fmt.Fprintf(os.Stderr, "proto: no slice elem oenc for %T -> %T -> %T\n", t1, t2, t2.Elem())
-				break
-			case reflect.Uint8:
-				p.enc = (*Buffer).enc_slice_slice_byte
-				p.dec = (*Buffer).dec_slice_slice_byte
-				p.size = size_slice_slice_byte
-			}
-		}
-
-	case reflect.Map:
-		p.enc = (*Buffer).enc_new_map
-		p.dec = (*Buffer).dec_new_map
-		p.size = size_new_map
-
-		p.mtype = t1
-		p.mkeyprop = &Properties{}
-		p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
-		p.mvalprop = &Properties{}
-		vtype := p.mtype.Elem()
-		if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice {
-			// The value type is not a message (*T) or bytes ([]byte),
-			// so we need encoders for the pointer to this type.
-			vtype = reflect.PtrTo(vtype)
-		}
-		p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
-	}
-
-	// precalculate tag code
-	wire := p.WireType
-	if p.Packed {
-		wire = WireBytes
-	}
-	x := uint32(p.Tag)<<3 | uint32(wire)
-	i := 0
-	for i = 0; x > 127; i++ {
-		p.tagbuf[i] = 0x80 | uint8(x&0x7F)
-		x >>= 7
-	}
-	p.tagbuf[i] = uint8(x)
-	p.tagcode = p.tagbuf[0 : i+1]
-
-	if p.stype != nil {
-		if lockGetProp {
-			p.sprop = GetProperties(p.stype)
-		} else {
-			p.sprop = getPropertiesLocked(p.stype)
-		}
-	}
-}
-
-var (
-	marshalerType   = reflect.TypeOf((*Marshaler)(nil)).Elem()
-	unmarshalerType = reflect.TypeOf((*Unmarshaler)(nil)).Elem()
-)
-
-// isMarshaler reports whether type t implements Marshaler.
-func isMarshaler(t reflect.Type) bool {
-	// We're checking for (likely) pointer-receiver methods
-	// so if t is not a pointer, something is very wrong.
-	// The calls above only invoke isMarshaler on pointer types.
-	if t.Kind() != reflect.Ptr {
-		panic("proto: misuse of isMarshaler")
-	}
-	return t.Implements(marshalerType)
-}
-
-// isUnmarshaler reports whether type t implements Unmarshaler.
-func isUnmarshaler(t reflect.Type) bool {
-	// We're checking for (likely) pointer-receiver methods
-	// so if t is not a pointer, something is very wrong.
-	// The calls above only invoke isUnmarshaler on pointer types.
-	if t.Kind() != reflect.Ptr {
-		panic("proto: misuse of isUnmarshaler")
-	}
-	return t.Implements(unmarshalerType)
-}
-
 // Init populates the properties from a protocol buffer struct tag.
+//
+// Deprecated: Do not use.
 func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
-	p.init(typ, name, tag, f, true)
-}
-
-func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) {
-	// "bytes,49,opt,def=hello!"
 	p.Name = name
 	p.OrigName = name
-	if f != nil {
-		p.field = toField(f)
-	}
 	if tag == "" {
 		return
 	}
 	p.Parse(tag)
-	p.setEncAndDec(typ, f, lockGetProp)
+
+	if typ != nil && typ.Kind() == reflect.Map {
+		p.MapKeyProp = new(Properties)
+		p.MapKeyProp.Init(nil, "Key", f.Tag.Get("protobuf_key"), nil)
+		p.MapValProp = new(Properties)
+		p.MapValProp.Init(nil, "Value", f.Tag.Get("protobuf_val"), nil)
+	}
 }
 
-var (
-	propertiesMu  sync.RWMutex
-	propertiesMap = make(map[reflect.Type]*StructProperties)
-)
+var propertiesCache sync.Map // map[reflect.Type]*StructProperties
 
-// GetProperties returns the list of properties for the type represented by t.
-// t must represent a generated struct type of a protocol message.
+// GetProperties returns the list of properties for the type represented by t,
+// which must be a generated protocol buffer message in the open-struct API,
+// where protobuf message fields are represented by exported Go struct fields.
+//
+// Deprecated: Use protobuf reflection instead.
 func GetProperties(t reflect.Type) *StructProperties {
-	if t.Kind() != reflect.Struct {
-		panic("proto: type must have kind struct")
-	}
-
-	// Most calls to GetProperties in a long-running program will be
-	// retrieving details for types we have seen before.
-	propertiesMu.RLock()
-	sprop, ok := propertiesMap[t]
-	propertiesMu.RUnlock()
-	if ok {
-		if collectStats {
-			stats.Chit++
-		}
-		return sprop
+	if p, ok := propertiesCache.Load(t); ok {
+		return p.(*StructProperties)
 	}
-
-	propertiesMu.Lock()
-	sprop = getPropertiesLocked(t)
-	propertiesMu.Unlock()
-	return sprop
+	p, _ := propertiesCache.LoadOrStore(t, newProperties(t))
+	return p.(*StructProperties)
 }
 
-// getPropertiesLocked requires that propertiesMu is held.
-func getPropertiesLocked(t reflect.Type) *StructProperties {
-	if prop, ok := propertiesMap[t]; ok {
-		if collectStats {
-			stats.Chit++
-		}
-		return prop
-	}
-	if collectStats {
-		stats.Cmiss++
+func newProperties(t reflect.Type) *StructProperties {
+	if t.Kind() != reflect.Struct {
+		panic(fmt.Sprintf("%v is not a generated message in the open-struct API", t))
 	}
 
+	var hasOneof bool
 	prop := new(StructProperties)
-	// in case of recursive protos, fill this in now.
-	propertiesMap[t] = prop
-
-	// build properties
-	prop.extendable = reflect.PtrTo(t).Implements(extendableProtoType) ||
-		reflect.PtrTo(t).Implements(extendableProtoV1Type)
-	prop.unrecField = invalidField
-	prop.Prop = make([]*Properties, t.NumField())
-	prop.order = make([]int, t.NumField())
 
+	// Construct a list of properties for each field in the struct.
 	for i := 0; i < t.NumField(); i++ {
-		f := t.Field(i)
 		p := new(Properties)
-		name := f.Name
-		p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false)
+		f := t.Field(i)
+		tagField := f.Tag.Get("protobuf")
+		p.Init(f.Type, f.Name, tagField, &f)
 
-		if f.Name == "XXX_InternalExtensions" { // special case
-			p.enc = (*Buffer).enc_exts
-			p.dec = nil // not needed
-			p.size = size_exts
-		} else if f.Name == "XXX_extensions" { // special case
-			p.enc = (*Buffer).enc_map
-			p.dec = nil // not needed
-			p.size = size_map
-		} else if f.Name == "XXX_unrecognized" { // special case
-			prop.unrecField = toField(&f)
-		}
-		oneof := f.Tag.Get("protobuf_oneof") // special case
-		if oneof != "" {
-			// Oneof fields don't use the traditional protobuf tag.
-			p.OrigName = oneof
-		}
-		prop.Prop[i] = p
-		prop.order[i] = i
-		if debug {
-			print(i, " ", f.Name, " ", t.String(), " ")
-			if p.Tag > 0 {
-				print(p.String())
-			}
-			print("\n")
+		tagOneof := f.Tag.Get("protobuf_oneof")
+		if tagOneof != "" {
+			hasOneof = true
+			p.OrigName = tagOneof
 		}
-		if p.enc == nil && !strings.HasPrefix(f.Name, "XXX_") && oneof == "" {
-			fmt.Fprintln(os.Stderr, "proto: no encoder for", f.Name, f.Type.String(), "[GetProperties]")
-		}
-	}
 
-	// Re-order prop.order.
-	sort.Sort(prop)
+		// Rename unrelated struct fields with the "XXX_" prefix since so much
+		// user code simply checks for this to exclude special fields.
+		if tagField == "" && tagOneof == "" && !strings.HasPrefix(p.Name, "XXX_") {
+			p.Name = "XXX_" + p.Name
+			p.OrigName = "XXX_" + p.OrigName
+		} else if p.Weak != "" {
+			p.Name = p.OrigName // avoid possible "XXX_" prefix on weak field
+		}
 
-	type oneofMessage interface {
-		XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{})
+		prop.Prop = append(prop.Prop, p)
 	}
-	if om, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok {
-		var oots []interface{}
-		prop.oneofMarshaler, prop.oneofUnmarshaler, prop.oneofSizer, oots = om.XXX_OneofFuncs()
-		prop.stype = t
 
-		// Interpret oneof metadata.
+	// Construct a mapping of oneof field names to properties.
+	if hasOneof {
+		var oneofWrappers []interface{}
+		if fn, ok := reflect.PtrTo(t).MethodByName("XXX_OneofFuncs"); ok {
+			oneofWrappers = fn.Func.Call([]reflect.Value{reflect.Zero(fn.Type.In(0))})[3].Interface().([]interface{})
+		}
+		if fn, ok := reflect.PtrTo(t).MethodByName("XXX_OneofWrappers"); ok {
+			oneofWrappers = fn.Func.Call([]reflect.Value{reflect.Zero(fn.Type.In(0))})[0].Interface().([]interface{})
+		}
+		if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(protoreflect.ProtoMessage); ok {
+			if m, ok := m.ProtoReflect().(interface{ ProtoMessageInfo() *protoimpl.MessageInfo }); ok {
+				oneofWrappers = m.ProtoMessageInfo().OneofWrappers
+			}
+		}
+
 		prop.OneofTypes = make(map[string]*OneofProperties)
-		for _, oot := range oots {
-			oop := &OneofProperties{
-				Type: reflect.ValueOf(oot).Type(), // *T
+		for _, wrapper := range oneofWrappers {
+			p := &OneofProperties{
+				Type: reflect.ValueOf(wrapper).Type(), // *T
 				Prop: new(Properties),
 			}
-			sft := oop.Type.Elem().Field(0)
-			oop.Prop.Name = sft.Name
-			oop.Prop.Parse(sft.Tag.Get("protobuf"))
-			// There will be exactly one interface field that
-			// this new value is assignable to.
-			for i := 0; i < t.NumField(); i++ {
-				f := t.Field(i)
-				if f.Type.Kind() != reflect.Interface {
-					continue
-				}
-				if !oop.Type.AssignableTo(f.Type) {
-					continue
+			f := p.Type.Elem().Field(0)
+			p.Prop.Name = f.Name
+			p.Prop.Parse(f.Tag.Get("protobuf"))
+
+			// Determine the struct field that contains this oneof.
+			// Each wrapper is assignable to exactly one parent field.
+			var foundOneof bool
+			for i := 0; i < t.NumField() && !foundOneof; i++ {
+				if p.Type.AssignableTo(t.Field(i).Type) {
+					p.Field = i
+					foundOneof = true
 				}
-				oop.Field = i
-				break
 			}
-			prop.OneofTypes[oop.Prop.OrigName] = oop
-		}
-	}
-
-	// build required counts
-	// build tags
-	reqCount := 0
-	prop.decoderOrigNames = make(map[string]int)
-	for i, p := range prop.Prop {
-		if strings.HasPrefix(p.Name, "XXX_") {
-			// Internal fields should not appear in tags/origNames maps.
-			// They are handled specially when encoding and decoding.
-			continue
-		}
-		if p.Required {
-			reqCount++
+			if !foundOneof {
+				panic(fmt.Sprintf("%v is not a generated message in the open-struct API", t))
+			}
+			prop.OneofTypes[p.Prop.OrigName] = p
 		}
-		prop.decoderTags.put(p.Tag, i)
-		prop.decoderOrigNames[p.OrigName] = i
 	}
-	prop.reqCount = reqCount
 
 	return prop
 }
 
-// Return the Properties object for the x[0]'th field of the structure.
-func propByIndex(t reflect.Type, x []int) *Properties {
-	if len(x) != 1 {
-		fmt.Fprintf(os.Stderr, "proto: field index dimension %d (not 1) for type %s\n", len(x), t)
-		return nil
-	}
-	prop := GetProperties(t)
-	return prop.Prop[x[0]]
-}
-
-// Get the address and type of a pointer to a struct from an interface.
-func getbase(pb Message) (t reflect.Type, b structPointer, err error) {
-	if pb == nil {
-		err = ErrNil
-		return
-	}
-	// get the reflect type of the pointer to the struct.
-	t = reflect.TypeOf(pb)
-	// get the address of the struct.
-	value := reflect.ValueOf(pb)
-	b = toStructPointer(value)
-	return
-}
-
-// A global registry of enum types.
-// The generated code will register the generated maps by calling RegisterEnum.
-
-var enumValueMaps = make(map[string]map[string]int32)
-
-// RegisterEnum is called from the generated code to install the enum descriptor
-// maps into the global table to aid parsing text format protocol buffers.
-func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) {
-	if _, ok := enumValueMaps[typeName]; ok {
-		panic("proto: duplicate enum registered: " + typeName)
-	}
-	enumValueMaps[typeName] = valueMap
-}
-
-// EnumValueMap returns the mapping from names to integers of the
-// enum type enumType, or a nil if not found.
-func EnumValueMap(enumType string) map[string]int32 {
-	return enumValueMaps[enumType]
-}
-
-// A registry of all linked message types.
-// The string is a fully-qualified proto name ("pkg.Message").
-var (
-	protoTypes    = make(map[string]reflect.Type)
-	revProtoTypes = make(map[reflect.Type]string)
-)
-
-// RegisterType is called from generated code and maps from the fully qualified
-// proto name to the type (pointer to struct) of the protocol buffer.
-func RegisterType(x Message, name string) {
-	if _, ok := protoTypes[name]; ok {
-		// TODO: Some day, make this a panic.
-		log.Printf("proto: duplicate proto type registered: %s", name)
-		return
-	}
-	t := reflect.TypeOf(x)
-	protoTypes[name] = t
-	revProtoTypes[t] = name
-}
-
-// MessageName returns the fully-qualified proto name for the given message type.
-func MessageName(x Message) string {
-	type xname interface {
-		XXX_MessageName() string
-	}
-	if m, ok := x.(xname); ok {
-		return m.XXX_MessageName()
-	}
-	return revProtoTypes[reflect.TypeOf(x)]
-}
-
-// MessageType returns the message type (pointer to struct) for a named message.
-func MessageType(name string) reflect.Type { return protoTypes[name] }
-
-// A registry of all linked proto files.
-var (
-	protoFiles = make(map[string][]byte) // file name => fileDescriptor
-)
-
-// RegisterFile is called from generated code and maps from the
-// full file name of a .proto file to its compressed FileDescriptorProto.
-func RegisterFile(filename string, fileDescriptor []byte) {
-	protoFiles[filename] = fileDescriptor
-}
-
-// FileDescriptor returns the compressed FileDescriptorProto for a .proto file.
-func FileDescriptor(filename string) []byte { return protoFiles[filename] }
+func (sp *StructProperties) Len() int           { return len(sp.Prop) }
+func (sp *StructProperties) Less(i, j int) bool { return false }
+func (sp *StructProperties) Swap(i, j int)      { return }
diff --git a/vendor/github.com/golang/protobuf/proto/text.go b/vendor/github.com/golang/protobuf/proto/text.go
deleted file mode 100644
index 965876bf..00000000
--- a/vendor/github.com/golang/protobuf/proto/text.go
+++ /dev/null
@@ -1,854 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-// Functions for writing the text protocol buffer format.
-
-import (
-	"bufio"
-	"bytes"
-	"encoding"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"math"
-	"reflect"
-	"sort"
-	"strings"
-)
-
-var (
-	newline         = []byte("\n")
-	spaces          = []byte("                                        ")
-	gtNewline       = []byte(">\n")
-	endBraceNewline = []byte("}\n")
-	backslashN      = []byte{'\\', 'n'}
-	backslashR      = []byte{'\\', 'r'}
-	backslashT      = []byte{'\\', 't'}
-	backslashDQ     = []byte{'\\', '"'}
-	backslashBS     = []byte{'\\', '\\'}
-	posInf          = []byte("inf")
-	negInf          = []byte("-inf")
-	nan             = []byte("nan")
-)
-
-type writer interface {
-	io.Writer
-	WriteByte(byte) error
-}
-
-// textWriter is an io.Writer that tracks its indentation level.
-type textWriter struct {
-	ind      int
-	complete bool // if the current position is a complete line
-	compact  bool // whether to write out as a one-liner
-	w        writer
-}
-
-func (w *textWriter) WriteString(s string) (n int, err error) {
-	if !strings.Contains(s, "\n") {
-		if !w.compact && w.complete {
-			w.writeIndent()
-		}
-		w.complete = false
-		return io.WriteString(w.w, s)
-	}
-	// WriteString is typically called without newlines, so this
-	// codepath and its copy are rare.  We copy to avoid
-	// duplicating all of Write's logic here.
-	return w.Write([]byte(s))
-}
-
-func (w *textWriter) Write(p []byte) (n int, err error) {
-	newlines := bytes.Count(p, newline)
-	if newlines == 0 {
-		if !w.compact && w.complete {
-			w.writeIndent()
-		}
-		n, err = w.w.Write(p)
-		w.complete = false
-		return n, err
-	}
-
-	frags := bytes.SplitN(p, newline, newlines+1)
-	if w.compact {
-		for i, frag := range frags {
-			if i > 0 {
-				if err := w.w.WriteByte(' '); err != nil {
-					return n, err
-				}
-				n++
-			}
-			nn, err := w.w.Write(frag)
-			n += nn
-			if err != nil {
-				return n, err
-			}
-		}
-		return n, nil
-	}
-
-	for i, frag := range frags {
-		if w.complete {
-			w.writeIndent()
-		}
-		nn, err := w.w.Write(frag)
-		n += nn
-		if err != nil {
-			return n, err
-		}
-		if i+1 < len(frags) {
-			if err := w.w.WriteByte('\n'); err != nil {
-				return n, err
-			}
-			n++
-		}
-	}
-	w.complete = len(frags[len(frags)-1]) == 0
-	return n, nil
-}
-
-func (w *textWriter) WriteByte(c byte) error {
-	if w.compact && c == '\n' {
-		c = ' '
-	}
-	if !w.compact && w.complete {
-		w.writeIndent()
-	}
-	err := w.w.WriteByte(c)
-	w.complete = c == '\n'
-	return err
-}
-
-func (w *textWriter) indent() { w.ind++ }
-
-func (w *textWriter) unindent() {
-	if w.ind == 0 {
-		log.Print("proto: textWriter unindented too far")
-		return
-	}
-	w.ind--
-}
-
-func writeName(w *textWriter, props *Properties) error {
-	if _, err := w.WriteString(props.OrigName); err != nil {
-		return err
-	}
-	if props.Wire != "group" {
-		return w.WriteByte(':')
-	}
-	return nil
-}
-
-// raw is the interface satisfied by RawMessage.
-type raw interface {
-	Bytes() []byte
-}
-
-func requiresQuotes(u string) bool {
-	// When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted.
-	for _, ch := range u {
-		switch {
-		case ch == '.' || ch == '/' || ch == '_':
-			continue
-		case '0' <= ch && ch <= '9':
-			continue
-		case 'A' <= ch && ch <= 'Z':
-			continue
-		case 'a' <= ch && ch <= 'z':
-			continue
-		default:
-			return true
-		}
-	}
-	return false
-}
-
-// isAny reports whether sv is a google.protobuf.Any message
-func isAny(sv reflect.Value) bool {
-	type wkt interface {
-		XXX_WellKnownType() string
-	}
-	t, ok := sv.Addr().Interface().(wkt)
-	return ok && t.XXX_WellKnownType() == "Any"
-}
-
-// writeProto3Any writes an expanded google.protobuf.Any message.
-//
-// It returns (false, nil) if sv value can't be unmarshaled (e.g. because
-// required messages are not linked in).
-//
-// It returns (true, error) when sv was written in expanded format or an error
-// was encountered.
-func (tm *TextMarshaler) writeProto3Any(w *textWriter, sv reflect.Value) (bool, error) {
-	turl := sv.FieldByName("TypeUrl")
-	val := sv.FieldByName("Value")
-	if !turl.IsValid() || !val.IsValid() {
-		return true, errors.New("proto: invalid google.protobuf.Any message")
-	}
-
-	b, ok := val.Interface().([]byte)
-	if !ok {
-		return true, errors.New("proto: invalid google.protobuf.Any message")
-	}
-
-	parts := strings.Split(turl.String(), "/")
-	mt := MessageType(parts[len(parts)-1])
-	if mt == nil {
-		return false, nil
-	}
-	m := reflect.New(mt.Elem())
-	if err := Unmarshal(b, m.Interface().(Message)); err != nil {
-		return false, nil
-	}
-	w.Write([]byte("["))
-	u := turl.String()
-	if requiresQuotes(u) {
-		writeString(w, u)
-	} else {
-		w.Write([]byte(u))
-	}
-	if w.compact {
-		w.Write([]byte("]:<"))
-	} else {
-		w.Write([]byte("]: <\n"))
-		w.ind++
-	}
-	if err := tm.writeStruct(w, m.Elem()); err != nil {
-		return true, err
-	}
-	if w.compact {
-		w.Write([]byte("> "))
-	} else {
-		w.ind--
-		w.Write([]byte(">\n"))
-	}
-	return true, nil
-}
-
-func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
-	if tm.ExpandAny && isAny(sv) {
-		if canExpand, err := tm.writeProto3Any(w, sv); canExpand {
-			return err
-		}
-	}
-	st := sv.Type()
-	sprops := GetProperties(st)
-	for i := 0; i < sv.NumField(); i++ {
-		fv := sv.Field(i)
-		props := sprops.Prop[i]
-		name := st.Field(i).Name
-
-		if strings.HasPrefix(name, "XXX_") {
-			// There are two XXX_ fields:
-			//   XXX_unrecognized []byte
-			//   XXX_extensions   map[int32]proto.Extension
-			// The first is handled here;
-			// the second is handled at the bottom of this function.
-			if name == "XXX_unrecognized" && !fv.IsNil() {
-				if err := writeUnknownStruct(w, fv.Interface().([]byte)); err != nil {
-					return err
-				}
-			}
-			continue
-		}
-		if fv.Kind() == reflect.Ptr && fv.IsNil() {
-			// Field not filled in. This could be an optional field or
-			// a required field that wasn't filled in. Either way, there
-			// isn't anything we can show for it.
-			continue
-		}
-		if fv.Kind() == reflect.Slice && fv.IsNil() {
-			// Repeated field that is empty, or a bytes field that is unused.
-			continue
-		}
-
-		if props.Repeated && fv.Kind() == reflect.Slice {
-			// Repeated field.
-			for j := 0; j < fv.Len(); j++ {
-				if err := writeName(w, props); err != nil {
-					return err
-				}
-				if !w.compact {
-					if err := w.WriteByte(' '); err != nil {
-						return err
-					}
-				}
-				v := fv.Index(j)
-				if v.Kind() == reflect.Ptr && v.IsNil() {
-					// A nil message in a repeated field is not valid,
-					// but we can handle that more gracefully than panicking.
-					if _, err := w.Write([]byte("<nil>\n")); err != nil {
-						return err
-					}
-					continue
-				}
-				if err := tm.writeAny(w, v, props); err != nil {
-					return err
-				}
-				if err := w.WriteByte('\n'); err != nil {
-					return err
-				}
-			}
-			continue
-		}
-		if fv.Kind() == reflect.Map {
-			// Map fields are rendered as a repeated struct with key/value fields.
-			keys := fv.MapKeys()
-			sort.Sort(mapKeys(keys))
-			for _, key := range keys {
-				val := fv.MapIndex(key)
-				if err := writeName(w, props); err != nil {
-					return err
-				}
-				if !w.compact {
-					if err := w.WriteByte(' '); err != nil {
-						return err
-					}
-				}
-				// open struct
-				if err := w.WriteByte('<'); err != nil {
-					return err
-				}
-				if !w.compact {
-					if err := w.WriteByte('\n'); err != nil {
-						return err
-					}
-				}
-				w.indent()
-				// key
-				if _, err := w.WriteString("key:"); err != nil {
-					return err
-				}
-				if !w.compact {
-					if err := w.WriteByte(' '); err != nil {
-						return err
-					}
-				}
-				if err := tm.writeAny(w, key, props.mkeyprop); err != nil {
-					return err
-				}
-				if err := w.WriteByte('\n'); err != nil {
-					return err
-				}
-				// nil values aren't legal, but we can avoid panicking because of them.
-				if val.Kind() != reflect.Ptr || !val.IsNil() {
-					// value
-					if _, err := w.WriteString("value:"); err != nil {
-						return err
-					}
-					if !w.compact {
-						if err := w.WriteByte(' '); err != nil {
-							return err
-						}
-					}
-					if err := tm.writeAny(w, val, props.mvalprop); err != nil {
-						return err
-					}
-					if err := w.WriteByte('\n'); err != nil {
-						return err
-					}
-				}
-				// close struct
-				w.unindent()
-				if err := w.WriteByte('>'); err != nil {
-					return err
-				}
-				if err := w.WriteByte('\n'); err != nil {
-					return err
-				}
-			}
-			continue
-		}
-		if props.proto3 && fv.Kind() == reflect.Slice && fv.Len() == 0 {
-			// empty bytes field
-			continue
-		}
-		if fv.Kind() != reflect.Ptr && fv.Kind() != reflect.Slice {
-			// proto3 non-repeated scalar field; skip if zero value
-			if isProto3Zero(fv) {
-				continue
-			}
-		}
-
-		if fv.Kind() == reflect.Interface {
-			// Check if it is a oneof.
-			if st.Field(i).Tag.Get("protobuf_oneof") != "" {
-				// fv is nil, or holds a pointer to generated struct.
-				// That generated struct has exactly one field,
-				// which has a protobuf struct tag.
-				if fv.IsNil() {
-					continue
-				}
-				inner := fv.Elem().Elem() // interface -> *T -> T
-				tag := inner.Type().Field(0).Tag.Get("protobuf")
-				props = new(Properties) // Overwrite the outer props var, but not its pointee.
-				props.Parse(tag)
-				// Write the value in the oneof, not the oneof itself.
-				fv = inner.Field(0)
-
-				// Special case to cope with malformed messages gracefully:
-				// If the value in the oneof is a nil pointer, don't panic
-				// in writeAny.
-				if fv.Kind() == reflect.Ptr && fv.IsNil() {
-					// Use errors.New so writeAny won't render quotes.
-					msg := errors.New("/* nil */")
-					fv = reflect.ValueOf(&msg).Elem()
-				}
-			}
-		}
-
-		if err := writeName(w, props); err != nil {
-			return err
-		}
-		if !w.compact {
-			if err := w.WriteByte(' '); err != nil {
-				return err
-			}
-		}
-		if b, ok := fv.Interface().(raw); ok {
-			if err := writeRaw(w, b.Bytes()); err != nil {
-				return err
-			}
-			continue
-		}
-
-		// Enums have a String method, so writeAny will work fine.
-		if err := tm.writeAny(w, fv, props); err != nil {
-			return err
-		}
-
-		if err := w.WriteByte('\n'); err != nil {
-			return err
-		}
-	}
-
-	// Extensions (the XXX_extensions field).
-	pv := sv.Addr()
-	if _, ok := extendable(pv.Interface()); ok {
-		if err := tm.writeExtensions(w, pv); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// writeRaw writes an uninterpreted raw message.
-func writeRaw(w *textWriter, b []byte) error {
-	if err := w.WriteByte('<'); err != nil {
-		return err
-	}
-	if !w.compact {
-		if err := w.WriteByte('\n'); err != nil {
-			return err
-		}
-	}
-	w.indent()
-	if err := writeUnknownStruct(w, b); err != nil {
-		return err
-	}
-	w.unindent()
-	if err := w.WriteByte('>'); err != nil {
-		return err
-	}
-	return nil
-}
-
-// writeAny writes an arbitrary field.
-func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Properties) error {
-	v = reflect.Indirect(v)
-
-	// Floats have special cases.
-	if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 {
-		x := v.Float()
-		var b []byte
-		switch {
-		case math.IsInf(x, 1):
-			b = posInf
-		case math.IsInf(x, -1):
-			b = negInf
-		case math.IsNaN(x):
-			b = nan
-		}
-		if b != nil {
-			_, err := w.Write(b)
-			return err
-		}
-		// Other values are handled below.
-	}
-
-	// We don't attempt to serialise every possible value type; only those
-	// that can occur in protocol buffers.
-	switch v.Kind() {
-	case reflect.Slice:
-		// Should only be a []byte; repeated fields are handled in writeStruct.
-		if err := writeString(w, string(v.Bytes())); err != nil {
-			return err
-		}
-	case reflect.String:
-		if err := writeString(w, v.String()); err != nil {
-			return err
-		}
-	case reflect.Struct:
-		// Required/optional group/message.
-		var bra, ket byte = '<', '>'
-		if props != nil && props.Wire == "group" {
-			bra, ket = '{', '}'
-		}
-		if err := w.WriteByte(bra); err != nil {
-			return err
-		}
-		if !w.compact {
-			if err := w.WriteByte('\n'); err != nil {
-				return err
-			}
-		}
-		w.indent()
-		if etm, ok := v.Interface().(encoding.TextMarshaler); ok {
-			text, err := etm.MarshalText()
-			if err != nil {
-				return err
-			}
-			if _, err = w.Write(text); err != nil {
-				return err
-			}
-		} else if err := tm.writeStruct(w, v); err != nil {
-			return err
-		}
-		w.unindent()
-		if err := w.WriteByte(ket); err != nil {
-			return err
-		}
-	default:
-		_, err := fmt.Fprint(w, v.Interface())
-		return err
-	}
-	return nil
-}
-
-// equivalent to C's isprint.
-func isprint(c byte) bool {
-	return c >= 0x20 && c < 0x7f
-}
-
-// writeString writes a string in the protocol buffer text format.
-// It is similar to strconv.Quote except we don't use Go escape sequences,
-// we treat the string as a byte sequence, and we use octal escapes.
-// These differences are to maintain interoperability with the other
-// languages' implementations of the text format.
-func writeString(w *textWriter, s string) error {
-	// use WriteByte here to get any needed indent
-	if err := w.WriteByte('"'); err != nil {
-		return err
-	}
-	// Loop over the bytes, not the runes.
-	for i := 0; i < len(s); i++ {
-		var err error
-		// Divergence from C++: we don't escape apostrophes.
-		// There's no need to escape them, and the C++ parser
-		// copes with a naked apostrophe.
-		switch c := s[i]; c {
-		case '\n':
-			_, err = w.w.Write(backslashN)
-		case '\r':
-			_, err = w.w.Write(backslashR)
-		case '\t':
-			_, err = w.w.Write(backslashT)
-		case '"':
-			_, err = w.w.Write(backslashDQ)
-		case '\\':
-			_, err = w.w.Write(backslashBS)
-		default:
-			if isprint(c) {
-				err = w.w.WriteByte(c)
-			} else {
-				_, err = fmt.Fprintf(w.w, "\\%03o", c)
-			}
-		}
-		if err != nil {
-			return err
-		}
-	}
-	return w.WriteByte('"')
-}
-
-func writeUnknownStruct(w *textWriter, data []byte) (err error) {
-	if !w.compact {
-		if _, err := fmt.Fprintf(w, "/* %d unknown bytes */\n", len(data)); err != nil {
-			return err
-		}
-	}
-	b := NewBuffer(data)
-	for b.index < len(b.buf) {
-		x, err := b.DecodeVarint()
-		if err != nil {
-			_, err := fmt.Fprintf(w, "/* %v */\n", err)
-			return err
-		}
-		wire, tag := x&7, x>>3
-		if wire == WireEndGroup {
-			w.unindent()
-			if _, err := w.Write(endBraceNewline); err != nil {
-				return err
-			}
-			continue
-		}
-		if _, err := fmt.Fprint(w, tag); err != nil {
-			return err
-		}
-		if wire != WireStartGroup {
-			if err := w.WriteByte(':'); err != nil {
-				return err
-			}
-		}
-		if !w.compact || wire == WireStartGroup {
-			if err := w.WriteByte(' '); err != nil {
-				return err
-			}
-		}
-		switch wire {
-		case WireBytes:
-			buf, e := b.DecodeRawBytes(false)
-			if e == nil {
-				_, err = fmt.Fprintf(w, "%q", buf)
-			} else {
-				_, err = fmt.Fprintf(w, "/* %v */", e)
-			}
-		case WireFixed32:
-			x, err = b.DecodeFixed32()
-			err = writeUnknownInt(w, x, err)
-		case WireFixed64:
-			x, err = b.DecodeFixed64()
-			err = writeUnknownInt(w, x, err)
-		case WireStartGroup:
-			err = w.WriteByte('{')
-			w.indent()
-		case WireVarint:
-			x, err = b.DecodeVarint()
-			err = writeUnknownInt(w, x, err)
-		default:
-			_, err = fmt.Fprintf(w, "/* unknown wire type %d */", wire)
-		}
-		if err != nil {
-			return err
-		}
-		if err = w.WriteByte('\n'); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func writeUnknownInt(w *textWriter, x uint64, err error) error {
-	if err == nil {
-		_, err = fmt.Fprint(w, x)
-	} else {
-		_, err = fmt.Fprintf(w, "/* %v */", err)
-	}
-	return err
-}
-
-type int32Slice []int32
-
-func (s int32Slice) Len() int           { return len(s) }
-func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] }
-func (s int32Slice) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
-
-// writeExtensions writes all the extensions in pv.
-// pv is assumed to be a pointer to a protocol message struct that is extendable.
-func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error {
-	emap := extensionMaps[pv.Type().Elem()]
-	ep, _ := extendable(pv.Interface())
-
-	// Order the extensions by ID.
-	// This isn't strictly necessary, but it will give us
-	// canonical output, which will also make testing easier.
-	m, mu := ep.extensionsRead()
-	if m == nil {
-		return nil
-	}
-	mu.Lock()
-	ids := make([]int32, 0, len(m))
-	for id := range m {
-		ids = append(ids, id)
-	}
-	sort.Sort(int32Slice(ids))
-	mu.Unlock()
-
-	for _, extNum := range ids {
-		ext := m[extNum]
-		var desc *ExtensionDesc
-		if emap != nil {
-			desc = emap[extNum]
-		}
-		if desc == nil {
-			// Unknown extension.
-			if err := writeUnknownStruct(w, ext.enc); err != nil {
-				return err
-			}
-			continue
-		}
-
-		pb, err := GetExtension(ep, desc)
-		if err != nil {
-			return fmt.Errorf("failed getting extension: %v", err)
-		}
-
-		// Repeated extensions will appear as a slice.
-		if !desc.repeated() {
-			if err := tm.writeExtension(w, desc.Name, pb); err != nil {
-				return err
-			}
-		} else {
-			v := reflect.ValueOf(pb)
-			for i := 0; i < v.Len(); i++ {
-				if err := tm.writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
-					return err
-				}
-			}
-		}
-	}
-	return nil
-}
-
-func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface{}) error {
-	if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil {
-		return err
-	}
-	if !w.compact {
-		if err := w.WriteByte(' '); err != nil {
-			return err
-		}
-	}
-	if err := tm.writeAny(w, reflect.ValueOf(pb), nil); err != nil {
-		return err
-	}
-	if err := w.WriteByte('\n'); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (w *textWriter) writeIndent() {
-	if !w.complete {
-		return
-	}
-	remain := w.ind * 2
-	for remain > 0 {
-		n := remain
-		if n > len(spaces) {
-			n = len(spaces)
-		}
-		w.w.Write(spaces[:n])
-		remain -= n
-	}
-	w.complete = false
-}
-
-// TextMarshaler is a configurable text format marshaler.
-type TextMarshaler struct {
-	Compact   bool // use compact text format (one line).
-	ExpandAny bool // expand google.protobuf.Any messages of known types
-}
-
-// Marshal writes a given protocol buffer in text format.
-// The only errors returned are from w.
-func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
-	val := reflect.ValueOf(pb)
-	if pb == nil || val.IsNil() {
-		w.Write([]byte("<nil>"))
-		return nil
-	}
-	var bw *bufio.Writer
-	ww, ok := w.(writer)
-	if !ok {
-		bw = bufio.NewWriter(w)
-		ww = bw
-	}
-	aw := &textWriter{
-		w:        ww,
-		complete: true,
-		compact:  tm.Compact,
-	}
-
-	if etm, ok := pb.(encoding.TextMarshaler); ok {
-		text, err := etm.MarshalText()
-		if err != nil {
-			return err
-		}
-		if _, err = aw.Write(text); err != nil {
-			return err
-		}
-		if bw != nil {
-			return bw.Flush()
-		}
-		return nil
-	}
-	// Dereference the received pointer so we don't have outer < and >.
-	v := reflect.Indirect(val)
-	if err := tm.writeStruct(aw, v); err != nil {
-		return err
-	}
-	if bw != nil {
-		return bw.Flush()
-	}
-	return nil
-}
-
-// Text is the same as Marshal, but returns the string directly.
-func (tm *TextMarshaler) Text(pb Message) string {
-	var buf bytes.Buffer
-	tm.Marshal(&buf, pb)
-	return buf.String()
-}
-
-var (
-	defaultTextMarshaler = TextMarshaler{}
-	compactTextMarshaler = TextMarshaler{Compact: true}
-)
-
-// TODO: consider removing some of the Marshal functions below.
-
-// MarshalText writes a given protocol buffer in text format.
-// The only errors returned are from w.
-func MarshalText(w io.Writer, pb Message) error { return defaultTextMarshaler.Marshal(w, pb) }
-
-// MarshalTextString is the same as MarshalText, but returns the string directly.
-func MarshalTextString(pb Message) string { return defaultTextMarshaler.Text(pb) }
-
-// CompactText writes a given protocol buffer in compact text format (one line).
-func CompactText(w io.Writer, pb Message) error { return compactTextMarshaler.Marshal(w, pb) }
-
-// CompactTextString is the same as CompactText, but returns the string directly.
-func CompactTextString(pb Message) string { return compactTextMarshaler.Text(pb) }
diff --git a/vendor/github.com/golang/protobuf/proto/text_parser.go b/vendor/github.com/golang/protobuf/proto/text_parser.go
deleted file mode 100644
index 61f83c1e..00000000
--- a/vendor/github.com/golang/protobuf/proto/text_parser.go
+++ /dev/null
@@ -1,895 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package proto
-
-// Functions for parsing the Text protocol buffer format.
-// TODO: message sets.
-
-import (
-	"encoding"
-	"errors"
-	"fmt"
-	"reflect"
-	"strconv"
-	"strings"
-	"unicode/utf8"
-)
-
-// Error string emitted when deserializing Any and fields are already set
-const anyRepeatedlyUnpacked = "Any message unpacked multiple times, or %q already set"
-
-type ParseError struct {
-	Message string
-	Line    int // 1-based line number
-	Offset  int // 0-based byte offset from start of input
-}
-
-func (p *ParseError) Error() string {
-	if p.Line == 1 {
-		// show offset only for first line
-		return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message)
-	}
-	return fmt.Sprintf("line %d: %v", p.Line, p.Message)
-}
-
-type token struct {
-	value    string
-	err      *ParseError
-	line     int    // line number
-	offset   int    // byte number from start of input, not start of line
-	unquoted string // the unquoted version of value, if it was a quoted string
-}
-
-func (t *token) String() string {
-	if t.err == nil {
-		return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset)
-	}
-	return fmt.Sprintf("parse error: %v", t.err)
-}
-
-type textParser struct {
-	s            string // remaining input
-	done         bool   // whether the parsing is finished (success or error)
-	backed       bool   // whether back() was called
-	offset, line int
-	cur          token
-}
-
-func newTextParser(s string) *textParser {
-	p := new(textParser)
-	p.s = s
-	p.line = 1
-	p.cur.line = 1
-	return p
-}
-
-func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
-	pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
-	p.cur.err = pe
-	p.done = true
-	return pe
-}
-
-// Numbers and identifiers are matched by [-+._A-Za-z0-9]
-func isIdentOrNumberChar(c byte) bool {
-	switch {
-	case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
-		return true
-	case '0' <= c && c <= '9':
-		return true
-	}
-	switch c {
-	case '-', '+', '.', '_':
-		return true
-	}
-	return false
-}
-
-func isWhitespace(c byte) bool {
-	switch c {
-	case ' ', '\t', '\n', '\r':
-		return true
-	}
-	return false
-}
-
-func isQuote(c byte) bool {
-	switch c {
-	case '"', '\'':
-		return true
-	}
-	return false
-}
-
-func (p *textParser) skipWhitespace() {
-	i := 0
-	for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
-		if p.s[i] == '#' {
-			// comment; skip to end of line or input
-			for i < len(p.s) && p.s[i] != '\n' {
-				i++
-			}
-			if i == len(p.s) {
-				break
-			}
-		}
-		if p.s[i] == '\n' {
-			p.line++
-		}
-		i++
-	}
-	p.offset += i
-	p.s = p.s[i:len(p.s)]
-	if len(p.s) == 0 {
-		p.done = true
-	}
-}
-
-func (p *textParser) advance() {
-	// Skip whitespace
-	p.skipWhitespace()
-	if p.done {
-		return
-	}
-
-	// Start of non-whitespace
-	p.cur.err = nil
-	p.cur.offset, p.cur.line = p.offset, p.line
-	p.cur.unquoted = ""
-	switch p.s[0] {
-	case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
-		// Single symbol
-		p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
-	case '"', '\'':
-		// Quoted string
-		i := 1
-		for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
-			if p.s[i] == '\\' && i+1 < len(p.s) {
-				// skip escaped char
-				i++
-			}
-			i++
-		}
-		if i >= len(p.s) || p.s[i] != p.s[0] {
-			p.errorf("unmatched quote")
-			return
-		}
-		unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
-		if err != nil {
-			p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
-			return
-		}
-		p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
-		p.cur.unquoted = unq
-	default:
-		i := 0
-		for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
-			i++
-		}
-		if i == 0 {
-			p.errorf("unexpected byte %#x", p.s[0])
-			return
-		}
-		p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
-	}
-	p.offset += len(p.cur.value)
-}
-
-var (
-	errBadUTF8 = errors.New("proto: bad UTF-8")
-	errBadHex  = errors.New("proto: bad hexadecimal")
-)
-
-func unquoteC(s string, quote rune) (string, error) {
-	// This is based on C++'s tokenizer.cc.
-	// Despite its name, this is *not* parsing C syntax.
-	// For instance, "\0" is an invalid quoted string.
-
-	// Avoid allocation in trivial cases.
-	simple := true
-	for _, r := range s {
-		if r == '\\' || r == quote {
-			simple = false
-			break
-		}
-	}
-	if simple {
-		return s, nil
-	}
-
-	buf := make([]byte, 0, 3*len(s)/2)
-	for len(s) > 0 {
-		r, n := utf8.DecodeRuneInString(s)
-		if r == utf8.RuneError && n == 1 {
-			return "", errBadUTF8
-		}
-		s = s[n:]
-		if r != '\\' {
-			if r < utf8.RuneSelf {
-				buf = append(buf, byte(r))
-			} else {
-				buf = append(buf, string(r)...)
-			}
-			continue
-		}
-
-		ch, tail, err := unescape(s)
-		if err != nil {
-			return "", err
-		}
-		buf = append(buf, ch...)
-		s = tail
-	}
-	return string(buf), nil
-}
-
-func unescape(s string) (ch string, tail string, err error) {
-	r, n := utf8.DecodeRuneInString(s)
-	if r == utf8.RuneError && n == 1 {
-		return "", "", errBadUTF8
-	}
-	s = s[n:]
-	switch r {
-	case 'a':
-		return "\a", s, nil
-	case 'b':
-		return "\b", s, nil
-	case 'f':
-		return "\f", s, nil
-	case 'n':
-		return "\n", s, nil
-	case 'r':
-		return "\r", s, nil
-	case 't':
-		return "\t", s, nil
-	case 'v':
-		return "\v", s, nil
-	case '?':
-		return "?", s, nil // trigraph workaround
-	case '\'', '"', '\\':
-		return string(r), s, nil
-	case '0', '1', '2', '3', '4', '5', '6', '7', 'x', 'X':
-		if len(s) < 2 {
-			return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
-		}
-		base := 8
-		ss := s[:2]
-		s = s[2:]
-		if r == 'x' || r == 'X' {
-			base = 16
-		} else {
-			ss = string(r) + ss
-		}
-		i, err := strconv.ParseUint(ss, base, 8)
-		if err != nil {
-			return "", "", err
-		}
-		return string([]byte{byte(i)}), s, nil
-	case 'u', 'U':
-		n := 4
-		if r == 'U' {
-			n = 8
-		}
-		if len(s) < n {
-			return "", "", fmt.Errorf(`\%c requires %d digits`, r, n)
-		}
-
-		bs := make([]byte, n/2)
-		for i := 0; i < n; i += 2 {
-			a, ok1 := unhex(s[i])
-			b, ok2 := unhex(s[i+1])
-			if !ok1 || !ok2 {
-				return "", "", errBadHex
-			}
-			bs[i/2] = a<<4 | b
-		}
-		s = s[n:]
-		return string(bs), s, nil
-	}
-	return "", "", fmt.Errorf(`unknown escape \%c`, r)
-}
-
-// Adapted from src/pkg/strconv/quote.go.
-func unhex(b byte) (v byte, ok bool) {
-	switch {
-	case '0' <= b && b <= '9':
-		return b - '0', true
-	case 'a' <= b && b <= 'f':
-		return b - 'a' + 10, true
-	case 'A' <= b && b <= 'F':
-		return b - 'A' + 10, true
-	}
-	return 0, false
-}
-
-// Back off the parser by one token. Can only be done between calls to next().
-// It makes the next advance() a no-op.
-func (p *textParser) back() { p.backed = true }
-
-// Advances the parser and returns the new current token.
-func (p *textParser) next() *token {
-	if p.backed || p.done {
-		p.backed = false
-		return &p.cur
-	}
-	p.advance()
-	if p.done {
-		p.cur.value = ""
-	} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
-		// Look for multiple quoted strings separated by whitespace,
-		// and concatenate them.
-		cat := p.cur
-		for {
-			p.skipWhitespace()
-			if p.done || !isQuote(p.s[0]) {
-				break
-			}
-			p.advance()
-			if p.cur.err != nil {
-				return &p.cur
-			}
-			cat.value += " " + p.cur.value
-			cat.unquoted += p.cur.unquoted
-		}
-		p.done = false // parser may have seen EOF, but we want to return cat
-		p.cur = cat
-	}
-	return &p.cur
-}
-
-func (p *textParser) consumeToken(s string) error {
-	tok := p.next()
-	if tok.err != nil {
-		return tok.err
-	}
-	if tok.value != s {
-		p.back()
-		return p.errorf("expected %q, found %q", s, tok.value)
-	}
-	return nil
-}
-
-// Return a RequiredNotSetError indicating which required field was not set.
-func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError {
-	st := sv.Type()
-	sprops := GetProperties(st)
-	for i := 0; i < st.NumField(); i++ {
-		if !isNil(sv.Field(i)) {
-			continue
-		}
-
-		props := sprops.Prop[i]
-		if props.Required {
-			return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)}
-		}
-	}
-	return &RequiredNotSetError{fmt.Sprintf("%v.<unknown field name>", st)} // should not happen
-}
-
-// Returns the index in the struct for the named field, as well as the parsed tag properties.
-func structFieldByName(sprops *StructProperties, name string) (int, *Properties, bool) {
-	i, ok := sprops.decoderOrigNames[name]
-	if ok {
-		return i, sprops.Prop[i], true
-	}
-	return -1, nil, false
-}
-
-// Consume a ':' from the input stream (if the next token is a colon),
-// returning an error if a colon is needed but not present.
-func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError {
-	tok := p.next()
-	if tok.err != nil {
-		return tok.err
-	}
-	if tok.value != ":" {
-		// Colon is optional when the field is a group or message.
-		needColon := true
-		switch props.Wire {
-		case "group":
-			needColon = false
-		case "bytes":
-			// A "bytes" field is either a message, a string, or a repeated field;
-			// those three become *T, *string and []T respectively, so we can check for
-			// this field being a pointer to a non-string.
-			if typ.Kind() == reflect.Ptr {
-				// *T or *string
-				if typ.Elem().Kind() == reflect.String {
-					break
-				}
-			} else if typ.Kind() == reflect.Slice {
-				// []T or []*T
-				if typ.Elem().Kind() != reflect.Ptr {
-					break
-				}
-			} else if typ.Kind() == reflect.String {
-				// The proto3 exception is for a string field,
-				// which requires a colon.
-				break
-			}
-			needColon = false
-		}
-		if needColon {
-			return p.errorf("expected ':', found %q", tok.value)
-		}
-		p.back()
-	}
-	return nil
-}
-
-func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
-	st := sv.Type()
-	sprops := GetProperties(st)
-	reqCount := sprops.reqCount
-	var reqFieldErr error
-	fieldSet := make(map[string]bool)
-	// A struct is a sequence of "name: value", terminated by one of
-	// '>' or '}', or the end of the input.  A name may also be
-	// "[extension]" or "[type/url]".
-	//
-	// The whole struct can also be an expanded Any message, like:
-	// [type/url] < ... struct contents ... >
-	for {
-		tok := p.next()
-		if tok.err != nil {
-			return tok.err
-		}
-		if tok.value == terminator {
-			break
-		}
-		if tok.value == "[" {
-			// Looks like an extension or an Any.
-			//
-			// TODO: Check whether we need to handle
-			// namespace rooted names (e.g. ".something.Foo").
-			extName, err := p.consumeExtName()
-			if err != nil {
-				return err
-			}
-
-			if s := strings.LastIndex(extName, "/"); s >= 0 {
-				// If it contains a slash, it's an Any type URL.
-				messageName := extName[s+1:]
-				mt := MessageType(messageName)
-				if mt == nil {
-					return p.errorf("unrecognized message %q in google.protobuf.Any", messageName)
-				}
-				tok = p.next()
-				if tok.err != nil {
-					return tok.err
-				}
-				// consume an optional colon
-				if tok.value == ":" {
-					tok = p.next()
-					if tok.err != nil {
-						return tok.err
-					}
-				}
-				var terminator string
-				switch tok.value {
-				case "<":
-					terminator = ">"
-				case "{":
-					terminator = "}"
-				default:
-					return p.errorf("expected '{' or '<', found %q", tok.value)
-				}
-				v := reflect.New(mt.Elem())
-				if pe := p.readStruct(v.Elem(), terminator); pe != nil {
-					return pe
-				}
-				b, err := Marshal(v.Interface().(Message))
-				if err != nil {
-					return p.errorf("failed to marshal message of type %q: %v", messageName, err)
-				}
-				if fieldSet["type_url"] {
-					return p.errorf(anyRepeatedlyUnpacked, "type_url")
-				}
-				if fieldSet["value"] {
-					return p.errorf(anyRepeatedlyUnpacked, "value")
-				}
-				sv.FieldByName("TypeUrl").SetString(extName)
-				sv.FieldByName("Value").SetBytes(b)
-				fieldSet["type_url"] = true
-				fieldSet["value"] = true
-				continue
-			}
-
-			var desc *ExtensionDesc
-			// This could be faster, but it's functional.
-			// TODO: Do something smarter than a linear scan.
-			for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
-				if d.Name == extName {
-					desc = d
-					break
-				}
-			}
-			if desc == nil {
-				return p.errorf("unrecognized extension %q", extName)
-			}
-
-			props := &Properties{}
-			props.Parse(desc.Tag)
-
-			typ := reflect.TypeOf(desc.ExtensionType)
-			if err := p.checkForColon(props, typ); err != nil {
-				return err
-			}
-
-			rep := desc.repeated()
-
-			// Read the extension structure, and set it in
-			// the value we're constructing.
-			var ext reflect.Value
-			if !rep {
-				ext = reflect.New(typ).Elem()
-			} else {
-				ext = reflect.New(typ.Elem()).Elem()
-			}
-			if err := p.readAny(ext, props); err != nil {
-				if _, ok := err.(*RequiredNotSetError); !ok {
-					return err
-				}
-				reqFieldErr = err
-			}
-			ep := sv.Addr().Interface().(Message)
-			if !rep {
-				SetExtension(ep, desc, ext.Interface())
-			} else {
-				old, err := GetExtension(ep, desc)
-				var sl reflect.Value
-				if err == nil {
-					sl = reflect.ValueOf(old) // existing slice
-				} else {
-					sl = reflect.MakeSlice(typ, 0, 1)
-				}
-				sl = reflect.Append(sl, ext)
-				SetExtension(ep, desc, sl.Interface())
-			}
-			if err := p.consumeOptionalSeparator(); err != nil {
-				return err
-			}
-			continue
-		}
-
-		// This is a normal, non-extension field.
-		name := tok.value
-		var dst reflect.Value
-		fi, props, ok := structFieldByName(sprops, name)
-		if ok {
-			dst = sv.Field(fi)
-		} else if oop, ok := sprops.OneofTypes[name]; ok {
-			// It is a oneof.
-			props = oop.Prop
-			nv := reflect.New(oop.Type.Elem())
-			dst = nv.Elem().Field(0)
-			field := sv.Field(oop.Field)
-			if !field.IsNil() {
-				return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, sv.Type().Field(oop.Field).Name)
-			}
-			field.Set(nv)
-		}
-		if !dst.IsValid() {
-			return p.errorf("unknown field name %q in %v", name, st)
-		}
-
-		if dst.Kind() == reflect.Map {
-			// Consume any colon.
-			if err := p.checkForColon(props, dst.Type()); err != nil {
-				return err
-			}
-
-			// Construct the map if it doesn't already exist.
-			if dst.IsNil() {
-				dst.Set(reflect.MakeMap(dst.Type()))
-			}
-			key := reflect.New(dst.Type().Key()).Elem()
-			val := reflect.New(dst.Type().Elem()).Elem()
-
-			// The map entry should be this sequence of tokens:
-			//	< key : KEY value : VALUE >
-			// However, implementations may omit key or value, and technically
-			// we should support them in any order.  See b/28924776 for a time
-			// this went wrong.
-
-			tok := p.next()
-			var terminator string
-			switch tok.value {
-			case "<":
-				terminator = ">"
-			case "{":
-				terminator = "}"
-			default:
-				return p.errorf("expected '{' or '<', found %q", tok.value)
-			}
-			for {
-				tok := p.next()
-				if tok.err != nil {
-					return tok.err
-				}
-				if tok.value == terminator {
-					break
-				}
-				switch tok.value {
-				case "key":
-					if err := p.consumeToken(":"); err != nil {
-						return err
-					}
-					if err := p.readAny(key, props.mkeyprop); err != nil {
-						return err
-					}
-					if err := p.consumeOptionalSeparator(); err != nil {
-						return err
-					}
-				case "value":
-					if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil {
-						return err
-					}
-					if err := p.readAny(val, props.mvalprop); err != nil {
-						return err
-					}
-					if err := p.consumeOptionalSeparator(); err != nil {
-						return err
-					}
-				default:
-					p.back()
-					return p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value)
-				}
-			}
-
-			dst.SetMapIndex(key, val)
-			continue
-		}
-
-		// Check that it's not already set if it's not a repeated field.
-		if !props.Repeated && fieldSet[name] {
-			return p.errorf("non-repeated field %q was repeated", name)
-		}
-
-		if err := p.checkForColon(props, dst.Type()); err != nil {
-			return err
-		}
-
-		// Parse into the field.
-		fieldSet[name] = true
-		if err := p.readAny(dst, props); err != nil {
-			if _, ok := err.(*RequiredNotSetError); !ok {
-				return err
-			}
-			reqFieldErr = err
-		}
-		if props.Required {
-			reqCount--
-		}
-
-		if err := p.consumeOptionalSeparator(); err != nil {
-			return err
-		}
-
-	}
-
-	if reqCount > 0 {
-		return p.missingRequiredFieldError(sv)
-	}
-	return reqFieldErr
-}
-
-// consumeExtName consumes extension name or expanded Any type URL and the
-// following ']'. It returns the name or URL consumed.
-func (p *textParser) consumeExtName() (string, error) {
-	tok := p.next()
-	if tok.err != nil {
-		return "", tok.err
-	}
-
-	// If extension name or type url is quoted, it's a single token.
-	if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
-		name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
-		if err != nil {
-			return "", err
-		}
-		return name, p.consumeToken("]")
-	}
-
-	// Consume everything up to "]"
-	var parts []string
-	for tok.value != "]" {
-		parts = append(parts, tok.value)
-		tok = p.next()
-		if tok.err != nil {
-			return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
-		}
-	}
-	return strings.Join(parts, ""), nil
-}
-
-// consumeOptionalSeparator consumes an optional semicolon or comma.
-// It is used in readStruct to provide backward compatibility.
-func (p *textParser) consumeOptionalSeparator() error {
-	tok := p.next()
-	if tok.err != nil {
-		return tok.err
-	}
-	if tok.value != ";" && tok.value != "," {
-		p.back()
-	}
-	return nil
-}
-
-func (p *textParser) readAny(v reflect.Value, props *Properties) error {
-	tok := p.next()
-	if tok.err != nil {
-		return tok.err
-	}
-	if tok.value == "" {
-		return p.errorf("unexpected EOF")
-	}
-
-	switch fv := v; fv.Kind() {
-	case reflect.Slice:
-		at := v.Type()
-		if at.Elem().Kind() == reflect.Uint8 {
-			// Special case for []byte
-			if tok.value[0] != '"' && tok.value[0] != '\'' {
-				// Deliberately written out here, as the error after
-				// this switch statement would write "invalid []byte: ...",
-				// which is not as user-friendly.
-				return p.errorf("invalid string: %v", tok.value)
-			}
-			bytes := []byte(tok.unquoted)
-			fv.Set(reflect.ValueOf(bytes))
-			return nil
-		}
-		// Repeated field.
-		if tok.value == "[" {
-			// Repeated field with list notation, like [1,2,3].
-			for {
-				fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
-				err := p.readAny(fv.Index(fv.Len()-1), props)
-				if err != nil {
-					return err
-				}
-				tok := p.next()
-				if tok.err != nil {
-					return tok.err
-				}
-				if tok.value == "]" {
-					break
-				}
-				if tok.value != "," {
-					return p.errorf("Expected ']' or ',' found %q", tok.value)
-				}
-			}
-			return nil
-		}
-		// One value of the repeated field.
-		p.back()
-		fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
-		return p.readAny(fv.Index(fv.Len()-1), props)
-	case reflect.Bool:
-		// true/1/t/True or false/f/0/False.
-		switch tok.value {
-		case "true", "1", "t", "True":
-			fv.SetBool(true)
-			return nil
-		case "false", "0", "f", "False":
-			fv.SetBool(false)
-			return nil
-		}
-	case reflect.Float32, reflect.Float64:
-		v := tok.value
-		// Ignore 'f' for compatibility with output generated by C++, but don't
-		// remove 'f' when the value is "-inf" or "inf".
-		if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" {
-			v = v[:len(v)-1]
-		}
-		if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil {
-			fv.SetFloat(f)
-			return nil
-		}
-	case reflect.Int32:
-		if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
-			fv.SetInt(x)
-			return nil
-		}
-
-		if len(props.Enum) == 0 {
-			break
-		}
-		m, ok := enumValueMaps[props.Enum]
-		if !ok {
-			break
-		}
-		x, ok := m[tok.value]
-		if !ok {
-			break
-		}
-		fv.SetInt(int64(x))
-		return nil
-	case reflect.Int64:
-		if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
-			fv.SetInt(x)
-			return nil
-		}
-
-	case reflect.Ptr:
-		// A basic field (indirected through pointer), or a repeated message/group
-		p.back()
-		fv.Set(reflect.New(fv.Type().Elem()))
-		return p.readAny(fv.Elem(), props)
-	case reflect.String:
-		if tok.value[0] == '"' || tok.value[0] == '\'' {
-			fv.SetString(tok.unquoted)
-			return nil
-		}
-	case reflect.Struct:
-		var terminator string
-		switch tok.value {
-		case "{":
-			terminator = "}"
-		case "<":
-			terminator = ">"
-		default:
-			return p.errorf("expected '{' or '<', found %q", tok.value)
-		}
-		// TODO: Handle nested messages which implement encoding.TextUnmarshaler.
-		return p.readStruct(fv, terminator)
-	case reflect.Uint32:
-		if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
-			fv.SetUint(uint64(x))
-			return nil
-		}
-	case reflect.Uint64:
-		if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
-			fv.SetUint(x)
-			return nil
-		}
-	}
-	return p.errorf("invalid %v: %v", v.Type(), tok.value)
-}
-
-// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb
-// before starting to unmarshal, so any existing data in pb is always removed.
-// If a required field is not set and no other error occurs,
-// UnmarshalText returns *RequiredNotSetError.
-func UnmarshalText(s string, pb Message) error {
-	if um, ok := pb.(encoding.TextUnmarshaler); ok {
-		err := um.UnmarshalText([]byte(s))
-		return err
-	}
-	pb.Reset()
-	v := reflect.ValueOf(pb)
-	if pe := newTextParser(s).readStruct(v.Elem(), ""); pe != nil {
-		return pe
-	}
-	return nil
-}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/Makefile b/vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/Makefile
deleted file mode 100644
index 4942418e..00000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/Makefile
+++ /dev/null
@@ -1,39 +0,0 @@
-# Go support for Protocol Buffers - Google's data interchange format
-#
-# Copyright 2010 The Go Authors.  All rights reserved.
-# https://github.com/golang/protobuf
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# Not stored here, but descriptor.proto is in https://github.com/google/protobuf/
-# at src/google/protobuf/descriptor.proto
-regenerate:
-	echo WARNING! THIS RULE IS PROBABLY NOT RIGHT FOR YOUR INSTALLATION
-	protoc --go_out=. -I$(HOME)/src/protobuf/src $(HOME)/src/protobuf/src/google/protobuf/descriptor.proto && \
-		sed 's,^package google_protobuf,package descriptor,' google/protobuf/descriptor.pb.go > \
-		$(GOPATH)/src/github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.pb.go && \
-		rm -f google/protobuf/descriptor.pb.go
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.pb.go b/vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.pb.go
index a1d8a764..a5a13861 100644
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.pb.go
+++ b/vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.pb.go
@@ -1,2065 +1,324 @@
-// Code generated by protoc-gen-go.
-// source: google/protobuf/descriptor.proto
-// DO NOT EDIT!
-
-/*
-Package descriptor is a generated protocol buffer package.
-
-It is generated from these files:
-	google/protobuf/descriptor.proto
-
-It has these top-level messages:
-	FileDescriptorSet
-	FileDescriptorProto
-	DescriptorProto
-	FieldDescriptorProto
-	OneofDescriptorProto
-	EnumDescriptorProto
-	EnumValueDescriptorProto
-	ServiceDescriptorProto
-	MethodDescriptorProto
-	FileOptions
-	MessageOptions
-	FieldOptions
-	OneofOptions
-	EnumOptions
-	EnumValueOptions
-	ServiceOptions
-	MethodOptions
-	UninterpretedOption
-	SourceCodeInfo
-	GeneratedCodeInfo
-*/
-package descriptor
-
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-type FieldDescriptorProto_Type int32
-
-const (
-	// 0 is reserved for errors.
-	// Order is weird for historical reasons.
-	FieldDescriptorProto_TYPE_DOUBLE FieldDescriptorProto_Type = 1
-	FieldDescriptorProto_TYPE_FLOAT  FieldDescriptorProto_Type = 2
-	// Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT64 if
-	// negative values are likely.
-	FieldDescriptorProto_TYPE_INT64  FieldDescriptorProto_Type = 3
-	FieldDescriptorProto_TYPE_UINT64 FieldDescriptorProto_Type = 4
-	// Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT32 if
-	// negative values are likely.
-	FieldDescriptorProto_TYPE_INT32   FieldDescriptorProto_Type = 5
-	FieldDescriptorProto_TYPE_FIXED64 FieldDescriptorProto_Type = 6
-	FieldDescriptorProto_TYPE_FIXED32 FieldDescriptorProto_Type = 7
-	FieldDescriptorProto_TYPE_BOOL    FieldDescriptorProto_Type = 8
-	FieldDescriptorProto_TYPE_STRING  FieldDescriptorProto_Type = 9
-	FieldDescriptorProto_TYPE_GROUP   FieldDescriptorProto_Type = 10
-	FieldDescriptorProto_TYPE_MESSAGE FieldDescriptorProto_Type = 11
-	// New in version 2.
-	FieldDescriptorProto_TYPE_BYTES    FieldDescriptorProto_Type = 12
-	FieldDescriptorProto_TYPE_UINT32   FieldDescriptorProto_Type = 13
-	FieldDescriptorProto_TYPE_ENUM     FieldDescriptorProto_Type = 14
-	FieldDescriptorProto_TYPE_SFIXED32 FieldDescriptorProto_Type = 15
-	FieldDescriptorProto_TYPE_SFIXED64 FieldDescriptorProto_Type = 16
-	FieldDescriptorProto_TYPE_SINT32   FieldDescriptorProto_Type = 17
-	FieldDescriptorProto_TYPE_SINT64   FieldDescriptorProto_Type = 18
-)
-
-var FieldDescriptorProto_Type_name = map[int32]string{
-	1:  "TYPE_DOUBLE",
-	2:  "TYPE_FLOAT",
-	3:  "TYPE_INT64",
-	4:  "TYPE_UINT64",
-	5:  "TYPE_INT32",
-	6:  "TYPE_FIXED64",
-	7:  "TYPE_FIXED32",
-	8:  "TYPE_BOOL",
-	9:  "TYPE_STRING",
-	10: "TYPE_GROUP",
-	11: "TYPE_MESSAGE",
-	12: "TYPE_BYTES",
-	13: "TYPE_UINT32",
-	14: "TYPE_ENUM",
-	15: "TYPE_SFIXED32",
-	16: "TYPE_SFIXED64",
-	17: "TYPE_SINT32",
-	18: "TYPE_SINT64",
-}
-var FieldDescriptorProto_Type_value = map[string]int32{
-	"TYPE_DOUBLE":   1,
-	"TYPE_FLOAT":    2,
-	"TYPE_INT64":    3,
-	"TYPE_UINT64":   4,
-	"TYPE_INT32":    5,
-	"TYPE_FIXED64":  6,
-	"TYPE_FIXED32":  7,
-	"TYPE_BOOL":     8,
-	"TYPE_STRING":   9,
-	"TYPE_GROUP":    10,
-	"TYPE_MESSAGE":  11,
-	"TYPE_BYTES":    12,
-	"TYPE_UINT32":   13,
-	"TYPE_ENUM":     14,
-	"TYPE_SFIXED32": 15,
-	"TYPE_SFIXED64": 16,
-	"TYPE_SINT32":   17,
-	"TYPE_SINT64":   18,
-}
-
-func (x FieldDescriptorProto_Type) Enum() *FieldDescriptorProto_Type {
-	p := new(FieldDescriptorProto_Type)
-	*p = x
-	return p
-}
-func (x FieldDescriptorProto_Type) String() string {
-	return proto.EnumName(FieldDescriptorProto_Type_name, int32(x))
-}
-func (x *FieldDescriptorProto_Type) UnmarshalJSON(data []byte) error {
-	value, err := proto.UnmarshalJSONEnum(FieldDescriptorProto_Type_value, data, "FieldDescriptorProto_Type")
-	if err != nil {
-		return err
-	}
-	*x = FieldDescriptorProto_Type(value)
-	return nil
-}
-func (FieldDescriptorProto_Type) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{3, 0} }
-
-type FieldDescriptorProto_Label int32
-
-const (
-	// 0 is reserved for errors
-	FieldDescriptorProto_LABEL_OPTIONAL FieldDescriptorProto_Label = 1
-	FieldDescriptorProto_LABEL_REQUIRED FieldDescriptorProto_Label = 2
-	FieldDescriptorProto_LABEL_REPEATED FieldDescriptorProto_Label = 3
-)
-
-var FieldDescriptorProto_Label_name = map[int32]string{
-	1: "LABEL_OPTIONAL",
-	2: "LABEL_REQUIRED",
-	3: "LABEL_REPEATED",
-}
-var FieldDescriptorProto_Label_value = map[string]int32{
-	"LABEL_OPTIONAL": 1,
-	"LABEL_REQUIRED": 2,
-	"LABEL_REPEATED": 3,
-}
-
-func (x FieldDescriptorProto_Label) Enum() *FieldDescriptorProto_Label {
-	p := new(FieldDescriptorProto_Label)
-	*p = x
-	return p
-}
-func (x FieldDescriptorProto_Label) String() string {
-	return proto.EnumName(FieldDescriptorProto_Label_name, int32(x))
-}
-func (x *FieldDescriptorProto_Label) UnmarshalJSON(data []byte) error {
-	value, err := proto.UnmarshalJSONEnum(FieldDescriptorProto_Label_value, data, "FieldDescriptorProto_Label")
-	if err != nil {
-		return err
-	}
-	*x = FieldDescriptorProto_Label(value)
-	return nil
-}
-func (FieldDescriptorProto_Label) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor0, []int{3, 1}
-}
-
-// Generated classes can be optimized for speed or code size.
-type FileOptions_OptimizeMode int32
-
-const (
-	FileOptions_SPEED FileOptions_OptimizeMode = 1
-	// etc.
-	FileOptions_CODE_SIZE    FileOptions_OptimizeMode = 2
-	FileOptions_LITE_RUNTIME FileOptions_OptimizeMode = 3
-)
-
-var FileOptions_OptimizeMode_name = map[int32]string{
-	1: "SPEED",
-	2: "CODE_SIZE",
-	3: "LITE_RUNTIME",
-}
-var FileOptions_OptimizeMode_value = map[string]int32{
-	"SPEED":        1,
-	"CODE_SIZE":    2,
-	"LITE_RUNTIME": 3,
-}
-
-func (x FileOptions_OptimizeMode) Enum() *FileOptions_OptimizeMode {
-	p := new(FileOptions_OptimizeMode)
-	*p = x
-	return p
-}
-func (x FileOptions_OptimizeMode) String() string {
-	return proto.EnumName(FileOptions_OptimizeMode_name, int32(x))
-}
-func (x *FileOptions_OptimizeMode) UnmarshalJSON(data []byte) error {
-	value, err := proto.UnmarshalJSONEnum(FileOptions_OptimizeMode_value, data, "FileOptions_OptimizeMode")
-	if err != nil {
-		return err
-	}
-	*x = FileOptions_OptimizeMode(value)
-	return nil
-}
-func (FileOptions_OptimizeMode) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{9, 0} }
-
-type FieldOptions_CType int32
-
-const (
-	// Default mode.
-	FieldOptions_STRING       FieldOptions_CType = 0
-	FieldOptions_CORD         FieldOptions_CType = 1
-	FieldOptions_STRING_PIECE FieldOptions_CType = 2
-)
-
-var FieldOptions_CType_name = map[int32]string{
-	0: "STRING",
-	1: "CORD",
-	2: "STRING_PIECE",
-}
-var FieldOptions_CType_value = map[string]int32{
-	"STRING":       0,
-	"CORD":         1,
-	"STRING_PIECE": 2,
-}
-
-func (x FieldOptions_CType) Enum() *FieldOptions_CType {
-	p := new(FieldOptions_CType)
-	*p = x
-	return p
-}
-func (x FieldOptions_CType) String() string {
-	return proto.EnumName(FieldOptions_CType_name, int32(x))
-}
-func (x *FieldOptions_CType) UnmarshalJSON(data []byte) error {
-	value, err := proto.UnmarshalJSONEnum(FieldOptions_CType_value, data, "FieldOptions_CType")
-	if err != nil {
-		return err
-	}
-	*x = FieldOptions_CType(value)
-	return nil
-}
-func (FieldOptions_CType) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{11, 0} }
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.proto
 
-type FieldOptions_JSType int32
+package descriptor
 
-const (
-	// Use the default type.
-	FieldOptions_JS_NORMAL FieldOptions_JSType = 0
-	// Use JavaScript strings.
-	FieldOptions_JS_STRING FieldOptions_JSType = 1
-	// Use JavaScript numbers.
-	FieldOptions_JS_NUMBER FieldOptions_JSType = 2
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	descriptorpb "google.golang.org/protobuf/types/descriptorpb"
+	reflect "reflect"
 )
 
-var FieldOptions_JSType_name = map[int32]string{
-	0: "JS_NORMAL",
-	1: "JS_STRING",
-	2: "JS_NUMBER",
-}
-var FieldOptions_JSType_value = map[string]int32{
-	"JS_NORMAL": 0,
-	"JS_STRING": 1,
-	"JS_NUMBER": 2,
-}
-
-func (x FieldOptions_JSType) Enum() *FieldOptions_JSType {
-	p := new(FieldOptions_JSType)
-	*p = x
-	return p
-}
-func (x FieldOptions_JSType) String() string {
-	return proto.EnumName(FieldOptions_JSType_name, int32(x))
-}
-func (x *FieldOptions_JSType) UnmarshalJSON(data []byte) error {
-	value, err := proto.UnmarshalJSONEnum(FieldOptions_JSType_value, data, "FieldOptions_JSType")
-	if err != nil {
-		return err
-	}
-	*x = FieldOptions_JSType(value)
-	return nil
-}
-func (FieldOptions_JSType) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{11, 1} }
-
-// The protocol compiler can output a FileDescriptorSet containing the .proto
-// files it parses.
-type FileDescriptorSet struct {
-	File             []*FileDescriptorProto `protobuf:"bytes,1,rep,name=file" json:"file,omitempty"`
-	XXX_unrecognized []byte                 `json:"-"`
-}
-
-func (m *FileDescriptorSet) Reset()                    { *m = FileDescriptorSet{} }
-func (m *FileDescriptorSet) String() string            { return proto.CompactTextString(m) }
-func (*FileDescriptorSet) ProtoMessage()               {}
-func (*FileDescriptorSet) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-
-func (m *FileDescriptorSet) GetFile() []*FileDescriptorProto {
-	if m != nil {
-		return m.File
-	}
-	return nil
-}
-
-// Describes a complete .proto file.
-type FileDescriptorProto struct {
-	Name    *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Package *string `protobuf:"bytes,2,opt,name=package" json:"package,omitempty"`
-	// Names of files imported by this file.
-	Dependency []string `protobuf:"bytes,3,rep,name=dependency" json:"dependency,omitempty"`
-	// Indexes of the public imported files in the dependency list above.
-	PublicDependency []int32 `protobuf:"varint,10,rep,name=public_dependency,json=publicDependency" json:"public_dependency,omitempty"`
-	// Indexes of the weak imported files in the dependency list.
-	// For Google-internal migration only. Do not use.
-	WeakDependency []int32 `protobuf:"varint,11,rep,name=weak_dependency,json=weakDependency" json:"weak_dependency,omitempty"`
-	// All top-level definitions in this file.
-	MessageType []*DescriptorProto        `protobuf:"bytes,4,rep,name=message_type,json=messageType" json:"message_type,omitempty"`
-	EnumType    []*EnumDescriptorProto    `protobuf:"bytes,5,rep,name=enum_type,json=enumType" json:"enum_type,omitempty"`
-	Service     []*ServiceDescriptorProto `protobuf:"bytes,6,rep,name=service" json:"service,omitempty"`
-	Extension   []*FieldDescriptorProto   `protobuf:"bytes,7,rep,name=extension" json:"extension,omitempty"`
-	Options     *FileOptions              `protobuf:"bytes,8,opt,name=options" json:"options,omitempty"`
-	// This field contains optional information about the original source code.
-	// You may safely remove this entire field without harming runtime
-	// functionality of the descriptors -- the information is needed only by
-	// development tools.
-	SourceCodeInfo *SourceCodeInfo `protobuf:"bytes,9,opt,name=source_code_info,json=sourceCodeInfo" json:"source_code_info,omitempty"`
-	// The syntax of the proto file.
-	// The supported values are "proto2" and "proto3".
-	Syntax           *string `protobuf:"bytes,12,opt,name=syntax" json:"syntax,omitempty"`
-	XXX_unrecognized []byte  `json:"-"`
-}
-
-func (m *FileDescriptorProto) Reset()                    { *m = FileDescriptorProto{} }
-func (m *FileDescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*FileDescriptorProto) ProtoMessage()               {}
-func (*FileDescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
-
-func (m *FileDescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *FileDescriptorProto) GetPackage() string {
-	if m != nil && m.Package != nil {
-		return *m.Package
-	}
-	return ""
-}
-
-func (m *FileDescriptorProto) GetDependency() []string {
-	if m != nil {
-		return m.Dependency
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetPublicDependency() []int32 {
-	if m != nil {
-		return m.PublicDependency
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetWeakDependency() []int32 {
-	if m != nil {
-		return m.WeakDependency
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetMessageType() []*DescriptorProto {
-	if m != nil {
-		return m.MessageType
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetEnumType() []*EnumDescriptorProto {
-	if m != nil {
-		return m.EnumType
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetService() []*ServiceDescriptorProto {
-	if m != nil {
-		return m.Service
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetExtension() []*FieldDescriptorProto {
-	if m != nil {
-		return m.Extension
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetOptions() *FileOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetSourceCodeInfo() *SourceCodeInfo {
-	if m != nil {
-		return m.SourceCodeInfo
-	}
-	return nil
-}
-
-func (m *FileDescriptorProto) GetSyntax() string {
-	if m != nil && m.Syntax != nil {
-		return *m.Syntax
-	}
-	return ""
-}
-
-// Describes a message type.
-type DescriptorProto struct {
-	Name           *string                           `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Field          []*FieldDescriptorProto           `protobuf:"bytes,2,rep,name=field" json:"field,omitempty"`
-	Extension      []*FieldDescriptorProto           `protobuf:"bytes,6,rep,name=extension" json:"extension,omitempty"`
-	NestedType     []*DescriptorProto                `protobuf:"bytes,3,rep,name=nested_type,json=nestedType" json:"nested_type,omitempty"`
-	EnumType       []*EnumDescriptorProto            `protobuf:"bytes,4,rep,name=enum_type,json=enumType" json:"enum_type,omitempty"`
-	ExtensionRange []*DescriptorProto_ExtensionRange `protobuf:"bytes,5,rep,name=extension_range,json=extensionRange" json:"extension_range,omitempty"`
-	OneofDecl      []*OneofDescriptorProto           `protobuf:"bytes,8,rep,name=oneof_decl,json=oneofDecl" json:"oneof_decl,omitempty"`
-	Options        *MessageOptions                   `protobuf:"bytes,7,opt,name=options" json:"options,omitempty"`
-	ReservedRange  []*DescriptorProto_ReservedRange  `protobuf:"bytes,9,rep,name=reserved_range,json=reservedRange" json:"reserved_range,omitempty"`
-	// Reserved field names, which may not be used by fields in the same message.
-	// A given name may only be reserved once.
-	ReservedName     []string `protobuf:"bytes,10,rep,name=reserved_name,json=reservedName" json:"reserved_name,omitempty"`
-	XXX_unrecognized []byte   `json:"-"`
-}
-
-func (m *DescriptorProto) Reset()                    { *m = DescriptorProto{} }
-func (m *DescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*DescriptorProto) ProtoMessage()               {}
-func (*DescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
-
-func (m *DescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *DescriptorProto) GetField() []*FieldDescriptorProto {
-	if m != nil {
-		return m.Field
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetExtension() []*FieldDescriptorProto {
-	if m != nil {
-		return m.Extension
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetNestedType() []*DescriptorProto {
-	if m != nil {
-		return m.NestedType
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetEnumType() []*EnumDescriptorProto {
-	if m != nil {
-		return m.EnumType
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetExtensionRange() []*DescriptorProto_ExtensionRange {
-	if m != nil {
-		return m.ExtensionRange
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetOneofDecl() []*OneofDescriptorProto {
-	if m != nil {
-		return m.OneofDecl
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetOptions() *MessageOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetReservedRange() []*DescriptorProto_ReservedRange {
-	if m != nil {
-		return m.ReservedRange
-	}
-	return nil
-}
-
-func (m *DescriptorProto) GetReservedName() []string {
-	if m != nil {
-		return m.ReservedName
-	}
-	return nil
-}
-
-type DescriptorProto_ExtensionRange struct {
-	Start            *int32 `protobuf:"varint,1,opt,name=start" json:"start,omitempty"`
-	End              *int32 `protobuf:"varint,2,opt,name=end" json:"end,omitempty"`
-	XXX_unrecognized []byte `json:"-"`
-}
-
-func (m *DescriptorProto_ExtensionRange) Reset()         { *m = DescriptorProto_ExtensionRange{} }
-func (m *DescriptorProto_ExtensionRange) String() string { return proto.CompactTextString(m) }
-func (*DescriptorProto_ExtensionRange) ProtoMessage()    {}
-func (*DescriptorProto_ExtensionRange) Descriptor() ([]byte, []int) {
-	return fileDescriptor0, []int{2, 0}
-}
-
-func (m *DescriptorProto_ExtensionRange) GetStart() int32 {
-	if m != nil && m.Start != nil {
-		return *m.Start
-	}
-	return 0
-}
-
-func (m *DescriptorProto_ExtensionRange) GetEnd() int32 {
-	if m != nil && m.End != nil {
-		return *m.End
-	}
-	return 0
-}
-
-// Range of reserved tag numbers. Reserved tag numbers may not be used by
-// fields or extension ranges in the same message. Reserved ranges may
-// not overlap.
-type DescriptorProto_ReservedRange struct {
-	Start            *int32 `protobuf:"varint,1,opt,name=start" json:"start,omitempty"`
-	End              *int32 `protobuf:"varint,2,opt,name=end" json:"end,omitempty"`
-	XXX_unrecognized []byte `json:"-"`
-}
-
-func (m *DescriptorProto_ReservedRange) Reset()         { *m = DescriptorProto_ReservedRange{} }
-func (m *DescriptorProto_ReservedRange) String() string { return proto.CompactTextString(m) }
-func (*DescriptorProto_ReservedRange) ProtoMessage()    {}
-func (*DescriptorProto_ReservedRange) Descriptor() ([]byte, []int) {
-	return fileDescriptor0, []int{2, 1}
-}
-
-func (m *DescriptorProto_ReservedRange) GetStart() int32 {
-	if m != nil && m.Start != nil {
-		return *m.Start
-	}
-	return 0
-}
-
-func (m *DescriptorProto_ReservedRange) GetEnd() int32 {
-	if m != nil && m.End != nil {
-		return *m.End
-	}
-	return 0
-}
-
-// Describes a field within a message.
-type FieldDescriptorProto struct {
-	Name   *string                     `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Number *int32                      `protobuf:"varint,3,opt,name=number" json:"number,omitempty"`
-	Label  *FieldDescriptorProto_Label `protobuf:"varint,4,opt,name=label,enum=google.protobuf.FieldDescriptorProto_Label" json:"label,omitempty"`
-	// If type_name is set, this need not be set.  If both this and type_name
-	// are set, this must be one of TYPE_ENUM, TYPE_MESSAGE or TYPE_GROUP.
-	Type *FieldDescriptorProto_Type `protobuf:"varint,5,opt,name=type,enum=google.protobuf.FieldDescriptorProto_Type" json:"type,omitempty"`
-	// For message and enum types, this is the name of the type.  If the name
-	// starts with a '.', it is fully-qualified.  Otherwise, C++-like scoping
-	// rules are used to find the type (i.e. first the nested types within this
-	// message are searched, then within the parent, on up to the root
-	// namespace).
-	TypeName *string `protobuf:"bytes,6,opt,name=type_name,json=typeName" json:"type_name,omitempty"`
-	// For extensions, this is the name of the type being extended.  It is
-	// resolved in the same manner as type_name.
-	Extendee *string `protobuf:"bytes,2,opt,name=extendee" json:"extendee,omitempty"`
-	// For numeric types, contains the original text representation of the value.
-	// For booleans, "true" or "false".
-	// For strings, contains the default text contents (not escaped in any way).
-	// For bytes, contains the C escaped value.  All bytes >= 128 are escaped.
-	// TODO(kenton):  Base-64 encode?
-	DefaultValue *string `protobuf:"bytes,7,opt,name=default_value,json=defaultValue" json:"default_value,omitempty"`
-	// If set, gives the index of a oneof in the containing type's oneof_decl
-	// list.  This field is a member of that oneof.
-	OneofIndex *int32 `protobuf:"varint,9,opt,name=oneof_index,json=oneofIndex" json:"oneof_index,omitempty"`
-	// JSON name of this field. The value is set by protocol compiler. If the
-	// user has set a "json_name" option on this field, that option's value
-	// will be used. Otherwise, it's deduced from the field's name by converting
-	// it to camelCase.
-	JsonName         *string       `protobuf:"bytes,10,opt,name=json_name,json=jsonName" json:"json_name,omitempty"`
-	Options          *FieldOptions `protobuf:"bytes,8,opt,name=options" json:"options,omitempty"`
-	XXX_unrecognized []byte        `json:"-"`
-}
-
-func (m *FieldDescriptorProto) Reset()                    { *m = FieldDescriptorProto{} }
-func (m *FieldDescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*FieldDescriptorProto) ProtoMessage()               {}
-func (*FieldDescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
-
-func (m *FieldDescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *FieldDescriptorProto) GetNumber() int32 {
-	if m != nil && m.Number != nil {
-		return *m.Number
-	}
-	return 0
-}
-
-func (m *FieldDescriptorProto) GetLabel() FieldDescriptorProto_Label {
-	if m != nil && m.Label != nil {
-		return *m.Label
-	}
-	return FieldDescriptorProto_LABEL_OPTIONAL
-}
-
-func (m *FieldDescriptorProto) GetType() FieldDescriptorProto_Type {
-	if m != nil && m.Type != nil {
-		return *m.Type
-	}
-	return FieldDescriptorProto_TYPE_DOUBLE
-}
-
-func (m *FieldDescriptorProto) GetTypeName() string {
-	if m != nil && m.TypeName != nil {
-		return *m.TypeName
-	}
-	return ""
-}
-
-func (m *FieldDescriptorProto) GetExtendee() string {
-	if m != nil && m.Extendee != nil {
-		return *m.Extendee
-	}
-	return ""
-}
-
-func (m *FieldDescriptorProto) GetDefaultValue() string {
-	if m != nil && m.DefaultValue != nil {
-		return *m.DefaultValue
-	}
-	return ""
-}
-
-func (m *FieldDescriptorProto) GetOneofIndex() int32 {
-	if m != nil && m.OneofIndex != nil {
-		return *m.OneofIndex
-	}
-	return 0
-}
-
-func (m *FieldDescriptorProto) GetJsonName() string {
-	if m != nil && m.JsonName != nil {
-		return *m.JsonName
-	}
-	return ""
-}
-
-func (m *FieldDescriptorProto) GetOptions() *FieldOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-// Describes a oneof.
-type OneofDescriptorProto struct {
-	Name             *string       `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Options          *OneofOptions `protobuf:"bytes,2,opt,name=options" json:"options,omitempty"`
-	XXX_unrecognized []byte        `json:"-"`
-}
-
-func (m *OneofDescriptorProto) Reset()                    { *m = OneofDescriptorProto{} }
-func (m *OneofDescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*OneofDescriptorProto) ProtoMessage()               {}
-func (*OneofDescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
-
-func (m *OneofDescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *OneofDescriptorProto) GetOptions() *OneofOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-// Describes an enum type.
-type EnumDescriptorProto struct {
-	Name             *string                     `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Value            []*EnumValueDescriptorProto `protobuf:"bytes,2,rep,name=value" json:"value,omitempty"`
-	Options          *EnumOptions                `protobuf:"bytes,3,opt,name=options" json:"options,omitempty"`
-	XXX_unrecognized []byte                      `json:"-"`
-}
-
-func (m *EnumDescriptorProto) Reset()                    { *m = EnumDescriptorProto{} }
-func (m *EnumDescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*EnumDescriptorProto) ProtoMessage()               {}
-func (*EnumDescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
-
-func (m *EnumDescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *EnumDescriptorProto) GetValue() []*EnumValueDescriptorProto {
-	if m != nil {
-		return m.Value
-	}
-	return nil
-}
-
-func (m *EnumDescriptorProto) GetOptions() *EnumOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-// Describes a value within an enum.
-type EnumValueDescriptorProto struct {
-	Name             *string           `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Number           *int32            `protobuf:"varint,2,opt,name=number" json:"number,omitempty"`
-	Options          *EnumValueOptions `protobuf:"bytes,3,opt,name=options" json:"options,omitempty"`
-	XXX_unrecognized []byte            `json:"-"`
-}
-
-func (m *EnumValueDescriptorProto) Reset()                    { *m = EnumValueDescriptorProto{} }
-func (m *EnumValueDescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*EnumValueDescriptorProto) ProtoMessage()               {}
-func (*EnumValueDescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
-
-func (m *EnumValueDescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *EnumValueDescriptorProto) GetNumber() int32 {
-	if m != nil && m.Number != nil {
-		return *m.Number
-	}
-	return 0
-}
-
-func (m *EnumValueDescriptorProto) GetOptions() *EnumValueOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-// Describes a service.
-type ServiceDescriptorProto struct {
-	Name             *string                  `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Method           []*MethodDescriptorProto `protobuf:"bytes,2,rep,name=method" json:"method,omitempty"`
-	Options          *ServiceOptions          `protobuf:"bytes,3,opt,name=options" json:"options,omitempty"`
-	XXX_unrecognized []byte                   `json:"-"`
-}
-
-func (m *ServiceDescriptorProto) Reset()                    { *m = ServiceDescriptorProto{} }
-func (m *ServiceDescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*ServiceDescriptorProto) ProtoMessage()               {}
-func (*ServiceDescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
-
-func (m *ServiceDescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *ServiceDescriptorProto) GetMethod() []*MethodDescriptorProto {
-	if m != nil {
-		return m.Method
-	}
-	return nil
-}
-
-func (m *ServiceDescriptorProto) GetOptions() *ServiceOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-// Describes a method of a service.
-type MethodDescriptorProto struct {
-	Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	// Input and output type names.  These are resolved in the same way as
-	// FieldDescriptorProto.type_name, but must refer to a message type.
-	InputType  *string        `protobuf:"bytes,2,opt,name=input_type,json=inputType" json:"input_type,omitempty"`
-	OutputType *string        `protobuf:"bytes,3,opt,name=output_type,json=outputType" json:"output_type,omitempty"`
-	Options    *MethodOptions `protobuf:"bytes,4,opt,name=options" json:"options,omitempty"`
-	// Identifies if client streams multiple client messages
-	ClientStreaming *bool `protobuf:"varint,5,opt,name=client_streaming,json=clientStreaming,def=0" json:"client_streaming,omitempty"`
-	// Identifies if server streams multiple server messages
-	ServerStreaming  *bool  `protobuf:"varint,6,opt,name=server_streaming,json=serverStreaming,def=0" json:"server_streaming,omitempty"`
-	XXX_unrecognized []byte `json:"-"`
-}
-
-func (m *MethodDescriptorProto) Reset()                    { *m = MethodDescriptorProto{} }
-func (m *MethodDescriptorProto) String() string            { return proto.CompactTextString(m) }
-func (*MethodDescriptorProto) ProtoMessage()               {}
-func (*MethodDescriptorProto) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
-
-const Default_MethodDescriptorProto_ClientStreaming bool = false
-const Default_MethodDescriptorProto_ServerStreaming bool = false
-
-func (m *MethodDescriptorProto) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *MethodDescriptorProto) GetInputType() string {
-	if m != nil && m.InputType != nil {
-		return *m.InputType
-	}
-	return ""
-}
-
-func (m *MethodDescriptorProto) GetOutputType() string {
-	if m != nil && m.OutputType != nil {
-		return *m.OutputType
-	}
-	return ""
-}
-
-func (m *MethodDescriptorProto) GetOptions() *MethodOptions {
-	if m != nil {
-		return m.Options
-	}
-	return nil
-}
-
-func (m *MethodDescriptorProto) GetClientStreaming() bool {
-	if m != nil && m.ClientStreaming != nil {
-		return *m.ClientStreaming
-	}
-	return Default_MethodDescriptorProto_ClientStreaming
-}
-
-func (m *MethodDescriptorProto) GetServerStreaming() bool {
-	if m != nil && m.ServerStreaming != nil {
-		return *m.ServerStreaming
-	}
-	return Default_MethodDescriptorProto_ServerStreaming
-}
-
-type FileOptions struct {
-	// Sets the Java package where classes generated from this .proto will be
-	// placed.  By default, the proto package is used, but this is often
-	// inappropriate because proto packages do not normally start with backwards
-	// domain names.
-	JavaPackage *string `protobuf:"bytes,1,opt,name=java_package,json=javaPackage" json:"java_package,omitempty"`
-	// If set, all the classes from the .proto file are wrapped in a single
-	// outer class with the given name.  This applies to both Proto1
-	// (equivalent to the old "--one_java_file" option) and Proto2 (where
-	// a .proto always translates to a single class, but you may want to
-	// explicitly choose the class name).
-	JavaOuterClassname *string `protobuf:"bytes,8,opt,name=java_outer_classname,json=javaOuterClassname" json:"java_outer_classname,omitempty"`
-	// If set true, then the Java code generator will generate a separate .java
-	// file for each top-level message, enum, and service defined in the .proto
-	// file.  Thus, these types will *not* be nested inside the outer class
-	// named by java_outer_classname.  However, the outer class will still be
-	// generated to contain the file's getDescriptor() method as well as any
-	// top-level extensions defined in the file.
-	JavaMultipleFiles *bool `protobuf:"varint,10,opt,name=java_multiple_files,json=javaMultipleFiles,def=0" json:"java_multiple_files,omitempty"`
-	// This option does nothing.
-	JavaGenerateEqualsAndHash *bool `protobuf:"varint,20,opt,name=java_generate_equals_and_hash,json=javaGenerateEqualsAndHash" json:"java_generate_equals_and_hash,omitempty"`
-	// If set true, then the Java2 code generator will generate code that
-	// throws an exception whenever an attempt is made to assign a non-UTF-8
-	// byte sequence to a string field.
-	// Message reflection will do the same.
-	// However, an extension field still accepts non-UTF-8 byte sequences.
-	// This option has no effect on when used with the lite runtime.
-	JavaStringCheckUtf8 *bool                     `protobuf:"varint,27,opt,name=java_string_check_utf8,json=javaStringCheckUtf8,def=0" json:"java_string_check_utf8,omitempty"`
-	OptimizeFor         *FileOptions_OptimizeMode `protobuf:"varint,9,opt,name=optimize_for,json=optimizeFor,enum=google.protobuf.FileOptions_OptimizeMode,def=1" json:"optimize_for,omitempty"`
-	// Sets the Go package where structs generated from this .proto will be
-	// placed. If omitted, the Go package will be derived from the following:
-	//   - The basename of the package import path, if provided.
-	//   - Otherwise, the package statement in the .proto file, if present.
-	//   - Otherwise, the basename of the .proto file, without extension.
-	GoPackage *string `protobuf:"bytes,11,opt,name=go_package,json=goPackage" json:"go_package,omitempty"`
-	// Should generic services be generated in each language?  "Generic" services
-	// are not specific to any particular RPC system.  They are generated by the
-	// main code generators in each language (without additional plugins).
-	// Generic services were the only kind of service generation supported by
-	// early versions of google.protobuf.
-	//
-	// Generic services are now considered deprecated in favor of using plugins
-	// that generate code specific to your particular RPC system.  Therefore,
-	// these default to false.  Old code which depends on generic services should
-	// explicitly set them to true.
-	CcGenericServices   *bool `protobuf:"varint,16,opt,name=cc_generic_services,json=ccGenericServices,def=0" json:"cc_generic_services,omitempty"`
-	JavaGenericServices *bool `protobuf:"varint,17,opt,name=java_generic_services,json=javaGenericServices,def=0" json:"java_generic_services,omitempty"`
-	PyGenericServices   *bool `protobuf:"varint,18,opt,name=py_generic_services,json=pyGenericServices,def=0" json:"py_generic_services,omitempty"`
-	// Is this file deprecated?
-	// Depending on the target platform, this can emit Deprecated annotations
-	// for everything in the file, or it will be completely ignored; in the very
-	// least, this is a formalization for deprecating files.
-	Deprecated *bool `protobuf:"varint,23,opt,name=deprecated,def=0" json:"deprecated,omitempty"`
-	// Enables the use of arenas for the proto messages in this file. This applies
-	// only to generated classes for C++.
-	CcEnableArenas *bool `protobuf:"varint,31,opt,name=cc_enable_arenas,json=ccEnableArenas,def=0" json:"cc_enable_arenas,omitempty"`
-	// Sets the objective c class prefix which is prepended to all objective c
-	// generated classes from this .proto. There is no default.
-	ObjcClassPrefix *string `protobuf:"bytes,36,opt,name=objc_class_prefix,json=objcClassPrefix" json:"objc_class_prefix,omitempty"`
-	// Namespace for generated classes; defaults to the package.
-	CsharpNamespace *string `protobuf:"bytes,37,opt,name=csharp_namespace,json=csharpNamespace" json:"csharp_namespace,omitempty"`
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
-
-func (m *FileOptions) Reset()                    { *m = FileOptions{} }
-func (m *FileOptions) String() string            { return proto.CompactTextString(m) }
-func (*FileOptions) ProtoMessage()               {}
-func (*FileOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{9} }
-
-var extRange_FileOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
-
-func (*FileOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_FileOptions
-}
-
-const Default_FileOptions_JavaMultipleFiles bool = false
-const Default_FileOptions_JavaStringCheckUtf8 bool = false
-const Default_FileOptions_OptimizeFor FileOptions_OptimizeMode = FileOptions_SPEED
-const Default_FileOptions_CcGenericServices bool = false
-const Default_FileOptions_JavaGenericServices bool = false
-const Default_FileOptions_PyGenericServices bool = false
-const Default_FileOptions_Deprecated bool = false
-const Default_FileOptions_CcEnableArenas bool = false
-
-func (m *FileOptions) GetJavaPackage() string {
-	if m != nil && m.JavaPackage != nil {
-		return *m.JavaPackage
-	}
-	return ""
-}
-
-func (m *FileOptions) GetJavaOuterClassname() string {
-	if m != nil && m.JavaOuterClassname != nil {
-		return *m.JavaOuterClassname
-	}
-	return ""
-}
-
-func (m *FileOptions) GetJavaMultipleFiles() bool {
-	if m != nil && m.JavaMultipleFiles != nil {
-		return *m.JavaMultipleFiles
-	}
-	return Default_FileOptions_JavaMultipleFiles
-}
-
-func (m *FileOptions) GetJavaGenerateEqualsAndHash() bool {
-	if m != nil && m.JavaGenerateEqualsAndHash != nil {
-		return *m.JavaGenerateEqualsAndHash
-	}
-	return false
-}
-
-func (m *FileOptions) GetJavaStringCheckUtf8() bool {
-	if m != nil && m.JavaStringCheckUtf8 != nil {
-		return *m.JavaStringCheckUtf8
-	}
-	return Default_FileOptions_JavaStringCheckUtf8
-}
-
-func (m *FileOptions) GetOptimizeFor() FileOptions_OptimizeMode {
-	if m != nil && m.OptimizeFor != nil {
-		return *m.OptimizeFor
-	}
-	return Default_FileOptions_OptimizeFor
-}
-
-func (m *FileOptions) GetGoPackage() string {
-	if m != nil && m.GoPackage != nil {
-		return *m.GoPackage
-	}
-	return ""
-}
-
-func (m *FileOptions) GetCcGenericServices() bool {
-	if m != nil && m.CcGenericServices != nil {
-		return *m.CcGenericServices
-	}
-	return Default_FileOptions_CcGenericServices
-}
-
-func (m *FileOptions) GetJavaGenericServices() bool {
-	if m != nil && m.JavaGenericServices != nil {
-		return *m.JavaGenericServices
-	}
-	return Default_FileOptions_JavaGenericServices
-}
-
-func (m *FileOptions) GetPyGenericServices() bool {
-	if m != nil && m.PyGenericServices != nil {
-		return *m.PyGenericServices
-	}
-	return Default_FileOptions_PyGenericServices
-}
-
-func (m *FileOptions) GetDeprecated() bool {
-	if m != nil && m.Deprecated != nil {
-		return *m.Deprecated
-	}
-	return Default_FileOptions_Deprecated
-}
-
-func (m *FileOptions) GetCcEnableArenas() bool {
-	if m != nil && m.CcEnableArenas != nil {
-		return *m.CcEnableArenas
-	}
-	return Default_FileOptions_CcEnableArenas
-}
-
-func (m *FileOptions) GetObjcClassPrefix() string {
-	if m != nil && m.ObjcClassPrefix != nil {
-		return *m.ObjcClassPrefix
-	}
-	return ""
-}
-
-func (m *FileOptions) GetCsharpNamespace() string {
-	if m != nil && m.CsharpNamespace != nil {
-		return *m.CsharpNamespace
-	}
-	return ""
-}
-
-func (m *FileOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
-
-type MessageOptions struct {
-	// Set true to use the old proto1 MessageSet wire format for extensions.
-	// This is provided for backwards-compatibility with the MessageSet wire
-	// format.  You should not use this for any other reason:  It's less
-	// efficient, has fewer features, and is more complicated.
-	//
-	// The message must be defined exactly as follows:
-	//   message Foo {
-	//     option message_set_wire_format = true;
-	//     extensions 4 to max;
-	//   }
-	// Note that the message cannot have any defined fields; MessageSets only
-	// have extensions.
-	//
-	// All extensions of your type must be singular messages; e.g. they cannot
-	// be int32s, enums, or repeated messages.
-	//
-	// Because this is an option, the above two restrictions are not enforced by
-	// the protocol compiler.
-	MessageSetWireFormat *bool `protobuf:"varint,1,opt,name=message_set_wire_format,json=messageSetWireFormat,def=0" json:"message_set_wire_format,omitempty"`
-	// Disables the generation of the standard "descriptor()" accessor, which can
-	// conflict with a field of the same name.  This is meant to make migration
-	// from proto1 easier; new code should avoid fields named "descriptor".
-	NoStandardDescriptorAccessor *bool `protobuf:"varint,2,opt,name=no_standard_descriptor_accessor,json=noStandardDescriptorAccessor,def=0" json:"no_standard_descriptor_accessor,omitempty"`
-	// Is this message deprecated?
-	// Depending on the target platform, this can emit Deprecated annotations
-	// for the message, or it will be completely ignored; in the very least,
-	// this is a formalization for deprecating messages.
-	Deprecated *bool `protobuf:"varint,3,opt,name=deprecated,def=0" json:"deprecated,omitempty"`
-	// Whether the message is an automatically generated map entry type for the
-	// maps field.
-	//
-	// For maps fields:
-	//     map<KeyType, ValueType> map_field = 1;
-	// The parsed descriptor looks like:
-	//     message MapFieldEntry {
-	//         option map_entry = true;
-	//         optional KeyType key = 1;
-	//         optional ValueType value = 2;
-	//     }
-	//     repeated MapFieldEntry map_field = 1;
-	//
-	// Implementations may choose not to generate the map_entry=true message, but
-	// use a native map in the target language to hold the keys and values.
-	// The reflection APIs in such implementions still need to work as
-	// if the field is a repeated message field.
-	//
-	// NOTE: Do not set the option in .proto files. Always use the maps syntax
-	// instead. The option should only be implicitly set by the proto compiler
-	// parser.
-	MapEntry *bool `protobuf:"varint,7,opt,name=map_entry,json=mapEntry" json:"map_entry,omitempty"`
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
-
-func (m *MessageOptions) Reset()                    { *m = MessageOptions{} }
-func (m *MessageOptions) String() string            { return proto.CompactTextString(m) }
-func (*MessageOptions) ProtoMessage()               {}
-func (*MessageOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{10} }
-
-var extRange_MessageOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
-
-func (*MessageOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_MessageOptions
-}
-
-const Default_MessageOptions_MessageSetWireFormat bool = false
-const Default_MessageOptions_NoStandardDescriptorAccessor bool = false
-const Default_MessageOptions_Deprecated bool = false
-
-func (m *MessageOptions) GetMessageSetWireFormat() bool {
-	if m != nil && m.MessageSetWireFormat != nil {
-		return *m.MessageSetWireFormat
-	}
-	return Default_MessageOptions_MessageSetWireFormat
-}
-
-func (m *MessageOptions) GetNoStandardDescriptorAccessor() bool {
-	if m != nil && m.NoStandardDescriptorAccessor != nil {
-		return *m.NoStandardDescriptorAccessor
-	}
-	return Default_MessageOptions_NoStandardDescriptorAccessor
-}
-
-func (m *MessageOptions) GetDeprecated() bool {
-	if m != nil && m.Deprecated != nil {
-		return *m.Deprecated
-	}
-	return Default_MessageOptions_Deprecated
-}
-
-func (m *MessageOptions) GetMapEntry() bool {
-	if m != nil && m.MapEntry != nil {
-		return *m.MapEntry
-	}
-	return false
-}
-
-func (m *MessageOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
-
-type FieldOptions struct {
-	// The ctype option instructs the C++ code generator to use a different
-	// representation of the field than it normally would.  See the specific
-	// options below.  This option is not yet implemented in the open source
-	// release -- sorry, we'll try to include it in a future version!
-	Ctype *FieldOptions_CType `protobuf:"varint,1,opt,name=ctype,enum=google.protobuf.FieldOptions_CType,def=0" json:"ctype,omitempty"`
-	// The packed option can be enabled for repeated primitive fields to enable
-	// a more efficient representation on the wire. Rather than repeatedly
-	// writing the tag and type for each element, the entire array is encoded as
-	// a single length-delimited blob. In proto3, only explicit setting it to
-	// false will avoid using packed encoding.
-	Packed *bool `protobuf:"varint,2,opt,name=packed" json:"packed,omitempty"`
-	// The jstype option determines the JavaScript type used for values of the
-	// field.  The option is permitted only for 64 bit integral and fixed types
-	// (int64, uint64, sint64, fixed64, sfixed64).  By default these types are
-	// represented as JavaScript strings.  This avoids loss of precision that can
-	// happen when a large value is converted to a floating point JavaScript
-	// numbers.  Specifying JS_NUMBER for the jstype causes the generated
-	// JavaScript code to use the JavaScript "number" type instead of strings.
-	// This option is an enum to permit additional types to be added,
-	// e.g. goog.math.Integer.
-	Jstype *FieldOptions_JSType `protobuf:"varint,6,opt,name=jstype,enum=google.protobuf.FieldOptions_JSType,def=0" json:"jstype,omitempty"`
-	// Should this field be parsed lazily?  Lazy applies only to message-type
-	// fields.  It means that when the outer message is initially parsed, the
-	// inner message's contents will not be parsed but instead stored in encoded
-	// form.  The inner message will actually be parsed when it is first accessed.
-	//
-	// This is only a hint.  Implementations are free to choose whether to use
-	// eager or lazy parsing regardless of the value of this option.  However,
-	// setting this option true suggests that the protocol author believes that
-	// using lazy parsing on this field is worth the additional bookkeeping
-	// overhead typically needed to implement it.
-	//
-	// This option does not affect the public interface of any generated code;
-	// all method signatures remain the same.  Furthermore, thread-safety of the
-	// interface is not affected by this option; const methods remain safe to
-	// call from multiple threads concurrently, while non-const methods continue
-	// to require exclusive access.
-	//
-	//
-	// Note that implementations may choose not to check required fields within
-	// a lazy sub-message.  That is, calling IsInitialized() on the outer message
-	// may return true even if the inner message has missing required fields.
-	// This is necessary because otherwise the inner message would have to be
-	// parsed in order to perform the check, defeating the purpose of lazy
-	// parsing.  An implementation which chooses not to check required fields
-	// must be consistent about it.  That is, for any particular sub-message, the
-	// implementation must either *always* check its required fields, or *never*
-	// check its required fields, regardless of whether or not the message has
-	// been parsed.
-	Lazy *bool `protobuf:"varint,5,opt,name=lazy,def=0" json:"lazy,omitempty"`
-	// Is this field deprecated?
-	// Depending on the target platform, this can emit Deprecated annotations
-	// for accessors, or it will be completely ignored; in the very least, this
-	// is a formalization for deprecating fields.
-	Deprecated *bool `protobuf:"varint,3,opt,name=deprecated,def=0" json:"deprecated,omitempty"`
-	// For Google-internal migration only. Do not use.
-	Weak *bool `protobuf:"varint,10,opt,name=weak,def=0" json:"weak,omitempty"`
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
-
-func (m *FieldOptions) Reset()                    { *m = FieldOptions{} }
-func (m *FieldOptions) String() string            { return proto.CompactTextString(m) }
-func (*FieldOptions) ProtoMessage()               {}
-func (*FieldOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{11} }
-
-var extRange_FieldOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
-
-func (*FieldOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_FieldOptions
-}
-
-const Default_FieldOptions_Ctype FieldOptions_CType = FieldOptions_STRING
-const Default_FieldOptions_Jstype FieldOptions_JSType = FieldOptions_JS_NORMAL
-const Default_FieldOptions_Lazy bool = false
-const Default_FieldOptions_Deprecated bool = false
-const Default_FieldOptions_Weak bool = false
-
-func (m *FieldOptions) GetCtype() FieldOptions_CType {
-	if m != nil && m.Ctype != nil {
-		return *m.Ctype
-	}
-	return Default_FieldOptions_Ctype
-}
-
-func (m *FieldOptions) GetPacked() bool {
-	if m != nil && m.Packed != nil {
-		return *m.Packed
-	}
-	return false
-}
-
-func (m *FieldOptions) GetJstype() FieldOptions_JSType {
-	if m != nil && m.Jstype != nil {
-		return *m.Jstype
-	}
-	return Default_FieldOptions_Jstype
-}
-
-func (m *FieldOptions) GetLazy() bool {
-	if m != nil && m.Lazy != nil {
-		return *m.Lazy
-	}
-	return Default_FieldOptions_Lazy
-}
-
-func (m *FieldOptions) GetDeprecated() bool {
-	if m != nil && m.Deprecated != nil {
-		return *m.Deprecated
-	}
-	return Default_FieldOptions_Deprecated
-}
-
-func (m *FieldOptions) GetWeak() bool {
-	if m != nil && m.Weak != nil {
-		return *m.Weak
-	}
-	return Default_FieldOptions_Weak
-}
-
-func (m *FieldOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
-
-type OneofOptions struct {
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
-
-func (m *OneofOptions) Reset()                    { *m = OneofOptions{} }
-func (m *OneofOptions) String() string            { return proto.CompactTextString(m) }
-func (*OneofOptions) ProtoMessage()               {}
-func (*OneofOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{12} }
-
-var extRange_OneofOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
-
-func (*OneofOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_OneofOptions
-}
-
-func (m *OneofOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
-
-type EnumOptions struct {
-	// Set this option to true to allow mapping different tag names to the same
-	// value.
-	AllowAlias *bool `protobuf:"varint,2,opt,name=allow_alias,json=allowAlias" json:"allow_alias,omitempty"`
-	// Is this enum deprecated?
-	// Depending on the target platform, this can emit Deprecated annotations
-	// for the enum, or it will be completely ignored; in the very least, this
-	// is a formalization for deprecating enums.
-	Deprecated *bool `protobuf:"varint,3,opt,name=deprecated,def=0" json:"deprecated,omitempty"`
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
-
-func (m *EnumOptions) Reset()                    { *m = EnumOptions{} }
-func (m *EnumOptions) String() string            { return proto.CompactTextString(m) }
-func (*EnumOptions) ProtoMessage()               {}
-func (*EnumOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{13} }
-
-var extRange_EnumOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
-
-func (*EnumOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_EnumOptions
-}
+// Symbols defined in public import of google/protobuf/descriptor.proto.
 
-const Default_EnumOptions_Deprecated bool = false
+type Edition = descriptorpb.Edition
 
-func (m *EnumOptions) GetAllowAlias() bool {
-	if m != nil && m.AllowAlias != nil {
-		return *m.AllowAlias
-	}
-	return false
-}
+const Edition_EDITION_UNKNOWN = descriptorpb.Edition_EDITION_UNKNOWN
+const Edition_EDITION_PROTO2 = descriptorpb.Edition_EDITION_PROTO2
+const Edition_EDITION_PROTO3 = descriptorpb.Edition_EDITION_PROTO3
+const Edition_EDITION_2023 = descriptorpb.Edition_EDITION_2023
+const Edition_EDITION_2024 = descriptorpb.Edition_EDITION_2024
+const Edition_EDITION_1_TEST_ONLY = descriptorpb.Edition_EDITION_1_TEST_ONLY
+const Edition_EDITION_2_TEST_ONLY = descriptorpb.Edition_EDITION_2_TEST_ONLY
+const Edition_EDITION_99997_TEST_ONLY = descriptorpb.Edition_EDITION_99997_TEST_ONLY
+const Edition_EDITION_99998_TEST_ONLY = descriptorpb.Edition_EDITION_99998_TEST_ONLY
+const Edition_EDITION_99999_TEST_ONLY = descriptorpb.Edition_EDITION_99999_TEST_ONLY
+const Edition_EDITION_MAX = descriptorpb.Edition_EDITION_MAX
 
-func (m *EnumOptions) GetDeprecated() bool {
-	if m != nil && m.Deprecated != nil {
-		return *m.Deprecated
-	}
-	return Default_EnumOptions_Deprecated
-}
+var Edition_name = descriptorpb.Edition_name
+var Edition_value = descriptorpb.Edition_value
 
-func (m *EnumOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
+type ExtensionRangeOptions_VerificationState = descriptorpb.ExtensionRangeOptions_VerificationState
 
-type EnumValueOptions struct {
-	// Is this enum value deprecated?
-	// Depending on the target platform, this can emit Deprecated annotations
-	// for the enum value, or it will be completely ignored; in the very least,
-	// this is a formalization for deprecating enum values.
-	Deprecated *bool `protobuf:"varint,1,opt,name=deprecated,def=0" json:"deprecated,omitempty"`
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
+const ExtensionRangeOptions_DECLARATION = descriptorpb.ExtensionRangeOptions_DECLARATION
+const ExtensionRangeOptions_UNVERIFIED = descriptorpb.ExtensionRangeOptions_UNVERIFIED
 
-func (m *EnumValueOptions) Reset()                    { *m = EnumValueOptions{} }
-func (m *EnumValueOptions) String() string            { return proto.CompactTextString(m) }
-func (*EnumValueOptions) ProtoMessage()               {}
-func (*EnumValueOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{14} }
+var ExtensionRangeOptions_VerificationState_name = descriptorpb.ExtensionRangeOptions_VerificationState_name
+var ExtensionRangeOptions_VerificationState_value = descriptorpb.ExtensionRangeOptions_VerificationState_value
 
-var extRange_EnumValueOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
+type FieldDescriptorProto_Type = descriptorpb.FieldDescriptorProto_Type
 
-func (*EnumValueOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_EnumValueOptions
-}
+const FieldDescriptorProto_TYPE_DOUBLE = descriptorpb.FieldDescriptorProto_TYPE_DOUBLE
+const FieldDescriptorProto_TYPE_FLOAT = descriptorpb.FieldDescriptorProto_TYPE_FLOAT
+const FieldDescriptorProto_TYPE_INT64 = descriptorpb.FieldDescriptorProto_TYPE_INT64
+const FieldDescriptorProto_TYPE_UINT64 = descriptorpb.FieldDescriptorProto_TYPE_UINT64
+const FieldDescriptorProto_TYPE_INT32 = descriptorpb.FieldDescriptorProto_TYPE_INT32
+const FieldDescriptorProto_TYPE_FIXED64 = descriptorpb.FieldDescriptorProto_TYPE_FIXED64
+const FieldDescriptorProto_TYPE_FIXED32 = descriptorpb.FieldDescriptorProto_TYPE_FIXED32
+const FieldDescriptorProto_TYPE_BOOL = descriptorpb.FieldDescriptorProto_TYPE_BOOL
+const FieldDescriptorProto_TYPE_STRING = descriptorpb.FieldDescriptorProto_TYPE_STRING
+const FieldDescriptorProto_TYPE_GROUP = descriptorpb.FieldDescriptorProto_TYPE_GROUP
+const FieldDescriptorProto_TYPE_MESSAGE = descriptorpb.FieldDescriptorProto_TYPE_MESSAGE
+const FieldDescriptorProto_TYPE_BYTES = descriptorpb.FieldDescriptorProto_TYPE_BYTES
+const FieldDescriptorProto_TYPE_UINT32 = descriptorpb.FieldDescriptorProto_TYPE_UINT32
+const FieldDescriptorProto_TYPE_ENUM = descriptorpb.FieldDescriptorProto_TYPE_ENUM
+const FieldDescriptorProto_TYPE_SFIXED32 = descriptorpb.FieldDescriptorProto_TYPE_SFIXED32
+const FieldDescriptorProto_TYPE_SFIXED64 = descriptorpb.FieldDescriptorProto_TYPE_SFIXED64
+const FieldDescriptorProto_TYPE_SINT32 = descriptorpb.FieldDescriptorProto_TYPE_SINT32
+const FieldDescriptorProto_TYPE_SINT64 = descriptorpb.FieldDescriptorProto_TYPE_SINT64
 
-const Default_EnumValueOptions_Deprecated bool = false
+var FieldDescriptorProto_Type_name = descriptorpb.FieldDescriptorProto_Type_name
+var FieldDescriptorProto_Type_value = descriptorpb.FieldDescriptorProto_Type_value
 
-func (m *EnumValueOptions) GetDeprecated() bool {
-	if m != nil && m.Deprecated != nil {
-		return *m.Deprecated
-	}
-	return Default_EnumValueOptions_Deprecated
-}
+type FieldDescriptorProto_Label = descriptorpb.FieldDescriptorProto_Label
 
-func (m *EnumValueOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
+const FieldDescriptorProto_LABEL_OPTIONAL = descriptorpb.FieldDescriptorProto_LABEL_OPTIONAL
+const FieldDescriptorProto_LABEL_REPEATED = descriptorpb.FieldDescriptorProto_LABEL_REPEATED
+const FieldDescriptorProto_LABEL_REQUIRED = descriptorpb.FieldDescriptorProto_LABEL_REQUIRED
 
-type ServiceOptions struct {
-	// Is this service deprecated?
-	// Depending on the target platform, this can emit Deprecated annotations
-	// for the service, or it will be completely ignored; in the very least,
-	// this is a formalization for deprecating services.
-	Deprecated *bool `protobuf:"varint,33,opt,name=deprecated,def=0" json:"deprecated,omitempty"`
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
+var FieldDescriptorProto_Label_name = descriptorpb.FieldDescriptorProto_Label_name
+var FieldDescriptorProto_Label_value = descriptorpb.FieldDescriptorProto_Label_value
 
-func (m *ServiceOptions) Reset()                    { *m = ServiceOptions{} }
-func (m *ServiceOptions) String() string            { return proto.CompactTextString(m) }
-func (*ServiceOptions) ProtoMessage()               {}
-func (*ServiceOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{15} }
+type FileOptions_OptimizeMode = descriptorpb.FileOptions_OptimizeMode
 
-var extRange_ServiceOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
+const FileOptions_SPEED = descriptorpb.FileOptions_SPEED
+const FileOptions_CODE_SIZE = descriptorpb.FileOptions_CODE_SIZE
+const FileOptions_LITE_RUNTIME = descriptorpb.FileOptions_LITE_RUNTIME
 
-func (*ServiceOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_ServiceOptions
-}
+var FileOptions_OptimizeMode_name = descriptorpb.FileOptions_OptimizeMode_name
+var FileOptions_OptimizeMode_value = descriptorpb.FileOptions_OptimizeMode_value
 
-const Default_ServiceOptions_Deprecated bool = false
+type FieldOptions_CType = descriptorpb.FieldOptions_CType
 
-func (m *ServiceOptions) GetDeprecated() bool {
-	if m != nil && m.Deprecated != nil {
-		return *m.Deprecated
-	}
-	return Default_ServiceOptions_Deprecated
-}
+const FieldOptions_STRING = descriptorpb.FieldOptions_STRING
+const FieldOptions_CORD = descriptorpb.FieldOptions_CORD
+const FieldOptions_STRING_PIECE = descriptorpb.FieldOptions_STRING_PIECE
 
-func (m *ServiceOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
+var FieldOptions_CType_name = descriptorpb.FieldOptions_CType_name
+var FieldOptions_CType_value = descriptorpb.FieldOptions_CType_value
 
-type MethodOptions struct {
-	// Is this method deprecated?
-	// Depending on the target platform, this can emit Deprecated annotations
-	// for the method, or it will be completely ignored; in the very least,
-	// this is a formalization for deprecating methods.
-	Deprecated *bool `protobuf:"varint,33,opt,name=deprecated,def=0" json:"deprecated,omitempty"`
-	// The parser stores options it doesn't recognize here. See above.
-	UninterpretedOption          []*UninterpretedOption `protobuf:"bytes,999,rep,name=uninterpreted_option,json=uninterpretedOption" json:"uninterpreted_option,omitempty"`
-	proto.XXX_InternalExtensions `json:"-"`
-	XXX_unrecognized             []byte `json:"-"`
-}
+type FieldOptions_JSType = descriptorpb.FieldOptions_JSType
 
-func (m *MethodOptions) Reset()                    { *m = MethodOptions{} }
-func (m *MethodOptions) String() string            { return proto.CompactTextString(m) }
-func (*MethodOptions) ProtoMessage()               {}
-func (*MethodOptions) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{16} }
+const FieldOptions_JS_NORMAL = descriptorpb.FieldOptions_JS_NORMAL
+const FieldOptions_JS_STRING = descriptorpb.FieldOptions_JS_STRING
+const FieldOptions_JS_NUMBER = descriptorpb.FieldOptions_JS_NUMBER
 
-var extRange_MethodOptions = []proto.ExtensionRange{
-	{1000, 536870911},
-}
+var FieldOptions_JSType_name = descriptorpb.FieldOptions_JSType_name
+var FieldOptions_JSType_value = descriptorpb.FieldOptions_JSType_value
 
-func (*MethodOptions) ExtensionRangeArray() []proto.ExtensionRange {
-	return extRange_MethodOptions
-}
+type FieldOptions_OptionRetention = descriptorpb.FieldOptions_OptionRetention
 
-const Default_MethodOptions_Deprecated bool = false
+const FieldOptions_RETENTION_UNKNOWN = descriptorpb.FieldOptions_RETENTION_UNKNOWN
+const FieldOptions_RETENTION_RUNTIME = descriptorpb.FieldOptions_RETENTION_RUNTIME
+const FieldOptions_RETENTION_SOURCE = descriptorpb.FieldOptions_RETENTION_SOURCE
 
-func (m *MethodOptions) GetDeprecated() bool {
-	if m != nil && m.Deprecated != nil {
-		return *m.Deprecated
-	}
-	return Default_MethodOptions_Deprecated
-}
+var FieldOptions_OptionRetention_name = descriptorpb.FieldOptions_OptionRetention_name
+var FieldOptions_OptionRetention_value = descriptorpb.FieldOptions_OptionRetention_value
 
-func (m *MethodOptions) GetUninterpretedOption() []*UninterpretedOption {
-	if m != nil {
-		return m.UninterpretedOption
-	}
-	return nil
-}
+type FieldOptions_OptionTargetType = descriptorpb.FieldOptions_OptionTargetType
 
-// A message representing a option the parser does not recognize. This only
-// appears in options protos created by the compiler::Parser class.
-// DescriptorPool resolves these when building Descriptor objects. Therefore,
-// options protos in descriptor objects (e.g. returned by Descriptor::options(),
-// or produced by Descriptor::CopyTo()) will never have UninterpretedOptions
-// in them.
-type UninterpretedOption struct {
-	Name []*UninterpretedOption_NamePart `protobuf:"bytes,2,rep,name=name" json:"name,omitempty"`
-	// The value of the uninterpreted option, in whatever type the tokenizer
-	// identified it as during parsing. Exactly one of these should be set.
-	IdentifierValue  *string  `protobuf:"bytes,3,opt,name=identifier_value,json=identifierValue" json:"identifier_value,omitempty"`
-	PositiveIntValue *uint64  `protobuf:"varint,4,opt,name=positive_int_value,json=positiveIntValue" json:"positive_int_value,omitempty"`
-	NegativeIntValue *int64   `protobuf:"varint,5,opt,name=negative_int_value,json=negativeIntValue" json:"negative_int_value,omitempty"`
-	DoubleValue      *float64 `protobuf:"fixed64,6,opt,name=double_value,json=doubleValue" json:"double_value,omitempty"`
-	StringValue      []byte   `protobuf:"bytes,7,opt,name=string_value,json=stringValue" json:"string_value,omitempty"`
-	AggregateValue   *string  `protobuf:"bytes,8,opt,name=aggregate_value,json=aggregateValue" json:"aggregate_value,omitempty"`
-	XXX_unrecognized []byte   `json:"-"`
-}
+const FieldOptions_TARGET_TYPE_UNKNOWN = descriptorpb.FieldOptions_TARGET_TYPE_UNKNOWN
+const FieldOptions_TARGET_TYPE_FILE = descriptorpb.FieldOptions_TARGET_TYPE_FILE
+const FieldOptions_TARGET_TYPE_EXTENSION_RANGE = descriptorpb.FieldOptions_TARGET_TYPE_EXTENSION_RANGE
+const FieldOptions_TARGET_TYPE_MESSAGE = descriptorpb.FieldOptions_TARGET_TYPE_MESSAGE
+const FieldOptions_TARGET_TYPE_FIELD = descriptorpb.FieldOptions_TARGET_TYPE_FIELD
+const FieldOptions_TARGET_TYPE_ONEOF = descriptorpb.FieldOptions_TARGET_TYPE_ONEOF
+const FieldOptions_TARGET_TYPE_ENUM = descriptorpb.FieldOptions_TARGET_TYPE_ENUM
+const FieldOptions_TARGET_TYPE_ENUM_ENTRY = descriptorpb.FieldOptions_TARGET_TYPE_ENUM_ENTRY
+const FieldOptions_TARGET_TYPE_SERVICE = descriptorpb.FieldOptions_TARGET_TYPE_SERVICE
+const FieldOptions_TARGET_TYPE_METHOD = descriptorpb.FieldOptions_TARGET_TYPE_METHOD
 
-func (m *UninterpretedOption) Reset()                    { *m = UninterpretedOption{} }
-func (m *UninterpretedOption) String() string            { return proto.CompactTextString(m) }
-func (*UninterpretedOption) ProtoMessage()               {}
-func (*UninterpretedOption) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{17} }
+var FieldOptions_OptionTargetType_name = descriptorpb.FieldOptions_OptionTargetType_name
+var FieldOptions_OptionTargetType_value = descriptorpb.FieldOptions_OptionTargetType_value
 
-func (m *UninterpretedOption) GetName() []*UninterpretedOption_NamePart {
-	if m != nil {
-		return m.Name
-	}
-	return nil
-}
+type MethodOptions_IdempotencyLevel = descriptorpb.MethodOptions_IdempotencyLevel
 
-func (m *UninterpretedOption) GetIdentifierValue() string {
-	if m != nil && m.IdentifierValue != nil {
-		return *m.IdentifierValue
-	}
-	return ""
-}
+const MethodOptions_IDEMPOTENCY_UNKNOWN = descriptorpb.MethodOptions_IDEMPOTENCY_UNKNOWN
+const MethodOptions_NO_SIDE_EFFECTS = descriptorpb.MethodOptions_NO_SIDE_EFFECTS
+const MethodOptions_IDEMPOTENT = descriptorpb.MethodOptions_IDEMPOTENT
 
-func (m *UninterpretedOption) GetPositiveIntValue() uint64 {
-	if m != nil && m.PositiveIntValue != nil {
-		return *m.PositiveIntValue
-	}
-	return 0
-}
+var MethodOptions_IdempotencyLevel_name = descriptorpb.MethodOptions_IdempotencyLevel_name
+var MethodOptions_IdempotencyLevel_value = descriptorpb.MethodOptions_IdempotencyLevel_value
 
-func (m *UninterpretedOption) GetNegativeIntValue() int64 {
-	if m != nil && m.NegativeIntValue != nil {
-		return *m.NegativeIntValue
-	}
-	return 0
-}
+type FeatureSet_FieldPresence = descriptorpb.FeatureSet_FieldPresence
 
-func (m *UninterpretedOption) GetDoubleValue() float64 {
-	if m != nil && m.DoubleValue != nil {
-		return *m.DoubleValue
-	}
-	return 0
-}
+const FeatureSet_FIELD_PRESENCE_UNKNOWN = descriptorpb.FeatureSet_FIELD_PRESENCE_UNKNOWN
+const FeatureSet_EXPLICIT = descriptorpb.FeatureSet_EXPLICIT
+const FeatureSet_IMPLICIT = descriptorpb.FeatureSet_IMPLICIT
+const FeatureSet_LEGACY_REQUIRED = descriptorpb.FeatureSet_LEGACY_REQUIRED
 
-func (m *UninterpretedOption) GetStringValue() []byte {
-	if m != nil {
-		return m.StringValue
-	}
-	return nil
-}
+var FeatureSet_FieldPresence_name = descriptorpb.FeatureSet_FieldPresence_name
+var FeatureSet_FieldPresence_value = descriptorpb.FeatureSet_FieldPresence_value
 
-func (m *UninterpretedOption) GetAggregateValue() string {
-	if m != nil && m.AggregateValue != nil {
-		return *m.AggregateValue
-	}
-	return ""
-}
+type FeatureSet_EnumType = descriptorpb.FeatureSet_EnumType
 
-// The name of the uninterpreted option.  Each string represents a segment in
-// a dot-separated name.  is_extension is true iff a segment represents an
-// extension (denoted with parentheses in options specs in .proto files).
-// E.g.,{ ["foo", false], ["bar.baz", true], ["qux", false] } represents
-// "foo.(bar.baz).qux".
-type UninterpretedOption_NamePart struct {
-	NamePart         *string `protobuf:"bytes,1,req,name=name_part,json=namePart" json:"name_part,omitempty"`
-	IsExtension      *bool   `protobuf:"varint,2,req,name=is_extension,json=isExtension" json:"is_extension,omitempty"`
-	XXX_unrecognized []byte  `json:"-"`
-}
+const FeatureSet_ENUM_TYPE_UNKNOWN = descriptorpb.FeatureSet_ENUM_TYPE_UNKNOWN
+const FeatureSet_OPEN = descriptorpb.FeatureSet_OPEN
+const FeatureSet_CLOSED = descriptorpb.FeatureSet_CLOSED
 
-func (m *UninterpretedOption_NamePart) Reset()         { *m = UninterpretedOption_NamePart{} }
-func (m *UninterpretedOption_NamePart) String() string { return proto.CompactTextString(m) }
-func (*UninterpretedOption_NamePart) ProtoMessage()    {}
-func (*UninterpretedOption_NamePart) Descriptor() ([]byte, []int) {
-	return fileDescriptor0, []int{17, 0}
-}
+var FeatureSet_EnumType_name = descriptorpb.FeatureSet_EnumType_name
+var FeatureSet_EnumType_value = descriptorpb.FeatureSet_EnumType_value
 
-func (m *UninterpretedOption_NamePart) GetNamePart() string {
-	if m != nil && m.NamePart != nil {
-		return *m.NamePart
-	}
-	return ""
-}
+type FeatureSet_RepeatedFieldEncoding = descriptorpb.FeatureSet_RepeatedFieldEncoding
 
-func (m *UninterpretedOption_NamePart) GetIsExtension() bool {
-	if m != nil && m.IsExtension != nil {
-		return *m.IsExtension
-	}
-	return false
-}
+const FeatureSet_REPEATED_FIELD_ENCODING_UNKNOWN = descriptorpb.FeatureSet_REPEATED_FIELD_ENCODING_UNKNOWN
+const FeatureSet_PACKED = descriptorpb.FeatureSet_PACKED
+const FeatureSet_EXPANDED = descriptorpb.FeatureSet_EXPANDED
 
-// Encapsulates information about the original source file from which a
-// FileDescriptorProto was generated.
-type SourceCodeInfo struct {
-	// A Location identifies a piece of source code in a .proto file which
-	// corresponds to a particular definition.  This information is intended
-	// to be useful to IDEs, code indexers, documentation generators, and similar
-	// tools.
-	//
-	// For example, say we have a file like:
-	//   message Foo {
-	//     optional string foo = 1;
-	//   }
-	// Let's look at just the field definition:
-	//   optional string foo = 1;
-	//   ^       ^^     ^^  ^  ^^^
-	//   a       bc     de  f  ghi
-	// We have the following locations:
-	//   span   path               represents
-	//   [a,i)  [ 4, 0, 2, 0 ]     The whole field definition.
-	//   [a,b)  [ 4, 0, 2, 0, 4 ]  The label (optional).
-	//   [c,d)  [ 4, 0, 2, 0, 5 ]  The type (string).
-	//   [e,f)  [ 4, 0, 2, 0, 1 ]  The name (foo).
-	//   [g,h)  [ 4, 0, 2, 0, 3 ]  The number (1).
-	//
-	// Notes:
-	// - A location may refer to a repeated field itself (i.e. not to any
-	//   particular index within it).  This is used whenever a set of elements are
-	//   logically enclosed in a single code segment.  For example, an entire
-	//   extend block (possibly containing multiple extension definitions) will
-	//   have an outer location whose path refers to the "extensions" repeated
-	//   field without an index.
-	// - Multiple locations may have the same path.  This happens when a single
-	//   logical declaration is spread out across multiple places.  The most
-	//   obvious example is the "extend" block again -- there may be multiple
-	//   extend blocks in the same scope, each of which will have the same path.
-	// - A location's span is not always a subset of its parent's span.  For
-	//   example, the "extendee" of an extension declaration appears at the
-	//   beginning of the "extend" block and is shared by all extensions within
-	//   the block.
-	// - Just because a location's span is a subset of some other location's span
-	//   does not mean that it is a descendent.  For example, a "group" defines
-	//   both a type and a field in a single declaration.  Thus, the locations
-	//   corresponding to the type and field and their components will overlap.
-	// - Code which tries to interpret locations should probably be designed to
-	//   ignore those that it doesn't understand, as more types of locations could
-	//   be recorded in the future.
-	Location         []*SourceCodeInfo_Location `protobuf:"bytes,1,rep,name=location" json:"location,omitempty"`
-	XXX_unrecognized []byte                     `json:"-"`
-}
+var FeatureSet_RepeatedFieldEncoding_name = descriptorpb.FeatureSet_RepeatedFieldEncoding_name
+var FeatureSet_RepeatedFieldEncoding_value = descriptorpb.FeatureSet_RepeatedFieldEncoding_value
 
-func (m *SourceCodeInfo) Reset()                    { *m = SourceCodeInfo{} }
-func (m *SourceCodeInfo) String() string            { return proto.CompactTextString(m) }
-func (*SourceCodeInfo) ProtoMessage()               {}
-func (*SourceCodeInfo) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{18} }
+type FeatureSet_Utf8Validation = descriptorpb.FeatureSet_Utf8Validation
 
-func (m *SourceCodeInfo) GetLocation() []*SourceCodeInfo_Location {
-	if m != nil {
-		return m.Location
-	}
-	return nil
-}
+const FeatureSet_UTF8_VALIDATION_UNKNOWN = descriptorpb.FeatureSet_UTF8_VALIDATION_UNKNOWN
+const FeatureSet_VERIFY = descriptorpb.FeatureSet_VERIFY
+const FeatureSet_NONE = descriptorpb.FeatureSet_NONE
 
-type SourceCodeInfo_Location struct {
-	// Identifies which part of the FileDescriptorProto was defined at this
-	// location.
-	//
-	// Each element is a field number or an index.  They form a path from
-	// the root FileDescriptorProto to the place where the definition.  For
-	// example, this path:
-	//   [ 4, 3, 2, 7, 1 ]
-	// refers to:
-	//   file.message_type(3)  // 4, 3
-	//       .field(7)         // 2, 7
-	//       .name()           // 1
-	// This is because FileDescriptorProto.message_type has field number 4:
-	//   repeated DescriptorProto message_type = 4;
-	// and DescriptorProto.field has field number 2:
-	//   repeated FieldDescriptorProto field = 2;
-	// and FieldDescriptorProto.name has field number 1:
-	//   optional string name = 1;
-	//
-	// Thus, the above path gives the location of a field name.  If we removed
-	// the last element:
-	//   [ 4, 3, 2, 7 ]
-	// this path refers to the whole field declaration (from the beginning
-	// of the label to the terminating semicolon).
-	Path []int32 `protobuf:"varint,1,rep,packed,name=path" json:"path,omitempty"`
-	// Always has exactly three or four elements: start line, start column,
-	// end line (optional, otherwise assumed same as start line), end column.
-	// These are packed into a single field for efficiency.  Note that line
-	// and column numbers are zero-based -- typically you will want to add
-	// 1 to each before displaying to a user.
-	Span []int32 `protobuf:"varint,2,rep,packed,name=span" json:"span,omitempty"`
-	// If this SourceCodeInfo represents a complete declaration, these are any
-	// comments appearing before and after the declaration which appear to be
-	// attached to the declaration.
-	//
-	// A series of line comments appearing on consecutive lines, with no other
-	// tokens appearing on those lines, will be treated as a single comment.
-	//
-	// leading_detached_comments will keep paragraphs of comments that appear
-	// before (but not connected to) the current element. Each paragraph,
-	// separated by empty lines, will be one comment element in the repeated
-	// field.
-	//
-	// Only the comment content is provided; comment markers (e.g. //) are
-	// stripped out.  For block comments, leading whitespace and an asterisk
-	// will be stripped from the beginning of each line other than the first.
-	// Newlines are included in the output.
-	//
-	// Examples:
-	//
-	//   optional int32 foo = 1;  // Comment attached to foo.
-	//   // Comment attached to bar.
-	//   optional int32 bar = 2;
-	//
-	//   optional string baz = 3;
-	//   // Comment attached to baz.
-	//   // Another line attached to baz.
-	//
-	//   // Comment attached to qux.
-	//   //
-	//   // Another line attached to qux.
-	//   optional double qux = 4;
-	//
-	//   // Detached comment for corge. This is not leading or trailing comments
-	//   // to qux or corge because there are blank lines separating it from
-	//   // both.
-	//
-	//   // Detached comment for corge paragraph 2.
-	//
-	//   optional string corge = 5;
-	//   /* Block comment attached
-	//    * to corge.  Leading asterisks
-	//    * will be removed. */
-	//   /* Block comment attached to
-	//    * grault. */
-	//   optional int32 grault = 6;
-	//
-	//   // ignored detached comments.
-	LeadingComments         *string  `protobuf:"bytes,3,opt,name=leading_comments,json=leadingComments" json:"leading_comments,omitempty"`
-	TrailingComments        *string  `protobuf:"bytes,4,opt,name=trailing_comments,json=trailingComments" json:"trailing_comments,omitempty"`
-	LeadingDetachedComments []string `protobuf:"bytes,6,rep,name=leading_detached_comments,json=leadingDetachedComments" json:"leading_detached_comments,omitempty"`
-	XXX_unrecognized        []byte   `json:"-"`
-}
+var FeatureSet_Utf8Validation_name = descriptorpb.FeatureSet_Utf8Validation_name
+var FeatureSet_Utf8Validation_value = descriptorpb.FeatureSet_Utf8Validation_value
 
-func (m *SourceCodeInfo_Location) Reset()                    { *m = SourceCodeInfo_Location{} }
-func (m *SourceCodeInfo_Location) String() string            { return proto.CompactTextString(m) }
-func (*SourceCodeInfo_Location) ProtoMessage()               {}
-func (*SourceCodeInfo_Location) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{18, 0} }
+type FeatureSet_MessageEncoding = descriptorpb.FeatureSet_MessageEncoding
 
-func (m *SourceCodeInfo_Location) GetPath() []int32 {
-	if m != nil {
-		return m.Path
-	}
-	return nil
-}
+const FeatureSet_MESSAGE_ENCODING_UNKNOWN = descriptorpb.FeatureSet_MESSAGE_ENCODING_UNKNOWN
+const FeatureSet_LENGTH_PREFIXED = descriptorpb.FeatureSet_LENGTH_PREFIXED
+const FeatureSet_DELIMITED = descriptorpb.FeatureSet_DELIMITED
 
-func (m *SourceCodeInfo_Location) GetSpan() []int32 {
-	if m != nil {
-		return m.Span
-	}
-	return nil
-}
+var FeatureSet_MessageEncoding_name = descriptorpb.FeatureSet_MessageEncoding_name
+var FeatureSet_MessageEncoding_value = descriptorpb.FeatureSet_MessageEncoding_value
 
-func (m *SourceCodeInfo_Location) GetLeadingComments() string {
-	if m != nil && m.LeadingComments != nil {
-		return *m.LeadingComments
-	}
-	return ""
-}
+type FeatureSet_JsonFormat = descriptorpb.FeatureSet_JsonFormat
 
-func (m *SourceCodeInfo_Location) GetTrailingComments() string {
-	if m != nil && m.TrailingComments != nil {
-		return *m.TrailingComments
-	}
-	return ""
-}
+const FeatureSet_JSON_FORMAT_UNKNOWN = descriptorpb.FeatureSet_JSON_FORMAT_UNKNOWN
+const FeatureSet_ALLOW = descriptorpb.FeatureSet_ALLOW
+const FeatureSet_LEGACY_BEST_EFFORT = descriptorpb.FeatureSet_LEGACY_BEST_EFFORT
 
-func (m *SourceCodeInfo_Location) GetLeadingDetachedComments() []string {
-	if m != nil {
-		return m.LeadingDetachedComments
-	}
-	return nil
-}
+var FeatureSet_JsonFormat_name = descriptorpb.FeatureSet_JsonFormat_name
+var FeatureSet_JsonFormat_value = descriptorpb.FeatureSet_JsonFormat_value
 
-// Describes the relationship between generated code and its original source
-// file. A GeneratedCodeInfo message is associated with only one generated
-// source file, but may contain references to different source .proto files.
-type GeneratedCodeInfo struct {
-	// An Annotation connects some span of text in generated code to an element
-	// of its generating .proto file.
-	Annotation       []*GeneratedCodeInfo_Annotation `protobuf:"bytes,1,rep,name=annotation" json:"annotation,omitempty"`
-	XXX_unrecognized []byte                          `json:"-"`
-}
+type GeneratedCodeInfo_Annotation_Semantic = descriptorpb.GeneratedCodeInfo_Annotation_Semantic
 
-func (m *GeneratedCodeInfo) Reset()                    { *m = GeneratedCodeInfo{} }
-func (m *GeneratedCodeInfo) String() string            { return proto.CompactTextString(m) }
-func (*GeneratedCodeInfo) ProtoMessage()               {}
-func (*GeneratedCodeInfo) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{19} }
+const GeneratedCodeInfo_Annotation_NONE = descriptorpb.GeneratedCodeInfo_Annotation_NONE
+const GeneratedCodeInfo_Annotation_SET = descriptorpb.GeneratedCodeInfo_Annotation_SET
+const GeneratedCodeInfo_Annotation_ALIAS = descriptorpb.GeneratedCodeInfo_Annotation_ALIAS
 
-func (m *GeneratedCodeInfo) GetAnnotation() []*GeneratedCodeInfo_Annotation {
-	if m != nil {
-		return m.Annotation
-	}
-	return nil
-}
+var GeneratedCodeInfo_Annotation_Semantic_name = descriptorpb.GeneratedCodeInfo_Annotation_Semantic_name
+var GeneratedCodeInfo_Annotation_Semantic_value = descriptorpb.GeneratedCodeInfo_Annotation_Semantic_value
 
-type GeneratedCodeInfo_Annotation struct {
-	// Identifies the element in the original source .proto file. This field
-	// is formatted the same as SourceCodeInfo.Location.path.
-	Path []int32 `protobuf:"varint,1,rep,packed,name=path" json:"path,omitempty"`
-	// Identifies the filesystem path to the original source .proto.
-	SourceFile *string `protobuf:"bytes,2,opt,name=source_file,json=sourceFile" json:"source_file,omitempty"`
-	// Identifies the starting offset in bytes in the generated code
-	// that relates to the identified object.
-	Begin *int32 `protobuf:"varint,3,opt,name=begin" json:"begin,omitempty"`
-	// Identifies the ending offset in bytes in the generated code that
-	// relates to the identified offset. The end offset should be one past
-	// the last relevant byte (so the length of the text = end - begin).
-	End              *int32 `protobuf:"varint,4,opt,name=end" json:"end,omitempty"`
-	XXX_unrecognized []byte `json:"-"`
-}
+type FileDescriptorSet = descriptorpb.FileDescriptorSet
+type FileDescriptorProto = descriptorpb.FileDescriptorProto
+type DescriptorProto = descriptorpb.DescriptorProto
+type ExtensionRangeOptions = descriptorpb.ExtensionRangeOptions
 
-func (m *GeneratedCodeInfo_Annotation) Reset()         { *m = GeneratedCodeInfo_Annotation{} }
-func (m *GeneratedCodeInfo_Annotation) String() string { return proto.CompactTextString(m) }
-func (*GeneratedCodeInfo_Annotation) ProtoMessage()    {}
-func (*GeneratedCodeInfo_Annotation) Descriptor() ([]byte, []int) {
-	return fileDescriptor0, []int{19, 0}
-}
+const Default_ExtensionRangeOptions_Verification = descriptorpb.Default_ExtensionRangeOptions_Verification
 
-func (m *GeneratedCodeInfo_Annotation) GetPath() []int32 {
-	if m != nil {
-		return m.Path
-	}
-	return nil
-}
+type FieldDescriptorProto = descriptorpb.FieldDescriptorProto
+type OneofDescriptorProto = descriptorpb.OneofDescriptorProto
+type EnumDescriptorProto = descriptorpb.EnumDescriptorProto
+type EnumValueDescriptorProto = descriptorpb.EnumValueDescriptorProto
+type ServiceDescriptorProto = descriptorpb.ServiceDescriptorProto
+type MethodDescriptorProto = descriptorpb.MethodDescriptorProto
 
-func (m *GeneratedCodeInfo_Annotation) GetSourceFile() string {
-	if m != nil && m.SourceFile != nil {
-		return *m.SourceFile
-	}
-	return ""
-}
+const Default_MethodDescriptorProto_ClientStreaming = descriptorpb.Default_MethodDescriptorProto_ClientStreaming
+const Default_MethodDescriptorProto_ServerStreaming = descriptorpb.Default_MethodDescriptorProto_ServerStreaming
 
-func (m *GeneratedCodeInfo_Annotation) GetBegin() int32 {
-	if m != nil && m.Begin != nil {
-		return *m.Begin
-	}
-	return 0
-}
+type FileOptions = descriptorpb.FileOptions
 
-func (m *GeneratedCodeInfo_Annotation) GetEnd() int32 {
-	if m != nil && m.End != nil {
-		return *m.End
-	}
-	return 0
-}
+const Default_FileOptions_JavaMultipleFiles = descriptorpb.Default_FileOptions_JavaMultipleFiles
+const Default_FileOptions_JavaStringCheckUtf8 = descriptorpb.Default_FileOptions_JavaStringCheckUtf8
+const Default_FileOptions_OptimizeFor = descriptorpb.Default_FileOptions_OptimizeFor
+const Default_FileOptions_CcGenericServices = descriptorpb.Default_FileOptions_CcGenericServices
+const Default_FileOptions_JavaGenericServices = descriptorpb.Default_FileOptions_JavaGenericServices
+const Default_FileOptions_PyGenericServices = descriptorpb.Default_FileOptions_PyGenericServices
+const Default_FileOptions_Deprecated = descriptorpb.Default_FileOptions_Deprecated
+const Default_FileOptions_CcEnableArenas = descriptorpb.Default_FileOptions_CcEnableArenas
 
-func init() {
-	proto.RegisterType((*FileDescriptorSet)(nil), "google.protobuf.FileDescriptorSet")
-	proto.RegisterType((*FileDescriptorProto)(nil), "google.protobuf.FileDescriptorProto")
-	proto.RegisterType((*DescriptorProto)(nil), "google.protobuf.DescriptorProto")
-	proto.RegisterType((*DescriptorProto_ExtensionRange)(nil), "google.protobuf.DescriptorProto.ExtensionRange")
-	proto.RegisterType((*DescriptorProto_ReservedRange)(nil), "google.protobuf.DescriptorProto.ReservedRange")
-	proto.RegisterType((*FieldDescriptorProto)(nil), "google.protobuf.FieldDescriptorProto")
-	proto.RegisterType((*OneofDescriptorProto)(nil), "google.protobuf.OneofDescriptorProto")
-	proto.RegisterType((*EnumDescriptorProto)(nil), "google.protobuf.EnumDescriptorProto")
-	proto.RegisterType((*EnumValueDescriptorProto)(nil), "google.protobuf.EnumValueDescriptorProto")
-	proto.RegisterType((*ServiceDescriptorProto)(nil), "google.protobuf.ServiceDescriptorProto")
-	proto.RegisterType((*MethodDescriptorProto)(nil), "google.protobuf.MethodDescriptorProto")
-	proto.RegisterType((*FileOptions)(nil), "google.protobuf.FileOptions")
-	proto.RegisterType((*MessageOptions)(nil), "google.protobuf.MessageOptions")
-	proto.RegisterType((*FieldOptions)(nil), "google.protobuf.FieldOptions")
-	proto.RegisterType((*OneofOptions)(nil), "google.protobuf.OneofOptions")
-	proto.RegisterType((*EnumOptions)(nil), "google.protobuf.EnumOptions")
-	proto.RegisterType((*EnumValueOptions)(nil), "google.protobuf.EnumValueOptions")
-	proto.RegisterType((*ServiceOptions)(nil), "google.protobuf.ServiceOptions")
-	proto.RegisterType((*MethodOptions)(nil), "google.protobuf.MethodOptions")
-	proto.RegisterType((*UninterpretedOption)(nil), "google.protobuf.UninterpretedOption")
-	proto.RegisterType((*UninterpretedOption_NamePart)(nil), "google.protobuf.UninterpretedOption.NamePart")
-	proto.RegisterType((*SourceCodeInfo)(nil), "google.protobuf.SourceCodeInfo")
-	proto.RegisterType((*SourceCodeInfo_Location)(nil), "google.protobuf.SourceCodeInfo.Location")
-	proto.RegisterType((*GeneratedCodeInfo)(nil), "google.protobuf.GeneratedCodeInfo")
-	proto.RegisterType((*GeneratedCodeInfo_Annotation)(nil), "google.protobuf.GeneratedCodeInfo.Annotation")
-	proto.RegisterEnum("google.protobuf.FieldDescriptorProto_Type", FieldDescriptorProto_Type_name, FieldDescriptorProto_Type_value)
-	proto.RegisterEnum("google.protobuf.FieldDescriptorProto_Label", FieldDescriptorProto_Label_name, FieldDescriptorProto_Label_value)
-	proto.RegisterEnum("google.protobuf.FileOptions_OptimizeMode", FileOptions_OptimizeMode_name, FileOptions_OptimizeMode_value)
-	proto.RegisterEnum("google.protobuf.FieldOptions_CType", FieldOptions_CType_name, FieldOptions_CType_value)
-	proto.RegisterEnum("google.protobuf.FieldOptions_JSType", FieldOptions_JSType_name, FieldOptions_JSType_value)
-}
+type MessageOptions = descriptorpb.MessageOptions
+
+const Default_MessageOptions_MessageSetWireFormat = descriptorpb.Default_MessageOptions_MessageSetWireFormat
+const Default_MessageOptions_NoStandardDescriptorAccessor = descriptorpb.Default_MessageOptions_NoStandardDescriptorAccessor
+const Default_MessageOptions_Deprecated = descriptorpb.Default_MessageOptions_Deprecated
+
+type FieldOptions = descriptorpb.FieldOptions
 
-func init() { proto.RegisterFile("google/protobuf/descriptor.proto", fileDescriptor0) }
-
-var fileDescriptor0 = []byte{
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-	0x3c, 0x5e, 0x70, 0x15, 0xbd, 0x2a, 0xb1, 0x84, 0x12, 0x75, 0x7c, 0x93, 0x77, 0x83, 0x9a, 0x5e,
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-	0x10, 0xe1, 0x7c, 0xcc, 0xf7, 0xd5, 0xa1, 0xc4, 0x12, 0x0d, 0xb2, 0x3b, 0x1a, 0x51, 0x16, 0x06,
-	0xf1, 0xbe, 0x46, 0xf8, 0x5e, 0x04, 0xe3, 0xdb, 0xb0, 0x1a, 0xfa, 0xc4, 0x76, 0x32, 0xdc, 0x82,
-	0xe0, 0xa2, 0x58, 0x90, 0x90, 0x77, 0xe0, 0x72, 0x6c, 0xd7, 0xa2, 0x21, 0x31, 0xcf, 0xa8, 0x35,
-	0x51, 0x2a, 0x89, 0x37, 0xb6, 0xb7, 0x22, 0x42, 0x3b, 0x92, 0xc7, 0xba, 0x8d, 0xbf, 0x2b, 0xb0,
-	0x1a, 0xb7, 0xf4, 0x56, 0x12, 0xac, 0x43, 0x00, 0xc2, 0x98, 0x1b, 0xa6, 0xc3, 0x35, 0x9b, 0xca,
-	0x33, 0x7a, 0xcd, 0x56, 0xa2, 0xa4, 0xa7, 0x0c, 0x6c, 0x8c, 0x00, 0x26, 0x92, 0x85, 0x61, 0xbb,
-	0x02, 0xd5, 0xe8, 0x8d, 0x5b, 0xfc, 0xa3, 0x44, 0x7e, 0x04, 0x82, 0x84, 0x78, 0xef, 0x8f, 0xd7,
-	0xa1, 0x78, 0x4a, 0x87, 0x36, 0x8b, 0x5e, 0xde, 0xe4, 0x20, 0x7e, 0xcf, 0x2b, 0x24, 0xef, 0x79,
-	0xbb, 0x4f, 0x60, 0xcd, 0x74, 0x47, 0xd3, 0xee, 0xee, 0xa2, 0xa9, 0x0f, 0xd1, 0xe0, 0x33, 0xe5,
-	0x0b, 0x98, 0x74, 0x6a, 0x5f, 0xe5, 0xf2, 0xfb, 0xbd, 0xdd, 0x3f, 0xe5, 0x36, 0xf6, 0xa5, 0x5e,
-	0x2f, 0x5e, 0xa6, 0x4e, 0x07, 0x0e, 0x35, 0xb9, 0xeb, 0xff, 0x0d, 0x00, 0x00, 0xff, 0xff, 0x5f,
-	0x1c, 0x48, 0x4f, 0x0d, 0x1a, 0x00, 0x00,
+const Default_FieldOptions_Ctype = descriptorpb.Default_FieldOptions_Ctype
+const Default_FieldOptions_Jstype = descriptorpb.Default_FieldOptions_Jstype
+const Default_FieldOptions_Lazy = descriptorpb.Default_FieldOptions_Lazy
+const Default_FieldOptions_UnverifiedLazy = descriptorpb.Default_FieldOptions_UnverifiedLazy
+const Default_FieldOptions_Deprecated = descriptorpb.Default_FieldOptions_Deprecated
+const Default_FieldOptions_Weak = descriptorpb.Default_FieldOptions_Weak
+const Default_FieldOptions_DebugRedact = descriptorpb.Default_FieldOptions_DebugRedact
+
+type OneofOptions = descriptorpb.OneofOptions
+type EnumOptions = descriptorpb.EnumOptions
+
+const Default_EnumOptions_Deprecated = descriptorpb.Default_EnumOptions_Deprecated
+
+type EnumValueOptions = descriptorpb.EnumValueOptions
+
+const Default_EnumValueOptions_Deprecated = descriptorpb.Default_EnumValueOptions_Deprecated
+const Default_EnumValueOptions_DebugRedact = descriptorpb.Default_EnumValueOptions_DebugRedact
+
+type ServiceOptions = descriptorpb.ServiceOptions
+
+const Default_ServiceOptions_Deprecated = descriptorpb.Default_ServiceOptions_Deprecated
+
+type MethodOptions = descriptorpb.MethodOptions
+
+const Default_MethodOptions_Deprecated = descriptorpb.Default_MethodOptions_Deprecated
+const Default_MethodOptions_IdempotencyLevel = descriptorpb.Default_MethodOptions_IdempotencyLevel
+
+type UninterpretedOption = descriptorpb.UninterpretedOption
+type FeatureSet = descriptorpb.FeatureSet
+type FeatureSetDefaults = descriptorpb.FeatureSetDefaults
+type SourceCodeInfo = descriptorpb.SourceCodeInfo
+type GeneratedCodeInfo = descriptorpb.GeneratedCodeInfo
+type DescriptorProto_ExtensionRange = descriptorpb.DescriptorProto_ExtensionRange
+type DescriptorProto_ReservedRange = descriptorpb.DescriptorProto_ReservedRange
+type ExtensionRangeOptions_Declaration = descriptorpb.ExtensionRangeOptions_Declaration
+type EnumDescriptorProto_EnumReservedRange = descriptorpb.EnumDescriptorProto_EnumReservedRange
+type FieldOptions_EditionDefault = descriptorpb.FieldOptions_EditionDefault
+type UninterpretedOption_NamePart = descriptorpb.UninterpretedOption_NamePart
+type FeatureSetDefaults_FeatureSetEditionDefault = descriptorpb.FeatureSetDefaults_FeatureSetEditionDefault
+type SourceCodeInfo_Location = descriptorpb.SourceCodeInfo_Location
+type GeneratedCodeInfo_Annotation = descriptorpb.GeneratedCodeInfo_Annotation
+
+var File_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto protoreflect.FileDescriptor
+
+var file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_rawDesc = []byte{
+	0x0a, 0x44, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
+	0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x63, 0x2d, 0x67, 0x65, 0x6e, 0x2d, 0x67, 0x6f, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72,
+	0x69, 0x70, 0x74, 0x6f, 0x72, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72,
+	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x20, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74,
+	0x6f, 0x72, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x42, 0x40, 0x5a, 0x3e, 0x67, 0x69, 0x74, 0x68,
+	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x2d, 0x67, 0x65,
+	0x6e, 0x2d, 0x67, 0x6f, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72, 0x3b,
+	0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x32,
+}
+
+var file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_goTypes = []interface{}{}
+var file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_init() }
+func file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_init() {
+	if File_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   0,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_goTypes,
+		DependencyIndexes: file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_depIdxs,
+	}.Build()
+	File_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto = out.File
+	file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_rawDesc = nil
+	file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_goTypes = nil
+	file_github_com_golang_protobuf_protoc_gen_go_descriptor_descriptor_proto_depIdxs = nil
 }
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/Makefile b/vendor/github.com/golang/protobuf/protoc-gen-go/generator/Makefile
deleted file mode 100644
index b5715c35..00000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/Makefile
+++ /dev/null
@@ -1,40 +0,0 @@
-# Go support for Protocol Buffers - Google's data interchange format
-#
-# Copyright 2010 The Go Authors.  All rights reserved.
-# https://github.com/golang/protobuf
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-include $(GOROOT)/src/Make.inc
-
-TARG=github.com/golang/protobuf/compiler/generator
-GOFILES=\
-	generator.go\
-
-DEPS=../descriptor ../plugin ../../proto
-
-include $(GOROOT)/src/Make.pkg
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/generator.go b/vendor/github.com/golang/protobuf/protoc-gen-go/generator/generator.go
index a5879fe6..53b0251e 100644
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/generator.go
+++ b/vendor/github.com/golang/protobuf/protoc-gen-go/generator/generator.go
@@ -1,68 +1,56 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package generator is deprecated.
 //
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
+// This package is excluded from the Go protocol buffer compatibility guarantee
+// and may be deleted at some point in the future.
 //
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-/*
-	The code generator for the plugin for the Google protocol buffer compiler.
-	It generates Go code from the protocol buffer description files read by the
-	main routine.
-*/
+// Deprecated: Use the "google.golang.org/protobuf/compiler/protogen" package
+// instead to write protoc plugins in Go.
 package generator
 
 import (
 	"bufio"
 	"bytes"
 	"compress/gzip"
+	"crypto/sha256"
+	"encoding/hex"
 	"fmt"
+	"go/ast"
+	"go/build"
 	"go/parser"
 	"go/printer"
 	"go/token"
 	"log"
 	"os"
 	"path"
+	"sort"
 	"strconv"
 	"strings"
 	"unicode"
 	"unicode/utf8"
 
 	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/protoc-gen-go/generator/internal/remap"
 
 	"github.com/golang/protobuf/protoc-gen-go/descriptor"
 	plugin "github.com/golang/protobuf/protoc-gen-go/plugin"
 )
 
+func init() {
+	fmt.Fprint(os.Stderr,
+		"WARNING: Package \"github.com/golang/protobuf/protoc-gen-go/generator\" is deprecated.\n"+
+			"\tA future release of golang/protobuf will delete this package,\n"+
+			"\twhich has long been excluded from the compatibility promise.\n\n")
+}
+
 // generatedCodeVersion indicates a version of the generated code.
 // It is incremented whenever an incompatibility between the generated code and
 // proto package is introduced; the generated code references
 // a constant, proto.ProtoPackageIsVersionN (where N is generatedCodeVersion).
-const generatedCodeVersion = 2
+const generatedCodeVersion = 3
 
 // A Plugin provides functionality to add to the output during Go code generation,
 // such as to produce RPC stubs.
@@ -88,6 +76,14 @@ func RegisterPlugin(p Plugin) {
 	plugins = append(plugins, p)
 }
 
+// A GoImportPath is the import path of a Go package. e.g., "google.golang.org/genproto/protobuf".
+type GoImportPath string
+
+func (p GoImportPath) String() string { return strconv.Quote(string(p)) }
+
+// A GoPackageName is the name of a Go package. e.g., "protobuf".
+type GoPackageName string
+
 // Each type we import as a protocol buffer (other than FileDescriptorProto) needs
 // a pointer to the FileDescriptorProto that represents it.  These types achieve that
 // wrapping by placing each Proto inside a struct with the pointer to its File. The
@@ -96,19 +92,21 @@ func RegisterPlugin(p Plugin) {
 
 // The file and package name method are common to messages and enums.
 type common struct {
-	file *descriptor.FileDescriptorProto // File this object comes from.
+	file *FileDescriptor // File this object comes from.
 }
 
-// PackageName is name in the package clause in the generated file.
-func (c *common) PackageName() string { return uniquePackageOf(c.file) }
+// GoImportPath is the import path of the Go package containing the type.
+func (c *common) GoImportPath() GoImportPath {
+	return c.file.importPath
+}
 
-func (c *common) File() *descriptor.FileDescriptorProto { return c.file }
+func (c *common) File() *FileDescriptor { return c.file }
 
 func fileIsProto3(file *descriptor.FileDescriptorProto) bool {
 	return file.GetSyntax() == "proto3"
 }
 
-func (c *common) proto3() bool { return fileIsProto3(c.file) }
+func (c *common) proto3() bool { return fileIsProto3(c.file.FileDescriptorProto) }
 
 // Descriptor represents a protocol buffer message.
 type Descriptor struct {
@@ -134,7 +132,7 @@ func (d *Descriptor) TypeName() []string {
 	for parent := d; parent != nil; parent = parent.parent {
 		n++
 	}
-	s := make([]string, n, n)
+	s := make([]string, n)
 	for parent := d; parent != nil; parent = parent.parent {
 		n--
 		s[n] = parent.GetName()
@@ -256,77 +254,60 @@ type FileDescriptor struct {
 	// This is used for supporting public imports.
 	exported map[Object][]symbol
 
-	index int // The index of this file in the list of files to generate code for
+	importPath  GoImportPath  // Import path of this file's package.
+	packageName GoPackageName // Name of this file's Go package.
 
 	proto3 bool // whether to generate proto3 code for this file
 }
 
-// PackageName is the package name we'll use in the generated code to refer to this file.
-func (d *FileDescriptor) PackageName() string { return uniquePackageOf(d.FileDescriptorProto) }
-
 // VarName is the variable name we'll use in the generated code to refer
 // to the compressed bytes of this descriptor. It is not exported, so
 // it is only valid inside the generated package.
-func (d *FileDescriptor) VarName() string { return fmt.Sprintf("fileDescriptor%d", d.index) }
+func (d *FileDescriptor) VarName() string {
+	h := sha256.Sum256([]byte(d.GetName()))
+	return fmt.Sprintf("fileDescriptor_%s", hex.EncodeToString(h[:8]))
+}
 
 // goPackageOption interprets the file's go_package option.
 // If there is no go_package, it returns ("", "", false).
 // If there's a simple name, it returns ("", pkg, true).
 // If the option implies an import path, it returns (impPath, pkg, true).
-func (d *FileDescriptor) goPackageOption() (impPath, pkg string, ok bool) {
-	pkg = d.GetOptions().GetGoPackage()
-	if pkg == "" {
-		return
-	}
-	ok = true
-	// The presence of a slash implies there's an import path.
-	slash := strings.LastIndex(pkg, "/")
-	if slash < 0 {
-		return
-	}
-	impPath, pkg = pkg, pkg[slash+1:]
-	// A semicolon-delimited suffix overrides the package name.
-	sc := strings.IndexByte(impPath, ';')
-	if sc < 0 {
-		return
+func (d *FileDescriptor) goPackageOption() (impPath GoImportPath, pkg GoPackageName, ok bool) {
+	opt := d.GetOptions().GetGoPackage()
+	if opt == "" {
+		return "", "", false
 	}
-	impPath, pkg = impPath[:sc], impPath[sc+1:]
-	return
-}
-
-// goPackageName returns the Go package name to use in the
-// generated Go file.  The result explicit reports whether the name
-// came from an option go_package statement.  If explicit is false,
-// the name was derived from the protocol buffer's package statement
-// or the input file name.
-func (d *FileDescriptor) goPackageName() (name string, explicit bool) {
-	// Does the file have a "go_package" option?
-	if _, pkg, ok := d.goPackageOption(); ok {
-		return pkg, true
+	// A semicolon-delimited suffix delimits the import path and package name.
+	sc := strings.Index(opt, ";")
+	if sc >= 0 {
+		return GoImportPath(opt[:sc]), cleanPackageName(opt[sc+1:]), true
 	}
-
-	// Does the file have a package clause?
-	if pkg := d.GetPackage(); pkg != "" {
-		return pkg, false
+	// The presence of a slash implies there's an import path.
+	slash := strings.LastIndex(opt, "/")
+	if slash >= 0 {
+		return GoImportPath(opt), cleanPackageName(opt[slash+1:]), true
 	}
-	// Use the file base name.
-	return baseName(d.GetName()), false
+	return "", cleanPackageName(opt), true
 }
 
 // goFileName returns the output name for the generated Go file.
-func (d *FileDescriptor) goFileName() string {
+func (d *FileDescriptor) goFileName(pathType pathType) string {
 	name := *d.Name
 	if ext := path.Ext(name); ext == ".proto" || ext == ".protodevel" {
 		name = name[:len(name)-len(ext)]
 	}
 	name += ".pb.go"
 
+	if pathType == pathTypeSourceRelative {
+		return name
+	}
+
 	// Does the file have a "go_package" option?
 	// If it does, it may override the filename.
 	if impPath, _, ok := d.goPackageOption(); ok && impPath != "" {
 		// Replace the existing dirname with the declared import path.
 		_, name = path.Split(name)
-		name = path.Join(impPath, name)
+		name = path.Join(string(impPath), name)
 		return name
 	}
 
@@ -341,14 +322,13 @@ func (d *FileDescriptor) addExport(obj Object, sym symbol) {
 type symbol interface {
 	// GenerateAlias should generate an appropriate alias
 	// for the symbol from the named package.
-	GenerateAlias(g *Generator, pkg string)
+	GenerateAlias(g *Generator, filename string, pkg GoPackageName)
 }
 
 type messageSymbol struct {
 	sym                         string
 	hasExtensions, isMessageSet bool
-	hasOneof                    bool
-	getters                     []getterSymbol
+	oneofTypes                  []string
 }
 
 type getterSymbol struct {
@@ -358,144 +338,12 @@ type getterSymbol struct {
 	genType  bool   // whether typ contains a generated type (message/group/enum)
 }
 
-func (ms *messageSymbol) GenerateAlias(g *Generator, pkg string) {
-	remoteSym := pkg + "." + ms.sym
-
-	g.P("type ", ms.sym, " ", remoteSym)
-	g.P("func (m *", ms.sym, ") Reset() { (*", remoteSym, ")(m).Reset() }")
-	g.P("func (m *", ms.sym, ") String() string { return (*", remoteSym, ")(m).String() }")
-	g.P("func (*", ms.sym, ") ProtoMessage() {}")
-	if ms.hasExtensions {
-		g.P("func (*", ms.sym, ") ExtensionRangeArray() []", g.Pkg["proto"], ".ExtensionRange ",
-			"{ return (*", remoteSym, ")(nil).ExtensionRangeArray() }")
-		if ms.isMessageSet {
-			g.P("func (m *", ms.sym, ") Marshal() ([]byte, error) ",
-				"{ return (*", remoteSym, ")(m).Marshal() }")
-			g.P("func (m *", ms.sym, ") Unmarshal(buf []byte) error ",
-				"{ return (*", remoteSym, ")(m).Unmarshal(buf) }")
-		}
-	}
-	if ms.hasOneof {
-		// Oneofs and public imports do not mix well.
-		// We can make them work okay for the binary format,
-		// but they're going to break weirdly for text/JSON.
-		enc := "_" + ms.sym + "_OneofMarshaler"
-		dec := "_" + ms.sym + "_OneofUnmarshaler"
-		size := "_" + ms.sym + "_OneofSizer"
-		encSig := "(msg " + g.Pkg["proto"] + ".Message, b *" + g.Pkg["proto"] + ".Buffer) error"
-		decSig := "(msg " + g.Pkg["proto"] + ".Message, tag, wire int, b *" + g.Pkg["proto"] + ".Buffer) (bool, error)"
-		sizeSig := "(msg " + g.Pkg["proto"] + ".Message) int"
-		g.P("func (m *", ms.sym, ") XXX_OneofFuncs() (func", encSig, ", func", decSig, ", func", sizeSig, ", []interface{}) {")
-		g.P("return ", enc, ", ", dec, ", ", size, ", nil")
-		g.P("}")
-
-		g.P("func ", enc, encSig, " {")
-		g.P("m := msg.(*", ms.sym, ")")
-		g.P("m0 := (*", remoteSym, ")(m)")
-		g.P("enc, _, _, _ := m0.XXX_OneofFuncs()")
-		g.P("return enc(m0, b)")
-		g.P("}")
-
-		g.P("func ", dec, decSig, " {")
-		g.P("m := msg.(*", ms.sym, ")")
-		g.P("m0 := (*", remoteSym, ")(m)")
-		g.P("_, dec, _, _ := m0.XXX_OneofFuncs()")
-		g.P("return dec(m0, tag, wire, b)")
-		g.P("}")
-
-		g.P("func ", size, sizeSig, " {")
-		g.P("m := msg.(*", ms.sym, ")")
-		g.P("m0 := (*", remoteSym, ")(m)")
-		g.P("_, _, size, _ := m0.XXX_OneofFuncs()")
-		g.P("return size(m0)")
-		g.P("}")
-	}
-	for _, get := range ms.getters {
-
-		if get.typeName != "" {
-			g.RecordTypeUse(get.typeName)
-		}
-		typ := get.typ
-		val := "(*" + remoteSym + ")(m)." + get.name + "()"
-		if get.genType {
-			// typ will be "*pkg.T" (message/group) or "pkg.T" (enum)
-			// or "map[t]*pkg.T" (map to message/enum).
-			// The first two of those might have a "[]" prefix if it is repeated.
-			// Drop any package qualifier since we have hoisted the type into this package.
-			rep := strings.HasPrefix(typ, "[]")
-			if rep {
-				typ = typ[2:]
-			}
-			isMap := strings.HasPrefix(typ, "map[")
-			star := typ[0] == '*'
-			if !isMap { // map types handled lower down
-				typ = typ[strings.Index(typ, ".")+1:]
-			}
-			if star {
-				typ = "*" + typ
-			}
-			if rep {
-				// Go does not permit conversion between slice types where both
-				// element types are named. That means we need to generate a bit
-				// of code in this situation.
-				// typ is the element type.
-				// val is the expression to get the slice from the imported type.
-
-				ctyp := typ // conversion type expression; "Foo" or "(*Foo)"
-				if star {
-					ctyp = "(" + typ + ")"
-				}
-
-				g.P("func (m *", ms.sym, ") ", get.name, "() []", typ, " {")
-				g.In()
-				g.P("o := ", val)
-				g.P("if o == nil {")
-				g.In()
-				g.P("return nil")
-				g.Out()
-				g.P("}")
-				g.P("s := make([]", typ, ", len(o))")
-				g.P("for i, x := range o {")
-				g.In()
-				g.P("s[i] = ", ctyp, "(x)")
-				g.Out()
-				g.P("}")
-				g.P("return s")
-				g.Out()
-				g.P("}")
-				continue
-			}
-			if isMap {
-				// Split map[keyTyp]valTyp.
-				bra, ket := strings.Index(typ, "["), strings.Index(typ, "]")
-				keyTyp, valTyp := typ[bra+1:ket], typ[ket+1:]
-				// Drop any package qualifier.
-				// Only the value type may be foreign.
-				star := valTyp[0] == '*'
-				valTyp = valTyp[strings.Index(valTyp, ".")+1:]
-				if star {
-					valTyp = "*" + valTyp
-				}
-
-				typ := "map[" + keyTyp + "]" + valTyp
-				g.P("func (m *", ms.sym, ") ", get.name, "() ", typ, " {")
-				g.P("o := ", val)
-				g.P("if o == nil { return nil }")
-				g.P("s := make(", typ, ", len(o))")
-				g.P("for k, v := range o {")
-				g.P("s[k] = (", valTyp, ")(v)")
-				g.P("}")
-				g.P("return s")
-				g.P("}")
-				continue
-			}
-			// Convert imported type into the forwarding type.
-			val = "(" + typ + ")(" + val + ")"
-		}
-
-		g.P("func (m *", ms.sym, ") ", get.name, "() ", typ, " { return ", val, " }")
+func (ms *messageSymbol) GenerateAlias(g *Generator, filename string, pkg GoPackageName) {
+	g.P("// ", ms.sym, " from public import ", filename)
+	g.P("type ", ms.sym, " = ", pkg, ".", ms.sym)
+	for _, name := range ms.oneofTypes {
+		g.P("type ", name, " = ", pkg, ".", name)
 	}
-
 }
 
 type enumSymbol struct {
@@ -503,16 +351,12 @@ type enumSymbol struct {
 	proto3 bool // Whether this came from a proto3 file.
 }
 
-func (es enumSymbol) GenerateAlias(g *Generator, pkg string) {
+func (es enumSymbol) GenerateAlias(g *Generator, filename string, pkg GoPackageName) {
 	s := es.name
-	g.P("type ", s, " ", pkg, ".", s)
+	g.P("// ", s, " from public import ", filename)
+	g.P("type ", s, " = ", pkg, ".", s)
 	g.P("var ", s, "_name = ", pkg, ".", s, "_name")
 	g.P("var ", s, "_value = ", pkg, ".", s, "_value")
-	g.P("func (x ", s, ") String() string { return (", pkg, ".", s, ")(x).String() }")
-	if !es.proto3 {
-		g.P("func (x ", s, ") Enum() *", s, "{ return (*", s, ")((", pkg, ".", s, ")(x).Enum()) }")
-		g.P("func (x *", s, ") UnmarshalJSON(data []byte) error { return (*", pkg, ".", s, ")(x).UnmarshalJSON(data) }")
-	}
 }
 
 type constOrVarSymbol struct {
@@ -521,8 +365,8 @@ type constOrVarSymbol struct {
 	cast string // if non-empty, a type cast is required (used for enums)
 }
 
-func (cs constOrVarSymbol) GenerateAlias(g *Generator, pkg string) {
-	v := pkg + "." + cs.sym
+func (cs constOrVarSymbol) GenerateAlias(g *Generator, filename string, pkg GoPackageName) {
+	v := string(pkg) + "." + cs.sym
 	if cs.cast != "" {
 		v = cs.cast + "(" + v + ")"
 	}
@@ -531,21 +375,9 @@ func (cs constOrVarSymbol) GenerateAlias(g *Generator, pkg string) {
 
 // Object is an interface abstracting the abilities shared by enums, messages, extensions and imported objects.
 type Object interface {
-	PackageName() string // The name we use in our output (a_b_c), possibly renamed for uniqueness.
+	GoImportPath() GoImportPath
 	TypeName() []string
-	File() *descriptor.FileDescriptorProto
-}
-
-// Each package name we generate must be unique. The package we're generating
-// gets its own name but every other package must have a unique name that does
-// not conflict in the code we generate.  These names are chosen globally (although
-// they don't have to be, it simplifies things to do them globally).
-func uniquePackageOf(fd *descriptor.FileDescriptorProto) string {
-	s, ok := uniquePackageName[fd]
-	if !ok {
-		log.Fatal("internal error: no package name defined for " + fd.GetName())
-	}
-	return s
+	File() *FileDescriptor
 }
 
 // Generator is the type whose methods generate the output, stored in the associated response structure.
@@ -562,18 +394,31 @@ type Generator struct {
 
 	Pkg map[string]string // The names under which we import support packages
 
-	packageName      string                     // What we're calling ourselves.
-	allFiles         []*FileDescriptor          // All files in the tree
-	allFilesByName   map[string]*FileDescriptor // All files by filename.
-	genFiles         []*FileDescriptor          // Those files we will generate output for.
-	file             *FileDescriptor            // The file we are compiling now.
-	usedPackages     map[string]bool            // Names of packages used in current file.
-	typeNameToObject map[string]Object          // Key is a fully-qualified name in input syntax.
-	init             []string                   // Lines to emit in the init function.
+	outputImportPath GoImportPath                   // Package we're generating code for.
+	allFiles         []*FileDescriptor              // All files in the tree
+	allFilesByName   map[string]*FileDescriptor     // All files by filename.
+	genFiles         []*FileDescriptor              // Those files we will generate output for.
+	file             *FileDescriptor                // The file we are compiling now.
+	packageNames     map[GoImportPath]GoPackageName // Imported package names in the current file.
+	usedPackages     map[GoImportPath]bool          // Packages used in current file.
+	usedPackageNames map[GoPackageName]bool         // Package names used in the current file.
+	addedImports     map[GoImportPath]bool          // Additional imports to emit.
+	typeNameToObject map[string]Object              // Key is a fully-qualified name in input syntax.
+	init             []string                       // Lines to emit in the init function.
 	indent           string
+	pathType         pathType // How to generate output filenames.
 	writeOutput      bool
+	annotateCode     bool                                       // whether to store annotations
+	annotations      []*descriptor.GeneratedCodeInfo_Annotation // annotations to store
 }
 
+type pathType int
+
+const (
+	pathTypeImport pathType = iota
+	pathTypeSourceRelative
+)
+
 // New creates a new generator and allocates the request and response protobufs.
 func New() *Generator {
 	g := new(Generator)
@@ -618,8 +463,21 @@ func (g *Generator) CommandLineParameters(parameter string) {
 			g.ImportPrefix = v
 		case "import_path":
 			g.PackageImportPath = v
+		case "paths":
+			switch v {
+			case "import":
+				g.pathType = pathTypeImport
+			case "source_relative":
+				g.pathType = pathTypeSourceRelative
+			default:
+				g.Fail(fmt.Sprintf(`Unknown path type %q: want "import" or "source_relative".`, v))
+			}
 		case "plugins":
 			pluginList = v
+		case "annotate_code":
+			if v == "true" {
+				g.annotateCode = true
+			}
 		default:
 			if len(k) > 0 && k[0] == 'M' {
 				g.ImportMap[k[1:]] = v
@@ -646,37 +504,49 @@ func (g *Generator) CommandLineParameters(parameter string) {
 // If its file is in a different package, it returns the package name we're using for this file, plus ".".
 // Otherwise it returns the empty string.
 func (g *Generator) DefaultPackageName(obj Object) string {
-	pkg := obj.PackageName()
-	if pkg == g.packageName {
+	importPath := obj.GoImportPath()
+	if importPath == g.outputImportPath {
 		return ""
 	}
-	return pkg + "."
+	return string(g.GoPackageName(importPath)) + "."
+}
+
+// GoPackageName returns the name used for a package.
+func (g *Generator) GoPackageName(importPath GoImportPath) GoPackageName {
+	if name, ok := g.packageNames[importPath]; ok {
+		return name
+	}
+	name := cleanPackageName(baseName(string(importPath)))
+	for i, orig := 1, name; g.usedPackageNames[name] || isGoPredeclaredIdentifier[string(name)]; i++ {
+		name = orig + GoPackageName(strconv.Itoa(i))
+	}
+	g.packageNames[importPath] = name
+	g.usedPackageNames[name] = true
+	return name
 }
 
-// For each input file, the unique package name to use, underscored.
-var uniquePackageName = make(map[*descriptor.FileDescriptorProto]string)
+// AddImport adds a package to the generated file's import section.
+// It returns the name used for the package.
+func (g *Generator) AddImport(importPath GoImportPath) GoPackageName {
+	g.addedImports[importPath] = true
+	return g.GoPackageName(importPath)
+}
 
-// Package names already registered.  Key is the name from the .proto file;
-// value is the name that appears in the generated code.
-var pkgNamesInUse = make(map[string]bool)
+var globalPackageNames = map[GoPackageName]bool{
+	"fmt":   true,
+	"math":  true,
+	"proto": true,
+}
 
-// Create and remember a guaranteed unique package name for this file descriptor.
-// Pkg is the candidate name.  If f is nil, it's a builtin package like "proto" and
-// has no file descriptor.
+// Create and remember a guaranteed unique package name. Pkg is the candidate name.
+// The FileDescriptor parameter is unused.
 func RegisterUniquePackageName(pkg string, f *FileDescriptor) string {
-	// Convert dots to underscores before finding a unique alias.
-	pkg = strings.Map(badToUnderscore, pkg)
-
-	for i, orig := 1, pkg; pkgNamesInUse[pkg]; i++ {
-		// It's a duplicate; must rename.
-		pkg = orig + strconv.Itoa(i)
+	name := cleanPackageName(pkg)
+	for i, orig := 1, name; globalPackageNames[name]; i++ {
+		name = orig + GoPackageName(strconv.Itoa(i))
 	}
-	// Install it.
-	pkgNamesInUse[pkg] = true
-	if f != nil {
-		uniquePackageName[f.FileDescriptorProto] = pkg
-	}
-	return pkg
+	globalPackageNames[name] = true
+	return string(name)
 }
 
 var isGoKeyword = map[string]bool{
@@ -707,97 +577,125 @@ var isGoKeyword = map[string]bool{
 	"var":         true,
 }
 
+var isGoPredeclaredIdentifier = map[string]bool{
+	"append":     true,
+	"bool":       true,
+	"byte":       true,
+	"cap":        true,
+	"close":      true,
+	"complex":    true,
+	"complex128": true,
+	"complex64":  true,
+	"copy":       true,
+	"delete":     true,
+	"error":      true,
+	"false":      true,
+	"float32":    true,
+	"float64":    true,
+	"imag":       true,
+	"int":        true,
+	"int16":      true,
+	"int32":      true,
+	"int64":      true,
+	"int8":       true,
+	"iota":       true,
+	"len":        true,
+	"make":       true,
+	"new":        true,
+	"nil":        true,
+	"panic":      true,
+	"print":      true,
+	"println":    true,
+	"real":       true,
+	"recover":    true,
+	"rune":       true,
+	"string":     true,
+	"true":       true,
+	"uint":       true,
+	"uint16":     true,
+	"uint32":     true,
+	"uint64":     true,
+	"uint8":      true,
+	"uintptr":    true,
+}
+
+func cleanPackageName(name string) GoPackageName {
+	name = strings.Map(badToUnderscore, name)
+	// Identifier must not be keyword or predeclared identifier: insert _.
+	if isGoKeyword[name] {
+		name = "_" + name
+	}
+	// Identifier must not begin with digit: insert _.
+	if r, _ := utf8.DecodeRuneInString(name); unicode.IsDigit(r) {
+		name = "_" + name
+	}
+	return GoPackageName(name)
+}
+
 // defaultGoPackage returns the package name to use,
 // derived from the import path of the package we're building code for.
-func (g *Generator) defaultGoPackage() string {
+func (g *Generator) defaultGoPackage() GoPackageName {
 	p := g.PackageImportPath
 	if i := strings.LastIndex(p, "/"); i >= 0 {
 		p = p[i+1:]
 	}
-	if p == "" {
-		return ""
-	}
-
-	p = strings.Map(badToUnderscore, p)
-	// Identifier must not be keyword: insert _.
-	if isGoKeyword[p] {
-		p = "_" + p
-	}
-	// Identifier must not begin with digit: insert _.
-	if r, _ := utf8.DecodeRuneInString(p); unicode.IsDigit(r) {
-		p = "_" + p
-	}
-	return p
+	return cleanPackageName(p)
 }
 
 // SetPackageNames sets the package name for this run.
 // The package name must agree across all files being generated.
 // It also defines unique package names for all imported files.
 func (g *Generator) SetPackageNames() {
-	// Register the name for this package.  It will be the first name
-	// registered so is guaranteed to be unmodified.
-	pkg, explicit := g.genFiles[0].goPackageName()
+	g.outputImportPath = g.genFiles[0].importPath
 
-	// Check all files for an explicit go_package option.
+	defaultPackageNames := make(map[GoImportPath]GoPackageName)
 	for _, f := range g.genFiles {
-		thisPkg, thisExplicit := f.goPackageName()
-		if thisExplicit {
-			if !explicit {
-				// Let this file's go_package option serve for all input files.
-				pkg, explicit = thisPkg, true
-			} else if thisPkg != pkg {
-				g.Fail("inconsistent package names:", thisPkg, pkg)
-			}
+		if _, p, ok := f.goPackageOption(); ok {
+			defaultPackageNames[f.importPath] = p
 		}
 	}
-
-	// If we don't have an explicit go_package option but we have an
-	// import path, use that.
-	if !explicit {
-		p := g.defaultGoPackage()
-		if p != "" {
-			pkg, explicit = p, true
+	for _, f := range g.genFiles {
+		if _, p, ok := f.goPackageOption(); ok {
+			// Source file: option go_package = "quux/bar";
+			f.packageName = p
+		} else if p, ok := defaultPackageNames[f.importPath]; ok {
+			// A go_package option in another file in the same package.
+			//
+			// This is a poor choice in general, since every source file should
+			// contain a go_package option. Supported mainly for historical
+			// compatibility.
+			f.packageName = p
+		} else if p := g.defaultGoPackage(); p != "" {
+			// Command-line: import_path=quux/bar.
+			//
+			// The import_path flag sets a package name for files which don't
+			// contain a go_package option.
+			f.packageName = p
+		} else if p := f.GetPackage(); p != "" {
+			// Source file: package quux.bar;
+			f.packageName = cleanPackageName(p)
+		} else {
+			// Source filename.
+			f.packageName = cleanPackageName(baseName(f.GetName()))
 		}
 	}
 
-	// If there was no go_package and no import path to use,
-	// double-check that all the inputs have the same implicit
-	// Go package name.
-	if !explicit {
-		for _, f := range g.genFiles {
-			thisPkg, _ := f.goPackageName()
-			if thisPkg != pkg {
-				g.Fail("inconsistent package names:", thisPkg, pkg)
-			}
+	// Check that all files have a consistent package name and import path.
+	for _, f := range g.genFiles[1:] {
+		if a, b := g.genFiles[0].importPath, f.importPath; a != b {
+			g.Fail(fmt.Sprintf("inconsistent package import paths: %v, %v", a, b))
+		}
+		if a, b := g.genFiles[0].packageName, f.packageName; a != b {
+			g.Fail(fmt.Sprintf("inconsistent package names: %v, %v", a, b))
 		}
 	}
 
-	g.packageName = RegisterUniquePackageName(pkg, g.genFiles[0])
-
-	// Register the support package names. They might collide with the
-	// name of a package we import.
+	// Names of support packages. These never vary (if there are conflicts,
+	// we rename the conflicting package), so this could be removed someday.
 	g.Pkg = map[string]string{
-		"fmt":   RegisterUniquePackageName("fmt", nil),
-		"math":  RegisterUniquePackageName("math", nil),
-		"proto": RegisterUniquePackageName("proto", nil),
-	}
-
-AllFiles:
-	for _, f := range g.allFiles {
-		for _, genf := range g.genFiles {
-			if f == genf {
-				// In this package already.
-				uniquePackageName[f.FileDescriptorProto] = g.packageName
-				continue AllFiles
-			}
-		}
-		// The file is a dependency, so we want to ignore its go_package option
-		// because that is only relevant for its specific generated output.
-		pkg := f.GetPackage()
-		if pkg == "" {
-			pkg = baseName(*f.Name)
-		}
-		RegisterUniquePackageName(pkg, f)
+		"fmt":   "fmt",
+		"math":  "math",
+		"proto": "proto",
 	}
 }
 
@@ -807,27 +705,51 @@ AllFiles:
 func (g *Generator) WrapTypes() {
 	g.allFiles = make([]*FileDescriptor, 0, len(g.Request.ProtoFile))
 	g.allFilesByName = make(map[string]*FileDescriptor, len(g.allFiles))
+	genFileNames := make(map[string]bool)
+	for _, n := range g.Request.FileToGenerate {
+		genFileNames[n] = true
+	}
 	for _, f := range g.Request.ProtoFile {
-		// We must wrap the descriptors before we wrap the enums
-		descs := wrapDescriptors(f)
-		g.buildNestedDescriptors(descs)
-		enums := wrapEnumDescriptors(f, descs)
-		g.buildNestedEnums(descs, enums)
-		exts := wrapExtensions(f)
 		fd := &FileDescriptor{
 			FileDescriptorProto: f,
-			desc:                descs,
-			enum:                enums,
-			ext:                 exts,
 			exported:            make(map[Object][]symbol),
 			proto3:              fileIsProto3(f),
 		}
+		// The import path may be set in a number of ways.
+		if substitution, ok := g.ImportMap[f.GetName()]; ok {
+			// Command-line: M=foo.proto=quux/bar.
+			//
+			// Explicit mapping of source file to import path.
+			fd.importPath = GoImportPath(substitution)
+		} else if genFileNames[f.GetName()] && g.PackageImportPath != "" {
+			// Command-line: import_path=quux/bar.
+			//
+			// The import_path flag sets the import path for every file that
+			// we generate code for.
+			fd.importPath = GoImportPath(g.PackageImportPath)
+		} else if p, _, _ := fd.goPackageOption(); p != "" {
+			// Source file: option go_package = "quux/bar";
+			//
+			// The go_package option sets the import path. Most users should use this.
+			fd.importPath = p
+		} else {
+			// Source filename.
+			//
+			// Last resort when nothing else is available.
+			fd.importPath = GoImportPath(path.Dir(f.GetName()))
+		}
+		// We must wrap the descriptors before we wrap the enums
+		fd.desc = wrapDescriptors(fd)
+		g.buildNestedDescriptors(fd.desc)
+		fd.enum = wrapEnumDescriptors(fd, fd.desc)
+		g.buildNestedEnums(fd.desc, fd.enum)
+		fd.ext = wrapExtensions(fd)
 		extractComments(fd)
 		g.allFiles = append(g.allFiles, fd)
 		g.allFilesByName[f.GetName()] = fd
 	}
 	for _, fd := range g.allFiles {
-		fd.imp = wrapImported(fd.FileDescriptorProto, g)
+		fd.imp = wrapImported(fd, g)
 	}
 
 	g.genFiles = make([]*FileDescriptor, 0, len(g.Request.FileToGenerate))
@@ -836,7 +758,6 @@ func (g *Generator) WrapTypes() {
 		if fd == nil {
 			g.Fail("could not find file named", fileName)
 		}
-		fd.index = len(g.genFiles)
 		g.genFiles = append(g.genFiles, fd)
 	}
 }
@@ -873,7 +794,7 @@ func (g *Generator) buildNestedEnums(descs []*Descriptor, enums []*EnumDescripto
 }
 
 // Construct the Descriptor
-func newDescriptor(desc *descriptor.DescriptorProto, parent *Descriptor, file *descriptor.FileDescriptorProto, index int) *Descriptor {
+func newDescriptor(desc *descriptor.DescriptorProto, parent *Descriptor, file *FileDescriptor, index int) *Descriptor {
 	d := &Descriptor{
 		common:          common{file},
 		DescriptorProto: desc,
@@ -910,7 +831,7 @@ func newDescriptor(desc *descriptor.DescriptorProto, parent *Descriptor, file *d
 }
 
 // Return a slice of all the Descriptors defined within this file
-func wrapDescriptors(file *descriptor.FileDescriptorProto) []*Descriptor {
+func wrapDescriptors(file *FileDescriptor) []*Descriptor {
 	sl := make([]*Descriptor, 0, len(file.MessageType)+10)
 	for i, desc := range file.MessageType {
 		sl = wrapThisDescriptor(sl, desc, nil, file, i)
@@ -919,7 +840,7 @@ func wrapDescriptors(file *descriptor.FileDescriptorProto) []*Descriptor {
 }
 
 // Wrap this Descriptor, recursively
-func wrapThisDescriptor(sl []*Descriptor, desc *descriptor.DescriptorProto, parent *Descriptor, file *descriptor.FileDescriptorProto, index int) []*Descriptor {
+func wrapThisDescriptor(sl []*Descriptor, desc *descriptor.DescriptorProto, parent *Descriptor, file *FileDescriptor, index int) []*Descriptor {
 	sl = append(sl, newDescriptor(desc, parent, file, index))
 	me := sl[len(sl)-1]
 	for i, nested := range desc.NestedType {
@@ -929,7 +850,7 @@ func wrapThisDescriptor(sl []*Descriptor, desc *descriptor.DescriptorProto, pare
 }
 
 // Construct the EnumDescriptor
-func newEnumDescriptor(desc *descriptor.EnumDescriptorProto, parent *Descriptor, file *descriptor.FileDescriptorProto, index int) *EnumDescriptor {
+func newEnumDescriptor(desc *descriptor.EnumDescriptorProto, parent *Descriptor, file *FileDescriptor, index int) *EnumDescriptor {
 	ed := &EnumDescriptor{
 		common:              common{file},
 		EnumDescriptorProto: desc,
@@ -945,7 +866,7 @@ func newEnumDescriptor(desc *descriptor.EnumDescriptorProto, parent *Descriptor,
 }
 
 // Return a slice of all the EnumDescriptors defined within this file
-func wrapEnumDescriptors(file *descriptor.FileDescriptorProto, descs []*Descriptor) []*EnumDescriptor {
+func wrapEnumDescriptors(file *FileDescriptor, descs []*Descriptor) []*EnumDescriptor {
 	sl := make([]*EnumDescriptor, 0, len(file.EnumType)+10)
 	// Top-level enums.
 	for i, enum := range file.EnumType {
@@ -961,7 +882,7 @@ func wrapEnumDescriptors(file *descriptor.FileDescriptorProto, descs []*Descript
 }
 
 // Return a slice of all the top-level ExtensionDescriptors defined within this file.
-func wrapExtensions(file *descriptor.FileDescriptorProto) []*ExtensionDescriptor {
+func wrapExtensions(file *FileDescriptor) []*ExtensionDescriptor {
 	var sl []*ExtensionDescriptor
 	for _, field := range file.Extension {
 		sl = append(sl, &ExtensionDescriptor{common{file}, field, nil})
@@ -970,7 +891,7 @@ func wrapExtensions(file *descriptor.FileDescriptorProto) []*ExtensionDescriptor
 }
 
 // Return a slice of all the types that are publicly imported into this file.
-func wrapImported(file *descriptor.FileDescriptorProto, g *Generator) (sl []*ImportedDescriptor) {
+func wrapImported(file *FileDescriptor, g *Generator) (sl []*ImportedDescriptor) {
 	for _, index := range file.PublicDependency {
 		df := g.fileByName(file.Dependency[index])
 		for _, d := range df.desc {
@@ -1034,71 +955,87 @@ func (g *Generator) ObjectNamed(typeName string) Object {
 	if !ok {
 		g.Fail("can't find object with type", typeName)
 	}
+	return o
+}
 
-	// If the file of this object isn't a direct dependency of the current file,
-	// or in the current file, then this object has been publicly imported into
-	// a dependency of the current file.
-	// We should return the ImportedDescriptor object for it instead.
-	direct := *o.File().Name == *g.file.Name
-	if !direct {
-		for _, dep := range g.file.Dependency {
-			if *g.fileByName(dep).Name == *o.File().Name {
-				direct = true
-				break
-			}
-		}
-	}
-	if !direct {
-		found := false
-	Loop:
-		for _, dep := range g.file.Dependency {
-			df := g.fileByName(*g.fileByName(dep).Name)
-			for _, td := range df.imp {
-				if td.o == o {
-					// Found it!
-					o = td
-					found = true
-					break Loop
-				}
-			}
-		}
-		if !found {
-			log.Printf("protoc-gen-go: WARNING: failed finding publicly imported dependency for %v, used in %v", typeName, *g.file.Name)
-		}
+// AnnotatedAtoms is a list of atoms (as consumed by P) that records the file name and proto AST path from which they originated.
+type AnnotatedAtoms struct {
+	source string
+	path   string
+	atoms  []interface{}
+}
+
+// Annotate records the file name and proto AST path of a list of atoms
+// so that a later call to P can emit a link from each atom to its origin.
+func Annotate(file *FileDescriptor, path string, atoms ...interface{}) *AnnotatedAtoms {
+	return &AnnotatedAtoms{source: *file.Name, path: path, atoms: atoms}
+}
+
+// printAtom prints the (atomic, non-annotation) argument to the generated output.
+func (g *Generator) printAtom(v interface{}) {
+	switch v := v.(type) {
+	case string:
+		g.WriteString(v)
+	case *string:
+		g.WriteString(*v)
+	case bool:
+		fmt.Fprint(g, v)
+	case *bool:
+		fmt.Fprint(g, *v)
+	case int:
+		fmt.Fprint(g, v)
+	case *int32:
+		fmt.Fprint(g, *v)
+	case *int64:
+		fmt.Fprint(g, *v)
+	case float64:
+		fmt.Fprint(g, v)
+	case *float64:
+		fmt.Fprint(g, *v)
+	case GoPackageName:
+		g.WriteString(string(v))
+	case GoImportPath:
+		g.WriteString(strconv.Quote(string(v)))
+	default:
+		g.Fail(fmt.Sprintf("unknown type in printer: %T", v))
 	}
-
-	return o
 }
 
 // P prints the arguments to the generated output.  It handles strings and int32s, plus
-// handling indirections because they may be *string, etc.
+// handling indirections because they may be *string, etc.  Any inputs of type AnnotatedAtoms may emit
+// annotations in a .meta file in addition to outputting the atoms themselves (if g.annotateCode
+// is true).
 func (g *Generator) P(str ...interface{}) {
 	if !g.writeOutput {
 		return
 	}
 	g.WriteString(g.indent)
 	for _, v := range str {
-		switch s := v.(type) {
-		case string:
-			g.WriteString(s)
-		case *string:
-			g.WriteString(*s)
-		case bool:
-			fmt.Fprintf(g, "%t", s)
-		case *bool:
-			fmt.Fprintf(g, "%t", *s)
-		case int:
-			fmt.Fprintf(g, "%d", s)
-		case *int32:
-			fmt.Fprintf(g, "%d", *s)
-		case *int64:
-			fmt.Fprintf(g, "%d", *s)
-		case float64:
-			fmt.Fprintf(g, "%g", s)
-		case *float64:
-			fmt.Fprintf(g, "%g", *s)
+		switch v := v.(type) {
+		case *AnnotatedAtoms:
+			begin := int32(g.Len())
+			for _, v := range v.atoms {
+				g.printAtom(v)
+			}
+			if g.annotateCode {
+				end := int32(g.Len())
+				var path []int32
+				for _, token := range strings.Split(v.path, ",") {
+					val, err := strconv.ParseInt(token, 10, 32)
+					if err != nil {
+						g.Fail("could not parse proto AST path: ", err.Error())
+					}
+					path = append(path, int32(val))
+				}
+				g.annotations = append(g.annotations, &descriptor.GeneratedCodeInfo_Annotation{
+					Path:       path,
+					SourceFile: &v.source,
+					Begin:      &begin,
+					End:        &end,
+				})
+			}
 		default:
-			g.Fail(fmt.Sprintf("unknown type in printer: %T", v))
+			g.printAtom(v)
 		}
 	}
 	g.WriteByte('\n')
@@ -1135,15 +1072,25 @@ func (g *Generator) GenerateAllFiles() {
 	}
 	for _, file := range g.allFiles {
 		g.Reset()
+		g.annotations = nil
 		g.writeOutput = genFileMap[file]
 		g.generate(file)
 		if !g.writeOutput {
 			continue
 		}
+		fname := file.goFileName(g.pathType)
 		g.Response.File = append(g.Response.File, &plugin.CodeGeneratorResponse_File{
-			Name:    proto.String(file.goFileName()),
+			Name:    proto.String(fname),
 			Content: proto.String(g.String()),
 		})
+		if g.annotateCode {
+			// Store the generated code annotations in text, as the protoc plugin protocol requires that
+			// strings contain valid UTF-8.
+			g.Response.File = append(g.Response.File, &plugin.CodeGeneratorResponse_File{
+				Name:    proto.String(file.goFileName(g.pathType) + ".meta"),
+				Content: proto.String(proto.CompactTextString(&descriptor.GeneratedCodeInfo{Annotation: g.annotations})),
+			})
+		}
 	}
 }
 
@@ -1154,32 +1101,25 @@ func (g *Generator) runPlugins(file *FileDescriptor) {
 	}
 }
 
-// FileOf return the FileDescriptor for this FileDescriptorProto.
-func (g *Generator) FileOf(fd *descriptor.FileDescriptorProto) *FileDescriptor {
-	for _, file := range g.allFiles {
-		if file.FileDescriptorProto == fd {
-			return file
-		}
-	}
-	g.Fail("could not find file in table:", fd.GetName())
-	return nil
-}
-
 // Fill the response protocol buffer with the generated output for all the files we're
 // supposed to generate.
 func (g *Generator) generate(file *FileDescriptor) {
-	g.file = g.FileOf(file.FileDescriptorProto)
-	g.usedPackages = make(map[string]bool)
-
-	if g.file.index == 0 {
-		// For one file in the package, assert version compatibility.
-		g.P("// This is a compile-time assertion to ensure that this generated file")
-		g.P("// is compatible with the proto package it is being compiled against.")
-		g.P("// A compilation error at this line likely means your copy of the")
-		g.P("// proto package needs to be updated.")
-		g.P("const _ = ", g.Pkg["proto"], ".ProtoPackageIsVersion", generatedCodeVersion, " // please upgrade the proto package")
-		g.P()
-	}
+	g.file = file
+	g.usedPackages = make(map[GoImportPath]bool)
+	g.packageNames = make(map[GoImportPath]GoPackageName)
+	g.usedPackageNames = make(map[GoPackageName]bool)
+	g.addedImports = make(map[GoImportPath]bool)
+	for name := range globalPackageNames {
+		g.usedPackageNames[name] = true
+	}
+
+	g.P("// This is a compile-time assertion to ensure that this generated file")
+	g.P("// is compatible with the proto package it is being compiled against.")
+	g.P("// A compilation error at this line likely means your copy of the")
+	g.P("// proto package needs to be updated.")
+	g.P("const _ = ", g.Pkg["proto"], ".ProtoPackageIsVersion", generatedCodeVersion, " // please upgrade the proto package")
+	g.P()
+
 	for _, td := range g.file.imp {
 		g.generateImported(td)
 	}
@@ -1197,92 +1137,89 @@ func (g *Generator) generate(file *FileDescriptor) {
 		g.generateExtension(ext)
 	}
 	g.generateInitFunction()
+	g.generateFileDescriptor(file)
 
 	// Run the plugins before the imports so we know which imports are necessary.
 	g.runPlugins(file)
 
-	g.generateFileDescriptor(file)
-
 	// Generate header and imports last, though they appear first in the output.
 	rem := g.Buffer
+	remAnno := g.annotations
 	g.Buffer = new(bytes.Buffer)
+	g.annotations = nil
 	g.generateHeader()
 	g.generateImports()
 	if !g.writeOutput {
 		return
 	}
+	// Adjust the offsets for annotations displaced by the header and imports.
+	for _, anno := range remAnno {
+		*anno.Begin += int32(g.Len())
+		*anno.End += int32(g.Len())
+		g.annotations = append(g.annotations, anno)
+	}
 	g.Write(rem.Bytes())
 
-	// Reformat generated code.
+	// Reformat generated code and patch annotation locations.
 	fset := token.NewFileSet()
-	raw := g.Bytes()
-	ast, err := parser.ParseFile(fset, "", g, parser.ParseComments)
+	original := g.Bytes()
+	if g.annotateCode {
+		// make a copy independent of g; we'll need it after Reset.
+		original = append([]byte(nil), original...)
+	}
+	fileAST, err := parser.ParseFile(fset, "", original, parser.ParseComments)
 	if err != nil {
 		// Print out the bad code with line numbers.
 		// This should never happen in practice, but it can while changing generated code,
 		// so consider this a debugging aid.
 		var src bytes.Buffer
-		s := bufio.NewScanner(bytes.NewReader(raw))
+		s := bufio.NewScanner(bytes.NewReader(original))
 		for line := 1; s.Scan(); line++ {
 			fmt.Fprintf(&src, "%5d\t%s\n", line, s.Bytes())
 		}
 		g.Fail("bad Go source code was generated:", err.Error(), "\n"+src.String())
 	}
+	ast.SortImports(fset, fileAST)
 	g.Reset()
-	err = (&printer.Config{Mode: printer.TabIndent | printer.UseSpaces, Tabwidth: 8}).Fprint(g, fset, ast)
+	err = (&printer.Config{Mode: printer.TabIndent | printer.UseSpaces, Tabwidth: 8}).Fprint(g, fset, fileAST)
 	if err != nil {
 		g.Fail("generated Go source code could not be reformatted:", err.Error())
 	}
+	if g.annotateCode {
+		m, err := remap.Compute(original, g.Bytes())
+		if err != nil {
+			g.Fail("formatted generated Go source code could not be mapped back to the original code:", err.Error())
+		}
+		for _, anno := range g.annotations {
+			new, ok := m.Find(int(*anno.Begin), int(*anno.End))
+			if !ok {
+				g.Fail("span in formatted generated Go source code could not be mapped back to the original code")
+			}
+			*anno.Begin = int32(new.Pos)
+			*anno.End = int32(new.End)
+		}
+	}
 }
 
 // Generate the header, including package definition
 func (g *Generator) generateHeader() {
-	g.P("// Code generated by protoc-gen-go.")
-	g.P("// source: ", g.file.Name)
-	g.P("// DO NOT EDIT!")
-	g.P()
-
-	name := g.file.PackageName()
-
-	if g.file.index == 0 {
-		// Generate package docs for the first file in the package.
-		g.P("/*")
-		g.P("Package ", name, " is a generated protocol buffer package.")
-		g.P()
-		if loc, ok := g.file.comments[strconv.Itoa(packagePath)]; ok {
-			// not using g.PrintComments because this is a /* */ comment block.
-			text := strings.TrimSuffix(loc.GetLeadingComments(), "\n")
-			for _, line := range strings.Split(text, "\n") {
-				line = strings.TrimPrefix(line, " ")
-				// ensure we don't escape from the block comment
-				line = strings.Replace(line, "*/", "* /", -1)
-				g.P(line)
-			}
-			g.P()
-		}
-		var topMsgs []string
-		g.P("It is generated from these files:")
-		for _, f := range g.genFiles {
-			g.P("\t", f.Name)
-			for _, msg := range f.desc {
-				if msg.parent != nil {
-					continue
-				}
-				topMsgs = append(topMsgs, CamelCaseSlice(msg.TypeName()))
-			}
-		}
-		g.P()
-		g.P("It has these top-level messages:")
-		for _, msg := range topMsgs {
-			g.P("\t", msg)
-		}
-		g.P("*/")
+	g.P("// Code generated by protoc-gen-go. DO NOT EDIT.")
+	if g.file.GetOptions().GetDeprecated() {
+		g.P("// ", g.file.Name, " is a deprecated file.")
+	} else {
+		g.P("// source: ", g.file.Name)
 	}
-
-	g.P("package ", name)
+	g.P()
+	g.PrintComments(strconv.Itoa(packagePath))
+	g.P()
+	g.P("package ", g.file.packageName)
 	g.P()
 }
 
+// deprecationComment is the standard comment added to deprecated
+// messages, fields, enums, and enum values.
+var deprecationComment = "// Deprecated: Do not use."
+
 // PrintComments prints any comments from the source .proto file.
 // The path is a comma-separated list of integers.
 // It returns an indication of whether any comments were printed.
@@ -1291,16 +1228,28 @@ func (g *Generator) PrintComments(path string) bool {
 	if !g.writeOutput {
 		return false
 	}
-	if loc, ok := g.file.comments[path]; ok {
-		text := strings.TrimSuffix(loc.GetLeadingComments(), "\n")
-		for _, line := range strings.Split(text, "\n") {
-			g.P("// ", strings.TrimPrefix(line, " "))
-		}
+	if c, ok := g.makeComments(path); ok {
+		g.P(c)
 		return true
 	}
 	return false
 }
 
+// makeComments generates the comment string for the field, no "\n" at the end
+func (g *Generator) makeComments(path string) (string, bool) {
+	loc, ok := g.file.comments[path]
+	if !ok {
+		return "", false
+	}
+	w := new(bytes.Buffer)
+	nl := ""
+	for _, line := range strings.Split(strings.TrimSuffix(loc.GetLeadingComments(), "\n"), "\n") {
+		fmt.Fprintf(w, "%s//%s", nl, line)
+		nl = "\n"
+	}
+	return w.String(), true
+}
+
 func (g *Generator) fileByName(filename string) *FileDescriptor {
 	return g.allFilesByName[filename]
 }
@@ -1317,39 +1266,45 @@ func (g *Generator) weak(i int32) bool {
 
 // Generate the imports
 func (g *Generator) generateImports() {
-	// We almost always need a proto import.  Rather than computing when we
-	// do, which is tricky when there's a plugin, just import it and
-	// reference it later. The same argument applies to the fmt and math packages.
-	g.P("import " + g.Pkg["proto"] + " " + strconv.Quote(g.ImportPrefix+"github.com/golang/protobuf/proto"))
-	g.P("import " + g.Pkg["fmt"] + ` "fmt"`)
-	g.P("import " + g.Pkg["math"] + ` "math"`)
+	imports := make(map[GoImportPath]GoPackageName)
 	for i, s := range g.file.Dependency {
 		fd := g.fileByName(s)
+		importPath := fd.importPath
 		// Do not import our own package.
-		if fd.PackageName() == g.packageName {
+		if importPath == g.file.importPath {
 			continue
 		}
-		filename := fd.goFileName()
-		// By default, import path is the dirname of the Go filename.
-		importPath := path.Dir(filename)
-		if substitution, ok := g.ImportMap[s]; ok {
-			importPath = substitution
-		}
-		importPath = g.ImportPrefix + importPath
-		// Skip weak imports.
+		// Do not import weak imports.
 		if g.weak(int32(i)) {
-			g.P("// skipping weak import ", fd.PackageName(), " ", strconv.Quote(importPath))
+			continue
+		}
+		// Do not import a package twice.
+		if _, ok := imports[importPath]; ok {
 			continue
 		}
 		// We need to import all the dependencies, even if we don't reference them,
 		// because other code and tools depend on having the full transitive closure
 		// of protocol buffer types in the binary.
-		pname := fd.PackageName()
-		if _, ok := g.usedPackages[pname]; !ok {
-			pname = "_"
+		packageName := g.GoPackageName(importPath)
+		if _, ok := g.usedPackages[importPath]; !ok {
+			packageName = "_"
 		}
-		g.P("import ", pname, " ", strconv.Quote(importPath))
+		imports[importPath] = packageName
+	}
+	for importPath := range g.addedImports {
+		imports[importPath] = g.GoPackageName(importPath)
 	}
+	// We almost always need a proto import.  Rather than computing when we
+	// do, which is tricky when there's a plugin, just import it and
+	// reference it later. The same argument applies to the fmt and math packages.
+	g.P("import (")
+	g.P(g.Pkg["fmt"] + ` "fmt"`)
+	g.P(g.Pkg["math"] + ` "math"`)
+	g.P(g.Pkg["proto"]+" ", GoImportPath(g.ImportPrefix)+"github.com/golang/protobuf/proto")
+	for importPath, packageName := range imports {
+		g.P(packageName, " ", GoImportPath(g.ImportPrefix)+importPath)
+	}
+	g.P(")")
 	g.P()
 	// TODO: may need to worry about uniqueness across plugins
 	for _, p := range plugins {
@@ -1364,26 +1319,19 @@ func (g *Generator) generateImports() {
 }
 
 func (g *Generator) generateImported(id *ImportedDescriptor) {
-	// Don't generate public import symbols for files that we are generating
-	// code for, since those symbols will already be in this package.
-	// We can't simply avoid creating the ImportedDescriptor objects,
-	// because g.genFiles isn't populated at that stage.
-	tn := id.TypeName()
-	sn := tn[len(tn)-1]
-	df := g.FileOf(id.o.File())
+	df := id.o.File()
 	filename := *df.Name
-	for _, fd := range g.genFiles {
-		if *fd.Name == filename {
-			g.P("// Ignoring public import of ", sn, " from ", filename)
-			g.P()
-			return
-		}
+	if df.importPath == g.file.importPath {
+		// Don't generate type aliases for files in the same Go package as this one.
+		return
 	}
-	g.P("// ", sn, " from public import ", filename)
-	g.usedPackages[df.PackageName()] = true
+	if !supportTypeAliases {
+		g.Fail(fmt.Sprintf("%s: public imports require at least go1.9", filename))
+	}
+	g.usedPackages[df.importPath] = true
 
 	for _, sym := range df.exported[id.o] {
-		sym.GenerateAlias(g, df.PackageName())
+		sym.GenerateAlias(g, filename, g.GoPackageName(df.importPath))
 	}
 
 	g.P()
@@ -1397,22 +1345,30 @@ func (g *Generator) generateEnum(enum *EnumDescriptor) {
 	ccTypeName := CamelCaseSlice(typeName)
 	ccPrefix := enum.prefix()
 
+	deprecatedEnum := ""
+	if enum.GetOptions().GetDeprecated() {
+		deprecatedEnum = deprecationComment
+	}
 	g.PrintComments(enum.path)
-	g.P("type ", ccTypeName, " int32")
+	g.P("type ", Annotate(enum.file, enum.path, ccTypeName), " int32", deprecatedEnum)
 	g.file.addExport(enum, enumSymbol{ccTypeName, enum.proto3()})
 	g.P("const (")
-	g.In()
 	for i, e := range enum.Value {
-		g.PrintComments(fmt.Sprintf("%s,%d,%d", enum.path, enumValuePath, i))
+		etorPath := fmt.Sprintf("%s,%d,%d", enum.path, enumValuePath, i)
+		g.PrintComments(etorPath)
+
+		deprecatedValue := ""
+		if e.GetOptions().GetDeprecated() {
+			deprecatedValue = deprecationComment
+		}
 
 		name := ccPrefix + *e.Name
-		g.P(name, " ", ccTypeName, " = ", e.Number)
+		g.P(Annotate(enum.file, etorPath, name), " ", ccTypeName, " = ", e.Number, " ", deprecatedValue)
 		g.file.addExport(enum, constOrVarSymbol{name, "const", ccTypeName})
 	}
-	g.Out()
 	g.P(")")
+	g.P()
 	g.P("var ", ccTypeName, "_name = map[int32]string{")
-	g.In()
 	generated := make(map[int32]bool) // avoid duplicate values
 	for _, e := range enum.Value {
 		duplicate := ""
@@ -1422,45 +1378,39 @@ func (g *Generator) generateEnum(enum *EnumDescriptor) {
 		g.P(duplicate, e.Number, ": ", strconv.Quote(*e.Name), ",")
 		generated[*e.Number] = true
 	}
-	g.Out()
 	g.P("}")
+	g.P()
 	g.P("var ", ccTypeName, "_value = map[string]int32{")
-	g.In()
 	for _, e := range enum.Value {
 		g.P(strconv.Quote(*e.Name), ": ", e.Number, ",")
 	}
-	g.Out()
 	g.P("}")
+	g.P()
 
 	if !enum.proto3() {
 		g.P("func (x ", ccTypeName, ") Enum() *", ccTypeName, " {")
-		g.In()
 		g.P("p := new(", ccTypeName, ")")
 		g.P("*p = x")
 		g.P("return p")
-		g.Out()
 		g.P("}")
+		g.P()
 	}
 
 	g.P("func (x ", ccTypeName, ") String() string {")
-	g.In()
 	g.P("return ", g.Pkg["proto"], ".EnumName(", ccTypeName, "_name, int32(x))")
-	g.Out()
 	g.P("}")
+	g.P()
 
 	if !enum.proto3() {
 		g.P("func (x *", ccTypeName, ") UnmarshalJSON(data []byte) error {")
-		g.In()
 		g.P("value, err := ", g.Pkg["proto"], ".UnmarshalJSONEnum(", ccTypeName, `_value, data, "`, ccTypeName, `")`)
 		g.P("if err != nil {")
-		g.In()
 		g.P("return err")
-		g.Out()
 		g.P("}")
 		g.P("*x = ", ccTypeName, "(value)")
 		g.P("return nil")
-		g.Out()
 		g.P("}")
+		g.P()
 	}
 
 	var indexes []string
@@ -1469,17 +1419,22 @@ func (g *Generator) generateEnum(enum *EnumDescriptor) {
 		indexes = append([]string{strconv.Itoa(m.index)}, indexes...)
 	}
 	indexes = append(indexes, strconv.Itoa(enum.index))
-	g.P("func (", ccTypeName, ") EnumDescriptor() ([]byte, []int) { return ", g.file.VarName(), ", []int{", strings.Join(indexes, ", "), "} }")
+	g.P("func (", ccTypeName, ") EnumDescriptor() ([]byte, []int) {")
+	g.P("return ", g.file.VarName(), ", []int{", strings.Join(indexes, ", "), "}")
+	g.P("}")
+	g.P()
 	if enum.file.GetPackage() == "google.protobuf" && enum.GetName() == "NullValue" {
 		g.P("func (", ccTypeName, `) XXX_WellKnownType() string { return "`, enum.GetName(), `" }`)
+		g.P()
 	}
 
-	g.P()
+	g.generateEnumRegistration(enum)
 }
 
 // The tag is a string like "varint,2,opt,name=fieldname,def=7" that
 // identifies details of the field for the protocol buffer marshaling and unmarshaling
 // code.  The fields are:
+//
 //	wire encoding
 //	protocol tag number
 //	opt,req,rep for optional, required, or repeated
@@ -1488,6 +1443,7 @@ func (g *Generator) generateEnum(enum *EnumDescriptor) {
 //	enum= the name of the enum type if it is an enum-typed field.
 //	proto3 if this field is in a proto3 message
 //	def= string representation of the default value, if any.
+//
 // The default value must be in a representation that can be used at run-time
 // to generate the default value. Thus bools become 0 and 1, for instance.
 func (g *Generator) goTag(message *Descriptor, field *descriptor.FieldDescriptorProto, wiretype string) string {
@@ -1531,12 +1487,24 @@ func (g *Generator) goTag(message *Descriptor, field *descriptor.FieldDescriptor
 				g.Fail("unknown enum type", CamelCaseSlice(obj.TypeName()))
 			}
 			defaultValue = enum.integerValueAsString(defaultValue)
+		case descriptor.FieldDescriptorProto_TYPE_FLOAT:
+			if def := defaultValue; def != "inf" && def != "-inf" && def != "nan" {
+				if f, err := strconv.ParseFloat(defaultValue, 32); err == nil {
+					defaultValue = fmt.Sprint(float32(f))
+				}
+			}
+		case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
+			if def := defaultValue; def != "inf" && def != "-inf" && def != "nan" {
+				if f, err := strconv.ParseFloat(defaultValue, 64); err == nil {
+					defaultValue = fmt.Sprint(f)
+				}
+			}
 		}
 		defaultValue = ",def=" + defaultValue
 	}
 	enum := ""
 	if *field.Type == descriptor.FieldDescriptorProto_TYPE_ENUM {
-		// We avoid using obj.PackageName(), because we want to use the
+		// We avoid using obj.GoPackageName(), because we want to use the
 		// original (proto-world) package name.
 		obj := g.ObjectNamed(field.GetTypeName())
 		if id, ok := obj.(*ImportedDescriptor); ok {
@@ -1568,19 +1536,14 @@ func (g *Generator) goTag(message *Descriptor, field *descriptor.FieldDescriptor
 			name = name[i+1:]
 		}
 	}
-	if json := field.GetJsonName(); json != "" && json != name {
+	if json := field.GetJsonName(); field.Extendee == nil && json != "" && json != name {
 		// TODO: escaping might be needed, in which case
 		// perhaps this should be in its own "json" tag.
 		name += ",json=" + json
 	}
 	name = ",name=" + name
 	if message.proto3() {
-		// We only need the extra tag for []byte fields;
-		// no need to add noise for the others.
-		if *field.Type == descriptor.FieldDescriptorProto_TYPE_BYTES {
-			name += ",proto3"
-		}
-
+		name += ",proto3"
 	}
 	oneof := ""
 	if field.OneofIndex != nil {
@@ -1618,12 +1581,6 @@ func (g *Generator) TypeName(obj Object) string {
 	return g.DefaultPackageName(obj) + CamelCaseSlice(obj.TypeName())
 }
 
-// TypeNameWithPackage is like TypeName, but always includes the package
-// name even if the object is in our own package.
-func (g *Generator) TypeNameWithPackage(obj Object) string {
-	return obj.PackageName() + CamelCaseSlice(obj.TypeName())
-}
-
 // GoType returns a string representing the type name, and the wire type
 func (g *Generator) GoType(message *Descriptor, field *descriptor.FieldDescriptorProto) (typ string, wire string) {
 	// TODO: Options.
@@ -1683,11 +1640,16 @@ func (g *Generator) GoType(message *Descriptor, field *descriptor.FieldDescripto
 }
 
 func (g *Generator) RecordTypeUse(t string) {
-	if obj, ok := g.typeNameToObject[t]; ok {
-		// Call ObjectNamed to get the true object to record the use.
-		obj = g.ObjectNamed(t)
-		g.usedPackages[obj.PackageName()] = true
+	if _, ok := g.typeNameToObject[t]; !ok {
+		return
+	}
+	importPath := g.ObjectNamed(t).GoImportPath()
+	if importPath == g.outputImportPath {
+		// Don't record use of objects in our package.
+		return
 	}
+	g.AddImport(importPath)
+	g.usedPackages[importPath] = true
 }
 
 // Method names that may be generated.  Fields with these names get an
@@ -1726,256 +1688,294 @@ var wellKnownTypes = map[string]bool{
 	"BytesValue":  true,
 }
 
-// Generate the type and default constant definitions for this Descriptor.
-func (g *Generator) generateMessage(message *Descriptor) {
-	// The full type name
-	typeName := message.TypeName()
-	// The full type name, CamelCased.
-	ccTypeName := CamelCaseSlice(typeName)
-
-	usedNames := make(map[string]bool)
-	for _, n := range methodNames {
-		usedNames[n] = true
+// getterDefault finds the default value for the field to return from a getter,
+// regardless of if it's a built in default or explicit from the source. Returns e.g. "nil", `""`, "Default_MessageType_FieldName"
+func (g *Generator) getterDefault(field *descriptor.FieldDescriptorProto, goMessageType string) string {
+	if isRepeated(field) {
+		return "nil"
+	}
+	if def := field.GetDefaultValue(); def != "" {
+		defaultConstant := g.defaultConstantName(goMessageType, field.GetName())
+		if *field.Type != descriptor.FieldDescriptorProto_TYPE_BYTES {
+			return defaultConstant
+		}
+		return "append([]byte(nil), " + defaultConstant + "...)"
+	}
+	switch *field.Type {
+	case descriptor.FieldDescriptorProto_TYPE_BOOL:
+		return "false"
+	case descriptor.FieldDescriptorProto_TYPE_STRING:
+		return `""`
+	case descriptor.FieldDescriptorProto_TYPE_GROUP, descriptor.FieldDescriptorProto_TYPE_MESSAGE, descriptor.FieldDescriptorProto_TYPE_BYTES:
+		return "nil"
+	case descriptor.FieldDescriptorProto_TYPE_ENUM:
+		obj := g.ObjectNamed(field.GetTypeName())
+		var enum *EnumDescriptor
+		if id, ok := obj.(*ImportedDescriptor); ok {
+			// The enum type has been publicly imported.
+			enum, _ = id.o.(*EnumDescriptor)
+		} else {
+			enum, _ = obj.(*EnumDescriptor)
+		}
+		if enum == nil {
+			log.Printf("don't know how to generate getter for %s", field.GetName())
+			return "nil"
+		}
+		if len(enum.Value) == 0 {
+			return "0 // empty enum"
+		}
+		first := enum.Value[0].GetName()
+		return g.DefaultPackageName(obj) + enum.prefix() + first
+	default:
+		return "0"
 	}
-	fieldNames := make(map[*descriptor.FieldDescriptorProto]string)
-	fieldGetterNames := make(map[*descriptor.FieldDescriptorProto]string)
-	fieldTypes := make(map[*descriptor.FieldDescriptorProto]string)
-	mapFieldTypes := make(map[*descriptor.FieldDescriptorProto]string)
+}
 
-	oneofFieldName := make(map[int32]string)                           // indexed by oneof_index field of FieldDescriptorProto
-	oneofDisc := make(map[int32]string)                                // name of discriminator method
-	oneofTypeName := make(map[*descriptor.FieldDescriptorProto]string) // without star
-	oneofInsertPoints := make(map[int32]int)                           // oneof_index => offset of g.Buffer
+// defaultConstantName builds the name of the default constant from the message
+// type name and the untouched field name, e.g. "Default_MessageType_FieldName"
+func (g *Generator) defaultConstantName(goMessageType, protoFieldName string) string {
+	return "Default_" + goMessageType + "_" + CamelCase(protoFieldName)
+}
 
-	g.PrintComments(message.path)
-	g.P("type ", ccTypeName, " struct {")
-	g.In()
+// The different types of fields in a message and how to actually print them
+// Most of the logic for generateMessage is in the methods of these types.
+//
+// Note that the content of the field is irrelevant, a simpleField can contain
+// anything from a scalar to a group (which is just a message).
+//
+// Extension fields (and message sets) are however handled separately.
+//
+// simpleField - a field that is neiter weak nor oneof, possibly repeated
+// oneofField - field containing list of subfields:
+// - oneofSubField - a field within the oneof
 
-	// allocNames finds a conflict-free variation of the given strings,
-	// consistently mutating their suffixes.
-	// It returns the same number of strings.
-	allocNames := func(ns ...string) []string {
-	Loop:
-		for {
-			for _, n := range ns {
-				if usedNames[n] {
-					for i := range ns {
-						ns[i] += "_"
-					}
-					continue Loop
-				}
-			}
-			for _, n := range ns {
-				usedNames[n] = true
-			}
-			return ns
-		}
-	}
+// msgCtx contains the context for the generator functions.
+type msgCtx struct {
+	goName  string      // Go struct name of the message, e.g. MessageName
+	message *Descriptor // The descriptor for the message
+}
 
-	for i, field := range message.Field {
-		// Allocate the getter and the field at the same time so name
-		// collisions create field/method consistent names.
-		// TODO: This allocation occurs based on the order of the fields
-		// in the proto file, meaning that a change in the field
-		// ordering can change generated Method/Field names.
-		base := CamelCase(*field.Name)
-		ns := allocNames(base, "Get"+base)
-		fieldName, fieldGetterName := ns[0], ns[1]
-		typename, wiretype := g.GoType(message, field)
-		jsonName := *field.Name
-		tag := fmt.Sprintf("protobuf:%s json:%q", g.goTag(message, field, wiretype), jsonName+",omitempty")
+// fieldCommon contains data common to all types of fields.
+type fieldCommon struct {
+	goName     string // Go name of field, e.g. "FieldName" or "Descriptor_"
+	protoName  string // Name of field in proto language, e.g. "field_name" or "descriptor"
+	getterName string // Name of the getter, e.g. "GetFieldName" or "GetDescriptor_"
+	goType     string // The Go type as a string, e.g. "*int32" or "*OtherMessage"
+	tags       string // The tag string/annotation for the type, e.g. `protobuf:"varint,8,opt,name=region_id,json=regionId"`
+	fullPath   string // The full path of the field as used by Annotate etc, e.g. "4,0,2,0"
+}
 
-		fieldNames[field] = fieldName
-		fieldGetterNames[field] = fieldGetterName
+// getProtoName gets the proto name of a field, e.g. "field_name" or "descriptor".
+func (f *fieldCommon) getProtoName() string {
+	return f.protoName
+}
 
-		oneof := field.OneofIndex != nil
-		if oneof && oneofFieldName[*field.OneofIndex] == "" {
-			odp := message.OneofDecl[int(*field.OneofIndex)]
-			fname := allocNames(CamelCase(odp.GetName()))[0]
+// getGoType returns the go type of the field  as a string, e.g. "*int32".
+func (f *fieldCommon) getGoType() string {
+	return f.goType
+}
 
-			// This is the first field of a oneof we haven't seen before.
-			// Generate the union field.
-			com := g.PrintComments(fmt.Sprintf("%s,%d,%d", message.path, messageOneofPath, *field.OneofIndex))
-			if com {
-				g.P("//")
-			}
-			g.P("// Types that are valid to be assigned to ", fname, ":")
-			// Generate the rest of this comment later,
-			// when we've computed any disambiguation.
-			oneofInsertPoints[*field.OneofIndex] = g.Buffer.Len()
+// simpleField is not weak, not a oneof, not an extension. Can be required, optional or repeated.
+type simpleField struct {
+	fieldCommon
+	protoTypeName string                               // Proto type name, empty if primitive, e.g. ".google.protobuf.Duration"
+	protoType     descriptor.FieldDescriptorProto_Type // Actual type enum value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64
+	deprecated    string                               // Deprecation comment, if any, e.g. "// Deprecated: Do not use."
+	getterDef     string                               // Default for getters, e.g. "nil", `""` or "Default_MessageType_FieldName"
+	protoDef      string                               // Default value as defined in the proto file, e.g "yoshi" or "5"
+	comment       string                               // The full comment for the field, e.g. "// Useful information"
+}
 
-			dname := "is" + ccTypeName + "_" + fname
-			oneofFieldName[*field.OneofIndex] = fname
-			oneofDisc[*field.OneofIndex] = dname
-			tag := `protobuf_oneof:"` + odp.GetName() + `"`
-			g.P(fname, " ", dname, " `", tag, "`")
-		}
+// decl prints the declaration of the field in the struct (if any).
+func (f *simpleField) decl(g *Generator, mc *msgCtx) {
+	g.P(f.comment, Annotate(mc.message.file, f.fullPath, f.goName), "\t", f.goType, "\t`", f.tags, "`", f.deprecated)
+}
 
-		if *field.Type == descriptor.FieldDescriptorProto_TYPE_MESSAGE {
-			desc := g.ObjectNamed(field.GetTypeName())
-			if d, ok := desc.(*Descriptor); ok && d.GetOptions().GetMapEntry() {
-				// Figure out the Go types and tags for the key and value types.
-				keyField, valField := d.Field[0], d.Field[1]
-				keyType, keyWire := g.GoType(d, keyField)
-				valType, valWire := g.GoType(d, valField)
-				keyTag, valTag := g.goTag(d, keyField, keyWire), g.goTag(d, valField, valWire)
+// getter prints the getter for the field.
+func (f *simpleField) getter(g *Generator, mc *msgCtx) {
+	star := ""
+	tname := f.goType
+	if needsStar(f.protoType) && tname[0] == '*' {
+		tname = tname[1:]
+		star = "*"
+	}
+	if f.deprecated != "" {
+		g.P(f.deprecated)
+	}
+	g.P("func (m *", mc.goName, ") ", Annotate(mc.message.file, f.fullPath, f.getterName), "() "+tname+" {")
+	if f.getterDef == "nil" { // Simpler getter
+		g.P("if m != nil {")
+		g.P("return m." + f.goName)
+		g.P("}")
+		g.P("return nil")
+		g.P("}")
+		g.P()
+		return
+	}
+	if mc.message.proto3() {
+		g.P("if m != nil {")
+	} else {
+		g.P("if m != nil && m." + f.goName + " != nil {")
+	}
+	g.P("return " + star + "m." + f.goName)
+	g.P("}")
+	g.P("return ", f.getterDef)
+	g.P("}")
+	g.P()
+}
 
-				// We don't use stars, except for message-typed values.
-				// Message and enum types are the only two possibly foreign types used in maps,
-				// so record their use. They are not permitted as map keys.
-				keyType = strings.TrimPrefix(keyType, "*")
-				switch *valField.Type {
-				case descriptor.FieldDescriptorProto_TYPE_ENUM:
-					valType = strings.TrimPrefix(valType, "*")
-					g.RecordTypeUse(valField.GetTypeName())
-				case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-					g.RecordTypeUse(valField.GetTypeName())
-				default:
-					valType = strings.TrimPrefix(valType, "*")
-				}
+// setter prints the setter method of the field.
+func (f *simpleField) setter(g *Generator, mc *msgCtx) {
+	// No setter for regular fields yet
+}
 
-				typename = fmt.Sprintf("map[%s]%s", keyType, valType)
-				mapFieldTypes[field] = typename // record for the getter generation
+// getProtoDef returns the default value explicitly stated in the proto file, e.g "yoshi" or "5".
+func (f *simpleField) getProtoDef() string {
+	return f.protoDef
+}
 
-				tag += fmt.Sprintf(" protobuf_key:%s protobuf_val:%s", keyTag, valTag)
-			}
-		}
+// getProtoTypeName returns the protobuf type name for the field as returned by field.GetTypeName(), e.g. ".google.protobuf.Duration".
+func (f *simpleField) getProtoTypeName() string {
+	return f.protoTypeName
+}
 
-		fieldTypes[field] = typename
+// getProtoType returns the *field.Type value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64.
+func (f *simpleField) getProtoType() descriptor.FieldDescriptorProto_Type {
+	return f.protoType
+}
 
-		if oneof {
-			tname := ccTypeName + "_" + fieldName
-			// It is possible for this to collide with a message or enum
-			// nested in this message. Check for collisions.
-			for {
-				ok := true
-				for _, desc := range message.nested {
-					if CamelCaseSlice(desc.TypeName()) == tname {
-						ok = false
-						break
-					}
-				}
-				for _, enum := range message.enums {
-					if CamelCaseSlice(enum.TypeName()) == tname {
-						ok = false
-						break
-					}
-				}
-				if !ok {
-					tname += "_"
-					continue
-				}
-				break
-			}
+// oneofSubFields are kept slize held by each oneofField. They do not appear in the top level slize of fields for the message.
+type oneofSubField struct {
+	fieldCommon
+	protoTypeName string                               // Proto type name, empty if primitive, e.g. ".google.protobuf.Duration"
+	protoType     descriptor.FieldDescriptorProto_Type // Actual type enum value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64
+	oneofTypeName string                               // Type name of the enclosing struct, e.g. "MessageName_FieldName"
+	fieldNumber   int                                  // Actual field number, as defined in proto, e.g. 12
+	getterDef     string                               // Default for getters, e.g. "nil", `""` or "Default_MessageType_FieldName"
+	protoDef      string                               // Default value as defined in the proto file, e.g "yoshi" or "5"
+	deprecated    string                               // Deprecation comment, if any.
+}
 
-			oneofTypeName[field] = tname
-			continue
-		}
+// typedNil prints a nil casted to the pointer to this field.
+// - for XXX_OneofWrappers
+func (f *oneofSubField) typedNil(g *Generator) {
+	g.P("(*", f.oneofTypeName, ")(nil),")
+}
 
-		g.PrintComments(fmt.Sprintf("%s,%d,%d", message.path, messageFieldPath, i))
-		g.P(fieldName, "\t", typename, "\t`", tag, "`")
-		g.RecordTypeUse(field.GetTypeName())
+// getProtoDef returns the default value explicitly stated in the proto file, e.g "yoshi" or "5".
+func (f *oneofSubField) getProtoDef() string {
+	return f.protoDef
+}
+
+// getProtoTypeName returns the protobuf type name for the field as returned by field.GetTypeName(), e.g. ".google.protobuf.Duration".
+func (f *oneofSubField) getProtoTypeName() string {
+	return f.protoTypeName
+}
+
+// getProtoType returns the *field.Type value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64.
+func (f *oneofSubField) getProtoType() descriptor.FieldDescriptorProto_Type {
+	return f.protoType
+}
+
+// oneofField represents the oneof on top level.
+// The alternative fields within the oneof are represented by oneofSubField.
+type oneofField struct {
+	fieldCommon
+	subFields []*oneofSubField // All the possible oneof fields
+	comment   string           // The full comment for the field, e.g. "// Types that are valid to be assigned to MyOneof:\n\\"
+}
+
+// decl prints the declaration of the field in the struct (if any).
+func (f *oneofField) decl(g *Generator, mc *msgCtx) {
+	comment := f.comment
+	for _, sf := range f.subFields {
+		comment += "//\t*" + sf.oneofTypeName + "\n"
 	}
-	if len(message.ExtensionRange) > 0 {
-		g.P(g.Pkg["proto"], ".XXX_InternalExtensions `json:\"-\"`")
+	g.P(comment, Annotate(mc.message.file, f.fullPath, f.goName), " ", f.goType, " `", f.tags, "`")
+}
+
+// getter for a oneof field will print additional discriminators and interfaces for the oneof,
+// also it prints all the getters for the sub fields.
+func (f *oneofField) getter(g *Generator, mc *msgCtx) {
+	// The discriminator type
+	g.P("type ", f.goType, " interface {")
+	g.P(f.goType, "()")
+	g.P("}")
+	g.P()
+	// The subField types, fulfilling the discriminator type contract
+	for _, sf := range f.subFields {
+		g.P("type ", Annotate(mc.message.file, sf.fullPath, sf.oneofTypeName), " struct {")
+		g.P(Annotate(mc.message.file, sf.fullPath, sf.goName), " ", sf.goType, " `", sf.tags, "`")
+		g.P("}")
+		g.P()
 	}
-	if !message.proto3() {
-		g.P("XXX_unrecognized\t[]byte `json:\"-\"`")
+	for _, sf := range f.subFields {
+		g.P("func (*", sf.oneofTypeName, ") ", f.goType, "() {}")
+		g.P()
 	}
-	g.Out()
+	// Getter for the oneof field
+	g.P("func (m *", mc.goName, ") ", Annotate(mc.message.file, f.fullPath, f.getterName), "() ", f.goType, " {")
+	g.P("if m != nil { return m.", f.goName, " }")
+	g.P("return nil")
 	g.P("}")
-
-	// Update g.Buffer to list valid oneof types.
-	// We do this down here, after we've disambiguated the oneof type names.
-	// We go in reverse order of insertion point to avoid invalidating offsets.
-	for oi := int32(len(message.OneofDecl)); oi >= 0; oi-- {
-		ip := oneofInsertPoints[oi]
-		all := g.Buffer.Bytes()
-		rem := all[ip:]
-		g.Buffer = bytes.NewBuffer(all[:ip:ip]) // set cap so we don't scribble on rem
-		for _, field := range message.Field {
-			if field.OneofIndex == nil || *field.OneofIndex != oi {
-				continue
-			}
-			g.P("//\t*", oneofTypeName[field])
-		}
-		g.Buffer.Write(rem)
+	g.P()
+	// Getters for each oneof
+	for _, sf := range f.subFields {
+		if sf.deprecated != "" {
+			g.P(sf.deprecated)
+		}
+		g.P("func (m *", mc.goName, ") ", Annotate(mc.message.file, sf.fullPath, sf.getterName), "() "+sf.goType+" {")
+		g.P("if x, ok := m.", f.getterName, "().(*", sf.oneofTypeName, "); ok {")
+		g.P("return x.", sf.goName)
+		g.P("}")
+		g.P("return ", sf.getterDef)
+		g.P("}")
+		g.P()
 	}
+}
 
-	// Reset, String and ProtoMessage methods.
-	g.P("func (m *", ccTypeName, ") Reset() { *m = ", ccTypeName, "{} }")
-	g.P("func (m *", ccTypeName, ") String() string { return ", g.Pkg["proto"], ".CompactTextString(m) }")
-	g.P("func (*", ccTypeName, ") ProtoMessage() {}")
-	var indexes []string
-	for m := message; m != nil; m = m.parent {
-		indexes = append([]string{strconv.Itoa(m.index)}, indexes...)
-	}
-	g.P("func (*", ccTypeName, ") Descriptor() ([]byte, []int) { return ", g.file.VarName(), ", []int{", strings.Join(indexes, ", "), "} }")
-	// TODO: Revisit the decision to use a XXX_WellKnownType method
-	// if we change proto.MessageName to work with multiple equivalents.
-	if message.file.GetPackage() == "google.protobuf" && wellKnownTypes[message.GetName()] {
-		g.P("func (*", ccTypeName, `) XXX_WellKnownType() string { return "`, message.GetName(), `" }`)
-	}
+// setter prints the setter method of the field.
+func (f *oneofField) setter(g *Generator, mc *msgCtx) {
+	// No setters for oneof yet
+}
 
-	// Extension support methods
-	var hasExtensions, isMessageSet bool
-	if len(message.ExtensionRange) > 0 {
-		hasExtensions = true
-		// message_set_wire_format only makes sense when extensions are defined.
-		if opts := message.Options; opts != nil && opts.GetMessageSetWireFormat() {
-			isMessageSet = true
-			g.P()
-			g.P("func (m *", ccTypeName, ") Marshal() ([]byte, error) {")
-			g.In()
-			g.P("return ", g.Pkg["proto"], ".MarshalMessageSet(&m.XXX_InternalExtensions)")
-			g.Out()
-			g.P("}")
-			g.P("func (m *", ccTypeName, ") Unmarshal(buf []byte) error {")
-			g.In()
-			g.P("return ", g.Pkg["proto"], ".UnmarshalMessageSet(buf, &m.XXX_InternalExtensions)")
-			g.Out()
-			g.P("}")
-			g.P("func (m *", ccTypeName, ") MarshalJSON() ([]byte, error) {")
-			g.In()
-			g.P("return ", g.Pkg["proto"], ".MarshalMessageSetJSON(&m.XXX_InternalExtensions)")
-			g.Out()
-			g.P("}")
-			g.P("func (m *", ccTypeName, ") UnmarshalJSON(buf []byte) error {")
-			g.In()
-			g.P("return ", g.Pkg["proto"], ".UnmarshalMessageSetJSON(buf, &m.XXX_InternalExtensions)")
-			g.Out()
-			g.P("}")
-			g.P("// ensure ", ccTypeName, " satisfies proto.Marshaler and proto.Unmarshaler")
-			g.P("var _ ", g.Pkg["proto"], ".Marshaler = (*", ccTypeName, ")(nil)")
-			g.P("var _ ", g.Pkg["proto"], ".Unmarshaler = (*", ccTypeName, ")(nil)")
-		}
+// topLevelField interface implemented by all types of fields on the top level (not oneofSubField).
+type topLevelField interface {
+	decl(g *Generator, mc *msgCtx)   // print declaration within the struct
+	getter(g *Generator, mc *msgCtx) // print getter
+	setter(g *Generator, mc *msgCtx) // print setter if applicable
+}
 
-		g.P()
-		g.P("var extRange_", ccTypeName, " = []", g.Pkg["proto"], ".ExtensionRange{")
-		g.In()
-		for _, r := range message.ExtensionRange {
-			end := fmt.Sprint(*r.End - 1) // make range inclusive on both ends
-			g.P("{", r.Start, ", ", end, "},")
+// defField interface implemented by all types of fields that can have defaults (not oneofField, but instead oneofSubField).
+type defField interface {
+	getProtoDef() string                                // default value explicitly stated in the proto file, e.g "yoshi" or "5"
+	getProtoName() string                               // proto name of a field, e.g. "field_name" or "descriptor"
+	getGoType() string                                  // go type of the field  as a string, e.g. "*int32"
+	getProtoTypeName() string                           // protobuf type name for the field, e.g. ".google.protobuf.Duration"
+	getProtoType() descriptor.FieldDescriptorProto_Type // *field.Type value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64
+}
+
+// generateDefaultConstants adds constants for default values if needed, which is only if the default value is.
+// explicit in the proto.
+func (g *Generator) generateDefaultConstants(mc *msgCtx, topLevelFields []topLevelField) {
+	// Collect fields that can have defaults
+	dFields := []defField{}
+	for _, pf := range topLevelFields {
+		if f, ok := pf.(*oneofField); ok {
+			for _, osf := range f.subFields {
+				dFields = append(dFields, osf)
+			}
+			continue
 		}
-		g.Out()
-		g.P("}")
-		g.P("func (*", ccTypeName, ") ExtensionRangeArray() []", g.Pkg["proto"], ".ExtensionRange {")
-		g.In()
-		g.P("return extRange_", ccTypeName)
-		g.Out()
-		g.P("}")
+		dFields = append(dFields, pf.(defField))
 	}
-
-	// Default constants
-	defNames := make(map[*descriptor.FieldDescriptorProto]string)
-	for _, field := range message.Field {
-		def := field.GetDefaultValue()
+	for _, df := range dFields {
+		def := df.getProtoDef()
 		if def == "" {
 			continue
 		}
-		fieldname := "Default_" + ccTypeName + "_" + CamelCase(*field.Name)
-		defNames[field] = fieldname
-		typename, _ := g.GoType(message, field)
+		fieldname := g.defaultConstantName(mc.goName, df.getProtoName())
+		typename := df.getGoType()
 		if typename[0] == '*' {
 			typename = typename[1:]
 		}
@@ -1985,7 +1985,7 @@ func (g *Generator) generateMessage(message *Descriptor) {
 		case typename == "string":
 			def = strconv.Quote(def)
 		case typename == "[]byte":
-			def = "[]byte(" + strconv.Quote(def) + ")"
+			def = "[]byte(" + strconv.Quote(unescape(def)) + ")"
 			kind = "var "
 		case def == "inf", def == "-inf", def == "nan":
 			// These names are known to, and defined by, the protocol language.
@@ -1997,13 +1997,21 @@ func (g *Generator) generateMessage(message *Descriptor) {
 			case "nan":
 				def = "math.NaN()"
 			}
-			if *field.Type == descriptor.FieldDescriptorProto_TYPE_FLOAT {
+			if df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_FLOAT {
 				def = "float32(" + def + ")"
 			}
 			kind = "var "
-		case *field.Type == descriptor.FieldDescriptorProto_TYPE_ENUM:
+		case df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_FLOAT:
+			if f, err := strconv.ParseFloat(def, 32); err == nil {
+				def = fmt.Sprint(float32(f))
+			}
+		case df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_DOUBLE:
+			if f, err := strconv.ParseFloat(def, 64); err == nil {
+				def = fmt.Sprint(f)
+			}
+		case df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_ENUM:
 			// Must be an enum.  Need to construct the prefixed name.
-			obj := g.ObjectNamed(field.GetTypeName())
+			obj := g.ObjectNamed(df.getProtoTypeName())
 			var enum *EnumDescriptor
 			if id, ok := obj.(*ImportedDescriptor); ok {
 				// The enum type has been publicly imported.
@@ -2018,485 +2026,389 @@ func (g *Generator) generateMessage(message *Descriptor) {
 			def = g.DefaultPackageName(obj) + enum.prefix() + def
 		}
 		g.P(kind, fieldname, " ", typename, " = ", def)
-		g.file.addExport(message, constOrVarSymbol{fieldname, kind, ""})
+		g.file.addExport(mc.message, constOrVarSymbol{fieldname, kind, ""})
 	}
 	g.P()
+}
 
-	// Oneof per-field types, discriminants and getters.
-	//
-	// Generate unexported named types for the discriminant interfaces.
-	// We shouldn't have to do this, but there was (~19 Aug 2015) a compiler/linker bug
-	// that was triggered by using anonymous interfaces here.
-	// TODO: Revisit this and consider reverting back to anonymous interfaces.
-	for oi := range message.OneofDecl {
-		dname := oneofDisc[int32(oi)]
-		g.P("type ", dname, " interface { ", dname, "() }")
-	}
-	g.P()
-	for _, field := range message.Field {
-		if field.OneofIndex == nil {
-			continue
+// generateInternalStructFields just adds the XXX_<something> fields to the message struct.
+func (g *Generator) generateInternalStructFields(mc *msgCtx, topLevelFields []topLevelField) {
+	g.P("XXX_NoUnkeyedLiteral\tstruct{} `json:\"-\"`") // prevent unkeyed struct literals
+	if len(mc.message.ExtensionRange) > 0 {
+		messageset := ""
+		if opts := mc.message.Options; opts != nil && opts.GetMessageSetWireFormat() {
+			messageset = "protobuf_messageset:\"1\" "
 		}
-		_, wiretype := g.GoType(message, field)
-		tag := "protobuf:" + g.goTag(message, field, wiretype)
-		g.P("type ", oneofTypeName[field], " struct{ ", fieldNames[field], " ", fieldTypes[field], " `", tag, "` }")
-		g.RecordTypeUse(field.GetTypeName())
+		g.P(g.Pkg["proto"], ".XXX_InternalExtensions `", messageset, "json:\"-\"`")
 	}
-	g.P()
-	for _, field := range message.Field {
-		if field.OneofIndex == nil {
-			continue
+	g.P("XXX_unrecognized\t[]byte `json:\"-\"`")
+	g.P("XXX_sizecache\tint32 `json:\"-\"`")
+
+}
+
+// generateOneofFuncs adds all the utility functions for oneof, including marshalling, unmarshalling and sizer.
+func (g *Generator) generateOneofFuncs(mc *msgCtx, topLevelFields []topLevelField) {
+	ofields := []*oneofField{}
+	for _, f := range topLevelFields {
+		if o, ok := f.(*oneofField); ok {
+			ofields = append(ofields, o)
 		}
-		g.P("func (*", oneofTypeName[field], ") ", oneofDisc[*field.OneofIndex], "() {}")
 	}
-	g.P()
-	for oi := range message.OneofDecl {
-		fname := oneofFieldName[int32(oi)]
-		g.P("func (m *", ccTypeName, ") Get", fname, "() ", oneofDisc[int32(oi)], " {")
-		g.P("if m != nil { return m.", fname, " }")
-		g.P("return nil")
-		g.P("}")
+	if len(ofields) == 0 {
+		return
 	}
+
+	// OneofFuncs
+	g.P("// XXX_OneofWrappers is for the internal use of the proto package.")
+	g.P("func (*", mc.goName, ") XXX_OneofWrappers() []interface{} {")
+	g.P("return []interface{}{")
+	for _, of := range ofields {
+		for _, sf := range of.subFields {
+			sf.typedNil(g)
+		}
+	}
+	g.P("}")
+	g.P("}")
 	g.P()
+}
 
-	// Field getters
-	var getters []getterSymbol
-	for _, field := range message.Field {
-		oneof := field.OneofIndex != nil
+// generateMessageStruct adds the actual struct with it's members (but not methods) to the output.
+func (g *Generator) generateMessageStruct(mc *msgCtx, topLevelFields []topLevelField) {
+	comments := g.PrintComments(mc.message.path)
 
-		fname := fieldNames[field]
-		typename, _ := g.GoType(message, field)
-		if t, ok := mapFieldTypes[field]; ok {
-			typename = t
-		}
-		mname := fieldGetterNames[field]
-		star := ""
-		if needsStar(*field.Type) && typename[0] == '*' {
-			typename = typename[1:]
-			star = "*"
-		}
-
-		// Only export getter symbols for basic types,
-		// and for messages and enums in the same package.
-		// Groups are not exported.
-		// Foreign types can't be hoisted through a public import because
-		// the importer may not already be importing the defining .proto.
-		// As an example, imagine we have an import tree like this:
-		//   A.proto -> B.proto -> C.proto
-		// If A publicly imports B, we need to generate the getters from B in A's output,
-		// but if one such getter returns something from C then we cannot do that
-		// because A is not importing C already.
-		var getter, genType bool
-		switch *field.Type {
-		case descriptor.FieldDescriptorProto_TYPE_GROUP:
-			getter = false
-		case descriptor.FieldDescriptorProto_TYPE_MESSAGE, descriptor.FieldDescriptorProto_TYPE_ENUM:
-			// Only export getter if its return type is in this package.
-			getter = g.ObjectNamed(field.GetTypeName()).PackageName() == message.PackageName()
-			genType = true
-		default:
-			getter = true
-		}
-		if getter {
-			getters = append(getters, getterSymbol{
-				name:     mname,
-				typ:      typename,
-				typeName: field.GetTypeName(),
-				genType:  genType,
-			})
+	// Guarantee deprecation comments appear after user-provided comments.
+	if mc.message.GetOptions().GetDeprecated() {
+		if comments {
+			// Convention: Separate deprecation comments from original
+			// comments with an empty line.
+			g.P("//")
 		}
+		g.P(deprecationComment)
+	}
 
-		g.P("func (m *", ccTypeName, ") "+mname+"() "+typename+" {")
-		g.In()
-		def, hasDef := defNames[field]
-		typeDefaultIsNil := false // whether this field type's default value is a literal nil unless specified
-		switch *field.Type {
-		case descriptor.FieldDescriptorProto_TYPE_BYTES:
-			typeDefaultIsNil = !hasDef
-		case descriptor.FieldDescriptorProto_TYPE_GROUP, descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-			typeDefaultIsNil = true
-		}
-		if isRepeated(field) {
-			typeDefaultIsNil = true
-		}
-		if typeDefaultIsNil && !oneof {
-			// A bytes field with no explicit default needs less generated code,
-			// as does a message or group field, or a repeated field.
-			g.P("if m != nil {")
-			g.In()
-			g.P("return m." + fname)
-			g.Out()
-			g.P("}")
-			g.P("return nil")
-			g.Out()
-			g.P("}")
-			g.P()
-			continue
-		}
-		if !oneof {
-			if message.proto3() {
-				g.P("if m != nil {")
-			} else {
-				g.P("if m != nil && m." + fname + " != nil {")
-			}
-			g.In()
-			g.P("return " + star + "m." + fname)
-			g.Out()
-			g.P("}")
-		} else {
-			uname := oneofFieldName[*field.OneofIndex]
-			tname := oneofTypeName[field]
-			g.P("if x, ok := m.Get", uname, "().(*", tname, "); ok {")
-			g.P("return x.", fname)
-			g.P("}")
-		}
-		if hasDef {
-			if *field.Type != descriptor.FieldDescriptorProto_TYPE_BYTES {
-				g.P("return " + def)
-			} else {
-				// The default is a []byte var.
-				// Make a copy when returning it to be safe.
-				g.P("return append([]byte(nil), ", def, "...)")
-			}
-		} else {
-			switch *field.Type {
-			case descriptor.FieldDescriptorProto_TYPE_BOOL:
-				g.P("return false")
-			case descriptor.FieldDescriptorProto_TYPE_STRING:
-				g.P(`return ""`)
-			case descriptor.FieldDescriptorProto_TYPE_GROUP,
-				descriptor.FieldDescriptorProto_TYPE_MESSAGE,
-				descriptor.FieldDescriptorProto_TYPE_BYTES:
-				// This is only possible for oneof fields.
-				g.P("return nil")
-			case descriptor.FieldDescriptorProto_TYPE_ENUM:
-				// The default default for an enum is the first value in the enum,
-				// not zero.
-				obj := g.ObjectNamed(field.GetTypeName())
-				var enum *EnumDescriptor
-				if id, ok := obj.(*ImportedDescriptor); ok {
-					// The enum type has been publicly imported.
-					enum, _ = id.o.(*EnumDescriptor)
-				} else {
-					enum, _ = obj.(*EnumDescriptor)
-				}
-				if enum == nil {
-					log.Printf("don't know how to generate getter for %s", field.GetName())
-					continue
-				}
-				if len(enum.Value) == 0 {
-					g.P("return 0 // empty enum")
-				} else {
-					first := enum.Value[0].GetName()
-					g.P("return ", g.DefaultPackageName(obj)+enum.prefix()+first)
-				}
-			default:
-				g.P("return 0")
-			}
-		}
-		g.Out()
-		g.P("}")
-		g.P()
+	g.P("type ", Annotate(mc.message.file, mc.message.path, mc.goName), " struct {")
+	for _, pf := range topLevelFields {
+		pf.decl(g, mc)
 	}
+	g.generateInternalStructFields(mc, topLevelFields)
+	g.P("}")
+}
 
-	if !message.group {
-		ms := &messageSymbol{
-			sym:           ccTypeName,
-			hasExtensions: hasExtensions,
-			isMessageSet:  isMessageSet,
-			hasOneof:      len(message.OneofDecl) > 0,
-			getters:       getters,
-		}
-		g.file.addExport(message, ms)
+// generateGetters adds getters for all fields, including oneofs and weak fields when applicable.
+func (g *Generator) generateGetters(mc *msgCtx, topLevelFields []topLevelField) {
+	for _, pf := range topLevelFields {
+		pf.getter(g, mc)
 	}
+}
 
-	// Oneof functions
-	if len(message.OneofDecl) > 0 {
-		fieldWire := make(map[*descriptor.FieldDescriptorProto]string)
+// generateSetters add setters for all fields, including oneofs and weak fields when applicable.
+func (g *Generator) generateSetters(mc *msgCtx, topLevelFields []topLevelField) {
+	for _, pf := range topLevelFields {
+		pf.setter(g, mc)
+	}
+}
 
-		// method
-		enc := "_" + ccTypeName + "_OneofMarshaler"
-		dec := "_" + ccTypeName + "_OneofUnmarshaler"
-		size := "_" + ccTypeName + "_OneofSizer"
-		encSig := "(msg " + g.Pkg["proto"] + ".Message, b *" + g.Pkg["proto"] + ".Buffer) error"
-		decSig := "(msg " + g.Pkg["proto"] + ".Message, tag, wire int, b *" + g.Pkg["proto"] + ".Buffer) (bool, error)"
-		sizeSig := "(msg " + g.Pkg["proto"] + ".Message) (n int)"
+// generateCommonMethods adds methods to the message that are not on a per field basis.
+func (g *Generator) generateCommonMethods(mc *msgCtx) {
+	// Reset, String and ProtoMessage methods.
+	g.P("func (m *", mc.goName, ") Reset() { *m = ", mc.goName, "{} }")
+	g.P("func (m *", mc.goName, ") String() string { return ", g.Pkg["proto"], ".CompactTextString(m) }")
+	g.P("func (*", mc.goName, ") ProtoMessage() {}")
+	var indexes []string
+	for m := mc.message; m != nil; m = m.parent {
+		indexes = append([]string{strconv.Itoa(m.index)}, indexes...)
+	}
+	g.P("func (*", mc.goName, ") Descriptor() ([]byte, []int) {")
+	g.P("return ", g.file.VarName(), ", []int{", strings.Join(indexes, ", "), "}")
+	g.P("}")
+	g.P()
+	// TODO: Revisit the decision to use a XXX_WellKnownType method
+	// if we change proto.MessageName to work with multiple equivalents.
+	if mc.message.file.GetPackage() == "google.protobuf" && wellKnownTypes[mc.message.GetName()] {
+		g.P("func (*", mc.goName, `) XXX_WellKnownType() string { return "`, mc.message.GetName(), `" }`)
+		g.P()
+	}
 
-		g.P("// XXX_OneofFuncs is for the internal use of the proto package.")
-		g.P("func (*", ccTypeName, ") XXX_OneofFuncs() (func", encSig, ", func", decSig, ", func", sizeSig, ", []interface{}) {")
-		g.P("return ", enc, ", ", dec, ", ", size, ", []interface{}{")
-		for _, field := range message.Field {
-			if field.OneofIndex == nil {
-				continue
-			}
-			g.P("(*", oneofTypeName[field], ")(nil),")
+	// Extension support methods
+	if len(mc.message.ExtensionRange) > 0 {
+		g.P()
+		g.P("var extRange_", mc.goName, " = []", g.Pkg["proto"], ".ExtensionRange{")
+		for _, r := range mc.message.ExtensionRange {
+			end := fmt.Sprint(*r.End - 1) // make range inclusive on both ends
+			g.P("{Start: ", r.Start, ", End: ", end, "},")
 		}
 		g.P("}")
+		g.P("func (*", mc.goName, ") ExtensionRangeArray() []", g.Pkg["proto"], ".ExtensionRange {")
+		g.P("return extRange_", mc.goName)
 		g.P("}")
 		g.P()
+	}
 
-		// marshaler
-		g.P("func ", enc, encSig, " {")
-		g.P("m := msg.(*", ccTypeName, ")")
-		for oi, odp := range message.OneofDecl {
-			g.P("// ", odp.GetName())
-			fname := oneofFieldName[int32(oi)]
-			g.P("switch x := m.", fname, ".(type) {")
-			for _, field := range message.Field {
-				if field.OneofIndex == nil || int(*field.OneofIndex) != oi {
-					continue
-				}
-				g.P("case *", oneofTypeName[field], ":")
-				var wire, pre, post string
-				val := "x." + fieldNames[field] // overridden for TYPE_BOOL
-				canFail := false                // only TYPE_MESSAGE and TYPE_GROUP can fail
-				switch *field.Type {
-				case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
-					wire = "WireFixed64"
-					pre = "b.EncodeFixed64(" + g.Pkg["math"] + ".Float64bits("
-					post = "))"
-				case descriptor.FieldDescriptorProto_TYPE_FLOAT:
-					wire = "WireFixed32"
-					pre = "b.EncodeFixed32(uint64(" + g.Pkg["math"] + ".Float32bits("
-					post = ")))"
-				case descriptor.FieldDescriptorProto_TYPE_INT64,
-					descriptor.FieldDescriptorProto_TYPE_UINT64:
-					wire = "WireVarint"
-					pre, post = "b.EncodeVarint(uint64(", "))"
-				case descriptor.FieldDescriptorProto_TYPE_INT32,
-					descriptor.FieldDescriptorProto_TYPE_UINT32,
-					descriptor.FieldDescriptorProto_TYPE_ENUM:
-					wire = "WireVarint"
-					pre, post = "b.EncodeVarint(uint64(", "))"
-				case descriptor.FieldDescriptorProto_TYPE_FIXED64,
-					descriptor.FieldDescriptorProto_TYPE_SFIXED64:
-					wire = "WireFixed64"
-					pre, post = "b.EncodeFixed64(uint64(", "))"
-				case descriptor.FieldDescriptorProto_TYPE_FIXED32,
-					descriptor.FieldDescriptorProto_TYPE_SFIXED32:
-					wire = "WireFixed32"
-					pre, post = "b.EncodeFixed32(uint64(", "))"
-				case descriptor.FieldDescriptorProto_TYPE_BOOL:
-					// bool needs special handling.
-					g.P("t := uint64(0)")
-					g.P("if ", val, " { t = 1 }")
-					val = "t"
-					wire = "WireVarint"
-					pre, post = "b.EncodeVarint(", ")"
-				case descriptor.FieldDescriptorProto_TYPE_STRING:
-					wire = "WireBytes"
-					pre, post = "b.EncodeStringBytes(", ")"
-				case descriptor.FieldDescriptorProto_TYPE_GROUP:
-					wire = "WireStartGroup"
-					pre, post = "b.Marshal(", ")"
-					canFail = true
-				case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-					wire = "WireBytes"
-					pre, post = "b.EncodeMessage(", ")"
-					canFail = true
-				case descriptor.FieldDescriptorProto_TYPE_BYTES:
-					wire = "WireBytes"
-					pre, post = "b.EncodeRawBytes(", ")"
-				case descriptor.FieldDescriptorProto_TYPE_SINT32:
-					wire = "WireVarint"
-					pre, post = "b.EncodeZigzag32(uint64(", "))"
-				case descriptor.FieldDescriptorProto_TYPE_SINT64:
-					wire = "WireVarint"
-					pre, post = "b.EncodeZigzag64(uint64(", "))"
-				default:
-					g.Fail("unhandled oneof field type ", field.Type.String())
-				}
-				fieldWire[field] = wire
-				g.P("b.EncodeVarint(", field.Number, "<<3|", g.Pkg["proto"], ".", wire, ")")
-				if !canFail {
-					g.P(pre, val, post)
-				} else {
-					g.P("if err := ", pre, val, post, "; err != nil {")
-					g.P("return err")
-					g.P("}")
-				}
-				if *field.Type == descriptor.FieldDescriptorProto_TYPE_GROUP {
-					g.P("b.EncodeVarint(", field.Number, "<<3|", g.Pkg["proto"], ".WireEndGroup)")
+	// TODO: It does not scale to keep adding another method for every
+	// operation on protos that we want to switch over to using the
+	// table-driven approach. Instead, we should only add a single method
+	// that allows getting access to the *InternalMessageInfo struct and then
+	// calling Unmarshal, Marshal, Merge, Size, and Discard directly on that.
+
+	// Wrapper for table-driven marshaling and unmarshaling.
+	g.P("func (m *", mc.goName, ") XXX_Unmarshal(b []byte) error {")
+	g.P("return xxx_messageInfo_", mc.goName, ".Unmarshal(m, b)")
+	g.P("}")
+
+	g.P("func (m *", mc.goName, ") XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {")
+	g.P("return xxx_messageInfo_", mc.goName, ".Marshal(b, m, deterministic)")
+	g.P("}")
+
+	g.P("func (m *", mc.goName, ") XXX_Merge(src ", g.Pkg["proto"], ".Message) {")
+	g.P("xxx_messageInfo_", mc.goName, ".Merge(m, src)")
+	g.P("}")
+
+	g.P("func (m *", mc.goName, ") XXX_Size() int {") // avoid name clash with "Size" field in some message
+	g.P("return xxx_messageInfo_", mc.goName, ".Size(m)")
+	g.P("}")
+
+	g.P("func (m *", mc.goName, ") XXX_DiscardUnknown() {")
+	g.P("xxx_messageInfo_", mc.goName, ".DiscardUnknown(m)")
+	g.P("}")
+
+	g.P("var xxx_messageInfo_", mc.goName, " ", g.Pkg["proto"], ".InternalMessageInfo")
+	g.P()
+}
+
+// Generate the type, methods and default constant definitions for this Descriptor.
+func (g *Generator) generateMessage(message *Descriptor) {
+	topLevelFields := []topLevelField{}
+	oFields := make(map[int32]*oneofField)
+	// The full type name
+	typeName := message.TypeName()
+	// The full type name, CamelCased.
+	goTypeName := CamelCaseSlice(typeName)
+
+	usedNames := make(map[string]bool)
+	for _, n := range methodNames {
+		usedNames[n] = true
+	}
+
+	// allocNames finds a conflict-free variation of the given strings,
+	// consistently mutating their suffixes.
+	// It returns the same number of strings.
+	allocNames := func(ns ...string) []string {
+	Loop:
+		for {
+			for _, n := range ns {
+				if usedNames[n] {
+					for i := range ns {
+						ns[i] += "_"
+					}
+					continue Loop
 				}
 			}
-			g.P("case nil:")
-			g.P("default: return ", g.Pkg["fmt"], `.Errorf("`, ccTypeName, ".", fname, ` has unexpected type %T", x)`)
-			g.P("}")
+			for _, n := range ns {
+				usedNames[n] = true
+			}
+			return ns
 		}
-		g.P("return nil")
-		g.P("}")
-		g.P()
+	}
 
-		// unmarshaler
-		g.P("func ", dec, decSig, " {")
-		g.P("m := msg.(*", ccTypeName, ")")
-		g.P("switch tag {")
-		for _, field := range message.Field {
-			if field.OneofIndex == nil {
-				continue
-			}
+	mapFieldTypes := make(map[*descriptor.FieldDescriptorProto]string) // keep track of the map fields to be added later
+
+	// Build a structure more suitable for generating the text in one pass
+	for i, field := range message.Field {
+		// Allocate the getter and the field at the same time so name
+		// collisions create field/method consistent names.
+		// TODO: This allocation occurs based on the order of the fields
+		// in the proto file, meaning that a change in the field
+		// ordering can change generated Method/Field names.
+		base := CamelCase(*field.Name)
+		ns := allocNames(base, "Get"+base)
+		fieldName, fieldGetterName := ns[0], ns[1]
+		typename, wiretype := g.GoType(message, field)
+		jsonName := *field.Name
+		tag := fmt.Sprintf("protobuf:%s json:%q", g.goTag(message, field, wiretype), jsonName+",omitempty")
+
+		oneof := field.OneofIndex != nil
+		if oneof && oFields[*field.OneofIndex] == nil {
 			odp := message.OneofDecl[int(*field.OneofIndex)]
-			g.P("case ", field.Number, ": // ", odp.GetName(), ".", *field.Name)
-			g.P("if wire != ", g.Pkg["proto"], ".", fieldWire[field], " {")
-			g.P("return true, ", g.Pkg["proto"], ".ErrInternalBadWireType")
-			g.P("}")
-			lhs := "x, err" // overridden for TYPE_MESSAGE and TYPE_GROUP
-			var dec, cast, cast2 string
-			switch *field.Type {
-			case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
-				dec, cast = "b.DecodeFixed64()", g.Pkg["math"]+".Float64frombits"
-			case descriptor.FieldDescriptorProto_TYPE_FLOAT:
-				dec, cast, cast2 = "b.DecodeFixed32()", "uint32", g.Pkg["math"]+".Float32frombits"
-			case descriptor.FieldDescriptorProto_TYPE_INT64:
-				dec, cast = "b.DecodeVarint()", "int64"
-			case descriptor.FieldDescriptorProto_TYPE_UINT64:
-				dec = "b.DecodeVarint()"
-			case descriptor.FieldDescriptorProto_TYPE_INT32:
-				dec, cast = "b.DecodeVarint()", "int32"
-			case descriptor.FieldDescriptorProto_TYPE_FIXED64:
-				dec = "b.DecodeFixed64()"
-			case descriptor.FieldDescriptorProto_TYPE_FIXED32:
-				dec, cast = "b.DecodeFixed32()", "uint32"
-			case descriptor.FieldDescriptorProto_TYPE_BOOL:
-				dec = "b.DecodeVarint()"
-				// handled specially below
-			case descriptor.FieldDescriptorProto_TYPE_STRING:
-				dec = "b.DecodeStringBytes()"
-			case descriptor.FieldDescriptorProto_TYPE_GROUP:
-				g.P("msg := new(", fieldTypes[field][1:], ")") // drop star
-				lhs = "err"
-				dec = "b.DecodeGroup(msg)"
-				// handled specially below
-			case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-				g.P("msg := new(", fieldTypes[field][1:], ")") // drop star
-				lhs = "err"
-				dec = "b.DecodeMessage(msg)"
-				// handled specially below
-			case descriptor.FieldDescriptorProto_TYPE_BYTES:
-				dec = "b.DecodeRawBytes(true)"
-			case descriptor.FieldDescriptorProto_TYPE_UINT32:
-				dec, cast = "b.DecodeVarint()", "uint32"
-			case descriptor.FieldDescriptorProto_TYPE_ENUM:
-				dec, cast = "b.DecodeVarint()", fieldTypes[field]
-			case descriptor.FieldDescriptorProto_TYPE_SFIXED32:
-				dec, cast = "b.DecodeFixed32()", "int32"
-			case descriptor.FieldDescriptorProto_TYPE_SFIXED64:
-				dec, cast = "b.DecodeFixed64()", "int64"
-			case descriptor.FieldDescriptorProto_TYPE_SINT32:
-				dec, cast = "b.DecodeZigzag32()", "int32"
-			case descriptor.FieldDescriptorProto_TYPE_SINT64:
-				dec, cast = "b.DecodeZigzag64()", "int64"
-			default:
-				g.Fail("unhandled oneof field type ", field.Type.String())
-			}
-			g.P(lhs, " := ", dec)
-			val := "x"
-			if cast != "" {
-				val = cast + "(" + val + ")"
-			}
-			if cast2 != "" {
-				val = cast2 + "(" + val + ")"
+			base := CamelCase(odp.GetName())
+			names := allocNames(base, "Get"+base)
+			fname, gname := names[0], names[1]
+
+			// This is the first field of a oneof we haven't seen before.
+			// Generate the union field.
+			oneofFullPath := fmt.Sprintf("%s,%d,%d", message.path, messageOneofPath, *field.OneofIndex)
+			c, ok := g.makeComments(oneofFullPath)
+			if ok {
+				c += "\n//\n"
 			}
-			switch *field.Type {
-			case descriptor.FieldDescriptorProto_TYPE_BOOL:
-				val += " != 0"
-			case descriptor.FieldDescriptorProto_TYPE_GROUP,
-				descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-				val = "msg"
+			c += "// Types that are valid to be assigned to " + fname + ":\n"
+			// Generate the rest of this comment later,
+			// when we've computed any disambiguation.
+
+			dname := "is" + goTypeName + "_" + fname
+			tag := `protobuf_oneof:"` + odp.GetName() + `"`
+			of := oneofField{
+				fieldCommon: fieldCommon{
+					goName:     fname,
+					getterName: gname,
+					goType:     dname,
+					tags:       tag,
+					protoName:  odp.GetName(),
+					fullPath:   oneofFullPath,
+				},
+				comment: c,
 			}
-			g.P("m.", oneofFieldName[*field.OneofIndex], " = &", oneofTypeName[field], "{", val, "}")
-			g.P("return true, err")
+			topLevelFields = append(topLevelFields, &of)
+			oFields[*field.OneofIndex] = &of
 		}
-		g.P("default: return false, nil")
-		g.P("}")
-		g.P("}")
-		g.P()
 
-		// sizer
-		g.P("func ", size, sizeSig, " {")
-		g.P("m := msg.(*", ccTypeName, ")")
-		for oi, odp := range message.OneofDecl {
-			g.P("// ", odp.GetName())
-			fname := oneofFieldName[int32(oi)]
-			g.P("switch x := m.", fname, ".(type) {")
-			for _, field := range message.Field {
-				if field.OneofIndex == nil || int(*field.OneofIndex) != oi {
-					continue
-				}
-				g.P("case *", oneofTypeName[field], ":")
-				val := "x." + fieldNames[field]
-				var wire, varint, fixed string
-				switch *field.Type {
-				case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
-					wire = "WireFixed64"
-					fixed = "8"
-				case descriptor.FieldDescriptorProto_TYPE_FLOAT:
-					wire = "WireFixed32"
-					fixed = "4"
-				case descriptor.FieldDescriptorProto_TYPE_INT64,
-					descriptor.FieldDescriptorProto_TYPE_UINT64,
-					descriptor.FieldDescriptorProto_TYPE_INT32,
-					descriptor.FieldDescriptorProto_TYPE_UINT32,
-					descriptor.FieldDescriptorProto_TYPE_ENUM:
-					wire = "WireVarint"
-					varint = val
-				case descriptor.FieldDescriptorProto_TYPE_FIXED64,
-					descriptor.FieldDescriptorProto_TYPE_SFIXED64:
-					wire = "WireFixed64"
-					fixed = "8"
-				case descriptor.FieldDescriptorProto_TYPE_FIXED32,
-					descriptor.FieldDescriptorProto_TYPE_SFIXED32:
-					wire = "WireFixed32"
-					fixed = "4"
-				case descriptor.FieldDescriptorProto_TYPE_BOOL:
-					wire = "WireVarint"
-					fixed = "1"
-				case descriptor.FieldDescriptorProto_TYPE_STRING:
-					wire = "WireBytes"
-					fixed = "len(" + val + ")"
-					varint = fixed
-				case descriptor.FieldDescriptorProto_TYPE_GROUP:
-					wire = "WireStartGroup"
-					fixed = g.Pkg["proto"] + ".Size(" + val + ")"
+		if *field.Type == descriptor.FieldDescriptorProto_TYPE_MESSAGE {
+			desc := g.ObjectNamed(field.GetTypeName())
+			if d, ok := desc.(*Descriptor); ok && d.GetOptions().GetMapEntry() {
+				// Figure out the Go types and tags for the key and value types.
+				keyField, valField := d.Field[0], d.Field[1]
+				keyType, keyWire := g.GoType(d, keyField)
+				valType, valWire := g.GoType(d, valField)
+				keyTag, valTag := g.goTag(d, keyField, keyWire), g.goTag(d, valField, valWire)
+
+				// We don't use stars, except for message-typed values.
+				// Message and enum types are the only two possibly foreign types used in maps,
+				// so record their use. They are not permitted as map keys.
+				keyType = strings.TrimPrefix(keyType, "*")
+				switch *valField.Type {
+				case descriptor.FieldDescriptorProto_TYPE_ENUM:
+					valType = strings.TrimPrefix(valType, "*")
+					g.RecordTypeUse(valField.GetTypeName())
 				case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-					wire = "WireBytes"
-					g.P("s := ", g.Pkg["proto"], ".Size(", val, ")")
-					fixed = "s"
-					varint = fixed
-				case descriptor.FieldDescriptorProto_TYPE_BYTES:
-					wire = "WireBytes"
-					fixed = "len(" + val + ")"
-					varint = fixed
-				case descriptor.FieldDescriptorProto_TYPE_SINT32:
-					wire = "WireVarint"
-					varint = "(uint32(" + val + ") << 1) ^ uint32((int32(" + val + ") >> 31))"
-				case descriptor.FieldDescriptorProto_TYPE_SINT64:
-					wire = "WireVarint"
-					varint = "uint64(" + val + " << 1) ^ uint64((int64(" + val + ") >> 63))"
+					g.RecordTypeUse(valField.GetTypeName())
 				default:
-					g.Fail("unhandled oneof field type ", field.Type.String())
+					valType = strings.TrimPrefix(valType, "*")
 				}
-				g.P("n += ", g.Pkg["proto"], ".SizeVarint(", field.Number, "<<3|", g.Pkg["proto"], ".", wire, ")")
-				if varint != "" {
-					g.P("n += ", g.Pkg["proto"], ".SizeVarint(uint64(", varint, "))")
+
+				typename = fmt.Sprintf("map[%s]%s", keyType, valType)
+				mapFieldTypes[field] = typename // record for the getter generation
+
+				tag += fmt.Sprintf(" protobuf_key:%s protobuf_val:%s", keyTag, valTag)
+			}
+		}
+
+		fieldDeprecated := ""
+		if field.GetOptions().GetDeprecated() {
+			fieldDeprecated = deprecationComment
+		}
+
+		dvalue := g.getterDefault(field, goTypeName)
+		if oneof {
+			tname := goTypeName + "_" + fieldName
+			// It is possible for this to collide with a message or enum
+			// nested in this message. Check for collisions.
+			for {
+				ok := true
+				for _, desc := range message.nested {
+					if CamelCaseSlice(desc.TypeName()) == tname {
+						ok = false
+						break
+					}
 				}
-				if fixed != "" {
-					g.P("n += ", fixed)
+				for _, enum := range message.enums {
+					if CamelCaseSlice(enum.TypeName()) == tname {
+						ok = false
+						break
+					}
 				}
-				if *field.Type == descriptor.FieldDescriptorProto_TYPE_GROUP {
-					g.P("n += ", g.Pkg["proto"], ".SizeVarint(", field.Number, "<<3|", g.Pkg["proto"], ".WireEndGroup)")
+				if !ok {
+					tname += "_"
+					continue
 				}
+				break
 			}
-			g.P("case nil:")
-			g.P("default:")
-			g.P("panic(", g.Pkg["fmt"], ".Sprintf(\"proto: unexpected type %T in oneof\", x))")
-			g.P("}")
+
+			oneofField := oFields[*field.OneofIndex]
+			tag := "protobuf:" + g.goTag(message, field, wiretype)
+			sf := oneofSubField{
+				fieldCommon: fieldCommon{
+					goName:     fieldName,
+					getterName: fieldGetterName,
+					goType:     typename,
+					tags:       tag,
+					protoName:  field.GetName(),
+					fullPath:   fmt.Sprintf("%s,%d,%d", message.path, messageFieldPath, i),
+				},
+				protoTypeName: field.GetTypeName(),
+				fieldNumber:   int(*field.Number),
+				protoType:     *field.Type,
+				getterDef:     dvalue,
+				protoDef:      field.GetDefaultValue(),
+				oneofTypeName: tname,
+				deprecated:    fieldDeprecated,
+			}
+			oneofField.subFields = append(oneofField.subFields, &sf)
+			g.RecordTypeUse(field.GetTypeName())
+			continue
 		}
-		g.P("return n")
-		g.P("}")
-		g.P()
+
+		fieldFullPath := fmt.Sprintf("%s,%d,%d", message.path, messageFieldPath, i)
+		c, ok := g.makeComments(fieldFullPath)
+		if ok {
+			c += "\n"
+		}
+		rf := simpleField{
+			fieldCommon: fieldCommon{
+				goName:     fieldName,
+				getterName: fieldGetterName,
+				goType:     typename,
+				tags:       tag,
+				protoName:  field.GetName(),
+				fullPath:   fieldFullPath,
+			},
+			protoTypeName: field.GetTypeName(),
+			protoType:     *field.Type,
+			deprecated:    fieldDeprecated,
+			getterDef:     dvalue,
+			protoDef:      field.GetDefaultValue(),
+			comment:       c,
+		}
+		var pf topLevelField = &rf
+
+		topLevelFields = append(topLevelFields, pf)
+		g.RecordTypeUse(field.GetTypeName())
 	}
 
+	mc := &msgCtx{
+		goName:  goTypeName,
+		message: message,
+	}
+
+	g.generateMessageStruct(mc, topLevelFields)
+	g.P()
+	g.generateCommonMethods(mc)
+	g.P()
+	g.generateDefaultConstants(mc, topLevelFields)
+	g.P()
+	g.generateGetters(mc, topLevelFields)
+	g.P()
+	g.generateSetters(mc, topLevelFields)
+	g.P()
+	g.generateOneofFuncs(mc, topLevelFields)
+	g.P()
+
+	var oneofTypes []string
+	for _, f := range topLevelFields {
+		if of, ok := f.(*oneofField); ok {
+			for _, osf := range of.subFields {
+				oneofTypes = append(oneofTypes, osf.oneofTypeName)
+			}
+		}
+	}
+
+	opts := message.Options
+	ms := &messageSymbol{
+		sym:           goTypeName,
+		hasExtensions: len(message.ExtensionRange) > 0,
+		isMessageSet:  opts != nil && opts.GetMessageSetWireFormat(),
+		oneofTypes:    oneofTypes,
+	}
+	g.file.addExport(message, ms)
+
 	for _, ext := range message.ext {
 		g.generateExtension(ext)
 	}
@@ -2506,7 +2418,90 @@ func (g *Generator) generateMessage(message *Descriptor) {
 		fullName = *g.file.Package + "." + fullName
 	}
 
-	g.addInitf("%s.RegisterType((*%s)(nil), %q)", g.Pkg["proto"], ccTypeName, fullName)
+	g.addInitf("%s.RegisterType((*%s)(nil), %q)", g.Pkg["proto"], goTypeName, fullName)
+	// Register types for native map types.
+	for _, k := range mapFieldKeys(mapFieldTypes) {
+		fullName := strings.TrimPrefix(*k.TypeName, ".")
+		g.addInitf("%s.RegisterMapType((%s)(nil), %q)", g.Pkg["proto"], mapFieldTypes[k], fullName)
+	}
+
+}
+
+type byTypeName []*descriptor.FieldDescriptorProto
+
+func (a byTypeName) Len() int           { return len(a) }
+func (a byTypeName) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
+func (a byTypeName) Less(i, j int) bool { return *a[i].TypeName < *a[j].TypeName }
+
+// mapFieldKeys returns the keys of m in a consistent order.
+func mapFieldKeys(m map[*descriptor.FieldDescriptorProto]string) []*descriptor.FieldDescriptorProto {
+	keys := make([]*descriptor.FieldDescriptorProto, 0, len(m))
+	for k := range m {
+		keys = append(keys, k)
+	}
+	sort.Sort(byTypeName(keys))
+	return keys
+}
+
+var escapeChars = [256]byte{
+	'a': '\a', 'b': '\b', 'f': '\f', 'n': '\n', 'r': '\r', 't': '\t', 'v': '\v', '\\': '\\', '"': '"', '\'': '\'', '?': '?',
+}
+
+// unescape reverses the "C" escaping that protoc does for default values of bytes fields.
+// It is best effort in that it effectively ignores malformed input. Seemingly invalid escape
+// sequences are conveyed, unmodified, into the decoded result.
+func unescape(s string) string {
+	// NB: Sadly, we can't use strconv.Unquote because protoc will escape both
+	// single and double quotes, but strconv.Unquote only allows one or the
+	// other (based on actual surrounding quotes of its input argument).
+
+	var out []byte
+	for len(s) > 0 {
+		// regular character, or too short to be valid escape
+		if s[0] != '\\' || len(s) < 2 {
+			out = append(out, s[0])
+			s = s[1:]
+		} else if c := escapeChars[s[1]]; c != 0 {
+			// escape sequence
+			out = append(out, c)
+			s = s[2:]
+		} else if s[1] == 'x' || s[1] == 'X' {
+			// hex escape, e.g. "\x80
+			if len(s) < 4 {
+				// too short to be valid
+				out = append(out, s[:2]...)
+				s = s[2:]
+				continue
+			}
+			v, err := strconv.ParseUint(s[2:4], 16, 8)
+			if err != nil {
+				out = append(out, s[:4]...)
+			} else {
+				out = append(out, byte(v))
+			}
+			s = s[4:]
+		} else if '0' <= s[1] && s[1] <= '7' {
+			// octal escape, can vary from 1 to 3 octal digits; e.g., "\0" "\40" or "\164"
+			// so consume up to 2 more bytes or up to end-of-string
+			n := len(s[1:]) - len(strings.TrimLeft(s[1:], "01234567"))
+			if n > 3 {
+				n = 3
+			}
+			v, err := strconv.ParseUint(s[1:1+n], 8, 8)
+			if err != nil {
+				out = append(out, s[:1+n]...)
+			} else {
+				out = append(out, byte(v))
+			}
+			s = s[1+n:]
+		} else {
+			// bad escape, just propagate the slash as-is
+			out = append(out, s[0])
+			s = s[1:]
+		}
+	}
+
+	return string(out)
 }
 
 func (g *Generator) generateExtension(ext *ExtensionDescriptor) {
@@ -2534,12 +2529,15 @@ func (g *Generator) generateExtension(ext *ExtensionDescriptor) {
 	typeName := ext.TypeName()
 
 	// Special case for proto2 message sets: If this extension is extending
-	// proto2_bridge.MessageSet, and its final name component is "message_set_extension",
+	// proto2.bridge.MessageSet, and its final name component is "message_set_extension",
 	// then drop that last component.
-	mset := false
-	if extendedType == "*proto2_bridge.MessageSet" && typeName[len(typeName)-1] == "message_set_extension" {
+	//
+	// TODO: This should be implemented in the text formatter rather than the generator.
+	// In addition, the situation for when to apply this special case is implemented
+	// differently in other languages:
+	// https://github.com/google/protobuf/blob/aff10976/src/google/protobuf/text_format.cc#L1560
+	if extDesc.GetOptions().GetMessageSetWireFormat() && typeName[len(typeName)-1] == "message_set_extension" {
 		typeName = typeName[:len(typeName)-1]
-		mset = true
 	}
 
 	// For text formatting, the package must be exactly what the .proto file declares,
@@ -2550,7 +2548,6 @@ func (g *Generator) generateExtension(ext *ExtensionDescriptor) {
 	}
 
 	g.P("var ", ccTypeName, " = &", g.Pkg["proto"], ".ExtensionDesc{")
-	g.In()
 	g.P("ExtendedType: (", extendedType, ")(nil),")
 	g.P("ExtensionType: (", fieldType, ")(nil),")
 	g.P("Field: ", field.Number, ",")
@@ -2558,39 +2555,22 @@ func (g *Generator) generateExtension(ext *ExtensionDescriptor) {
 	g.P("Tag: ", tag, ",")
 	g.P(`Filename: "`, g.file.GetName(), `",`)
 
-	g.Out()
 	g.P("}")
 	g.P()
 
-	if mset {
-		// Generate a bit more code to register with message_set.go.
-		g.addInitf("%s.RegisterMessageSetType((%s)(nil), %d, %q)", g.Pkg["proto"], fieldType, *field.Number, extName)
-	}
+	g.addInitf("%s.RegisterExtension(%s)", g.Pkg["proto"], ext.DescName())
 
 	g.file.addExport(ext, constOrVarSymbol{ccTypeName, "var", ""})
 }
 
 func (g *Generator) generateInitFunction() {
-	for _, enum := range g.file.enum {
-		g.generateEnumRegistration(enum)
-	}
-	for _, d := range g.file.desc {
-		for _, ext := range d.ext {
-			g.generateExtensionRegistration(ext)
-		}
-	}
-	for _, ext := range g.file.ext {
-		g.generateExtensionRegistration(ext)
-	}
 	if len(g.init) == 0 {
 		return
 	}
 	g.P("func init() {")
-	g.In()
 	for _, l := range g.init {
 		g.P(l)
 	}
-	g.Out()
 	g.P("}")
 	g.init = nil
 }
@@ -2616,7 +2596,6 @@ func (g *Generator) generateFileDescriptor(file *FileDescriptor) {
 	g.P()
 	g.P("func init() { ", g.Pkg["proto"], ".RegisterFile(", strconv.Quote(*file.Name), ", ", v, ") }")
 	g.P("var ", v, " = []byte{")
-	g.In()
 	g.P("// ", len(b), " bytes of a gzipped FileDescriptorProto")
 	for len(b) > 0 {
 		n := 16
@@ -2632,7 +2611,6 @@ func (g *Generator) generateFileDescriptor(file *FileDescriptor) {
 
 		b = b[n:]
 	}
-	g.Out()
 	g.P("}")
 }
 
@@ -2649,10 +2627,6 @@ func (g *Generator) generateEnumRegistration(enum *EnumDescriptor) {
 	g.addInitf("%s.RegisterEnum(%q, %[3]s_name, %[3]s_value)", g.Pkg["proto"], pkg+ccTypeName, ccTypeName)
 }
 
-func (g *Generator) generateExtensionRegistration(ext *ExtensionDescriptor) {
-	g.addInitf("%s.RegisterExtension(%s)", g.Pkg["proto"], ext.DescName())
-}
-
 // And now lots of helper functions.
 
 // Is c an ASCII lower-case letter?
@@ -2804,3 +2778,14 @@ const (
 	// tag numbers in EnumDescriptorProto
 	enumValuePath = 2 // value
 )
+
+var supportTypeAliases bool
+
+func init() {
+	for _, tag := range build.Default.ReleaseTags {
+		if tag == "go1.9" {
+			supportTypeAliases = true
+			return
+		}
+	}
+}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/Makefile b/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/Makefile
deleted file mode 100644
index eb41f20d..00000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/Makefile
+++ /dev/null
@@ -1,45 +0,0 @@
-# Go support for Protocol Buffers - Google's data interchange format
-#
-# Copyright 2010 The Go Authors.  All rights reserved.
-# https://github.com/golang/protobuf
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# Not stored here, but plugin.proto is in https://github.com/google/protobuf/
-# at src/google/protobuf/compiler/plugin.proto
-# Also we need to fix an import.
-regenerate:
-	echo WARNING! THIS RULE IS PROBABLY NOT RIGHT FOR YOUR INSTALLATION
-	protoc --go_out=Mgoogle/protobuf/descriptor.proto=github.com/golang/protobuf/protoc-gen-go/descriptor:. \
-		-I$(HOME)/src/protobuf/src $(HOME)/src/protobuf/src/google/protobuf/compiler/plugin.proto && \
-		mv google/protobuf/compiler/plugin.pb.go $(GOPATH)/src/github.com/golang/protobuf/protoc-gen-go/plugin
-
-restore:
-	cp plugin.pb.golden plugin.pb.go
-
-preserve:
-	cp plugin.pb.go plugin.pb.golden
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go b/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go
index 0ff4e13a..04561b85 100644
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go
+++ b/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go
@@ -1,229 +1,76 @@
-// Code generated by protoc-gen-go.
-// source: google/protobuf/compiler/plugin.proto
-// DO NOT EDIT!
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: github.com/golang/protobuf/protoc-gen-go/plugin/plugin.proto
 
-/*
-Package plugin_go is a generated protocol buffer package.
-
-It is generated from these files:
-	google/protobuf/compiler/plugin.proto
-
-It has these top-level messages:
-	CodeGeneratorRequest
-	CodeGeneratorResponse
-*/
 package plugin_go
 
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-// An encoded CodeGeneratorRequest is written to the plugin's stdin.
-type CodeGeneratorRequest struct {
-	// The .proto files that were explicitly listed on the command-line.  The
-	// code generator should generate code only for these files.  Each file's
-	// descriptor will be included in proto_file, below.
-	FileToGenerate []string `protobuf:"bytes,1,rep,name=file_to_generate,json=fileToGenerate" json:"file_to_generate,omitempty"`
-	// The generator parameter passed on the command-line.
-	Parameter *string `protobuf:"bytes,2,opt,name=parameter" json:"parameter,omitempty"`
-	// FileDescriptorProtos for all files in files_to_generate and everything
-	// they import.  The files will appear in topological order, so each file
-	// appears before any file that imports it.
-	//
-	// protoc guarantees that all proto_files will be written after
-	// the fields above, even though this is not technically guaranteed by the
-	// protobuf wire format.  This theoretically could allow a plugin to stream
-	// in the FileDescriptorProtos and handle them one by one rather than read
-	// the entire set into memory at once.  However, as of this writing, this
-	// is not similarly optimized on protoc's end -- it will store all fields in
-	// memory at once before sending them to the plugin.
-	ProtoFile        []*google_protobuf.FileDescriptorProto `protobuf:"bytes,15,rep,name=proto_file,json=protoFile" json:"proto_file,omitempty"`
-	XXX_unrecognized []byte                                 `json:"-"`
-}
-
-func (m *CodeGeneratorRequest) Reset()                    { *m = CodeGeneratorRequest{} }
-func (m *CodeGeneratorRequest) String() string            { return proto.CompactTextString(m) }
-func (*CodeGeneratorRequest) ProtoMessage()               {}
-func (*CodeGeneratorRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-
-func (m *CodeGeneratorRequest) GetFileToGenerate() []string {
-	if m != nil {
-		return m.FileToGenerate
-	}
-	return nil
-}
-
-func (m *CodeGeneratorRequest) GetParameter() string {
-	if m != nil && m.Parameter != nil {
-		return *m.Parameter
-	}
-	return ""
-}
-
-func (m *CodeGeneratorRequest) GetProtoFile() []*google_protobuf.FileDescriptorProto {
-	if m != nil {
-		return m.ProtoFile
-	}
-	return nil
-}
-
-// The plugin writes an encoded CodeGeneratorResponse to stdout.
-type CodeGeneratorResponse struct {
-	// Error message.  If non-empty, code generation failed.  The plugin process
-	// should exit with status code zero even if it reports an error in this way.
-	//
-	// This should be used to indicate errors in .proto files which prevent the
-	// code generator from generating correct code.  Errors which indicate a
-	// problem in protoc itself -- such as the input CodeGeneratorRequest being
-	// unparseable -- should be reported by writing a message to stderr and
-	// exiting with a non-zero status code.
-	Error            *string                       `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
-	File             []*CodeGeneratorResponse_File `protobuf:"bytes,15,rep,name=file" json:"file,omitempty"`
-	XXX_unrecognized []byte                        `json:"-"`
-}
-
-func (m *CodeGeneratorResponse) Reset()                    { *m = CodeGeneratorResponse{} }
-func (m *CodeGeneratorResponse) String() string            { return proto.CompactTextString(m) }
-func (*CodeGeneratorResponse) ProtoMessage()               {}
-func (*CodeGeneratorResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
-
-func (m *CodeGeneratorResponse) GetError() string {
-	if m != nil && m.Error != nil {
-		return *m.Error
-	}
-	return ""
-}
-
-func (m *CodeGeneratorResponse) GetFile() []*CodeGeneratorResponse_File {
-	if m != nil {
-		return m.File
-	}
-	return nil
-}
-
-// Represents a single generated file.
-type CodeGeneratorResponse_File struct {
-	// The file name, relative to the output directory.  The name must not
-	// contain "." or ".." components and must be relative, not be absolute (so,
-	// the file cannot lie outside the output directory).  "/" must be used as
-	// the path separator, not "\".
-	//
-	// If the name is omitted, the content will be appended to the previous
-	// file.  This allows the generator to break large files into small chunks,
-	// and allows the generated text to be streamed back to protoc so that large
-	// files need not reside completely in memory at one time.  Note that as of
-	// this writing protoc does not optimize for this -- it will read the entire
-	// CodeGeneratorResponse before writing files to disk.
-	Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	// If non-empty, indicates that the named file should already exist, and the
-	// content here is to be inserted into that file at a defined insertion
-	// point.  This feature allows a code generator to extend the output
-	// produced by another code generator.  The original generator may provide
-	// insertion points by placing special annotations in the file that look
-	// like:
-	//   @@protoc_insertion_point(NAME)
-	// The annotation can have arbitrary text before and after it on the line,
-	// which allows it to be placed in a comment.  NAME should be replaced with
-	// an identifier naming the point -- this is what other generators will use
-	// as the insertion_point.  Code inserted at this point will be placed
-	// immediately above the line containing the insertion point (thus multiple
-	// insertions to the same point will come out in the order they were added).
-	// The double-@ is intended to make it unlikely that the generated code
-	// could contain things that look like insertion points by accident.
-	//
-	// For example, the C++ code generator places the following line in the
-	// .pb.h files that it generates:
-	//   // @@protoc_insertion_point(namespace_scope)
-	// This line appears within the scope of the file's package namespace, but
-	// outside of any particular class.  Another plugin can then specify the
-	// insertion_point "namespace_scope" to generate additional classes or
-	// other declarations that should be placed in this scope.
-	//
-	// Note that if the line containing the insertion point begins with
-	// whitespace, the same whitespace will be added to every line of the
-	// inserted text.  This is useful for languages like Python, where
-	// indentation matters.  In these languages, the insertion point comment
-	// should be indented the same amount as any inserted code will need to be
-	// in order to work correctly in that context.
-	//
-	// The code generator that generates the initial file and the one which
-	// inserts into it must both run as part of a single invocation of protoc.
-	// Code generators are executed in the order in which they appear on the
-	// command line.
-	//
-	// If |insertion_point| is present, |name| must also be present.
-	InsertionPoint *string `protobuf:"bytes,2,opt,name=insertion_point,json=insertionPoint" json:"insertion_point,omitempty"`
-	// The file contents.
-	Content          *string `protobuf:"bytes,15,opt,name=content" json:"content,omitempty"`
-	XXX_unrecognized []byte  `json:"-"`
-}
-
-func (m *CodeGeneratorResponse_File) Reset()                    { *m = CodeGeneratorResponse_File{} }
-func (m *CodeGeneratorResponse_File) String() string            { return proto.CompactTextString(m) }
-func (*CodeGeneratorResponse_File) ProtoMessage()               {}
-func (*CodeGeneratorResponse_File) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1, 0} }
-
-func (m *CodeGeneratorResponse_File) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	pluginpb "google.golang.org/protobuf/types/pluginpb"
+	reflect "reflect"
+)
+
+// Symbols defined in public import of google/protobuf/compiler/plugin.proto.
+
+type CodeGeneratorResponse_Feature = pluginpb.CodeGeneratorResponse_Feature
+
+const CodeGeneratorResponse_FEATURE_NONE = pluginpb.CodeGeneratorResponse_FEATURE_NONE
+const CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL = pluginpb.CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL
+const CodeGeneratorResponse_FEATURE_SUPPORTS_EDITIONS = pluginpb.CodeGeneratorResponse_FEATURE_SUPPORTS_EDITIONS
+
+var CodeGeneratorResponse_Feature_name = pluginpb.CodeGeneratorResponse_Feature_name
+var CodeGeneratorResponse_Feature_value = pluginpb.CodeGeneratorResponse_Feature_value
+
+type Version = pluginpb.Version
+type CodeGeneratorRequest = pluginpb.CodeGeneratorRequest
+type CodeGeneratorResponse = pluginpb.CodeGeneratorResponse
+type CodeGeneratorResponse_File = pluginpb.CodeGeneratorResponse_File
+
+var File_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto protoreflect.FileDescriptor
+
+var file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_rawDesc = []byte{
+	0x0a, 0x3c, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
+	0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x63, 0x2d, 0x67, 0x65, 0x6e, 0x2d, 0x67, 0x6f, 0x2f, 0x70, 0x6c, 0x75, 0x67, 0x69,
+	0x6e, 0x2f, 0x70, 0x6c, 0x75, 0x67, 0x69, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x25,
+	0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f,
+	0x63, 0x6f, 0x6d, 0x70, 0x69, 0x6c, 0x65, 0x72, 0x2f, 0x70, 0x6c, 0x75, 0x67, 0x69, 0x6e, 0x2e,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x42, 0x3b, 0x5a, 0x39, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e,
+	0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x62, 0x75, 0x66, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x2d, 0x67, 0x65, 0x6e, 0x2d, 0x67,
+	0x6f, 0x2f, 0x70, 0x6c, 0x75, 0x67, 0x69, 0x6e, 0x3b, 0x70, 0x6c, 0x75, 0x67, 0x69, 0x6e, 0x5f,
+	0x67, 0x6f, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x32,
 }
 
-func (m *CodeGeneratorResponse_File) GetInsertionPoint() string {
-	if m != nil && m.InsertionPoint != nil {
-		return *m.InsertionPoint
-	}
-	return ""
+var file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_goTypes = []interface{}{}
+var file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
 }
 
-func (m *CodeGeneratorResponse_File) GetContent() string {
-	if m != nil && m.Content != nil {
-		return *m.Content
+func init() { file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_init() }
+func file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_init() {
+	if File_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto != nil {
+		return
 	}
-	return ""
-}
-
-func init() {
-	proto.RegisterType((*CodeGeneratorRequest)(nil), "google.protobuf.compiler.CodeGeneratorRequest")
-	proto.RegisterType((*CodeGeneratorResponse)(nil), "google.protobuf.compiler.CodeGeneratorResponse")
-	proto.RegisterType((*CodeGeneratorResponse_File)(nil), "google.protobuf.compiler.CodeGeneratorResponse.File")
-}
-
-func init() { proto.RegisterFile("google/protobuf/compiler/plugin.proto", fileDescriptor0) }
-
-var fileDescriptor0 = []byte{
-	// 310 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x74, 0x51, 0xc1, 0x4a, 0xc3, 0x40,
-	0x10, 0x25, 0xb6, 0x22, 0x19, 0xa5, 0x95, 0xa5, 0xc2, 0x52, 0x7a, 0x08, 0x45, 0x31, 0xa7, 0x14,
-	0x44, 0xf0, 0xde, 0x8a, 0x7a, 0x2c, 0xc1, 0x93, 0x20, 0x21, 0xa6, 0xd3, 0xb0, 0x90, 0xec, 0xac,
-	0xb3, 0xdb, 0x2f, 0xf2, 0x9f, 0xfc, 0x1e, 0xd9, 0x4d, 0x5b, 0xa5, 0xd8, 0xdb, 0xce, 0x7b, 0x6f,
-	0xe6, 0xbd, 0x9d, 0x81, 0x9b, 0x9a, 0xa8, 0x6e, 0x70, 0x66, 0x98, 0x1c, 0x7d, 0x6c, 0xd6, 0xb3,
-	0x8a, 0x5a, 0xa3, 0x1a, 0xe4, 0x99, 0x69, 0x36, 0xb5, 0xd2, 0x59, 0x20, 0x84, 0xec, 0x64, 0xd9,
-	0x4e, 0x96, 0xed, 0x64, 0xe3, 0xe4, 0x70, 0xc0, 0x0a, 0x6d, 0xc5, 0xca, 0x38, 0xe2, 0x4e, 0x3d,
-	0xfd, 0x8a, 0x60, 0xb4, 0xa0, 0x15, 0x3e, 0xa3, 0x46, 0x2e, 0x1d, 0x71, 0x8e, 0x9f, 0x1b, 0xb4,
-	0x4e, 0xa4, 0x70, 0xb9, 0x56, 0x0d, 0x16, 0x8e, 0x8a, 0xba, 0xe3, 0x50, 0x46, 0x49, 0x2f, 0x8d,
-	0xf3, 0x81, 0xc7, 0x5f, 0x69, 0xdb, 0x81, 0x62, 0x02, 0xb1, 0x29, 0xb9, 0x6c, 0xd1, 0x21, 0xcb,
-	0x93, 0x24, 0x4a, 0xe3, 0xfc, 0x17, 0x10, 0x0b, 0x80, 0xe0, 0x54, 0xf8, 0x2e, 0x39, 0x4c, 0x7a,
-	0xe9, 0xf9, 0xdd, 0x75, 0x76, 0x98, 0xf8, 0x49, 0x35, 0xf8, 0xb8, 0xcf, 0xb6, 0xf4, 0x70, 0x1e,
-	0x07, 0xd6, 0x33, 0xd3, 0xef, 0x08, 0xae, 0x0e, 0x52, 0x5a, 0x43, 0xda, 0xa2, 0x18, 0xc1, 0x29,
-	0x32, 0x13, 0xcb, 0x28, 0x18, 0x77, 0x85, 0x78, 0x81, 0xfe, 0x1f, 0xbb, 0xfb, 0xec, 0xd8, 0x82,
-	0xb2, 0x7f, 0x87, 0x86, 0x34, 0x79, 0x98, 0x30, 0x7e, 0x87, 0xbe, 0xaf, 0x84, 0x80, 0xbe, 0x2e,
-	0x5b, 0xdc, 0xda, 0x84, 0xb7, 0xb8, 0x85, 0xa1, 0xd2, 0x16, 0xd9, 0x29, 0xd2, 0x85, 0x21, 0xa5,
-	0xdd, 0xf6, 0xfb, 0x83, 0x3d, 0xbc, 0xf4, 0xa8, 0x90, 0x70, 0x56, 0x91, 0x76, 0xa8, 0x9d, 0x1c,
-	0x06, 0xc1, 0xae, 0x9c, 0x3f, 0xc0, 0xa4, 0xa2, 0xf6, 0x68, 0xbe, 0xf9, 0xc5, 0x32, 0x1c, 0x3a,
-	0x2c, 0xc4, 0xbe, 0xc5, 0xdd, 0xd9, 0x8b, 0x9a, 0x7e, 0x02, 0x00, 0x00, 0xff, 0xff, 0x83, 0x7b,
-	0x5c, 0x7c, 0x1b, 0x02, 0x00, 0x00,
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   0,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_goTypes,
+		DependencyIndexes: file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_depIdxs,
+	}.Build()
+	File_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto = out.File
+	file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_rawDesc = nil
+	file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_goTypes = nil
+	file_github_com_golang_protobuf_protoc_gen_go_plugin_plugin_proto_depIdxs = nil
 }
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden b/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden
deleted file mode 100644
index 8953d0ff..00000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden
+++ /dev/null
@@ -1,83 +0,0 @@
-// Code generated by protoc-gen-go.
-// source: google/protobuf/compiler/plugin.proto
-// DO NOT EDIT!
-
-package google_protobuf_compiler
-
-import proto "github.com/golang/protobuf/proto"
-import "math"
-import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
-
-// Reference proto and math imports to suppress error if they are not otherwise used.
-var _ = proto.GetString
-var _ = math.Inf
-
-type CodeGeneratorRequest struct {
-	FileToGenerate   []string                               `protobuf:"bytes,1,rep,name=file_to_generate" json:"file_to_generate,omitempty"`
-	Parameter        *string                                `protobuf:"bytes,2,opt,name=parameter" json:"parameter,omitempty"`
-	ProtoFile        []*google_protobuf.FileDescriptorProto `protobuf:"bytes,15,rep,name=proto_file" json:"proto_file,omitempty"`
-	XXX_unrecognized []byte                                 `json:"-"`
-}
-
-func (this *CodeGeneratorRequest) Reset()         { *this = CodeGeneratorRequest{} }
-func (this *CodeGeneratorRequest) String() string { return proto.CompactTextString(this) }
-func (*CodeGeneratorRequest) ProtoMessage()       {}
-
-func (this *CodeGeneratorRequest) GetParameter() string {
-	if this != nil && this.Parameter != nil {
-		return *this.Parameter
-	}
-	return ""
-}
-
-type CodeGeneratorResponse struct {
-	Error            *string                       `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
-	File             []*CodeGeneratorResponse_File `protobuf:"bytes,15,rep,name=file" json:"file,omitempty"`
-	XXX_unrecognized []byte                        `json:"-"`
-}
-
-func (this *CodeGeneratorResponse) Reset()         { *this = CodeGeneratorResponse{} }
-func (this *CodeGeneratorResponse) String() string { return proto.CompactTextString(this) }
-func (*CodeGeneratorResponse) ProtoMessage()       {}
-
-func (this *CodeGeneratorResponse) GetError() string {
-	if this != nil && this.Error != nil {
-		return *this.Error
-	}
-	return ""
-}
-
-type CodeGeneratorResponse_File struct {
-	Name             *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	InsertionPoint   *string `protobuf:"bytes,2,opt,name=insertion_point" json:"insertion_point,omitempty"`
-	Content          *string `protobuf:"bytes,15,opt,name=content" json:"content,omitempty"`
-	XXX_unrecognized []byte  `json:"-"`
-}
-
-func (this *CodeGeneratorResponse_File) Reset()         { *this = CodeGeneratorResponse_File{} }
-func (this *CodeGeneratorResponse_File) String() string { return proto.CompactTextString(this) }
-func (*CodeGeneratorResponse_File) ProtoMessage()       {}
-
-func (this *CodeGeneratorResponse_File) GetName() string {
-	if this != nil && this.Name != nil {
-		return *this.Name
-	}
-	return ""
-}
-
-func (this *CodeGeneratorResponse_File) GetInsertionPoint() string {
-	if this != nil && this.InsertionPoint != nil {
-		return *this.InsertionPoint
-	}
-	return ""
-}
-
-func (this *CodeGeneratorResponse_File) GetContent() string {
-	if this != nil && this.Content != nil {
-		return *this.Content
-	}
-	return ""
-}
-
-func init() {
-}
diff --git a/vendor/github.com/gorilla/context/LICENSE b/vendor/github.com/gorilla/context/LICENSE
deleted file mode 100644
index 0e5fb872..00000000
--- a/vendor/github.com/gorilla/context/LICENSE
+++ /dev/null
@@ -1,27 +0,0 @@
-Copyright (c) 2012 Rodrigo Moraes. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-	 * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-	 * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-	 * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/gorilla/context/README.md b/vendor/github.com/gorilla/context/README.md
deleted file mode 100644
index c60a31b0..00000000
--- a/vendor/github.com/gorilla/context/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-context
-=======
-[![Build Status](https://travis-ci.org/gorilla/context.png?branch=master)](https://travis-ci.org/gorilla/context)
-
-gorilla/context is a general purpose registry for global request variables.
-
-Read the full documentation here: http://www.gorillatoolkit.org/pkg/context
diff --git a/vendor/github.com/gorilla/context/context.go b/vendor/github.com/gorilla/context/context.go
deleted file mode 100644
index 81cb128b..00000000
--- a/vendor/github.com/gorilla/context/context.go
+++ /dev/null
@@ -1,143 +0,0 @@
-// Copyright 2012 The Gorilla Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package context
-
-import (
-	"net/http"
-	"sync"
-	"time"
-)
-
-var (
-	mutex sync.RWMutex
-	data  = make(map[*http.Request]map[interface{}]interface{})
-	datat = make(map[*http.Request]int64)
-)
-
-// Set stores a value for a given key in a given request.
-func Set(r *http.Request, key, val interface{}) {
-	mutex.Lock()
-	if data[r] == nil {
-		data[r] = make(map[interface{}]interface{})
-		datat[r] = time.Now().Unix()
-	}
-	data[r][key] = val
-	mutex.Unlock()
-}
-
-// Get returns a value stored for a given key in a given request.
-func Get(r *http.Request, key interface{}) interface{} {
-	mutex.RLock()
-	if ctx := data[r]; ctx != nil {
-		value := ctx[key]
-		mutex.RUnlock()
-		return value
-	}
-	mutex.RUnlock()
-	return nil
-}
-
-// GetOk returns stored value and presence state like multi-value return of map access.
-func GetOk(r *http.Request, key interface{}) (interface{}, bool) {
-	mutex.RLock()
-	if _, ok := data[r]; ok {
-		value, ok := data[r][key]
-		mutex.RUnlock()
-		return value, ok
-	}
-	mutex.RUnlock()
-	return nil, false
-}
-
-// GetAll returns all stored values for the request as a map. Nil is returned for invalid requests.
-func GetAll(r *http.Request) map[interface{}]interface{} {
-	mutex.RLock()
-	if context, ok := data[r]; ok {
-		result := make(map[interface{}]interface{}, len(context))
-		for k, v := range context {
-			result[k] = v
-		}
-		mutex.RUnlock()
-		return result
-	}
-	mutex.RUnlock()
-	return nil
-}
-
-// GetAllOk returns all stored values for the request as a map and a boolean value that indicates if
-// the request was registered.
-func GetAllOk(r *http.Request) (map[interface{}]interface{}, bool) {
-	mutex.RLock()
-	context, ok := data[r]
-	result := make(map[interface{}]interface{}, len(context))
-	for k, v := range context {
-		result[k] = v
-	}
-	mutex.RUnlock()
-	return result, ok
-}
-
-// Delete removes a value stored for a given key in a given request.
-func Delete(r *http.Request, key interface{}) {
-	mutex.Lock()
-	if data[r] != nil {
-		delete(data[r], key)
-	}
-	mutex.Unlock()
-}
-
-// Clear removes all values stored for a given request.
-//
-// This is usually called by a handler wrapper to clean up request
-// variables at the end of a request lifetime. See ClearHandler().
-func Clear(r *http.Request) {
-	mutex.Lock()
-	clear(r)
-	mutex.Unlock()
-}
-
-// clear is Clear without the lock.
-func clear(r *http.Request) {
-	delete(data, r)
-	delete(datat, r)
-}
-
-// Purge removes request data stored for longer than maxAge, in seconds.
-// It returns the amount of requests removed.
-//
-// If maxAge <= 0, all request data is removed.
-//
-// This is only used for sanity check: in case context cleaning was not
-// properly set some request data can be kept forever, consuming an increasing
-// amount of memory. In case this is detected, Purge() must be called
-// periodically until the problem is fixed.
-func Purge(maxAge int) int {
-	mutex.Lock()
-	count := 0
-	if maxAge <= 0 {
-		count = len(data)
-		data = make(map[*http.Request]map[interface{}]interface{})
-		datat = make(map[*http.Request]int64)
-	} else {
-		min := time.Now().Unix() - int64(maxAge)
-		for r := range data {
-			if datat[r] < min {
-				clear(r)
-				count++
-			}
-		}
-	}
-	mutex.Unlock()
-	return count
-}
-
-// ClearHandler wraps an http.Handler and clears request values at the end
-// of a request lifetime.
-func ClearHandler(h http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		defer Clear(r)
-		h.ServeHTTP(w, r)
-	})
-}
diff --git a/vendor/github.com/gorilla/context/doc.go b/vendor/github.com/gorilla/context/doc.go
deleted file mode 100644
index 73c74003..00000000
--- a/vendor/github.com/gorilla/context/doc.go
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright 2012 The Gorilla Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package context stores values shared during a request lifetime.
-
-For example, a router can set variables extracted from the URL and later
-application handlers can access those values, or it can be used to store
-sessions values to be saved at the end of a request. There are several
-others common uses.
-
-The idea was posted by Brad Fitzpatrick to the go-nuts mailing list:
-
-	http://groups.google.com/group/golang-nuts/msg/e2d679d303aa5d53
-
-Here's the basic usage: first define the keys that you will need. The key
-type is interface{} so a key can be of any type that supports equality.
-Here we define a key using a custom int type to avoid name collisions:
-
-	package foo
-
-	import (
-		"github.com/gorilla/context"
-	)
-
-	type key int
-
-	const MyKey key = 0
-
-Then set a variable. Variables are bound to an http.Request object, so you
-need a request instance to set a value:
-
-	context.Set(r, MyKey, "bar")
-
-The application can later access the variable using the same key you provided:
-
-	func MyHandler(w http.ResponseWriter, r *http.Request) {
-		// val is "bar".
-		val := context.Get(r, foo.MyKey)
-
-		// returns ("bar", true)
-		val, ok := context.GetOk(r, foo.MyKey)
-		// ...
-	}
-
-And that's all about the basic usage. We discuss some other ideas below.
-
-Any type can be stored in the context. To enforce a given type, make the key
-private and wrap Get() and Set() to accept and return values of a specific
-type:
-
-	type key int
-
-	const mykey key = 0
-
-	// GetMyKey returns a value for this package from the request values.
-	func GetMyKey(r *http.Request) SomeType {
-		if rv := context.Get(r, mykey); rv != nil {
-			return rv.(SomeType)
-		}
-		return nil
-	}
-
-	// SetMyKey sets a value for this package in the request values.
-	func SetMyKey(r *http.Request, val SomeType) {
-		context.Set(r, mykey, val)
-	}
-
-Variables must be cleared at the end of a request, to remove all values
-that were stored. This can be done in an http.Handler, after a request was
-served. Just call Clear() passing the request:
-
-	context.Clear(r)
-
-...or use ClearHandler(), which conveniently wraps an http.Handler to clear
-variables at the end of a request lifetime.
-
-The Routers from the packages gorilla/mux and gorilla/pat call Clear()
-so if you are using either of them you don't need to clear the context manually.
-*/
-package context
diff --git a/vendor/github.com/gorilla/handlers/LICENSE b/vendor/github.com/gorilla/handlers/LICENSE
index 66ea3c8a..bb9d80bc 100644
--- a/vendor/github.com/gorilla/handlers/LICENSE
+++ b/vendor/github.com/gorilla/handlers/LICENSE
@@ -1,22 +1,27 @@
-Copyright (c) 2013 The Gorilla Handlers Authors. All rights reserved.
+Copyright (c) 2023 The Gorilla Authors. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
+modification, are permitted provided that the following conditions are
+met:
 
-  Redistributions of source code must retain the above copyright notice, this
-  list of conditions and the following disclaimer.
+	 * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+	 * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+	 * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
 
-  Redistributions in binary form must reproduce the above copyright notice,
-  this list of conditions and the following disclaimer in the documentation
-  and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/gorilla/handlers/README.md b/vendor/github.com/gorilla/handlers/README.md
index a782c415..02555b26 100644
--- a/vendor/github.com/gorilla/handlers/README.md
+++ b/vendor/github.com/gorilla/handlers/README.md
@@ -1,6 +1,9 @@
-gorilla/handlers
-================
-[![GoDoc](https://godoc.org/github.com/gorilla/handlers?status.svg)](https://godoc.org/github.com/gorilla/handlers) [![Build Status](https://travis-ci.org/gorilla/handlers.svg?branch=master)](https://travis-ci.org/gorilla/handlers)
+# gorilla/handlers
+
+![Testing](https://github.com/gorilla/handlers/actions/workflows/test.yml/badge.svg)
+[![Codecov](https://codecov.io/github/gorilla/handlers/branch/main/graph/badge.svg)](https://codecov.io/github/gorilla/handlers)
+[![GoDoc](https://godoc.org/github.com/gorilla/handlers?status.svg)](https://godoc.org/github.com/gorilla/handlers)
+[![Sourcegraph](https://sourcegraph.com/github.com/gorilla/handlers/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/handlers?badge)
 
 Package handlers is a collection of handlers (aka "HTTP middleware") for use
 with Go's `net/http` package (or any framework supporting `http.Handler`), including:
@@ -23,7 +26,7 @@ with Go's `net/http` package (or any framework supporting `http.Handler`), inclu
 * [**RecoveryHandler**](https://godoc.org/github.com/gorilla/handlers#RecoveryHandler) for recovering from unexpected panics.
 
 Other handlers are documented [on the Gorilla
-website](http://www.gorillatoolkit.org/pkg/handlers).
+website](https://www.gorillatoolkit.org/pkg/handlers).
 
 ## Example
 
diff --git a/vendor/github.com/gorilla/handlers/canonical.go b/vendor/github.com/gorilla/handlers/canonical.go
index 8437fefc..7121f530 100644
--- a/vendor/github.com/gorilla/handlers/canonical.go
+++ b/vendor/github.com/gorilla/handlers/canonical.go
@@ -21,12 +21,11 @@ type canonical struct {
 //
 // Example:
 //
-//  r := mux.NewRouter()
-//  canonical := handlers.CanonicalHost("http://www.gorillatoolkit.org", 302)
-//  r.HandleFunc("/route", YourHandler)
-//
-//  log.Fatal(http.ListenAndServe(":7000", canonical(r)))
+//	r := mux.NewRouter()
+//	canonical := handlers.CanonicalHost("http://www.gorillatoolkit.org", 302)
+//	r.HandleFunc("/route", YourHandler)
 //
+//	log.Fatal(http.ListenAndServe(":7000", canonical(r)))
 func CanonicalHost(domain string, code int) func(h http.Handler) http.Handler {
 	fn := func(h http.Handler) http.Handler {
 		return canonical{h, domain, code}
diff --git a/vendor/github.com/gorilla/handlers/compress.go b/vendor/github.com/gorilla/handlers/compress.go
index e8345d79..d6f58950 100644
--- a/vendor/github.com/gorilla/handlers/compress.go
+++ b/vendor/github.com/gorilla/handlers/compress.go
@@ -10,47 +10,48 @@ import (
 	"io"
 	"net/http"
 	"strings"
+
+	"github.com/felixge/httpsnoop"
 )
 
-type compressResponseWriter struct {
-	io.Writer
-	http.ResponseWriter
-	http.Hijacker
-	http.Flusher
-	http.CloseNotifier
-}
+const acceptEncoding string = "Accept-Encoding"
 
-func (w *compressResponseWriter) WriteHeader(c int) {
-	w.ResponseWriter.Header().Del("Content-Length")
-	w.ResponseWriter.WriteHeader(c)
+type compressResponseWriter struct {
+	compressor io.Writer
+	w          http.ResponseWriter
 }
 
-func (w *compressResponseWriter) Header() http.Header {
-	return w.ResponseWriter.Header()
+func (cw *compressResponseWriter) WriteHeader(c int) {
+	cw.w.Header().Del("Content-Length")
+	cw.w.WriteHeader(c)
 }
 
-func (w *compressResponseWriter) Write(b []byte) (int, error) {
-	h := w.ResponseWriter.Header()
+func (cw *compressResponseWriter) Write(b []byte) (int, error) {
+	h := cw.w.Header()
 	if h.Get("Content-Type") == "" {
 		h.Set("Content-Type", http.DetectContentType(b))
 	}
 	h.Del("Content-Length")
 
-	return w.Writer.Write(b)
+	return cw.compressor.Write(b)
+}
+
+func (cw *compressResponseWriter) ReadFrom(r io.Reader) (int64, error) {
+	return io.Copy(cw.compressor, r)
 }
 
 type flusher interface {
 	Flush() error
 }
 
-func (w *compressResponseWriter) Flush() {
+func (cw *compressResponseWriter) Flush() {
 	// Flush compressed data if compressor supports it.
-	if f, ok := w.Writer.(flusher); ok {
-		f.Flush()
+	if f, ok := cw.compressor.(flusher); ok {
+		_ = f.Flush()
 	}
 	// Flush HTTP response.
-	if w.Flusher != nil {
-		w.Flusher.Flush()
+	if f, ok := cw.w.(http.Flusher); ok {
+		f.Flush()
 	}
 }
 
@@ -74,75 +75,69 @@ func CompressHandlerLevel(h http.Handler, level int) http.Handler {
 		level = gzip.DefaultCompression
 	}
 
+	const (
+		gzipEncoding  = "gzip"
+		flateEncoding = "deflate"
+	)
+
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-	L:
-		for _, enc := range strings.Split(r.Header.Get("Accept-Encoding"), ",") {
-			switch strings.TrimSpace(enc) {
-			case "gzip":
-				w.Header().Set("Content-Encoding", "gzip")
-				w.Header().Add("Vary", "Accept-Encoding")
-
-				gw, _ := gzip.NewWriterLevel(w, level)
-				defer gw.Close()
-
-				h, hok := w.(http.Hijacker)
-				if !hok { /* w is not Hijacker... oh well... */
-					h = nil
-				}
-
-				f, fok := w.(http.Flusher)
-				if !fok {
-					f = nil
-				}
-
-				cn, cnok := w.(http.CloseNotifier)
-				if !cnok {
-					cn = nil
-				}
-
-				w = &compressResponseWriter{
-					Writer:         gw,
-					ResponseWriter: w,
-					Hijacker:       h,
-					Flusher:        f,
-					CloseNotifier:  cn,
-				}
-
-				break L
-			case "deflate":
-				w.Header().Set("Content-Encoding", "deflate")
-				w.Header().Add("Vary", "Accept-Encoding")
-
-				fw, _ := flate.NewWriter(w, level)
-				defer fw.Close()
-
-				h, hok := w.(http.Hijacker)
-				if !hok { /* w is not Hijacker... oh well... */
-					h = nil
-				}
-
-				f, fok := w.(http.Flusher)
-				if !fok {
-					f = nil
-				}
-
-				cn, cnok := w.(http.CloseNotifier)
-				if !cnok {
-					cn = nil
-				}
-
-				w = &compressResponseWriter{
-					Writer:         fw,
-					ResponseWriter: w,
-					Hijacker:       h,
-					Flusher:        f,
-					CloseNotifier:  cn,
-				}
-
-				break L
+		// detect what encoding to use
+		var encoding string
+		for _, curEnc := range strings.Split(r.Header.Get(acceptEncoding), ",") {
+			curEnc = strings.TrimSpace(curEnc)
+			if curEnc == gzipEncoding || curEnc == flateEncoding {
+				encoding = curEnc
+				break
 			}
 		}
 
+		// always add Accept-Encoding to Vary to prevent intermediate caches corruption
+		w.Header().Add("Vary", acceptEncoding)
+
+		// if we weren't able to identify an encoding we're familiar with, pass on the
+		// request to the handler and return
+		if encoding == "" {
+			h.ServeHTTP(w, r)
+			return
+		}
+
+		if r.Header.Get("Upgrade") != "" {
+			h.ServeHTTP(w, r)
+			return
+		}
+
+		// wrap the ResponseWriter with the writer for the chosen encoding
+		var encWriter io.WriteCloser
+		if encoding == gzipEncoding {
+			encWriter, _ = gzip.NewWriterLevel(w, level)
+		} else if encoding == flateEncoding {
+			encWriter, _ = flate.NewWriter(w, level)
+		}
+		defer encWriter.Close()
+
+		w.Header().Set("Content-Encoding", encoding)
+		r.Header.Del(acceptEncoding)
+
+		cw := &compressResponseWriter{
+			w:          w,
+			compressor: encWriter,
+		}
+
+		w = httpsnoop.Wrap(w, httpsnoop.Hooks{
+			Write: func(httpsnoop.WriteFunc) httpsnoop.WriteFunc {
+				return cw.Write
+			},
+			WriteHeader: func(httpsnoop.WriteHeaderFunc) httpsnoop.WriteHeaderFunc {
+				return cw.WriteHeader
+			},
+			Flush: func(httpsnoop.FlushFunc) httpsnoop.FlushFunc {
+				return cw.Flush
+			},
+			ReadFrom: func(rff httpsnoop.ReadFromFunc) httpsnoop.ReadFromFunc {
+				return cw.ReadFrom
+			},
+		})
+
 		h.ServeHTTP(w, r)
 	})
 }
diff --git a/vendor/github.com/gorilla/handlers/cors.go b/vendor/github.com/gorilla/handlers/cors.go
index 1f92d1ad..8af9c096 100644
--- a/vendor/github.com/gorilla/handlers/cors.go
+++ b/vendor/github.com/gorilla/handlers/cors.go
@@ -19,19 +19,21 @@ type cors struct {
 	maxAge                 int
 	ignoreOptions          bool
 	allowCredentials       bool
+	optionStatusCode       int
 }
 
 // OriginValidator takes an origin string and returns whether or not that origin is allowed.
 type OriginValidator func(string) bool
 
 var (
-	defaultCorsMethods = []string{"GET", "HEAD", "POST"}
-	defaultCorsHeaders = []string{"Accept", "Accept-Language", "Content-Language", "Origin"}
-	// (WebKit/Safari v9 sends the Origin header by default in AJAX requests)
+	defaultCorsOptionStatusCode = http.StatusOK
+	defaultCorsMethods          = []string{http.MethodGet, http.MethodHead, http.MethodPost}
+	defaultCorsHeaders          = []string{"Accept", "Accept-Language", "Content-Language", "Origin"}
+	// (WebKit/Safari v9 sends the Origin header by default in AJAX requests).
 )
 
 const (
-	corsOptionMethod           string = "OPTIONS"
+	corsOptionMethod           string = http.MethodOptions
 	corsAllowOriginHeader      string = "Access-Control-Allow-Origin"
 	corsExposeHeadersHeader    string = "Access-Control-Expose-Headers"
 	corsMaxAgeHeader           string = "Access-Control-Max-Age"
@@ -48,7 +50,10 @@ const (
 func (ch *cors) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	origin := r.Header.Get(corsOriginHeader)
 	if !ch.isOriginAllowed(origin) {
-		ch.h.ServeHTTP(w, r)
+		if r.Method != corsOptionMethod || ch.ignoreOptions {
+			ch.h.ServeHTTP(w, r)
+		}
+
 		return
 	}
 
@@ -96,10 +101,8 @@ func (ch *cors) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		if !ch.isMatch(method, defaultCorsMethods) {
 			w.Header().Set(corsAllowMethodsHeader, method)
 		}
-	} else {
-		if len(ch.exposedHeaders) > 0 {
-			w.Header().Set(corsExposeHeadersHeader, strings.Join(ch.exposedHeaders, ","))
-		}
+	} else if len(ch.exposedHeaders) > 0 {
+		w.Header().Set(corsExposeHeadersHeader, strings.Join(ch.exposedHeaders, ","))
 	}
 
 	if ch.allowCredentials {
@@ -110,9 +113,24 @@ func (ch *cors) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set(corsVaryHeader, corsOriginHeader)
 	}
 
-	w.Header().Set(corsAllowOriginHeader, origin)
+	returnOrigin := origin
+	if ch.allowedOriginValidator == nil && len(ch.allowedOrigins) == 0 {
+		returnOrigin = "*"
+	} else {
+		for _, o := range ch.allowedOrigins {
+			// A configuration of * is different than explicitly setting an allowed
+			// origin. Returning arbitrary origin headers in an access control allow
+			// origin header is unsafe and is not required by any use case.
+			if o == corsOriginMatchAll {
+				returnOrigin = "*"
+				break
+			}
+		}
+	}
+	w.Header().Set(corsAllowOriginHeader, returnOrigin)
 
 	if r.Method == corsOptionMethod {
+		w.WriteHeader(ch.optionStatusCode)
 		return
 	}
 	ch.h.ServeHTTP(w, r)
@@ -121,22 +139,21 @@ func (ch *cors) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 // CORS provides Cross-Origin Resource Sharing middleware.
 // Example:
 //
-//  import (
-//      "net/http"
+//	import (
+//	    "net/http"
 //
-//      "github.com/gorilla/handlers"
-//      "github.com/gorilla/mux"
-//  )
+//	    "github.com/gorilla/handlers"
+//	    "github.com/gorilla/mux"
+//	)
 //
-//  func main() {
-//      r := mux.NewRouter()
-//      r.HandleFunc("/users", UserEndpoint)
-//      r.HandleFunc("/projects", ProjectEndpoint)
-//
-//      // Apply the CORS middleware to our top-level router, with the defaults.
-//      http.ListenAndServe(":8000", handlers.CORS()(r))
-//  }
+//	func main() {
+//	    r := mux.NewRouter()
+//	    r.HandleFunc("/users", UserEndpoint)
+//	    r.HandleFunc("/projects", ProjectEndpoint)
 //
+//	    // Apply the CORS middleware to our top-level router, with the defaults.
+//	    http.ListenAndServe(":8000", handlers.CORS()(r))
+//	}
 func CORS(opts ...CORSOption) func(http.Handler) http.Handler {
 	return func(h http.Handler) http.Handler {
 		ch := parseCORSOptions(opts...)
@@ -147,13 +164,14 @@ func CORS(opts ...CORSOption) func(http.Handler) http.Handler {
 
 func parseCORSOptions(opts ...CORSOption) *cors {
 	ch := &cors{
-		allowedMethods: defaultCorsMethods,
-		allowedHeaders: defaultCorsHeaders,
-		allowedOrigins: []string{corsOriginMatchAll},
+		allowedMethods:   defaultCorsMethods,
+		allowedHeaders:   defaultCorsHeaders,
+		allowedOrigins:   []string{},
+		optionStatusCode: defaultCorsOptionStatusCode,
 	}
 
 	for _, option := range opts {
-		option(ch)
+		_ = option(ch) //TODO: @bharat-rajani, return error to caller if not nil?
 	}
 
 	return ch
@@ -234,7 +252,20 @@ func AllowedOriginValidator(fn OriginValidator) CORSOption {
 	}
 }
 
-// ExposeHeaders can be used to specify headers that are available
+// OptionStatusCode sets a custom status code on the OPTIONS requests.
+// Default behaviour sets it to 200 to reflect best practices. This is option is not mandatory
+// and can be used if you need a custom status code (i.e 204).
+//
+// More informations on the spec:
+// https://fetch.spec.whatwg.org/#cors-preflight-fetch
+func OptionStatusCode(code int) CORSOption {
+	return func(ch *cors) error {
+		ch.optionStatusCode = code
+		return nil
+	}
+}
+
+// ExposedHeaders can be used to specify headers that are available
 // and will not be stripped out by the user-agent.
 func ExposedHeaders(headers []string) CORSOption {
 	return func(ch *cors) error {
@@ -297,6 +328,10 @@ func (ch *cors) isOriginAllowed(origin string) bool {
 		return ch.allowedOriginValidator(origin)
 	}
 
+	if len(ch.allowedOrigins) == 0 {
+		return true
+	}
+
 	for _, allowedOrigin := range ch.allowedOrigins {
 		if allowedOrigin == origin || allowedOrigin == corsOriginMatchAll {
 			return true
diff --git a/vendor/github.com/gorilla/handlers/handlers.go b/vendor/github.com/gorilla/handlers/handlers.go
index 9544d2f0..9b92fce3 100644
--- a/vendor/github.com/gorilla/handlers/handlers.go
+++ b/vendor/github.com/gorilla/handlers/handlers.go
@@ -7,15 +7,10 @@ package handlers
 import (
 	"bufio"
 	"fmt"
-	"io"
 	"net"
 	"net/http"
-	"net/url"
 	"sort"
-	"strconv"
 	"strings"
-	"time"
-	"unicode/utf8"
 )
 
 // MethodHandler is an http.Handler that dispatches to a handler whose key in the
@@ -40,7 +35,7 @@ func (h MethodHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 		}
 		sort.Strings(allow)
 		w.Header().Set("Allow", strings.Join(allow, ", "))
-		if req.Method == "OPTIONS" {
+		if req.Method == http.MethodOptions {
 			w.WriteHeader(http.StatusOK)
 		} else {
 			http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
@@ -48,76 +43,15 @@ func (h MethodHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	}
 }
 
-// loggingHandler is the http.Handler implementation for LoggingHandlerTo and its
-// friends
-type loggingHandler struct {
-	writer  io.Writer
-	handler http.Handler
-}
-
-// combinedLoggingHandler is the http.Handler implementation for LoggingHandlerTo
-// and its friends
-type combinedLoggingHandler struct {
-	writer  io.Writer
-	handler http.Handler
-}
-
-func (h loggingHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	t := time.Now()
-	logger := makeLogger(w)
-	url := *req.URL
-	h.handler.ServeHTTP(logger, req)
-	writeLog(h.writer, req, url, t, logger.Status(), logger.Size())
-}
-
-func (h combinedLoggingHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	t := time.Now()
-	logger := makeLogger(w)
-	url := *req.URL
-	h.handler.ServeHTTP(logger, req)
-	writeCombinedLog(h.writer, req, url, t, logger.Status(), logger.Size())
-}
-
-func makeLogger(w http.ResponseWriter) loggingResponseWriter {
-	var logger loggingResponseWriter = &responseLogger{w: w}
-	if _, ok := w.(http.Hijacker); ok {
-		logger = &hijackLogger{responseLogger{w: w}}
-	}
-	h, ok1 := logger.(http.Hijacker)
-	c, ok2 := w.(http.CloseNotifier)
-	if ok1 && ok2 {
-		return hijackCloseNotifier{logger, h, c}
-	}
-	if ok2 {
-		return &closeNotifyWriter{logger, c}
-	}
-	return logger
-}
-
-type loggingResponseWriter interface {
-	http.ResponseWriter
-	http.Flusher
-	Status() int
-	Size() int
-}
-
 // responseLogger is wrapper of http.ResponseWriter that keeps track of its HTTP
-// status code and body size
+// status code and body size.
 type responseLogger struct {
 	w      http.ResponseWriter
 	status int
 	size   int
 }
 
-func (l *responseLogger) Header() http.Header {
-	return l.w.Header()
-}
-
 func (l *responseLogger) Write(b []byte) (int, error) {
-	if l.status == 0 {
-		// The status will be StatusOK if WriteHeader has not been called yet
-		l.status = http.StatusOK
-	}
 	size, err := l.w.Write(b)
 	l.size += size
 	return size, err
@@ -136,206 +70,16 @@ func (l *responseLogger) Size() int {
 	return l.size
 }
 
-func (l *responseLogger) Flush() {
-	f, ok := l.w.(http.Flusher)
-	if ok {
-		f.Flush()
-	}
-}
-
-type hijackLogger struct {
-	responseLogger
-}
-
-func (l *hijackLogger) Hijack() (net.Conn, *bufio.ReadWriter, error) {
-	h := l.responseLogger.w.(http.Hijacker)
-	conn, rw, err := h.Hijack()
-	if err == nil && l.responseLogger.status == 0 {
+func (l *responseLogger) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	conn, rw, err := l.w.(http.Hijacker).Hijack()
+	if err == nil && l.status == 0 {
 		// The status will be StatusSwitchingProtocols if there was no error and
 		// WriteHeader has not been called yet
-		l.responseLogger.status = http.StatusSwitchingProtocols
+		l.status = http.StatusSwitchingProtocols
 	}
 	return conn, rw, err
 }
 
-type closeNotifyWriter struct {
-	loggingResponseWriter
-	http.CloseNotifier
-}
-
-type hijackCloseNotifier struct {
-	loggingResponseWriter
-	http.Hijacker
-	http.CloseNotifier
-}
-
-const lowerhex = "0123456789abcdef"
-
-func appendQuoted(buf []byte, s string) []byte {
-	var runeTmp [utf8.UTFMax]byte
-	for width := 0; len(s) > 0; s = s[width:] {
-		r := rune(s[0])
-		width = 1
-		if r >= utf8.RuneSelf {
-			r, width = utf8.DecodeRuneInString(s)
-		}
-		if width == 1 && r == utf8.RuneError {
-			buf = append(buf, `\x`...)
-			buf = append(buf, lowerhex[s[0]>>4])
-			buf = append(buf, lowerhex[s[0]&0xF])
-			continue
-		}
-		if r == rune('"') || r == '\\' { // always backslashed
-			buf = append(buf, '\\')
-			buf = append(buf, byte(r))
-			continue
-		}
-		if strconv.IsPrint(r) {
-			n := utf8.EncodeRune(runeTmp[:], r)
-			buf = append(buf, runeTmp[:n]...)
-			continue
-		}
-		switch r {
-		case '\a':
-			buf = append(buf, `\a`...)
-		case '\b':
-			buf = append(buf, `\b`...)
-		case '\f':
-			buf = append(buf, `\f`...)
-		case '\n':
-			buf = append(buf, `\n`...)
-		case '\r':
-			buf = append(buf, `\r`...)
-		case '\t':
-			buf = append(buf, `\t`...)
-		case '\v':
-			buf = append(buf, `\v`...)
-		default:
-			switch {
-			case r < ' ':
-				buf = append(buf, `\x`...)
-				buf = append(buf, lowerhex[s[0]>>4])
-				buf = append(buf, lowerhex[s[0]&0xF])
-			case r > utf8.MaxRune:
-				r = 0xFFFD
-				fallthrough
-			case r < 0x10000:
-				buf = append(buf, `\u`...)
-				for s := 12; s >= 0; s -= 4 {
-					buf = append(buf, lowerhex[r>>uint(s)&0xF])
-				}
-			default:
-				buf = append(buf, `\U`...)
-				for s := 28; s >= 0; s -= 4 {
-					buf = append(buf, lowerhex[r>>uint(s)&0xF])
-				}
-			}
-		}
-	}
-	return buf
-
-}
-
-// buildCommonLogLine builds a log entry for req in Apache Common Log Format.
-// ts is the timestamp with which the entry should be logged.
-// status and size are used to provide the response HTTP status and size.
-func buildCommonLogLine(req *http.Request, url url.URL, ts time.Time, status int, size int) []byte {
-	username := "-"
-	if url.User != nil {
-		if name := url.User.Username(); name != "" {
-			username = name
-		}
-	}
-
-	host, _, err := net.SplitHostPort(req.RemoteAddr)
-
-	if err != nil {
-		host = req.RemoteAddr
-	}
-
-	uri := req.RequestURI
-
-	// Requests using the CONNECT method over HTTP/2.0 must use
-	// the authority field (aka r.Host) to identify the target.
-	// Refer: https://httpwg.github.io/specs/rfc7540.html#CONNECT
-	if req.ProtoMajor == 2 && req.Method == "CONNECT" {
-		uri = req.Host
-	}
-	if uri == "" {
-		uri = url.RequestURI()
-	}
-
-	buf := make([]byte, 0, 3*(len(host)+len(username)+len(req.Method)+len(uri)+len(req.Proto)+50)/2)
-	buf = append(buf, host...)
-	buf = append(buf, " - "...)
-	buf = append(buf, username...)
-	buf = append(buf, " ["...)
-	buf = append(buf, ts.Format("02/Jan/2006:15:04:05 -0700")...)
-	buf = append(buf, `] "`...)
-	buf = append(buf, req.Method...)
-	buf = append(buf, " "...)
-	buf = appendQuoted(buf, uri)
-	buf = append(buf, " "...)
-	buf = append(buf, req.Proto...)
-	buf = append(buf, `" `...)
-	buf = append(buf, strconv.Itoa(status)...)
-	buf = append(buf, " "...)
-	buf = append(buf, strconv.Itoa(size)...)
-	return buf
-}
-
-// writeLog writes a log entry for req to w in Apache Common Log Format.
-// ts is the timestamp with which the entry should be logged.
-// status and size are used to provide the response HTTP status and size.
-func writeLog(w io.Writer, req *http.Request, url url.URL, ts time.Time, status, size int) {
-	buf := buildCommonLogLine(req, url, ts, status, size)
-	buf = append(buf, '\n')
-	w.Write(buf)
-}
-
-// writeCombinedLog writes a log entry for req to w in Apache Combined Log Format.
-// ts is the timestamp with which the entry should be logged.
-// status and size are used to provide the response HTTP status and size.
-func writeCombinedLog(w io.Writer, req *http.Request, url url.URL, ts time.Time, status, size int) {
-	buf := buildCommonLogLine(req, url, ts, status, size)
-	buf = append(buf, ` "`...)
-	buf = appendQuoted(buf, req.Referer())
-	buf = append(buf, `" "`...)
-	buf = appendQuoted(buf, req.UserAgent())
-	buf = append(buf, '"', '\n')
-	w.Write(buf)
-}
-
-// CombinedLoggingHandler return a http.Handler that wraps h and logs requests to out in
-// Apache Combined Log Format.
-//
-// See http://httpd.apache.org/docs/2.2/logs.html#combined for a description of this format.
-//
-// LoggingHandler always sets the ident field of the log to -
-func CombinedLoggingHandler(out io.Writer, h http.Handler) http.Handler {
-	return combinedLoggingHandler{out, h}
-}
-
-// LoggingHandler return a http.Handler that wraps h and logs requests to out in
-// Apache Common Log Format (CLF).
-//
-// See http://httpd.apache.org/docs/2.2/logs.html#common for a description of this format.
-//
-// LoggingHandler always sets the ident field of the log to -
-//
-// Example:
-//
-//  r := mux.NewRouter()
-//  r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-//  	w.Write([]byte("This is a catch-all route"))
-//  })
-//  loggedRouter := handlers.LoggingHandler(os.Stdout, r)
-//  http.ListenAndServe(":1123", loggedRouter)
-//
-func LoggingHandler(out io.Writer, h http.Handler) http.Handler {
-	return loggingHandler{out, h}
-}
-
 // isContentType validates the Content-Type header matches the supplied
 // contentType. That is, its type and subtype match.
 func isContentType(h http.Header, contentType string) bool {
@@ -353,7 +97,7 @@ func isContentType(h http.Header, contentType string) bool {
 // Only PUT, POST, and PATCH requests are considered.
 func ContentTypeHandler(h http.Handler, contentTypes ...string) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if !(r.Method == "PUT" || r.Method == "POST" || r.Method == "PATCH") {
+		if !(r.Method == http.MethodPut || r.Method == http.MethodPost || r.Method == http.MethodPatch) {
 			h.ServeHTTP(w, r)
 			return
 		}
@@ -364,7 +108,10 @@ func ContentTypeHandler(h http.Handler, contentTypes ...string) http.Handler {
 				return
 			}
 		}
-		http.Error(w, fmt.Sprintf("Unsupported content type %q; expected one of %q", r.Header.Get("Content-Type"), contentTypes), http.StatusUnsupportedMediaType)
+		http.Error(w, fmt.Sprintf("Unsupported content type %q; expected one of %q",
+			r.Header.Get("Content-Type"),
+			contentTypes),
+			http.StatusUnsupportedMediaType)
 	})
 }
 
@@ -389,12 +136,12 @@ const (
 // Form method takes precedence over header method.
 func HTTPMethodOverrideHandler(h http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "POST" {
+		if r.Method == http.MethodPost {
 			om := r.FormValue(HTTPMethodOverrideFormKey)
 			if om == "" {
 				om = r.Header.Get(HTTPMethodOverrideHeader)
 			}
-			if om == "PUT" || om == "PATCH" || om == "DELETE" {
+			if om == http.MethodPut || om == http.MethodPatch || om == http.MethodDelete {
 				r.Method = om
 			}
 		}
diff --git a/vendor/github.com/gorilla/handlers/proxy_headers.go b/vendor/github.com/gorilla/handlers/proxy_headers.go
index 0be750fd..281d753e 100644
--- a/vendor/github.com/gorilla/handlers/proxy_headers.go
+++ b/vendor/github.com/gorilla/handlers/proxy_headers.go
@@ -18,7 +18,7 @@ var (
 var (
 	// RFC7239 defines a new "Forwarded: " header designed to replace the
 	// existing use of X-Forwarded-* headers.
-	// e.g. Forwarded: for=192.0.2.60;proto=https;by=203.0.113.43
+	// e.g. Forwarded: for=192.0.2.60;proto=https;by=203.0.113.43.
 	forwarded = http.CanonicalHeaderKey("Forwarded")
 	// Allows for a sub-match of the first value after 'for=' to the next
 	// comma, semi-colon or space. The match is case-insensitive.
@@ -31,8 +31,8 @@ var (
 // ProxyHeaders inspects common reverse proxy headers and sets the corresponding
 // fields in the HTTP request struct. These are X-Forwarded-For and X-Real-IP
 // for the remote (client) IP address, X-Forwarded-Proto or X-Forwarded-Scheme
-// for the scheme (http|https) and the RFC7239 Forwarded header, which may
-// include both client IPs and schemes.
+// for the scheme (http|https), X-Forwarded-Host for the host and the RFC7239
+// Forwarded header, which may include both client IPs and schemes.
 //
 // NOTE: This middleware should only be used when behind a reverse
 // proxy like nginx, HAProxy or Apache. Reverse proxies that don't (or are
@@ -67,7 +67,9 @@ func ProxyHeaders(h http.Handler) http.Handler {
 func getIP(r *http.Request) string {
 	var addr string
 
-	if fwd := r.Header.Get(xForwardedFor); fwd != "" {
+	switch {
+	case r.Header.Get(xForwardedFor) != "":
+		fwd := r.Header.Get(xForwardedFor)
 		// Only grab the first (client) address. Note that '192.168.0.1,
 		// 10.1.1.1' is a valid key for X-Forwarded-For where addresses after
 		// the first may represent forwarding proxies earlier in the chain.
@@ -76,17 +78,15 @@ func getIP(r *http.Request) string {
 			s = len(fwd)
 		}
 		addr = fwd[:s]
-	} else if fwd := r.Header.Get(xRealIP); fwd != "" {
-		// X-Real-IP should only contain one IP address (the client making the
-		// request).
-		addr = fwd
-	} else if fwd := r.Header.Get(forwarded); fwd != "" {
+	case r.Header.Get(xRealIP) != "":
+		addr = r.Header.Get(xRealIP)
+	case r.Header.Get(forwarded) != "":
 		// match should contain at least two elements if the protocol was
 		// specified in the Forwarded header. The first element will always be
 		// the 'for=' capture, which we ignore. In the case of multiple IP
 		// addresses (for=8.8.8.8, 8.8.4.4,172.16.1.20 is valid) we only
 		// extract the first, which should be the client IP.
-		if match := forRegex.FindStringSubmatch(fwd); len(match) > 1 {
+		if match := forRegex.FindStringSubmatch(r.Header.Get(forwarded)); len(match) > 1 {
 			// IPv6 addresses in Forwarded headers are quoted-strings. We strip
 			// these quotes.
 			addr = strings.Trim(match[1], `"`)
diff --git a/vendor/github.com/gorilla/handlers/recovery.go b/vendor/github.com/gorilla/handlers/recovery.go
index 65b7de58..0d4f955e 100644
--- a/vendor/github.com/gorilla/handlers/recovery.go
+++ b/vendor/github.com/gorilla/handlers/recovery.go
@@ -6,15 +6,20 @@ import (
 	"runtime/debug"
 )
 
+// RecoveryHandlerLogger is an interface used by the recovering handler to print logs.
+type RecoveryHandlerLogger interface {
+	Println(...interface{})
+}
+
 type recoveryHandler struct {
 	handler    http.Handler
-	logger     *log.Logger
+	logger     RecoveryHandlerLogger
 	printStack bool
 }
 
 // RecoveryOption provides a functional approach to define
 // configuration for a handler; such as setting the logging
-// whether or not to print strack traces on panic.
+// whether or not to print stack traces on panic.
 type RecoveryOption func(http.Handler)
 
 func parseRecoveryOptions(h http.Handler, opts ...RecoveryOption) http.Handler {
@@ -31,12 +36,12 @@ func parseRecoveryOptions(h http.Handler, opts ...RecoveryOption) http.Handler {
 //
 // Example:
 //
-//  r := mux.NewRouter()
-//  r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-//  	panic("Unexpected error!")
-//  })
+//	r := mux.NewRouter()
+//	r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+//		panic("Unexpected error!")
+//	})
 //
-//  http.ListenAndServe(":1123", handlers.RecoveryHandler()(r))
+//	http.ListenAndServe(":1123", handlers.RecoveryHandler()(r))
 func RecoveryHandler(opts ...RecoveryOption) func(h http.Handler) http.Handler {
 	return func(h http.Handler) http.Handler {
 		r := &recoveryHandler{handler: h}
@@ -45,20 +50,22 @@ func RecoveryHandler(opts ...RecoveryOption) func(h http.Handler) http.Handler {
 }
 
 // RecoveryLogger is a functional option to override
-// the default logger
-func RecoveryLogger(logger *log.Logger) RecoveryOption {
+// the default logger.
+func RecoveryLogger(logger RecoveryHandlerLogger) RecoveryOption {
 	return func(h http.Handler) {
-		r := h.(*recoveryHandler)
+		r := h.(*recoveryHandler) //nolint:errcheck //TODO:
+		// @bharat-rajani should return type-assertion error but would break the API?
 		r.logger = logger
 	}
 }
 
 // PrintRecoveryStack is a functional option to enable
 // or disable printing stack traces on panic.
-func PrintRecoveryStack(print bool) RecoveryOption {
+func PrintRecoveryStack(shouldPrint bool) RecoveryOption {
 	return func(h http.Handler) {
-		r := h.(*recoveryHandler)
-		r.printStack = print
+		r := h.(*recoveryHandler) //nolint:errcheck //TODO:
+		// @bharat-rajani should return type-assertion error but would break the API?
+		r.printStack = shouldPrint
 	}
 }
 
@@ -73,14 +80,19 @@ func (h recoveryHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	h.handler.ServeHTTP(w, req)
 }
 
-func (h recoveryHandler) log(message interface{}) {
+func (h recoveryHandler) log(v ...interface{}) {
 	if h.logger != nil {
-		h.logger.Println(message)
+		h.logger.Println(v...)
 	} else {
-		log.Println(message)
+		log.Println(v...)
 	}
 
 	if h.printStack {
-		debug.PrintStack()
+		stack := string(debug.Stack())
+		if h.logger != nil {
+			h.logger.Println(stack)
+		} else {
+			log.Println(stack)
+		}
 	}
 }
diff --git a/vendor/github.com/gorilla/mux/LICENSE b/vendor/github.com/gorilla/mux/LICENSE
index 0e5fb872..bb9d80bc 100644
--- a/vendor/github.com/gorilla/mux/LICENSE
+++ b/vendor/github.com/gorilla/mux/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2012 Rodrigo Moraes. All rights reserved.
+Copyright (c) 2023 The Gorilla Authors. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
diff --git a/vendor/github.com/gorilla/mux/README.md b/vendor/github.com/gorilla/mux/README.md
index 8dcd7188..382513d5 100644
--- a/vendor/github.com/gorilla/mux/README.md
+++ b/vendor/github.com/gorilla/mux/README.md
@@ -1,12 +1,12 @@
-gorilla/mux
-===
-[![GoDoc](https://godoc.org/github.com/gorilla/mux?status.svg)](https://godoc.org/github.com/gorilla/mux)
-[![Build Status](https://travis-ci.org/gorilla/mux.svg?branch=master)](https://travis-ci.org/gorilla/mux)
-[![Sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)
+# gorilla/mux
 
-![Gorilla Logo](http://www.gorillatoolkit.org/static/images/gorilla-icon-64.png)
+![testing](https://github.com/gorilla/mux/actions/workflows/test.yml/badge.svg)
+[![codecov](https://codecov.io/github/gorilla/mux/branch/main/graph/badge.svg)](https://codecov.io/github/gorilla/mux)
+[![godoc](https://godoc.org/github.com/gorilla/mux?status.svg)](https://godoc.org/github.com/gorilla/mux)
+[![sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)
 
-http://www.gorillatoolkit.org/pkg/mux
+
+![Gorilla Logo](https://github.com/gorilla/.github/assets/53367916/d92caabf-98e0-473e-bfbf-ab554ba435e5)
 
 Package `gorilla/mux` implements a request router and dispatcher for matching incoming requests to
 their respective handler.
@@ -25,8 +25,13 @@ The name mux stands for "HTTP request multiplexer". Like the standard `http.Serv
 * [Examples](#examples)
 * [Matching Routes](#matching-routes)
 * [Static Files](#static-files)
+* [Serving Single Page Applications](#serving-single-page-applications) (e.g. React, Vue, Ember.js, etc.)
 * [Registered URLs](#registered-urls)
 * [Walking Routes](#walking-routes)
+* [Graceful Shutdown](#graceful-shutdown)
+* [Middleware](#middleware)
+* [Handling CORS Requests](#handling-cors-requests)
+* [Testing Handlers](#testing-handlers)
 * [Full Example](#full-example)
 
 ---
@@ -45,11 +50,11 @@ Let's start registering a couple of URL paths and handlers:
 
 ```go
 func main() {
-	r := mux.NewRouter()
-	r.HandleFunc("/", HomeHandler)
-	r.HandleFunc("/products", ProductsHandler)
-	r.HandleFunc("/articles", ArticlesHandler)
-	http.Handle("/", r)
+    r := mux.NewRouter()
+    r.HandleFunc("/", HomeHandler)
+    r.HandleFunc("/products", ProductsHandler)
+    r.HandleFunc("/articles", ArticlesHandler)
+    http.Handle("/", r)
 }
 ```
 
@@ -68,9 +73,9 @@ The names are used to create a map of route variables which can be retrieved cal
 
 ```go
 func ArticlesCategoryHandler(w http.ResponseWriter, r *http.Request) {
-	vars := mux.Vars(r)
-	w.WriteHeader(http.StatusOK)
-	fmt.Fprintf(w, "Category: %v\n", vars["category"])
+    vars := mux.Vars(r)
+    w.WriteHeader(http.StatusOK)
+    fmt.Fprintf(w, "Category: %v\n", vars["category"])
 }
 ```
 
@@ -85,7 +90,7 @@ r := mux.NewRouter()
 // Only matches if domain is "www.example.com".
 r.Host("www.example.com")
 // Matches a dynamic subdomain.
-r.Host("{subdomain:[a-z]+}.domain.com")
+r.Host("{subdomain:[a-z]+}.example.com")
 ```
 
 There are several other matchers that can be added. To match path prefixes:
@@ -122,7 +127,7 @@ r.Queries("key", "value")
 
 ```go
 r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool {
-	return r.ProtoMajor == 0
+    return r.ProtoMajor == 0
 })
 ```
 
@@ -135,6 +140,14 @@ r.HandleFunc("/products", ProductsHandler).
   Schemes("http")
 ```
 
+Routes are tested in the order they were added to the router. If two routes match, the first one wins:
+
+```go
+r := mux.NewRouter()
+r.HandleFunc("/specific", specificHandler)
+r.PathPrefix("/").Handler(catchAllHandler)
+```
+
 Setting the same matching conditions again and again can be boring, so we have a way to group several routes that share the same requirements. We call it "subrouting".
 
 For example, let's say we have several URLs that should only match when the host is `www.example.com`. Create a route for that host and get a "subrouter" from it:
@@ -168,73 +181,108 @@ s.HandleFunc("/{key}/", ProductHandler)
 // "/products/{key}/details"
 s.HandleFunc("/{key}/details", ProductDetailsHandler)
 ```
-### Listing Routes
 
-Routes on a mux can be listed using the Router.Walk method—useful for generating documentation:
+
+### Static Files
+
+Note that the path provided to `PathPrefix()` represents a "wildcard": calling
+`PathPrefix("/static/").Handler(...)` means that the handler will be passed any
+request that matches "/static/\*". This makes it easy to serve static files with mux:
+
+```go
+func main() {
+    var dir string
+
+    flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
+    flag.Parse()
+    r := mux.NewRouter()
+
+    // This will serve files under http://localhost:8000/static/<filename>
+    r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
+
+    srv := &http.Server{
+        Handler:      r,
+        Addr:         "127.0.0.1:8000",
+        // Good practice: enforce timeouts for servers you create!
+        WriteTimeout: 15 * time.Second,
+        ReadTimeout:  15 * time.Second,
+    }
+
+    log.Fatal(srv.ListenAndServe())
+}
+```
+
+### Serving Single Page Applications
+
+Most of the time it makes sense to serve your SPA on a separate web server from your API,
+but sometimes it's desirable to serve them both from one place. It's possible to write a simple
+handler for serving your SPA (for use with React Router's [BrowserRouter](https://reacttraining.com/react-router/web/api/BrowserRouter) for example), and leverage
+mux's powerful routing for your API endpoints.
 
 ```go
 package main
 
 import (
-    "fmt"
-    "net/http"
-    "strings"
+	"encoding/json"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"time"
 
-    "github.com/gorilla/mux"
+	"github.com/gorilla/mux"
 )
 
-func handler(w http.ResponseWriter, r *http.Request) {
-    return
+// spaHandler implements the http.Handler interface, so we can use it
+// to respond to HTTP requests. The path to the static directory and
+// path to the index file within that static directory are used to
+// serve the SPA in the given static directory.
+type spaHandler struct {
+	staticPath string
+	indexPath  string
 }
 
-func main() {
-    r := mux.NewRouter()
-    r.HandleFunc("/", handler)
-    r.HandleFunc("/products", handler).Methods("POST")
-    r.HandleFunc("/articles", handler).Methods("GET")
-    r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
-    r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
-        t, err := route.GetPathTemplate()
-        if err != nil {
-            return err
-        }
-        // p will contain regular expression is compatible with regular expression in Perl, Python, and other languages.
-        // for instance the regular expression for path '/articles/{id}' will be '^/articles/(?P<v0>[^/]+)$'
-        p, err := route.GetPathRegexp()
-        if err != nil {
-            return err
-        }
-        m, err := route.GetMethods()
-        if err != nil {
-            return err
-        }
-        fmt.Println(strings.Join(m, ","), t, p)
-        return nil
-    })
-    http.Handle("/", r)
-}
-```
+// ServeHTTP inspects the URL path to locate a file within the static dir
+// on the SPA handler. If a file is found, it will be served. If not, the
+// file located at the index path on the SPA handler will be served. This
+// is suitable behavior for serving an SPA (single page application).
+func (h spaHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	// Join internally call path.Clean to prevent directory traversal
+	path := filepath.Join(h.staticPath, r.URL.Path)
+
+	// check whether a file exists or is a directory at the given path
+	fi, err := os.Stat(path)
+	if os.IsNotExist(err) || fi.IsDir() {
+		// file does not exist or path is a directory, serve index.html
+		http.ServeFile(w, r, filepath.Join(h.staticPath, h.indexPath))
+		return
+	}
 
-### Static Files
+	if err != nil {
+		// if we got an error (that wasn't that the file doesn't exist) stating the
+		// file, return a 500 internal server error and stop
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+        return
+	}
 
-Note that the path provided to `PathPrefix()` represents a "wildcard": calling
-`PathPrefix("/static/").Handler(...)` means that the handler will be passed any
-request that matches "/static/*". This makes it easy to serve static files with mux:
+	// otherwise, use http.FileServer to serve the static file
+	http.FileServer(http.Dir(h.staticPath)).ServeHTTP(w, r)
+}
 
-```go
 func main() {
-	var dir string
+	router := mux.NewRouter()
 
-	flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
-	flag.Parse()
-	r := mux.NewRouter()
+	router.HandleFunc("/api/health", func(w http.ResponseWriter, r *http.Request) {
+		// an example API handler
+		json.NewEncoder(w).Encode(map[string]bool{"ok": true})
+	})
 
-	// This will serve files under http://localhost:8000/static/<filename>
-	r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
+	spa := spaHandler{staticPath: "build", indexPath: "index.html"}
+	router.PathPrefix("/").Handler(spa)
 
 	srv := &http.Server{
-		Handler:      r,
-		Addr:         "127.0.0.1:8000",
+		Handler: router,
+		Addr:    "127.0.0.1:8000",
 		// Good practice: enforce timeouts for servers you create!
 		WriteTimeout: 15 * time.Second,
 		ReadTimeout:  15 * time.Second,
@@ -272,13 +320,13 @@ This also works for host and query value variables:
 
 ```go
 r := mux.NewRouter()
-r.Host("{subdomain}.domain.com").
+r.Host("{subdomain}.example.com").
   Path("/articles/{category}/{id:[0-9]+}").
   Queries("filter", "{filter}").
   HandlerFunc(ArticleHandler).
   Name("article")
 
-// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
+// url.String() will be "http://news.example.com/articles/technology/42?filter=gorilla"
 url, err := r.Get("article").URL("subdomain", "news",
                                  "category", "technology",
                                  "id", "42",
@@ -298,7 +346,7 @@ r.HeadersRegexp("Content-Type", "application/(text|json)")
 There's also a way to build only the URL host or path for a route: use the methods `URLHost()` or `URLPath()` instead. For the previous route, we would do:
 
 ```go
-// "http://news.domain.com/"
+// "http://news.example.com/"
 host, err := r.Get("article").URLHost("subdomain", "news")
 
 // "/articles/technology/42"
@@ -309,46 +357,427 @@ And if you use subrouters, host and path defined separately can be built as well
 
 ```go
 r := mux.NewRouter()
-s := r.Host("{subdomain}.domain.com").Subrouter()
+s := r.Host("{subdomain}.example.com").Subrouter()
 s.Path("/articles/{category}/{id:[0-9]+}").
   HandlerFunc(ArticleHandler).
   Name("article")
 
-// "http://news.domain.com/articles/technology/42"
+// "http://news.example.com/articles/technology/42"
 url, err := r.Get("article").URL("subdomain", "news",
                                  "category", "technology",
                                  "id", "42")
 ```
 
+To find all the required variables for a given route when calling `URL()`, the method `GetVarNames()` is available:
+```go
+r := mux.NewRouter()
+r.Host("{domain}").
+    Path("/{group}/{item_id}").
+    Queries("some_data1", "{some_data1}").
+    Queries("some_data2", "{some_data2}").
+    Name("article")
+
+// Will print [domain group item_id some_data1 some_data2] <nil>
+fmt.Println(r.Get("article").GetVarNames())
+
+```
 ### Walking Routes
 
 The `Walk` function on `mux.Router` can be used to visit all of the routes that are registered on a router. For example,
 the following prints all of the registered routes:
 
+```go
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/gorilla/mux"
+)
+
+func handler(w http.ResponseWriter, r *http.Request) {
+	return
+}
+
+func main() {
+	r := mux.NewRouter()
+	r.HandleFunc("/", handler)
+	r.HandleFunc("/products", handler).Methods("POST")
+	r.HandleFunc("/articles", handler).Methods("GET")
+	r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
+	r.HandleFunc("/authors", handler).Queries("surname", "{surname}")
+	err := r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
+		pathTemplate, err := route.GetPathTemplate()
+		if err == nil {
+			fmt.Println("ROUTE:", pathTemplate)
+		}
+		pathRegexp, err := route.GetPathRegexp()
+		if err == nil {
+			fmt.Println("Path regexp:", pathRegexp)
+		}
+		queriesTemplates, err := route.GetQueriesTemplates()
+		if err == nil {
+			fmt.Println("Queries templates:", strings.Join(queriesTemplates, ","))
+		}
+		queriesRegexps, err := route.GetQueriesRegexp()
+		if err == nil {
+			fmt.Println("Queries regexps:", strings.Join(queriesRegexps, ","))
+		}
+		methods, err := route.GetMethods()
+		if err == nil {
+			fmt.Println("Methods:", strings.Join(methods, ","))
+		}
+		fmt.Println()
+		return nil
+	})
+
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	http.Handle("/", r)
+}
+```
+
+### Graceful Shutdown
+
+Go 1.8 introduced the ability to [gracefully shutdown](https://golang.org/doc/go1.8#http_shutdown) a `*http.Server`. Here's how to do that alongside `mux`:
+
+```go
+package main
+
+import (
+    "context"
+    "flag"
+    "log"
+    "net/http"
+    "os"
+    "os/signal"
+    "time"
+
+    "github.com/gorilla/mux"
+)
+
+func main() {
+    var wait time.Duration
+    flag.DurationVar(&wait, "graceful-timeout", time.Second * 15, "the duration for which the server gracefully wait for existing connections to finish - e.g. 15s or 1m")
+    flag.Parse()
+
+    r := mux.NewRouter()
+    // Add your routes as needed
+
+    srv := &http.Server{
+        Addr:         "0.0.0.0:8080",
+        // Good practice to set timeouts to avoid Slowloris attacks.
+        WriteTimeout: time.Second * 15,
+        ReadTimeout:  time.Second * 15,
+        IdleTimeout:  time.Second * 60,
+        Handler: r, // Pass our instance of gorilla/mux in.
+    }
+
+    // Run our server in a goroutine so that it doesn't block.
+    go func() {
+        if err := srv.ListenAndServe(); err != nil {
+            log.Println(err)
+        }
+    }()
+
+    c := make(chan os.Signal, 1)
+    // We'll accept graceful shutdowns when quit via SIGINT (Ctrl+C)
+    // SIGKILL, SIGQUIT or SIGTERM (Ctrl+/) will not be caught.
+    signal.Notify(c, os.Interrupt)
+
+    // Block until we receive our signal.
+    <-c
+
+    // Create a deadline to wait for.
+    ctx, cancel := context.WithTimeout(context.Background(), wait)
+    defer cancel()
+    // Doesn't block if no connections, but will otherwise wait
+    // until the timeout deadline.
+    srv.Shutdown(ctx)
+    // Optionally, you could run srv.Shutdown in a goroutine and block on
+    // <-ctx.Done() if your application should wait for other services
+    // to finalize based on context cancellation.
+    log.Println("shutting down")
+    os.Exit(0)
+}
+```
+
+### Middleware
+
+Mux supports the addition of middlewares to a [Router](https://godoc.org/github.com/gorilla/mux#Router), which are executed in the order they are added if a match is found, including its subrouters.
+Middlewares are (typically) small pieces of code which take one request, do something with it, and pass it down to another middleware or the final handler. Some common use cases for middleware are request logging, header manipulation, or `ResponseWriter` hijacking.
+
+Mux middlewares are defined using the de facto standard type:
+
+```go
+type MiddlewareFunc func(http.Handler) http.Handler
+```
+
+Typically, the returned handler is a closure which does something with the http.ResponseWriter and http.Request passed to it, and then calls the handler passed as parameter to the MiddlewareFunc. This takes advantage of closures being able access variables from the context where they are created, while retaining the signature enforced by the receivers.
+
+A very basic middleware which logs the URI of the request being handled could be written as:
+
+```go
+func loggingMiddleware(next http.Handler) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        // Do stuff here
+        log.Println(r.RequestURI)
+        // Call the next handler, which can be another middleware in the chain, or the final handler.
+        next.ServeHTTP(w, r)
+    })
+}
+```
+
+Middlewares can be added to a router using `Router.Use()`:
+
 ```go
 r := mux.NewRouter()
 r.HandleFunc("/", handler)
-r.HandleFunc("/products", handler).Methods("POST")
-r.HandleFunc("/articles", handler).Methods("GET")
-r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
-r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
-    t, err := route.GetPathTemplate()
-    if err != nil {
-        return err
+r.Use(loggingMiddleware)
+```
+
+A more complex authentication middleware, which maps session token to users, could be written as:
+
+```go
+// Define our struct
+type authenticationMiddleware struct {
+	tokenUsers map[string]string
+}
+
+// Initialize it somewhere
+func (amw *authenticationMiddleware) Populate() {
+	amw.tokenUsers["00000000"] = "user0"
+	amw.tokenUsers["aaaaaaaa"] = "userA"
+	amw.tokenUsers["05f717e5"] = "randomUser"
+	amw.tokenUsers["deadbeef"] = "user0"
+}
+
+// Middleware function, which will be called for each request
+func (amw *authenticationMiddleware) Middleware(next http.Handler) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        token := r.Header.Get("X-Session-Token")
+
+        if user, found := amw.tokenUsers[token]; found {
+        	// We found the token in our map
+        	log.Printf("Authenticated user %s\n", user)
+        	// Pass down the request to the next middleware (or final handler)
+        	next.ServeHTTP(w, r)
+        } else {
+        	// Write an error and stop the handler chain
+        	http.Error(w, "Forbidden", http.StatusForbidden)
+        }
+    })
+}
+```
+
+```go
+r := mux.NewRouter()
+r.HandleFunc("/", handler)
+
+amw := authenticationMiddleware{tokenUsers: make(map[string]string)}
+amw.Populate()
+
+r.Use(amw.Middleware)
+```
+
+Note: The handler chain will be stopped if your middleware doesn't call `next.ServeHTTP()` with the corresponding parameters. This can be used to abort a request if the middleware writer wants to. Middlewares _should_ write to `ResponseWriter` if they _are_ going to terminate the request, and they _should not_ write to `ResponseWriter` if they _are not_ going to terminate it.
+
+### Handling CORS Requests
+
+[CORSMethodMiddleware](https://godoc.org/github.com/gorilla/mux#CORSMethodMiddleware) intends to make it easier to strictly set the `Access-Control-Allow-Methods` response header.
+
+* You will still need to use your own CORS handler to set the other CORS headers such as `Access-Control-Allow-Origin`
+* The middleware will set the `Access-Control-Allow-Methods` header to all the method matchers (e.g. `r.Methods(http.MethodGet, http.MethodPut, http.MethodOptions)` -> `Access-Control-Allow-Methods: GET,PUT,OPTIONS`) on a route
+* If you do not specify any methods, then:
+> _Important_: there must be an `OPTIONS` method matcher for the middleware to set the headers.
+
+Here is an example of using `CORSMethodMiddleware` along with a custom `OPTIONS` handler to set all the required CORS headers:
+
+```go
+package main
+
+import (
+	"net/http"
+	"github.com/gorilla/mux"
+)
+
+func main() {
+    r := mux.NewRouter()
+
+    // IMPORTANT: you must specify an OPTIONS method matcher for the middleware to set CORS headers
+    r.HandleFunc("/foo", fooHandler).Methods(http.MethodGet, http.MethodPut, http.MethodPatch, http.MethodOptions)
+    r.Use(mux.CORSMethodMiddleware(r))
+    
+    http.ListenAndServe(":8080", r)
+}
+
+func fooHandler(w http.ResponseWriter, r *http.Request) {
+    w.Header().Set("Access-Control-Allow-Origin", "*")
+    if r.Method == http.MethodOptions {
+        return
     }
-    // p will contain a regular expression that is compatible with regular expressions in Perl, Python, and other languages.
-    // For example, the regular expression for path '/articles/{id}' will be '^/articles/(?P<v0>[^/]+)$'.
-    p, err := route.GetPathRegexp()
+
+    w.Write([]byte("foo"))
+}
+```
+
+And an request to `/foo` using something like:
+
+```bash
+curl localhost:8080/foo -v
+```
+
+Would look like:
+
+```bash
+*   Trying ::1...
+* TCP_NODELAY set
+* Connected to localhost (::1) port 8080 (#0)
+> GET /foo HTTP/1.1
+> Host: localhost:8080
+> User-Agent: curl/7.59.0
+> Accept: */*
+> 
+< HTTP/1.1 200 OK
+< Access-Control-Allow-Methods: GET,PUT,PATCH,OPTIONS
+< Access-Control-Allow-Origin: *
+< Date: Fri, 28 Jun 2019 20:13:30 GMT
+< Content-Length: 3
+< Content-Type: text/plain; charset=utf-8
+< 
+* Connection #0 to host localhost left intact
+foo
+```
+
+### Testing Handlers
+
+Testing handlers in a Go web application is straightforward, and _mux_ doesn't complicate this any further. Given two files: `endpoints.go` and `endpoints_test.go`, here's how we'd test an application using _mux_.
+
+First, our simple HTTP handler:
+
+```go
+// endpoints.go
+package main
+
+func HealthCheckHandler(w http.ResponseWriter, r *http.Request) {
+    // A very simple health check.
+    w.Header().Set("Content-Type", "application/json")
+    w.WriteHeader(http.StatusOK)
+
+    // In the future we could report back on the status of our DB, or our cache
+    // (e.g. Redis) by performing a simple PING, and include them in the response.
+    io.WriteString(w, `{"alive": true}`)
+}
+
+func main() {
+    r := mux.NewRouter()
+    r.HandleFunc("/health", HealthCheckHandler)
+
+    log.Fatal(http.ListenAndServe("localhost:8080", r))
+}
+```
+
+Our test code:
+
+```go
+// endpoints_test.go
+package main
+
+import (
+    "net/http"
+    "net/http/httptest"
+    "testing"
+)
+
+func TestHealthCheckHandler(t *testing.T) {
+    // Create a request to pass to our handler. We don't have any query parameters for now, so we'll
+    // pass 'nil' as the third parameter.
+    req, err := http.NewRequest("GET", "/health", nil)
     if err != nil {
-        return err
+        t.Fatal(err)
     }
-    m, err := route.GetMethods()
-    if err != nil {
-        return err
+
+    // We create a ResponseRecorder (which satisfies http.ResponseWriter) to record the response.
+    rr := httptest.NewRecorder()
+    handler := http.HandlerFunc(HealthCheckHandler)
+
+    // Our handlers satisfy http.Handler, so we can call their ServeHTTP method
+    // directly and pass in our Request and ResponseRecorder.
+    handler.ServeHTTP(rr, req)
+
+    // Check the status code is what we expect.
+    if status := rr.Code; status != http.StatusOK {
+        t.Errorf("handler returned wrong status code: got %v want %v",
+            status, http.StatusOK)
     }
-    fmt.Println(strings.Join(m, ","), t, p)
-    return nil
-})
+
+    // Check the response body is what we expect.
+    expected := `{"alive": true}`
+    if rr.Body.String() != expected {
+        t.Errorf("handler returned unexpected body: got %v want %v",
+            rr.Body.String(), expected)
+    }
+}
+```
+
+In the case that our routes have [variables](#examples), we can pass those in the request. We could write
+[table-driven tests](https://dave.cheney.net/2013/06/09/writing-table-driven-tests-in-go) to test multiple
+possible route variables as needed.
+
+```go
+// endpoints.go
+func main() {
+    r := mux.NewRouter()
+    // A route with a route variable:
+    r.HandleFunc("/metrics/{type}", MetricsHandler)
+
+    log.Fatal(http.ListenAndServe("localhost:8080", r))
+}
+```
+
+Our test file, with a table-driven test of `routeVariables`:
+
+```go
+// endpoints_test.go
+func TestMetricsHandler(t *testing.T) {
+    tt := []struct{
+        routeVariable string
+        shouldPass bool
+    }{
+        {"goroutines", true},
+        {"heap", true},
+        {"counters", true},
+        {"queries", true},
+        {"adhadaeqm3k", false},
+    }
+
+    for _, tc := range tt {
+        path := fmt.Sprintf("/metrics/%s", tc.routeVariable)
+        req, err := http.NewRequest("GET", path, nil)
+        if err != nil {
+            t.Fatal(err)
+        }
+
+        rr := httptest.NewRecorder()
+	
+	// To add the vars to the context, 
+	// we need to create a router through which we can pass the request.
+	router := mux.NewRouter()
+        router.HandleFunc("/metrics/{type}", MetricsHandler)
+        router.ServeHTTP(rr, req)
+
+        // In this case, our MetricsHandler returns a non-200 response
+        // for a route variable it doesn't know about.
+        if rr.Code == http.StatusOK && !tc.shouldPass {
+            t.Errorf("handler should have failed on routeVariable %s: got %v want %v",
+                tc.routeVariable, rr.Code, http.StatusOK)
+        }
+    }
+}
 ```
 
 ## Full Example
@@ -359,22 +788,22 @@ Here's a complete, runnable example of a small `mux` based server:
 package main
 
 import (
-	"net/http"
-	"log"
-	"github.com/gorilla/mux"
+    "net/http"
+    "log"
+    "github.com/gorilla/mux"
 )
 
 func YourHandler(w http.ResponseWriter, r *http.Request) {
-	w.Write([]byte("Gorilla!\n"))
+    w.Write([]byte("Gorilla!\n"))
 }
 
 func main() {
-	r := mux.NewRouter()
-	// Routes consist of a path and a handler function.
-	r.HandleFunc("/", YourHandler)
+    r := mux.NewRouter()
+    // Routes consist of a path and a handler function.
+    r.HandleFunc("/", YourHandler)
 
-	// Bind to a port and pass our router in
-	log.Fatal(http.ListenAndServe(":8000", r))
+    // Bind to a port and pass our router in
+    log.Fatal(http.ListenAndServe(":8000", r))
 }
 ```
 
diff --git a/vendor/github.com/gorilla/mux/context_gorilla.go b/vendor/github.com/gorilla/mux/context_gorilla.go
deleted file mode 100644
index d7adaa8f..00000000
--- a/vendor/github.com/gorilla/mux/context_gorilla.go
+++ /dev/null
@@ -1,26 +0,0 @@
-// +build !go1.7
-
-package mux
-
-import (
-	"net/http"
-
-	"github.com/gorilla/context"
-)
-
-func contextGet(r *http.Request, key interface{}) interface{} {
-	return context.Get(r, key)
-}
-
-func contextSet(r *http.Request, key, val interface{}) *http.Request {
-	if val == nil {
-		return r
-	}
-
-	context.Set(r, key, val)
-	return r
-}
-
-func contextClear(r *http.Request) {
-	context.Clear(r)
-}
diff --git a/vendor/github.com/gorilla/mux/context_native.go b/vendor/github.com/gorilla/mux/context_native.go
deleted file mode 100644
index 209cbea7..00000000
--- a/vendor/github.com/gorilla/mux/context_native.go
+++ /dev/null
@@ -1,24 +0,0 @@
-// +build go1.7
-
-package mux
-
-import (
-	"context"
-	"net/http"
-)
-
-func contextGet(r *http.Request, key interface{}) interface{} {
-	return r.Context().Value(key)
-}
-
-func contextSet(r *http.Request, key, val interface{}) *http.Request {
-	if val == nil {
-		return r
-	}
-
-	return r.WithContext(context.WithValue(r.Context(), key, val))
-}
-
-func contextClear(r *http.Request) {
-	return
-}
diff --git a/vendor/github.com/gorilla/mux/doc.go b/vendor/github.com/gorilla/mux/doc.go
index cce30b2f..80601351 100644
--- a/vendor/github.com/gorilla/mux/doc.go
+++ b/vendor/github.com/gorilla/mux/doc.go
@@ -10,18 +10,18 @@ http.ServeMux, mux.Router matches incoming requests against a list of
 registered routes and calls a handler for the route that matches the URL
 or other conditions. The main features are:
 
-	* Requests can be matched based on URL host, path, path prefix, schemes,
-	  header and query values, HTTP methods or using custom matchers.
-	* URL hosts, paths and query values can have variables with an optional
-	  regular expression.
-	* Registered URLs can be built, or "reversed", which helps maintaining
-	  references to resources.
-	* Routes can be used as subrouters: nested routes are only tested if the
-	  parent route matches. This is useful to define groups of routes that
-	  share common conditions like a host, a path prefix or other repeated
-	  attributes. As a bonus, this optimizes request matching.
-	* It implements the http.Handler interface so it is compatible with the
-	  standard http.ServeMux.
+  - Requests can be matched based on URL host, path, path prefix, schemes,
+    header and query values, HTTP methods or using custom matchers.
+  - URL hosts, paths and query values can have variables with an optional
+    regular expression.
+  - Registered URLs can be built, or "reversed", which helps maintaining
+    references to resources.
+  - Routes can be used as subrouters: nested routes are only tested if the
+    parent route matches. This is useful to define groups of routes that
+    share common conditions like a host, a path prefix or other repeated
+    attributes. As a bonus, this optimizes request matching.
+  - It implements the http.Handler interface so it is compatible with the
+    standard http.ServeMux.
 
 Let's start registering a couple of URL paths and handlers:
 
@@ -238,5 +238,68 @@ as well:
 	url, err := r.Get("article").URL("subdomain", "news",
 	                                 "category", "technology",
 	                                 "id", "42")
+
+Mux supports the addition of middlewares to a Router, which are executed in the order they are added if a match is found, including its subrouters. Middlewares are (typically) small pieces of code which take one request, do something with it, and pass it down to another middleware or the final handler. Some common use cases for middleware are request logging, header manipulation, or ResponseWriter hijacking.
+
+	type MiddlewareFunc func(http.Handler) http.Handler
+
+Typically, the returned handler is a closure which does something with the http.ResponseWriter and http.Request passed to it, and then calls the handler passed as parameter to the MiddlewareFunc (closures can access variables from the context where they are created).
+
+A very basic middleware which logs the URI of the request being handled could be written as:
+
+	func simpleMw(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			// Do stuff here
+			log.Println(r.RequestURI)
+			// Call the next handler, which can be another middleware in the chain, or the final handler.
+			next.ServeHTTP(w, r)
+		})
+	}
+
+Middlewares can be added to a router using `Router.Use()`:
+
+	r := mux.NewRouter()
+	r.HandleFunc("/", handler)
+	r.Use(simpleMw)
+
+A more complex authentication middleware, which maps session token to users, could be written as:
+
+	// Define our struct
+	type authenticationMiddleware struct {
+		tokenUsers map[string]string
+	}
+
+	// Initialize it somewhere
+	func (amw *authenticationMiddleware) Populate() {
+		amw.tokenUsers["00000000"] = "user0"
+		amw.tokenUsers["aaaaaaaa"] = "userA"
+		amw.tokenUsers["05f717e5"] = "randomUser"
+		amw.tokenUsers["deadbeef"] = "user0"
+	}
+
+	// Middleware function, which will be called for each request
+	func (amw *authenticationMiddleware) Middleware(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			token := r.Header.Get("X-Session-Token")
+
+			if user, found := amw.tokenUsers[token]; found {
+				// We found the token in our map
+				log.Printf("Authenticated user %s\n", user)
+				next.ServeHTTP(w, r)
+			} else {
+				http.Error(w, "Forbidden", http.StatusForbidden)
+			}
+		})
+	}
+
+	r := mux.NewRouter()
+	r.HandleFunc("/", handler)
+
+	amw := authenticationMiddleware{tokenUsers: make(map[string]string)}
+	amw.Populate()
+
+	r.Use(amw.Middleware)
+
+Note: The handler chain will be stopped if your middleware doesn't call `next.ServeHTTP()` with the corresponding parameters. This can be used to abort a request if the middleware writer wants to.
 */
 package mux
diff --git a/vendor/github.com/gorilla/mux/mux.go b/vendor/github.com/gorilla/mux/mux.go
index fb69196d..1e089906 100644
--- a/vendor/github.com/gorilla/mux/mux.go
+++ b/vendor/github.com/gorilla/mux/mux.go
@@ -5,21 +5,25 @@
 package mux
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"net/http"
 	"path"
 	"regexp"
-	"strings"
 )
 
 var (
+	// ErrMethodMismatch is returned when the method in the request does not match
+	// the method defined against the route.
 	ErrMethodMismatch = errors.New("method is not allowed")
+	// ErrNotFound is returned when no route match is found.
+	ErrNotFound = errors.New("no matching route was found")
 )
 
 // NewRouter returns a new router instance.
 func NewRouter() *Router {
-	return &Router{namedRoutes: make(map[string]*Route), KeepContext: false}
+	return &Router{namedRoutes: make(map[string]*Route)}
 }
 
 // Router registers routes to be matched and dispatches a handler.
@@ -27,62 +31,140 @@ func NewRouter() *Router {
 // It implements the http.Handler interface, so it can be registered to serve
 // requests:
 //
-//     var router = mux.NewRouter()
+//	var router = mux.NewRouter()
 //
-//     func main() {
-//         http.Handle("/", router)
-//     }
+//	func main() {
+//	    http.Handle("/", router)
+//	}
 //
 // Or, for Google App Engine, register it in a init() function:
 //
-//     func init() {
-//         http.Handle("/", router)
-//     }
+//	func init() {
+//	    http.Handle("/", router)
+//	}
 //
 // This will send all incoming requests to the router.
 type Router struct {
 	// Configurable Handler to be used when no route matches.
+	// This can be used to render your own 404 Not Found errors.
 	NotFoundHandler http.Handler
 
 	// Configurable Handler to be used when the request method does not match the route.
+	// This can be used to render your own 405 Method Not Allowed errors.
 	MethodNotAllowedHandler http.Handler
 
-	// Parent route, if this is a subrouter.
-	parent parentRoute
 	// Routes to be matched, in order.
 	routes []*Route
+
 	// Routes by name for URL building.
 	namedRoutes map[string]*Route
-	// See Router.StrictSlash(). This defines the flag for new routes.
-	strictSlash bool
-	// See Router.SkipClean(). This defines the flag for new routes.
-	skipClean bool
+
 	// If true, do not clear the request context after handling the request.
-	// This has no effect when go1.7+ is used, since the context is stored
-	// on the request itself.
+	//
+	// Deprecated: No effect, since the context is stored on the request itself.
 	KeepContext bool
-	// see Router.UseEncodedPath(). This defines a flag for all routes.
+
+	// Slice of middlewares to be called after a match is found
+	middlewares []middleware
+
+	// configuration shared with `Route`
+	routeConf
+}
+
+// common route configuration shared between `Router` and `Route`
+type routeConf struct {
+	// If true, "/path/foo%2Fbar/to" will match the path "/path/{var}/to"
 	useEncodedPath bool
+
+	// If true, when the path pattern is "/path/", accessing "/path" will
+	// redirect to the former and vice versa.
+	strictSlash bool
+
+	// If true, when the path pattern is "/path//to", accessing "/path//to"
+	// will not redirect
+	skipClean bool
+
+	// Manager for the variables from host and path.
+	regexp routeRegexpGroup
+
+	// List of matchers.
+	matchers []matcher
+
+	// The scheme used when building URLs.
+	buildScheme string
+
+	buildVarsFunc BuildVarsFunc
 }
 
-// Match matches registered routes against the request.
+// returns an effective deep copy of `routeConf`
+func copyRouteConf(r routeConf) routeConf {
+	c := r
+
+	if r.regexp.path != nil {
+		c.regexp.path = copyRouteRegexp(r.regexp.path)
+	}
+
+	if r.regexp.host != nil {
+		c.regexp.host = copyRouteRegexp(r.regexp.host)
+	}
+
+	c.regexp.queries = make([]*routeRegexp, 0, len(r.regexp.queries))
+	for _, q := range r.regexp.queries {
+		c.regexp.queries = append(c.regexp.queries, copyRouteRegexp(q))
+	}
+
+	c.matchers = make([]matcher, len(r.matchers))
+	copy(c.matchers, r.matchers)
+
+	return c
+}
+
+func copyRouteRegexp(r *routeRegexp) *routeRegexp {
+	c := *r
+	return &c
+}
+
+// Match attempts to match the given request against the router's registered routes.
+//
+// If the request matches a route of this router or one of its subrouters the Route,
+// Handler, and Vars fields of the the match argument are filled and this function
+// returns true.
+//
+// If the request does not match any of this router's or its subrouters' routes
+// then this function returns false. If available, a reason for the match failure
+// will be filled in the match argument's MatchErr field. If the match failure type
+// (eg: not found) has a registered handler, the handler is assigned to the Handler
+// field of the match argument.
 func (r *Router) Match(req *http.Request, match *RouteMatch) bool {
 	for _, route := range r.routes {
 		if route.Match(req, match) {
+			// Build middleware chain if no error was found
+			if match.MatchErr == nil {
+				for i := len(r.middlewares) - 1; i >= 0; i-- {
+					match.Handler = r.middlewares[i].Middleware(match.Handler)
+				}
+			}
 			return true
 		}
 	}
 
-	if match.MatchErr == ErrMethodMismatch && r.MethodNotAllowedHandler != nil {
-		match.Handler = r.MethodNotAllowedHandler
-		return true
+	if match.MatchErr == ErrMethodMismatch {
+		if r.MethodNotAllowedHandler != nil {
+			match.Handler = r.MethodNotAllowedHandler
+			return true
+		}
+
+		return false
 	}
 
 	// Closest match for a router (includes sub-routers)
 	if r.NotFoundHandler != nil {
 		match.Handler = r.NotFoundHandler
+		match.MatchErr = ErrNotFound
 		return true
 	}
+
+	match.MatchErr = ErrNotFound
 	return false
 }
 
@@ -94,7 +176,7 @@ func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	if !r.skipClean {
 		path := req.URL.Path
 		if r.useEncodedPath {
-			path = getPath(req)
+			path = req.URL.EscapedPath()
 		}
 		// Clean path to canonical form and redirect.
 		if p := cleanPath(path); p != path {
@@ -115,8 +197,8 @@ func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	var handler http.Handler
 	if r.Match(req, &match) {
 		handler = match.Handler
-		req = setVars(req, match.Vars)
-		req = setCurrentRoute(req, match.Route)
+		req = requestWithVars(req, match.Vars)
+		req = requestWithRoute(req, match.Route)
 	}
 
 	if handler == nil && match.MatchErr == ErrMethodMismatch {
@@ -127,33 +209,35 @@ func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 		handler = http.NotFoundHandler()
 	}
 
-	if !r.KeepContext {
-		defer contextClear(req)
-	}
 	handler.ServeHTTP(w, req)
 }
 
 // Get returns a route registered with the given name.
 func (r *Router) Get(name string) *Route {
-	return r.getNamedRoutes()[name]
+	return r.namedRoutes[name]
 }
 
 // GetRoute returns a route registered with the given name. This method
 // was renamed to Get() and remains here for backwards compatibility.
 func (r *Router) GetRoute(name string) *Route {
-	return r.getNamedRoutes()[name]
+	return r.namedRoutes[name]
 }
 
 // StrictSlash defines the trailing slash behavior for new routes. The initial
 // value is false.
 //
-// When true, if the route path is "/path/", accessing "/path" will redirect
+// When true, if the route path is "/path/", accessing "/path" will perform a redirect
 // to the former and vice versa. In other words, your application will always
 // see the path as specified in the route.
 //
 // When false, if the route path is "/path", accessing "/path/" will not match
 // this route and vice versa.
 //
+// The re-direct is a HTTP 301 (Moved Permanently). Note that when this is set for
+// routes with a non-idempotent method (e.g. POST, PUT), the subsequent re-directed
+// request will be made as a GET by most clients. Use middleware or client settings
+// to modify this behaviour as needed.
+//
 // Special case: when a route sets a path prefix using the PathPrefix() method,
 // strict slash is ignored for that route because the redirect behavior can't
 // be determined from a prefix alone. However, any subrouters created from that
@@ -179,10 +263,6 @@ func (r *Router) SkipClean(value bool) *Router {
 // UseEncodedPath tells the router to match the encoded original path
 // to the routes.
 // For eg. "/path/foo%2Fbar/to" will match the path "/path/{var}/to".
-// This behavior has the drawback of needing to match routes against
-// r.RequestURI instead of r.URL.Path. Any modifications (such as http.StripPrefix)
-// to r.URL.Path will not affect routing when this flag is on and thus may
-// induce unintended behavior.
 //
 // If not called, the router will match the unencoded path to the routes.
 // For eg. "/path/foo%2Fbar/to" will match the path "/path/foo/bar/to"
@@ -191,55 +271,24 @@ func (r *Router) UseEncodedPath() *Router {
 	return r
 }
 
-// ----------------------------------------------------------------------------
-// parentRoute
-// ----------------------------------------------------------------------------
-
-func (r *Router) getBuildScheme() string {
-	if r.parent != nil {
-		return r.parent.getBuildScheme()
-	}
-	return ""
-}
-
-// getNamedRoutes returns the map where named routes are registered.
-func (r *Router) getNamedRoutes() map[string]*Route {
-	if r.namedRoutes == nil {
-		if r.parent != nil {
-			r.namedRoutes = r.parent.getNamedRoutes()
-		} else {
-			r.namedRoutes = make(map[string]*Route)
-		}
-	}
-	return r.namedRoutes
-}
-
-// getRegexpGroup returns regexp definitions from the parent route, if any.
-func (r *Router) getRegexpGroup() *routeRegexpGroup {
-	if r.parent != nil {
-		return r.parent.getRegexpGroup()
-	}
-	return nil
-}
-
-func (r *Router) buildVars(m map[string]string) map[string]string {
-	if r.parent != nil {
-		m = r.parent.buildVars(m)
-	}
-	return m
-}
-
 // ----------------------------------------------------------------------------
 // Route factories
 // ----------------------------------------------------------------------------
 
 // NewRoute registers an empty route.
 func (r *Router) NewRoute() *Route {
-	route := &Route{parent: r, strictSlash: r.strictSlash, skipClean: r.skipClean, useEncodedPath: r.useEncodedPath}
+	// initialize a route with a copy of the parent router's configuration
+	route := &Route{routeConf: copyRouteConf(r.routeConf), namedRoutes: r.namedRoutes}
 	r.routes = append(r.routes, route)
 	return route
 }
 
+// Name registers a new route with a name.
+// See Route.Name().
+func (r *Router) Name(name string) *Route {
+	return r.NewRoute().Name(name)
+}
+
 // Handle registers a new route with a matcher for the URL path.
 // See Route.Path() and Route.Handler().
 func (r *Router) Handle(path string, handler http.Handler) *Route {
@@ -379,7 +428,7 @@ const (
 
 // Vars returns the route variables for the current request, if any.
 func Vars(r *http.Request) map[string]string {
-	if rv := contextGet(r, varsKey); rv != nil {
+	if rv := r.Context().Value(varsKey); rv != nil {
 		return rv.(map[string]string)
 	}
 	return nil
@@ -388,49 +437,28 @@ func Vars(r *http.Request) map[string]string {
 // CurrentRoute returns the matched route for the current request, if any.
 // This only works when called inside the handler of the matched route
 // because the matched route is stored in the request context which is cleared
-// after the handler returns, unless the KeepContext option is set on the
-// Router.
+// after the handler returns.
 func CurrentRoute(r *http.Request) *Route {
-	if rv := contextGet(r, routeKey); rv != nil {
+	if rv := r.Context().Value(routeKey); rv != nil {
 		return rv.(*Route)
 	}
 	return nil
 }
 
-func setVars(r *http.Request, val interface{}) *http.Request {
-	return contextSet(r, varsKey, val)
+func requestWithVars(r *http.Request, vars map[string]string) *http.Request {
+	ctx := context.WithValue(r.Context(), varsKey, vars)
+	return r.WithContext(ctx)
 }
 
-func setCurrentRoute(r *http.Request, val interface{}) *http.Request {
-	return contextSet(r, routeKey, val)
+func requestWithRoute(r *http.Request, route *Route) *http.Request {
+	ctx := context.WithValue(r.Context(), routeKey, route)
+	return r.WithContext(ctx)
 }
 
 // ----------------------------------------------------------------------------
 // Helpers
 // ----------------------------------------------------------------------------
 
-// getPath returns the escaped path if possible; doing what URL.EscapedPath()
-// which was added in go1.5 does
-func getPath(req *http.Request) string {
-	if req.RequestURI != "" {
-		// Extract the path from RequestURI (which is escaped unlike URL.Path)
-		// as detailed here as detailed in https://golang.org/pkg/net/url/#URL
-		// for < 1.5 server side workaround
-		// http://localhost/path/here?v=1 -> /path/here
-		path := req.RequestURI
-		path = strings.TrimPrefix(path, req.URL.Scheme+`://`)
-		path = strings.TrimPrefix(path, req.URL.Host)
-		if i := strings.LastIndex(path, "?"); i > -1 {
-			path = path[:i]
-		}
-		if i := strings.LastIndex(path, "#"); i > -1 {
-			path = path[:i]
-		}
-		return path
-	}
-	return req.URL.Path
-}
-
 // cleanPath returns the canonical path for p, eliminating . and .. elements.
 // Borrowed from the net/http package.
 func cleanPath(p string) string {
diff --git a/vendor/github.com/gorilla/mux/regexp.go b/vendor/github.com/gorilla/mux/regexp.go
index 80d1f785..5d05cfa0 100644
--- a/vendor/github.com/gorilla/mux/regexp.go
+++ b/vendor/github.com/gorilla/mux/regexp.go
@@ -14,6 +14,20 @@ import (
 	"strings"
 )
 
+type routeRegexpOptions struct {
+	strictSlash    bool
+	useEncodedPath bool
+}
+
+type regexpType int
+
+const (
+	regexpTypePath regexpType = iota
+	regexpTypeHost
+	regexpTypePrefix
+	regexpTypeQuery
+)
+
 // newRouteRegexp parses a route template and returns a routeRegexp,
 // used to match a host, a path or a query string.
 //
@@ -24,7 +38,7 @@ import (
 // Previously we accepted only Python-like identifiers for variable
 // names ([a-zA-Z_][a-zA-Z0-9_]*), but currently the only restriction is that
 // name and pattern can't be empty, and names can't contain a colon.
-func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash, useEncodedPath bool) (*routeRegexp, error) {
+func newRouteRegexp(tpl string, typ regexpType, options routeRegexpOptions) (*routeRegexp, error) {
 	// Check if it is well-formed.
 	idxs, errBraces := braceIndices(tpl)
 	if errBraces != nil {
@@ -34,19 +48,18 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash,
 	template := tpl
 	// Now let's parse it.
 	defaultPattern := "[^/]+"
-	if matchQuery {
+	if typ == regexpTypeQuery {
 		defaultPattern = ".*"
-	} else if matchHost {
+	} else if typ == regexpTypeHost {
 		defaultPattern = "[^.]+"
-		matchPrefix = false
 	}
 	// Only match strict slash if not matching
-	if matchPrefix || matchHost || matchQuery {
-		strictSlash = false
+	if typ != regexpTypePath {
+		options.strictSlash = false
 	}
 	// Set a flag for strictSlash.
 	endSlash := false
-	if strictSlash && strings.HasSuffix(tpl, "/") {
+	if options.strictSlash && strings.HasSuffix(tpl, "/") {
 		tpl = tpl[:len(tpl)-1]
 		endSlash = true
 	}
@@ -88,18 +101,25 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash,
 	// Add the remaining.
 	raw := tpl[end:]
 	pattern.WriteString(regexp.QuoteMeta(raw))
-	if strictSlash {
+	if options.strictSlash {
 		pattern.WriteString("[/]?")
 	}
-	if matchQuery {
+	if typ == regexpTypeQuery {
 		// Add the default pattern if the query value is empty
 		if queryVal := strings.SplitN(template, "=", 2)[1]; queryVal == "" {
 			pattern.WriteString(defaultPattern)
 		}
 	}
-	if !matchPrefix {
+	if typ != regexpTypePrefix {
 		pattern.WriteByte('$')
 	}
+
+	var wildcardHostPort bool
+	if typ == regexpTypeHost {
+		if !strings.Contains(pattern.String(), ":") {
+			wildcardHostPort = true
+		}
+	}
 	reverse.WriteString(raw)
 	if endSlash {
 		reverse.WriteByte('/')
@@ -118,15 +138,14 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash,
 
 	// Done!
 	return &routeRegexp{
-		template:       template,
-		matchHost:      matchHost,
-		matchQuery:     matchQuery,
-		strictSlash:    strictSlash,
-		useEncodedPath: useEncodedPath,
-		regexp:         reg,
-		reverse:        reverse.String(),
-		varsN:          varsN,
-		varsR:          varsR,
+		template:         template,
+		regexpType:       typ,
+		options:          options,
+		regexp:           reg,
+		reverse:          reverse.String(),
+		varsN:            varsN,
+		varsR:            varsR,
+		wildcardHostPort: wildcardHostPort,
 	}, nil
 }
 
@@ -135,15 +154,10 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash,
 type routeRegexp struct {
 	// The unmodified template.
 	template string
-	// True for host match, false for path or query string match.
-	matchHost bool
-	// True for query string match, false for path and host match.
-	matchQuery bool
-	// The strictSlash value defined on the route, but disabled if PathPrefix was used.
-	strictSlash bool
-	// Determines whether to use encoded path from getPath function or unencoded
-	// req.URL.Path for path matching
-	useEncodedPath bool
+	// The type of match
+	regexpType regexpType
+	// Options for matching
+	options routeRegexpOptions
 	// Expanded regexp.
 	regexp *regexp.Regexp
 	// Reverse template.
@@ -152,22 +166,31 @@ type routeRegexp struct {
 	varsN []string
 	// Variable regexps (validators).
 	varsR []*regexp.Regexp
+	// Wildcard host-port (no strict port match in hostname)
+	wildcardHostPort bool
 }
 
 // Match matches the regexp against the URL host or path.
 func (r *routeRegexp) Match(req *http.Request, match *RouteMatch) bool {
-	if !r.matchHost {
-		if r.matchQuery {
-			return r.matchQueryString(req)
-		}
-		path := req.URL.Path
-		if r.useEncodedPath {
-			path = getPath(req)
+	if r.regexpType == regexpTypeHost {
+		host := getHost(req)
+		if r.wildcardHostPort {
+			// Don't be strict on the port match
+			if i := strings.Index(host, ":"); i != -1 {
+				host = host[:i]
+			}
 		}
-		return r.regexp.MatchString(path)
+		return r.regexp.MatchString(host)
 	}
 
-	return r.regexp.MatchString(getHost(req))
+	if r.regexpType == regexpTypeQuery {
+		return r.matchQueryString(req)
+	}
+	path := req.URL.Path
+	if r.options.useEncodedPath {
+		path = req.URL.EscapedPath()
+	}
+	return r.regexp.MatchString(path)
 }
 
 // url builds a URL part using the given values.
@@ -178,7 +201,7 @@ func (r *routeRegexp) url(values map[string]string) (string, error) {
 		if !ok {
 			return "", fmt.Errorf("mux: missing route variable %q", v)
 		}
-		if r.matchQuery {
+		if r.regexpType == regexpTypeQuery {
 			value = url.QueryEscape(value)
 		}
 		urlValues[k] = value
@@ -203,18 +226,55 @@ func (r *routeRegexp) url(values map[string]string) (string, error) {
 // For a URL with foo=bar&baz=ding, we return only the relevant key
 // value pair for the routeRegexp.
 func (r *routeRegexp) getURLQuery(req *http.Request) string {
-	if !r.matchQuery {
+	if r.regexpType != regexpTypeQuery {
 		return ""
 	}
 	templateKey := strings.SplitN(r.template, "=", 2)[0]
-	for key, vals := range req.URL.Query() {
-		if key == templateKey && len(vals) > 0 {
-			return key + "=" + vals[0]
-		}
+	val, ok := findFirstQueryKey(req.URL.RawQuery, templateKey)
+	if ok {
+		return templateKey + "=" + val
 	}
 	return ""
 }
 
+// findFirstQueryKey returns the same result as (*url.URL).Query()[key][0].
+// If key was not found, empty string and false is returned.
+func findFirstQueryKey(rawQuery, key string) (value string, ok bool) {
+	query := []byte(rawQuery)
+	for len(query) > 0 {
+		foundKey := query
+		if i := bytes.IndexAny(foundKey, "&;"); i >= 0 {
+			foundKey, query = foundKey[:i], foundKey[i+1:]
+		} else {
+			query = query[:0]
+		}
+		if len(foundKey) == 0 {
+			continue
+		}
+		var value []byte
+		if i := bytes.IndexByte(foundKey, '='); i >= 0 {
+			foundKey, value = foundKey[:i], foundKey[i+1:]
+		}
+		if len(foundKey) < len(key) {
+			// Cannot possibly be key.
+			continue
+		}
+		keyString, err := url.QueryUnescape(string(foundKey))
+		if err != nil {
+			continue
+		}
+		if keyString != key {
+			continue
+		}
+		valueString, err := url.QueryUnescape(string(value))
+		if err != nil {
+			continue
+		}
+		return valueString, true
+	}
+	return "", false
+}
+
 func (r *routeRegexp) matchQueryString(req *http.Request) bool {
 	return r.regexp.MatchString(r.getURLQuery(req))
 }
@@ -261,10 +321,16 @@ type routeRegexpGroup struct {
 }
 
 // setMatch extracts the variables from the URL once a route matches.
-func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route) {
+func (v routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route) {
 	// Store host variables.
 	if v.host != nil {
 		host := getHost(req)
+		if v.host.wildcardHostPort {
+			// Don't be strict on the port match
+			if i := strings.Index(host, ":"); i != -1 {
+				host = host[:i]
+			}
+		}
 		matches := v.host.regexp.FindStringSubmatchIndex(host)
 		if len(matches) > 0 {
 			extractVars(host, matches, v.host.varsN, m.Vars)
@@ -272,7 +338,7 @@ func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route)
 	}
 	path := req.URL.Path
 	if r.useEncodedPath {
-		path = getPath(req)
+		path = req.URL.EscapedPath()
 	}
 	// Store path variables.
 	if v.path != nil {
@@ -280,7 +346,7 @@ func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route)
 		if len(matches) > 0 {
 			extractVars(path, matches, v.path.varsN, m.Vars)
 			// Check if we should redirect.
-			if v.path.strictSlash {
+			if v.path.options.strictSlash {
 				p1 := strings.HasSuffix(path, "/")
 				p2 := strings.HasSuffix(v.path.template, "/")
 				if p1 != p2 {
@@ -290,7 +356,7 @@ func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route)
 					} else {
 						u.Path += "/"
 					}
-					m.Handler = http.RedirectHandler(u.String(), 301)
+					m.Handler = http.RedirectHandler(u.String(), http.StatusMovedPermanently)
 				}
 			}
 		}
@@ -306,17 +372,13 @@ func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route)
 }
 
 // getHost tries its best to return the request host.
+// According to section 14.23 of RFC 2616 the Host header
+// can include the port number if the default value of 80 is not used.
 func getHost(r *http.Request) string {
 	if r.URL.IsAbs() {
 		return r.URL.Host
 	}
-	host := r.Host
-	// Slice off any port information.
-	if i := strings.Index(host, ":"); i != -1 {
-		host = host[:i]
-	}
-	return host
-
+	return r.Host
 }
 
 func extractVars(input string, matches []int, names []string, output map[string]string) {
diff --git a/vendor/github.com/gorilla/mux/route.go b/vendor/github.com/gorilla/mux/route.go
index 6863adba..e8f11df2 100644
--- a/vendor/github.com/gorilla/mux/route.go
+++ b/vendor/github.com/gorilla/mux/route.go
@@ -15,24 +15,8 @@ import (
 
 // Route stores information to match a request and build URLs.
 type Route struct {
-	// Parent where the route was registered (a Router).
-	parent parentRoute
 	// Request handler for the route.
 	handler http.Handler
-	// List of matchers.
-	matchers []matcher
-	// Manager for the variables from host and path.
-	regexp *routeRegexpGroup
-	// If true, when the path pattern is "/path/", accessing "/path" will
-	// redirect to the former and vice versa.
-	strictSlash bool
-	// If true, when the path pattern is "/path//to", accessing "/path//to"
-	// will not redirect
-	skipClean bool
-	// If true, "/path/foo%2Fbar/to" will match the path "/path/{var}/to"
-	useEncodedPath bool
-	// The scheme used when building URLs.
-	buildScheme string
 	// If true, this route never matches: it is only used to build URLs.
 	buildOnly bool
 	// The name used to build URLs.
@@ -40,9 +24,15 @@ type Route struct {
 	// Error resulted from building a route.
 	err error
 
-	buildVarsFunc BuildVarsFunc
+	// "global" reference to all named routes
+	namedRoutes map[string]*Route
+
+	// config possibly passed in from `Router`
+	routeConf
 }
 
+// SkipClean reports whether path cleaning is enabled for this route via
+// Router.SkipClean.
 func (r *Route) SkipClean() bool {
 	return r.skipClean
 }
@@ -62,8 +52,30 @@ func (r *Route) Match(req *http.Request, match *RouteMatch) bool {
 				matchErr = ErrMethodMismatch
 				continue
 			}
-			matchErr = nil
+
+			// Ignore ErrNotFound errors. These errors arise from match call
+			// to Subrouters.
+			//
+			// This prevents subsequent matching subrouters from failing to
+			// run middleware. If not ignored, the middleware would see a
+			// non-nil MatchErr and be skipped, even when there was a
+			// matching route.
+			if match.MatchErr == ErrNotFound {
+				match.MatchErr = nil
+			}
+
+			matchErr = nil // nolint:ineffassign
 			return false
+		} else {
+			// Multiple routes may share the same path but use different HTTP methods. For instance:
+			// Route 1: POST "/users/{id}".
+			// Route 2: GET "/users/{id}", parameters: "id": "[0-9]+".
+			//
+			// The router must handle these cases correctly. For a GET request to "/users/abc" with "id" as "-2",
+			// The router should return a "Not Found" error as no route fully matches this request.
+			if match.MatchErr == ErrMethodMismatch {
+				match.MatchErr = nil
+			}
 		}
 	}
 
@@ -72,7 +84,13 @@ func (r *Route) Match(req *http.Request, match *RouteMatch) bool {
 		return false
 	}
 
-	match.MatchErr = nil
+	if match.MatchErr == ErrMethodMismatch && r.handler != nil {
+		// We found a route which matches request method, clear MatchErr
+		match.MatchErr = nil
+		// Then override the mis-matched handler
+		match.Handler = r.handler
+	}
+
 	// Yay, we have a match. Let's collect some info about it.
 	if match.Route == nil {
 		match.Route = r
@@ -85,9 +103,7 @@ func (r *Route) Match(req *http.Request, match *RouteMatch) bool {
 	}
 
 	// Set variables.
-	if r.regexp != nil {
-		r.regexp.setMatch(req, match, r)
-	}
+	r.regexp.setMatch(req, match, r)
 	return true
 }
 
@@ -129,7 +145,7 @@ func (r *Route) GetHandler() http.Handler {
 // Name -----------------------------------------------------------------------
 
 // Name sets the name for the route, used to build URLs.
-// If the name was registered already it will be overwritten.
+// It is an error to call Name more than once on a route.
 func (r *Route) Name(name string) *Route {
 	if r.name != "" {
 		r.err = fmt.Errorf("mux: route already has name %q, can't set %q",
@@ -137,7 +153,7 @@ func (r *Route) Name(name string) *Route {
 	}
 	if r.err == nil {
 		r.name = name
-		r.getNamedRoutes()[name] = r
+		r.namedRoutes[name] = r
 	}
 	return r
 }
@@ -165,12 +181,11 @@ func (r *Route) addMatcher(m matcher) *Route {
 }
 
 // addRegexpMatcher adds a host or path matcher and builder to a route.
-func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery bool) error {
+func (r *Route) addRegexpMatcher(tpl string, typ regexpType) error {
 	if r.err != nil {
 		return r.err
 	}
-	r.regexp = r.getRegexpGroup()
-	if !matchHost && !matchQuery {
+	if typ == regexpTypePath || typ == regexpTypePrefix {
 		if len(tpl) > 0 && tpl[0] != '/' {
 			return fmt.Errorf("mux: path must start with a slash, got %q", tpl)
 		}
@@ -178,7 +193,10 @@ func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery
 			tpl = strings.TrimRight(r.regexp.path.template, "/") + tpl
 		}
 	}
-	rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash, r.useEncodedPath)
+	rr, err := newRouteRegexp(tpl, typ, routeRegexpOptions{
+		strictSlash:    r.strictSlash,
+		useEncodedPath: r.useEncodedPath,
+	})
 	if err != nil {
 		return err
 	}
@@ -187,7 +205,7 @@ func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery
 			return err
 		}
 	}
-	if matchHost {
+	if typ == regexpTypeHost {
 		if r.regexp.path != nil {
 			if err = uniqueVars(rr.varsN, r.regexp.path.varsN); err != nil {
 				return err
@@ -200,7 +218,7 @@ func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery
 				return err
 			}
 		}
-		if matchQuery {
+		if typ == regexpTypeQuery {
 			r.regexp.queries = append(r.regexp.queries, rr)
 		} else {
 			r.regexp.path = rr
@@ -222,9 +240,9 @@ func (m headerMatcher) Match(r *http.Request, match *RouteMatch) bool {
 // Headers adds a matcher for request header values.
 // It accepts a sequence of key/value pairs to be matched. For example:
 //
-//     r := mux.NewRouter()
-//     r.Headers("Content-Type", "application/json",
-//               "X-Requested-With", "XMLHttpRequest")
+//	r := mux.NewRouter().NewRoute()
+//	r.Headers("Content-Type", "application/json",
+//	          "X-Requested-With", "XMLHttpRequest")
 //
 // The above route will only match if both request header values match.
 // If the value is an empty string, it will match any value if the key is set.
@@ -247,12 +265,13 @@ func (m headerRegexMatcher) Match(r *http.Request, match *RouteMatch) bool {
 // HeadersRegexp accepts a sequence of key/value pairs, where the value has regex
 // support. For example:
 //
-//     r := mux.NewRouter()
-//     r.HeadersRegexp("Content-Type", "application/(text|json)",
-//               "X-Requested-With", "XMLHttpRequest")
+//	r := mux.NewRouter().NewRoute()
+//	r.HeadersRegexp("Content-Type", "application/(text|json)",
+//	          "X-Requested-With", "XMLHttpRequest")
 //
 // The above route will only match if both the request header matches both regular expressions.
-// It the value is an empty string, it will match any value if the key is set.
+// If the value is an empty string, it will match any value if the key is set.
+// Use the start and end of string anchors (^ and $) to match an exact value.
 func (r *Route) HeadersRegexp(pairs ...string) *Route {
 	if r.err == nil {
 		var headers map[string]*regexp.Regexp
@@ -274,15 +293,15 @@ func (r *Route) HeadersRegexp(pairs ...string) *Route {
 //
 // For example:
 //
-//     r := mux.NewRouter()
-//     r.Host("www.example.com")
-//     r.Host("{subdomain}.domain.com")
-//     r.Host("{subdomain:[a-z]+}.domain.com")
+//	r := mux.NewRouter().NewRoute()
+//	r.Host("www.example.com")
+//	r.Host("{subdomain}.domain.com")
+//	r.Host("{subdomain:[a-z]+}.domain.com")
 //
 // Variable names must be unique in a given route. They can be retrieved
 // calling mux.Vars(request).
 func (r *Route) Host(tpl string) *Route {
-	r.err = r.addRegexpMatcher(tpl, true, false, false)
+	r.err = r.addRegexpMatcher(tpl, regexpTypeHost)
 	return r
 }
 
@@ -333,16 +352,16 @@ func (r *Route) Methods(methods ...string) *Route {
 //
 // For example:
 //
-//     r := mux.NewRouter()
-//     r.Path("/products/").Handler(ProductsHandler)
-//     r.Path("/products/{key}").Handler(ProductsHandler)
-//     r.Path("/articles/{category}/{id:[0-9]+}").
-//       Handler(ArticleHandler)
+//	r := mux.NewRouter().NewRoute()
+//	r.Path("/products/").Handler(ProductsHandler)
+//	r.Path("/products/{key}").Handler(ProductsHandler)
+//	r.Path("/articles/{category}/{id:[0-9]+}").
+//	  Handler(ArticleHandler)
 //
 // Variable names must be unique in a given route. They can be retrieved
 // calling mux.Vars(request).
 func (r *Route) Path(tpl string) *Route {
-	r.err = r.addRegexpMatcher(tpl, false, false, false)
+	r.err = r.addRegexpMatcher(tpl, regexpTypePath)
 	return r
 }
 
@@ -358,7 +377,7 @@ func (r *Route) Path(tpl string) *Route {
 // Also note that the setting of Router.StrictSlash() has no effect on routes
 // with a PathPrefix matcher.
 func (r *Route) PathPrefix(tpl string) *Route {
-	r.err = r.addRegexpMatcher(tpl, false, true, false)
+	r.err = r.addRegexpMatcher(tpl, regexpTypePrefix)
 	return r
 }
 
@@ -368,13 +387,13 @@ func (r *Route) PathPrefix(tpl string) *Route {
 // It accepts a sequence of key/value pairs. Values may define variables.
 // For example:
 //
-//     r := mux.NewRouter()
-//     r.Queries("foo", "bar", "id", "{id:[0-9]+}")
+//	r := mux.NewRouter().NewRoute()
+//	r.Queries("foo", "bar", "id", "{id:[0-9]+}")
 //
 // The above route will only match if the URL contains the defined queries
 // values, e.g.: ?foo=bar&id=42.
 //
-// It the value is an empty string, it will match any value if the key is set.
+// If the value is an empty string, it will match any value if the key is set.
 //
 // Variables can define an optional regexp pattern to be matched:
 //
@@ -389,7 +408,7 @@ func (r *Route) Queries(pairs ...string) *Route {
 		return nil
 	}
 	for i := 0; i < length; i += 2 {
-		if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, false, true); r.err != nil {
+		if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], regexpTypeQuery); r.err != nil {
 			return r
 		}
 	}
@@ -403,16 +422,35 @@ func (r *Route) Queries(pairs ...string) *Route {
 type schemeMatcher []string
 
 func (m schemeMatcher) Match(r *http.Request, match *RouteMatch) bool {
-	return matchInArray(m, r.URL.Scheme)
+	scheme := r.URL.Scheme
+	// https://golang.org/pkg/net/http/#Request
+	// "For [most] server requests, fields other than Path and RawQuery will be
+	// empty."
+	// Since we're an http muxer, the scheme is either going to be http or https
+	// though, so we can just set it based on the tls termination state.
+	if scheme == "" {
+		if r.TLS == nil {
+			scheme = "http"
+		} else {
+			scheme = "https"
+		}
+	}
+	return matchInArray(m, scheme)
 }
 
 // Schemes adds a matcher for URL schemes.
 // It accepts a sequence of schemes to be matched, e.g.: "http", "https".
+// If the request's URL has a scheme set, it will be matched against.
+// Generally, the URL scheme will only be set if a previous handler set it,
+// such as the ProxyHeaders handler from gorilla/handlers.
+// If unset, the scheme will be determined based on the request's TLS
+// termination state.
+// The first argument to Schemes will be used when constructing a route URL.
 func (r *Route) Schemes(schemes ...string) *Route {
 	for k, v := range schemes {
 		schemes[k] = strings.ToLower(v)
 	}
-	if r.buildScheme == "" && len(schemes) > 0 {
+	if len(schemes) > 0 {
 		r.buildScheme = schemes[0]
 	}
 	return r.addMatcher(schemeMatcher(schemes))
@@ -427,7 +465,15 @@ type BuildVarsFunc func(map[string]string) map[string]string
 // BuildVarsFunc adds a custom function to be used to modify build variables
 // before a route's URL is built.
 func (r *Route) BuildVarsFunc(f BuildVarsFunc) *Route {
-	r.buildVarsFunc = f
+	if r.buildVarsFunc != nil {
+		// compose the old and new functions
+		old := r.buildVarsFunc
+		r.buildVarsFunc = func(m map[string]string) map[string]string {
+			return f(old(m))
+		}
+	} else {
+		r.buildVarsFunc = f
+	}
 	return r
 }
 
@@ -437,16 +483,17 @@ func (r *Route) BuildVarsFunc(f BuildVarsFunc) *Route {
 //
 // It will test the inner routes only if the parent route matched. For example:
 //
-//     r := mux.NewRouter()
-//     s := r.Host("www.example.com").Subrouter()
-//     s.HandleFunc("/products/", ProductsHandler)
-//     s.HandleFunc("/products/{key}", ProductHandler)
-//     s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler)
+//	r := mux.NewRouter().NewRoute()
+//	s := r.Host("www.example.com").Subrouter()
+//	s.HandleFunc("/products/", ProductsHandler)
+//	s.HandleFunc("/products/{key}", ProductHandler)
+//	s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler)
 //
 // Here, the routes registered in the subrouter won't be tested if the host
 // doesn't match.
 func (r *Route) Subrouter() *Router {
-	router := &Router{parent: r, strictSlash: r.strictSlash}
+	// initialize a subrouter with a copy of the parent route's configuration
+	router := &Router{routeConf: copyRouteConf(r.routeConf), namedRoutes: r.namedRoutes}
 	r.addMatcher(router)
 	return router
 }
@@ -460,29 +507,36 @@ func (r *Route) Subrouter() *Router {
 // It accepts a sequence of key/value pairs for the route variables. For
 // example, given this route:
 //
-//     r := mux.NewRouter()
-//     r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
-//       Name("article")
+//	r := mux.NewRouter()
+//	r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
+//	  Name("article")
 //
 // ...a URL for it can be built using:
 //
-//     url, err := r.Get("article").URL("category", "technology", "id", "42")
+//	url, err := r.Get("article").URL("category", "technology", "id", "42")
 //
 // ...which will return an url.URL with the following path:
 //
-//     "/articles/technology/42"
+//	"/articles/technology/42"
 //
 // This also works for host variables:
 //
-//     r := mux.NewRouter()
-//     r.Host("{subdomain}.domain.com").
-//       HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
-//       Name("article")
+//	r := mux.NewRouter()
+//	r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
+//	  Host("{subdomain}.domain.com").
+//	  Name("article")
 //
-//     // url.String() will be "http://news.domain.com/articles/technology/42"
-//     url, err := r.Get("article").URL("subdomain", "news",
-//                                      "category", "technology",
-//                                      "id", "42")
+//	// url.String() will be "http://news.domain.com/articles/technology/42"
+//	url, err := r.Get("article").URL("subdomain", "news",
+//	                                 "category", "technology",
+//	                                 "id", "42")
+//
+// The scheme of the resulting url will be the first argument that was passed to Schemes:
+//
+//	// url.String() will be "https://example.com"
+//	r := mux.NewRouter().NewRoute()
+//	url, err := r.Host("example.com")
+//	             .Schemes("https", "http").URL()
 //
 // All variables defined in the route are required, and their values must
 // conform to the corresponding patterns.
@@ -490,9 +544,6 @@ func (r *Route) URL(pairs ...string) (*url.URL, error) {
 	if r.err != nil {
 		return nil, r.err
 	}
-	if r.regexp == nil {
-		return nil, errors.New("mux: route doesn't have a host or path")
-	}
 	values, err := r.prepareVars(pairs...)
 	if err != nil {
 		return nil, err
@@ -504,8 +555,8 @@ func (r *Route) URL(pairs ...string) (*url.URL, error) {
 			return nil, err
 		}
 		scheme = "http"
-		if s := r.getBuildScheme(); s != "" {
-			scheme = s
+		if r.buildScheme != "" {
+			scheme = r.buildScheme
 		}
 	}
 	if r.regexp.path != nil {
@@ -535,7 +586,7 @@ func (r *Route) URLHost(pairs ...string) (*url.URL, error) {
 	if r.err != nil {
 		return nil, r.err
 	}
-	if r.regexp == nil || r.regexp.host == nil {
+	if r.regexp.host == nil {
 		return nil, errors.New("mux: route doesn't have a host")
 	}
 	values, err := r.prepareVars(pairs...)
@@ -550,8 +601,8 @@ func (r *Route) URLHost(pairs ...string) (*url.URL, error) {
 		Scheme: "http",
 		Host:   host,
 	}
-	if s := r.getBuildScheme(); s != "" {
-		u.Scheme = s
+	if r.buildScheme != "" {
+		u.Scheme = r.buildScheme
 	}
 	return u, nil
 }
@@ -563,7 +614,7 @@ func (r *Route) URLPath(pairs ...string) (*url.URL, error) {
 	if r.err != nil {
 		return nil, r.err
 	}
-	if r.regexp == nil || r.regexp.path == nil {
+	if r.regexp.path == nil {
 		return nil, errors.New("mux: route doesn't have a path")
 	}
 	values, err := r.prepareVars(pairs...)
@@ -588,7 +639,7 @@ func (r *Route) GetPathTemplate() (string, error) {
 	if r.err != nil {
 		return "", r.err
 	}
-	if r.regexp == nil || r.regexp.path == nil {
+	if r.regexp.path == nil {
 		return "", errors.New("mux: route doesn't have a path")
 	}
 	return r.regexp.path.template, nil
@@ -602,16 +653,54 @@ func (r *Route) GetPathRegexp() (string, error) {
 	if r.err != nil {
 		return "", r.err
 	}
-	if r.regexp == nil || r.regexp.path == nil {
+	if r.regexp.path == nil {
 		return "", errors.New("mux: route does not have a path")
 	}
 	return r.regexp.path.regexp.String(), nil
 }
 
+// GetQueriesRegexp returns the expanded regular expressions used to match the
+// route queries.
+// This is useful for building simple REST API documentation and for instrumentation
+// against third-party services.
+// An error will be returned if the route does not have queries.
+func (r *Route) GetQueriesRegexp() ([]string, error) {
+	if r.err != nil {
+		return nil, r.err
+	}
+	if r.regexp.queries == nil {
+		return nil, errors.New("mux: route doesn't have queries")
+	}
+	queries := make([]string, 0, len(r.regexp.queries))
+	for _, query := range r.regexp.queries {
+		queries = append(queries, query.regexp.String())
+	}
+	return queries, nil
+}
+
+// GetQueriesTemplates returns the templates used to build the
+// query matching.
+// This is useful for building simple REST API documentation and for instrumentation
+// against third-party services.
+// An error will be returned if the route does not define queries.
+func (r *Route) GetQueriesTemplates() ([]string, error) {
+	if r.err != nil {
+		return nil, r.err
+	}
+	if r.regexp.queries == nil {
+		return nil, errors.New("mux: route doesn't have queries")
+	}
+	queries := make([]string, 0, len(r.regexp.queries))
+	for _, query := range r.regexp.queries {
+		queries = append(queries, query.template)
+	}
+	return queries, nil
+}
+
 // GetMethods returns the methods the route matches against
 // This is useful for building simple REST API documentation and for instrumentation
 // against third-party services.
-// An empty list will be returned if route does not have methods.
+// An error will be returned if route does not have methods.
 func (r *Route) GetMethods() ([]string, error) {
 	if r.err != nil {
 		return nil, r.err
@@ -621,7 +710,7 @@ func (r *Route) GetMethods() ([]string, error) {
 			return []string(methods), nil
 		}
 	}
-	return nil, nil
+	return nil, errors.New("mux: route doesn't have methods")
 }
 
 // GetHostTemplate returns the template used to build the
@@ -633,12 +722,31 @@ func (r *Route) GetHostTemplate() (string, error) {
 	if r.err != nil {
 		return "", r.err
 	}
-	if r.regexp == nil || r.regexp.host == nil {
+	if r.regexp.host == nil {
 		return "", errors.New("mux: route doesn't have a host")
 	}
 	return r.regexp.host.template, nil
 }
 
+// GetVarNames returns the names of all variables added by regexp matchers
+// These can be used to know which route variables should be passed into r.URL()
+func (r *Route) GetVarNames() ([]string, error) {
+	if r.err != nil {
+		return nil, r.err
+	}
+	var varNames []string
+	if r.regexp.host != nil {
+		varNames = append(varNames, r.regexp.host.varsN...)
+	}
+	if r.regexp.path != nil {
+		varNames = append(varNames, r.regexp.path.varsN...)
+	}
+	for _, regx := range r.regexp.queries {
+		varNames = append(varNames, regx.varsN...)
+	}
+	return varNames, nil
+}
+
 // prepareVars converts the route variable pairs into a map. If the route has a
 // BuildVarsFunc, it is invoked.
 func (r *Route) prepareVars(pairs ...string) (map[string]string, error) {
@@ -650,64 +758,8 @@ func (r *Route) prepareVars(pairs ...string) (map[string]string, error) {
 }
 
 func (r *Route) buildVars(m map[string]string) map[string]string {
-	if r.parent != nil {
-		m = r.parent.buildVars(m)
-	}
 	if r.buildVarsFunc != nil {
 		m = r.buildVarsFunc(m)
 	}
 	return m
 }
-
-// ----------------------------------------------------------------------------
-// parentRoute
-// ----------------------------------------------------------------------------
-
-// parentRoute allows routes to know about parent host and path definitions.
-type parentRoute interface {
-	getBuildScheme() string
-	getNamedRoutes() map[string]*Route
-	getRegexpGroup() *routeRegexpGroup
-	buildVars(map[string]string) map[string]string
-}
-
-func (r *Route) getBuildScheme() string {
-	if r.buildScheme != "" {
-		return r.buildScheme
-	}
-	if r.parent != nil {
-		return r.parent.getBuildScheme()
-	}
-	return ""
-}
-
-// getNamedRoutes returns the map where named routes are registered.
-func (r *Route) getNamedRoutes() map[string]*Route {
-	if r.parent == nil {
-		// During tests router is not always set.
-		r.parent = NewRouter()
-	}
-	return r.parent.getNamedRoutes()
-}
-
-// getRegexpGroup returns regexp definitions from this route.
-func (r *Route) getRegexpGroup() *routeRegexpGroup {
-	if r.regexp == nil {
-		if r.parent == nil {
-			// During tests router is not always set.
-			r.parent = NewRouter()
-		}
-		regexp := r.parent.getRegexpGroup()
-		if regexp == nil {
-			r.regexp = new(routeRegexpGroup)
-		} else {
-			// Copy.
-			r.regexp = &routeRegexpGroup{
-				host:    regexp.host,
-				path:    regexp.path,
-				queries: regexp.queries,
-			}
-		}
-	}
-	return r.regexp
-}
diff --git a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/registry.go b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/registry.go
index 12328099..28637a4d 100644
--- a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/registry.go
+++ b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/registry.go
@@ -9,6 +9,7 @@ import (
 	"github.com/golang/glog"
 	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
 	plugin "github.com/golang/protobuf/protoc-gen-go/plugin"
+	"google.golang.org/genproto/googleapis/api/annotations"
 )
 
 // Registry is a registry of information extracted from plugin.CodeGeneratorRequest.
@@ -25,6 +26,9 @@ type Registry struct {
 	// prefix is a prefix to be inserted to golang package paths generated from proto package names.
 	prefix string
 
+	// importPath is used as the package if no input files declare go_package. If it contains slashes, everything up to the rightmost slash is ignored.
+	importPath string
+
 	// pkgMap is a user-specified mapping from file path to proto package.
 	pkgMap map[string]string
 
@@ -33,16 +37,86 @@ type Registry struct {
 
 	// allowDeleteBody permits http delete methods to have a body
 	allowDeleteBody bool
+
+	// externalHttpRules is a mapping from fully qualified service method names to additional HttpRules applicable besides the ones found in annotations.
+	externalHTTPRules map[string][]*annotations.HttpRule
+
+	// allowMerge generation one swagger file out of multiple protos
+	allowMerge bool
+
+	// mergeFileName target swagger file name after merge
+	mergeFileName string
+
+	// allowRepeatedFieldsInBody permits repeated field in body field path of `google.api.http` annotation option
+	allowRepeatedFieldsInBody bool
+
+	// includePackageInTags controls whether the package name defined in the `package` directive
+	// in the proto file can be prepended to the gRPC service name in the `Tags` field of every operation.
+	includePackageInTags bool
+
+	// repeatedPathParamSeparator specifies how path parameter repeated fields are separated
+	repeatedPathParamSeparator repeatedFieldSeparator
+
+	// useJSONNamesForFields if true json tag name is used for generating fields in swagger definitions,
+	// otherwise the original proto name is used. It's helpful for synchronizing the swagger definition
+	// with grpc-gateway response, if it uses json tags for marshaling.
+	useJSONNamesForFields bool
+
+	// useFQNForSwaggerName if true swagger names will use the full qualified name (FQN) from proto definition,
+	// and generate a dot-separated swagger name concatenating all elements from the proto FQN.
+	// If false, the default behavior is to concat the last 2 elements of the FQN if they are unique, otherwise concat
+	// all the elements of the FQN without any separator
+	useFQNForSwaggerName bool
+
+	// allowColonFinalSegments determines whether colons are permitted
+	// in the final segment of a path.
+	allowColonFinalSegments bool
+
+	// useGoTemplate determines whether you want to use GO templates
+	// in your protofile comments
+	useGoTemplate bool
+
+	// enumsAsInts render enum as integer, as opposed to string
+	enumsAsInts bool
+
+	// disableDefaultErrors disables the generation of the default error types.
+	// This is useful for users who have defined custom error handling.
+	disableDefaultErrors bool
+
+	// simpleOperationIDs removes the service prefix from the generated
+	// operationIDs. This risks generating duplicate operationIDs.
+	simpleOperationIDs bool
+
+	// warnOnUnboundMethods causes the registry to emit warning logs if an RPC method
+	// has no HttpRule annotation.
+	warnOnUnboundMethods bool
+
+	// generateUnboundMethods causes the registry to generate proxy methods even for
+	// RPC methods that have no HttpRule annotation.
+	generateUnboundMethods bool
+
+	// omitPackageDoc, if false, causes a package comment to be included in the generated code.
+	omitPackageDoc bool
+}
+
+type repeatedFieldSeparator struct {
+	name string
+	sep  rune
 }
 
 // NewRegistry returns a new Registry.
 func NewRegistry() *Registry {
 	return &Registry{
-		msgs:       make(map[string]*Message),
-		enums:      make(map[string]*Enum),
-		files:      make(map[string]*File),
-		pkgMap:     make(map[string]string),
-		pkgAliases: make(map[string]string),
+		msgs:              make(map[string]*Message),
+		enums:             make(map[string]*Enum),
+		files:             make(map[string]*File),
+		pkgMap:            make(map[string]string),
+		pkgAliases:        make(map[string]string),
+		externalHTTPRules: make(map[string][]*annotations.HttpRule),
+		repeatedPathParamSeparator: repeatedFieldSeparator{
+			name: "csv",
+			sep:  ',',
+		},
 	}
 }
 
@@ -58,7 +132,7 @@ func (r *Registry) Load(req *plugin.CodeGeneratorRequest) error {
 		if target == nil {
 			return fmt.Errorf("no such file: %s", name)
 		}
-		name := packageIdentityName(target.FileDescriptorProto)
+		name := r.packageIdentityName(target.FileDescriptorProto)
 		if targetPkg == "" {
 			targetPkg = name
 		} else {
@@ -80,7 +154,7 @@ func (r *Registry) Load(req *plugin.CodeGeneratorRequest) error {
 func (r *Registry) loadFile(file *descriptor.FileDescriptorProto) {
 	pkg := GoPackage{
 		Path: r.goPackagePath(file),
-		Name: defaultGoPackageName(file),
+		Name: r.defaultGoPackageName(file),
 	}
 	if err := r.ReserveGoPackageAlias(pkg.Name, pkg.Path); err != nil {
 		for i := 0; ; i++ {
@@ -202,16 +276,56 @@ func (r *Registry) LookupFile(name string) (*File, error) {
 	return f, nil
 }
 
+// LookupExternalHTTPRules looks up external http rules by fully qualified service method name
+func (r *Registry) LookupExternalHTTPRules(qualifiedMethodName string) []*annotations.HttpRule {
+	return r.externalHTTPRules[qualifiedMethodName]
+}
+
+// AddExternalHTTPRule adds an external http rule for the given fully qualified service method name
+func (r *Registry) AddExternalHTTPRule(qualifiedMethodName string, rule *annotations.HttpRule) {
+	r.externalHTTPRules[qualifiedMethodName] = append(r.externalHTTPRules[qualifiedMethodName], rule)
+}
+
+// UnboundExternalHTTPRules returns the list of External HTTPRules
+// which does not have a matching method in the registry
+func (r *Registry) UnboundExternalHTTPRules() []string {
+	allServiceMethods := make(map[string]struct{})
+	for _, f := range r.files {
+		for _, s := range f.GetService() {
+			svc := &Service{File: f, ServiceDescriptorProto: s}
+			for _, m := range s.GetMethod() {
+				method := &Method{Service: svc, MethodDescriptorProto: m}
+				allServiceMethods[method.FQMN()] = struct{}{}
+			}
+		}
+	}
+
+	var missingMethods []string
+	for httpRuleMethod := range r.externalHTTPRules {
+		if _, ok := allServiceMethods[httpRuleMethod]; !ok {
+			missingMethods = append(missingMethods, httpRuleMethod)
+		}
+	}
+	return missingMethods
+}
+
 // AddPkgMap adds a mapping from a .proto file to proto package name.
 func (r *Registry) AddPkgMap(file, protoPkg string) {
 	r.pkgMap[file] = protoPkg
 }
 
-// SetPrefix registeres the perfix to be added to go package paths generated from proto package names.
+// SetPrefix registers the prefix to be added to go package paths generated from proto package names.
 func (r *Registry) SetPrefix(prefix string) {
 	r.prefix = prefix
 }
 
+// SetImportPath registers the importPath which is used as the package if no
+// input files declare go_package. If it contains slashes, everything up to the
+// rightmost slash is ignored.
+func (r *Registry) SetImportPath(importPath string) {
+	r.importPath = importPath
+}
+
 // ReserveGoPackageAlias reserves the unique alias of go package.
 // If succeeded, the alias will be never used for other packages in generated go files.
 // If failed, the alias is already taken by another package, so you need to use another
@@ -239,6 +353,9 @@ func (r *Registry) goPackagePath(f *descriptor.FileDescriptorProto) string {
 	gopkg := f.Options.GetGoPackage()
 	idx := strings.LastIndex(gopkg, "/")
 	if idx >= 0 {
+		if sc := strings.LastIndex(gopkg, ";"); sc > 0 {
+			gopkg = gopkg[:sc+1-1]
+		}
 		return gopkg
 	}
 
@@ -269,25 +386,216 @@ func (r *Registry) SetAllowDeleteBody(allow bool) {
 	r.allowDeleteBody = allow
 }
 
+// SetAllowMerge controls whether generation one swagger file out of multiple protos
+func (r *Registry) SetAllowMerge(allow bool) {
+	r.allowMerge = allow
+}
+
+// IsAllowMerge whether generation one swagger file out of multiple protos
+func (r *Registry) IsAllowMerge() bool {
+	return r.allowMerge
+}
+
+// SetMergeFileName controls the target swagger file name out of multiple protos
+func (r *Registry) SetMergeFileName(mergeFileName string) {
+	r.mergeFileName = mergeFileName
+}
+
+// SetAllowRepeatedFieldsInBody controls whether repeated field can be used
+// in `body` and `response_body` (`google.api.http` annotation option) field path or not
+func (r *Registry) SetAllowRepeatedFieldsInBody(allow bool) {
+	r.allowRepeatedFieldsInBody = allow
+}
+
+// IsAllowRepeatedFieldsInBody checks if repeated field can be used
+// in `body` and `response_body` (`google.api.http` annotation option) field path or not
+func (r *Registry) IsAllowRepeatedFieldsInBody() bool {
+	return r.allowRepeatedFieldsInBody
+}
+
+// SetIncludePackageInTags controls whether the package name defined in the `package` directive
+// in the proto file can be prepended to the gRPC service name in the `Tags` field of every operation.
+func (r *Registry) SetIncludePackageInTags(allow bool) {
+	r.includePackageInTags = allow
+}
+
+// IsIncludePackageInTags checks whether the package name defined in the `package` directive
+// in the proto file can be prepended to the gRPC service name in the `Tags` field of every operation.
+func (r *Registry) IsIncludePackageInTags() bool {
+	return r.includePackageInTags
+}
+
+// GetRepeatedPathParamSeparator returns a rune spcifying how
+// path parameter repeated fields are separated.
+func (r *Registry) GetRepeatedPathParamSeparator() rune {
+	return r.repeatedPathParamSeparator.sep
+}
+
+// GetRepeatedPathParamSeparatorName returns the name path parameter repeated
+// fields repeatedFieldSeparator. I.e. 'csv', 'pipe', 'ssv' or 'tsv'
+func (r *Registry) GetRepeatedPathParamSeparatorName() string {
+	return r.repeatedPathParamSeparator.name
+}
+
+// SetRepeatedPathParamSeparator sets how path parameter repeated fields are
+// separated. Allowed names are 'csv', 'pipe', 'ssv' and 'tsv'.
+func (r *Registry) SetRepeatedPathParamSeparator(name string) error {
+	var sep rune
+	switch name {
+	case "csv":
+		sep = ','
+	case "pipes":
+		sep = '|'
+	case "ssv":
+		sep = ' '
+	case "tsv":
+		sep = '\t'
+	default:
+		return fmt.Errorf("unknown repeated path parameter separator: %s", name)
+	}
+	r.repeatedPathParamSeparator = repeatedFieldSeparator{
+		name: name,
+		sep:  sep,
+	}
+	return nil
+}
+
+// SetUseJSONNamesForFields sets useJSONNamesForFields
+func (r *Registry) SetUseJSONNamesForFields(use bool) {
+	r.useJSONNamesForFields = use
+}
+
+// GetUseJSONNamesForFields returns useJSONNamesForFields
+func (r *Registry) GetUseJSONNamesForFields() bool {
+	return r.useJSONNamesForFields
+}
+
+// SetUseFQNForSwaggerName sets useFQNForSwaggerName
+func (r *Registry) SetUseFQNForSwaggerName(use bool) {
+	r.useFQNForSwaggerName = use
+}
+
+// GetAllowColonFinalSegments returns allowColonFinalSegments
+func (r *Registry) GetAllowColonFinalSegments() bool {
+	return r.allowColonFinalSegments
+}
+
+// SetAllowColonFinalSegments sets allowColonFinalSegments
+func (r *Registry) SetAllowColonFinalSegments(use bool) {
+	r.allowColonFinalSegments = use
+}
+
+// GetUseFQNForSwaggerName returns useFQNForSwaggerName
+func (r *Registry) GetUseFQNForSwaggerName() bool {
+	return r.useFQNForSwaggerName
+}
+
+// GetMergeFileName return the target merge swagger file name
+func (r *Registry) GetMergeFileName() string {
+	return r.mergeFileName
+}
+
+// SetUseGoTemplate sets useGoTemplate
+func (r *Registry) SetUseGoTemplate(use bool) {
+	r.useGoTemplate = use
+}
+
+// GetUseGoTemplate returns useGoTemplate
+func (r *Registry) GetUseGoTemplate() bool {
+	return r.useGoTemplate
+}
+
+// SetEnumsAsInts set enumsAsInts
+func (r *Registry) SetEnumsAsInts(enumsAsInts bool) {
+	r.enumsAsInts = enumsAsInts
+}
+
+// GetEnumsAsInts returns enumsAsInts
+func (r *Registry) GetEnumsAsInts() bool {
+	return r.enumsAsInts
+}
+
+// SetDisableDefaultErrors sets disableDefaultErrors
+func (r *Registry) SetDisableDefaultErrors(use bool) {
+	r.disableDefaultErrors = use
+}
+
+// GetDisableDefaultErrors returns disableDefaultErrors
+func (r *Registry) GetDisableDefaultErrors() bool {
+	return r.disableDefaultErrors
+}
+
+// SetSimpleOperationIDs sets simpleOperationIDs
+func (r *Registry) SetSimpleOperationIDs(use bool) {
+	r.simpleOperationIDs = use
+}
+
+// GetSimpleOperationIDs returns simpleOperationIDs
+func (r *Registry) GetSimpleOperationIDs() bool {
+	return r.simpleOperationIDs
+}
+
+// SetWarnOnUnboundMethods sets warnOnUnboundMethods
+func (r *Registry) SetWarnOnUnboundMethods(warn bool) {
+	r.warnOnUnboundMethods = warn
+}
+
+// SetGenerateUnboundMethods sets generateUnboundMethods
+func (r *Registry) SetGenerateUnboundMethods(generate bool) {
+	r.generateUnboundMethods = generate
+}
+
+// SetOmitPackageDoc controls whether the generated code contains a package comment (if set to false, it will contain one)
+func (r *Registry) SetOmitPackageDoc(omit bool) {
+	r.omitPackageDoc = omit
+}
+
+// GetOmitPackageDoc returns whether a package comment will be omitted from the generated code
+func (r *Registry) GetOmitPackageDoc() bool {
+	return r.omitPackageDoc
+}
+
+// sanitizePackageName replaces unallowed character in package name
+// with allowed character.
+func sanitizePackageName(pkgName string) string {
+	pkgName = strings.Replace(pkgName, ".", "_", -1)
+	pkgName = strings.Replace(pkgName, "-", "_", -1)
+	return pkgName
+}
+
 // defaultGoPackageName returns the default go package name to be used for go files generated from "f".
 // You might need to use an unique alias for the package when you import it.  Use ReserveGoPackageAlias to get a unique alias.
-func defaultGoPackageName(f *descriptor.FileDescriptorProto) string {
-	name := packageIdentityName(f)
-	return strings.Replace(name, ".", "_", -1)
+func (r *Registry) defaultGoPackageName(f *descriptor.FileDescriptorProto) string {
+	name := r.packageIdentityName(f)
+	return sanitizePackageName(name)
 }
 
 // packageIdentityName returns the identity of packages.
 // protoc-gen-grpc-gateway rejects CodeGenerationRequests which contains more than one packages
 // as protoc-gen-go does.
-func packageIdentityName(f *descriptor.FileDescriptorProto) string {
+func (r *Registry) packageIdentityName(f *descriptor.FileDescriptorProto) string {
 	if f.Options != nil && f.Options.GoPackage != nil {
 		gopkg := f.Options.GetGoPackage()
 		idx := strings.LastIndex(gopkg, "/")
 		if idx < 0 {
-			return gopkg
+			gopkg = gopkg[idx+1:]
 		}
 
-		return gopkg[idx+1:]
+		gopkg = gopkg[idx+1:]
+		// package name is overrided with the string after the
+		// ';' character
+		sc := strings.IndexByte(gopkg, ';')
+		if sc < 0 {
+			return sanitizePackageName(gopkg)
+
+		}
+		return sanitizePackageName(gopkg[sc+1:])
+	}
+	if p := r.importPath; len(p) != 0 {
+		if i := strings.LastIndex(p, "/"); i >= 0 {
+			p = p[i+1:]
+		}
+		return p
 	}
 
 	if f.Package == nil {
diff --git a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/services.go b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/services.go
index c9dfec8e..48d00b65 100644
--- a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/services.go
+++ b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/services.go
@@ -20,20 +20,37 @@ func (r *Registry) loadServices(file *File) error {
 	for _, sd := range file.GetService() {
 		glog.V(2).Infof("Registering %s", sd.GetName())
 		svc := &Service{
-			File: file,
+			File:                   file,
 			ServiceDescriptorProto: sd,
 		}
 		for _, md := range sd.GetMethod() {
 			glog.V(2).Infof("Processing %s.%s", sd.GetName(), md.GetName())
 			opts, err := extractAPIOptions(md)
 			if err != nil {
-				glog.Errorf("Failed to extract ApiMethodOptions from %s.%s: %v", svc.GetName(), md.GetName(), err)
+				glog.Errorf("Failed to extract HttpRule from %s.%s: %v", svc.GetName(), md.GetName(), err)
 				return err
 			}
-			if opts == nil {
-				glog.V(1).Infof("Found non-target method: %s.%s", svc.GetName(), md.GetName())
+			optsList := r.LookupExternalHTTPRules((&Method{Service: svc, MethodDescriptorProto: md}).FQMN())
+			if opts != nil {
+				optsList = append(optsList, opts)
 			}
-			meth, err := r.newMethod(svc, md, opts)
+			if len(optsList) == 0 {
+				if r.generateUnboundMethods {
+					defaultOpts, err := defaultAPIOptions(svc, md)
+					if err != nil {
+						glog.Errorf("Failed to generate default HttpRule from %s.%s: %v", svc.GetName(), md.GetName(), err)
+						return err
+					}
+					optsList = append(optsList, defaultOpts)
+				} else {
+					logFn := glog.V(1).Infof
+					if r.warnOnUnboundMethods {
+						logFn = glog.Warningf
+					}
+					logFn("No HttpRule found for method: %s.%s", svc.GetName(), md.GetName())
+				}
+			}
+			meth, err := r.newMethod(svc, md, optsList)
 			if err != nil {
 				return err
 			}
@@ -49,7 +66,7 @@ func (r *Registry) loadServices(file *File) error {
 	return nil
 }
 
-func (r *Registry) newMethod(svc *Service, md *descriptor.MethodDescriptorProto, opts *options.HttpRule) (*Method, error) {
+func (r *Registry) newMethod(svc *Service, md *descriptor.MethodDescriptorProto, optsList []*options.HttpRule) (*Method, error) {
 	requestType, err := r.LookupMsg(svc.File.GetPackage(), md.GetInputType())
 	if err != nil {
 		return nil, err
@@ -75,7 +92,7 @@ func (r *Registry) newMethod(svc *Service, md *descriptor.MethodDescriptorProto,
 			httpMethod = "GET"
 			pathTemplate = opts.GetGet()
 			if opts.Body != "" {
-				return nil, fmt.Errorf("needs request body even though http method is GET: %s", md.GetName())
+				return nil, fmt.Errorf("must not set request body when http method is GET: %s", md.GetName())
 			}
 
 		case opts.GetPut() != "":
@@ -90,7 +107,7 @@ func (r *Registry) newMethod(svc *Service, md *descriptor.MethodDescriptorProto,
 			httpMethod = "DELETE"
 			pathTemplate = opts.GetDelete()
 			if opts.Body != "" && !r.allowDeleteBody {
-				return nil, fmt.Errorf("needs request body even though http method is DELETE: %s", md.GetName())
+				return nil, fmt.Errorf("must not set request body when http method is DELETE except allow_delete_body option is true: %s", md.GetName())
 			}
 
 		case opts.GetPatch() != "":
@@ -139,25 +156,41 @@ func (r *Registry) newMethod(svc *Service, md *descriptor.MethodDescriptorProto,
 			return nil, err
 		}
 
+		b.ResponseBody, err = r.newResponse(meth, opts.ResponseBody)
+		if err != nil {
+			return nil, err
+		}
+
 		return b, nil
 	}
-	b, err := newBinding(opts, 0)
-	if err != nil {
-		return nil, err
-	}
 
-	if b != nil {
-		meth.Bindings = append(meth.Bindings, b)
-	}
-	for i, additional := range opts.GetAdditionalBindings() {
-		if len(additional.AdditionalBindings) > 0 {
-			return nil, fmt.Errorf("additional_binding in additional_binding not allowed: %s.%s", svc.GetName(), meth.GetName())
-		}
-		b, err := newBinding(additional, i+1)
+	applyOpts := func(opts *options.HttpRule) error {
+		b, err := newBinding(opts, len(meth.Bindings))
 		if err != nil {
+			return err
+		}
+
+		if b != nil {
+			meth.Bindings = append(meth.Bindings, b)
+		}
+		for _, additional := range opts.GetAdditionalBindings() {
+			if len(additional.AdditionalBindings) > 0 {
+				return fmt.Errorf("additional_binding in additional_binding not allowed: %s.%s", svc.GetName(), meth.GetName())
+			}
+			b, err := newBinding(additional, len(meth.Bindings))
+			if err != nil {
+				return err
+			}
+			meth.Bindings = append(meth.Bindings, b)
+		}
+
+		return nil
+	}
+
+	for _, opts := range optsList {
+		if err := applyOpts(opts); err != nil {
 			return nil, err
 		}
-		meth.Bindings = append(meth.Bindings, b)
 	}
 
 	return meth, nil
@@ -181,9 +214,28 @@ func extractAPIOptions(meth *descriptor.MethodDescriptorProto) (*options.HttpRul
 	return opts, nil
 }
 
+func defaultAPIOptions(svc *Service, md *descriptor.MethodDescriptorProto) (*options.HttpRule, error) {
+	// FQSN prefixes the service's full name with a '.', e.g.: '.example.ExampleService'
+	fqsn := strings.TrimPrefix(svc.FQSN(), ".")
+
+	// This generates an HttpRule that matches the gRPC mapping to HTTP/2 described in
+	// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests
+	// i.e.:
+	//   * method is POST
+	//   * path is "/<service name>/<method name>"
+	//   * body should contain the serialized request message
+	rule := &options.HttpRule{
+		Pattern: &options.HttpRule_Post{
+			Post: fmt.Sprintf("/%s/%s", fqsn, md.GetName()),
+		},
+		Body: "*",
+	}
+	return rule, nil
+}
+
 func (r *Registry) newParam(meth *Method, path string) (Parameter, error) {
 	msg := meth.RequestType
-	fields, err := r.resolveFiledPath(msg, path)
+	fields, err := r.resolveFieldPath(msg, path, true)
 	if err != nil {
 		return Parameter{}, err
 	}
@@ -194,7 +246,12 @@ func (r *Registry) newParam(meth *Method, path string) (Parameter, error) {
 	target := fields[l-1].Target
 	switch target.GetType() {
 	case descriptor.FieldDescriptorProto_TYPE_MESSAGE, descriptor.FieldDescriptorProto_TYPE_GROUP:
-		return Parameter{}, fmt.Errorf("aggregate type %s in parameter of %s.%s: %s", target.Type, meth.Service.GetName(), meth.GetName(), path)
+		glog.V(2).Infoln("found aggregate type:", target, target.TypeName)
+		if IsWellKnownType(*target.TypeName) {
+			glog.V(2).Infoln("found well known aggregate type:", target)
+		} else {
+			return Parameter{}, fmt.Errorf("aggregate type %s in parameter of %s.%s: %s", target.Type, meth.Service.GetName(), meth.GetName(), path)
+		}
 	}
 	return Parameter{
 		FieldPath: FieldPath(fields),
@@ -211,7 +268,20 @@ func (r *Registry) newBody(meth *Method, path string) (*Body, error) {
 	case "*":
 		return &Body{FieldPath: nil}, nil
 	}
-	fields, err := r.resolveFiledPath(msg, path)
+	fields, err := r.resolveFieldPath(msg, path, false)
+	if err != nil {
+		return nil, err
+	}
+	return &Body{FieldPath: FieldPath(fields)}, nil
+}
+
+func (r *Registry) newResponse(meth *Method, path string) (*Body, error) {
+	msg := meth.ResponseType
+	switch path {
+	case "", "*":
+		return nil, nil
+	}
+	fields, err := r.resolveFieldPath(msg, path, false)
 	if err != nil {
 		return nil, err
 	}
@@ -230,7 +300,7 @@ func lookupField(msg *Message, name string) *Field {
 }
 
 // resolveFieldPath resolves "path" into a list of fieldDescriptor, starting from "msg".
-func (r *Registry) resolveFiledPath(msg *Message, path string) ([]FieldPathComponent, error) {
+func (r *Registry) resolveFieldPath(msg *Message, path string, isPathParam bool) ([]FieldPathComponent, error) {
 	if path == "" {
 		return nil, nil
 	}
@@ -257,7 +327,7 @@ func (r *Registry) resolveFiledPath(msg *Message, path string) ([]FieldPathCompo
 		if f == nil {
 			return nil, fmt.Errorf("no field %q found in %s", path, root.GetName())
 		}
-		if f.GetLabel() == descriptor.FieldDescriptorProto_LABEL_REPEATED {
+		if !(isPathParam || r.allowRepeatedFieldsInBody) && f.GetLabel() == descriptor.FieldDescriptorProto_LABEL_REPEATED {
 			return nil, fmt.Errorf("repeated field not allowed in field path: %s in %s", f.GetName(), path)
 		}
 		result = append(result, FieldPathComponent{Name: c, Target: f})
diff --git a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/types.go b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/types.go
index 248538e7..3238ec18 100644
--- a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/types.go
+++ b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor/types.go
@@ -4,11 +4,17 @@ import (
 	"fmt"
 	"strings"
 
-	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
-	gogen "github.com/golang/protobuf/protoc-gen-go/generator"
+	"github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"github.com/grpc-ecosystem/grpc-gateway/internal/casing"
 	"github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/httprule"
 )
 
+// IsWellKnownType returns true if the provided fully qualified type name is considered 'well-known'.
+func IsWellKnownType(typeName string) bool {
+	_, ok := wellKnownTypeConv[typeName]
+	return ok
+}
+
 // GoPackage represents a golang package
 type GoPackage struct {
 	// Path is the package path to the package.
@@ -115,6 +121,25 @@ func (e *Enum) FQEN() string {
 	return strings.Join(components, ".")
 }
 
+// GoType returns a go type name for the enum type.
+// It prefixes the type name with the package alias if
+// its belonging package is not "currentPackage".
+func (e *Enum) GoType(currentPackage string) string {
+	var components []string
+	components = append(components, e.Outers...)
+	components = append(components, e.GetName())
+
+	name := strings.Join(components, "_")
+	if e.File.GoPkg.Path == currentPackage {
+		return name
+	}
+	pkg := e.File.GoPkg.Name
+	if alias := e.File.GoPkg.Alias; alias != "" {
+		pkg = alias
+	}
+	return fmt.Sprintf("%s.%s", pkg, name)
+}
+
 // Service wraps descriptor.ServiceDescriptorProto for richer features.
 type Service struct {
 	// File is the file where this service is defined.
@@ -124,6 +149,16 @@ type Service struct {
 	Methods []*Method
 }
 
+// FQSN returns the fully qualified service name of this service.
+func (s *Service) FQSN() string {
+	components := []string{""}
+	if s.File.Package != nil {
+		components = append(components, s.File.GetPackage())
+	}
+	components = append(components, s.GetName())
+	return strings.Join(components, ".")
+}
+
 // Method wraps descriptor.MethodDescriptorProto for richer features.
 type Method struct {
 	// Service is the service which this method belongs to.
@@ -137,6 +172,14 @@ type Method struct {
 	Bindings     []*Binding
 }
 
+// FQMN returns a fully qualified rpc method name of this method.
+func (m *Method) FQMN() string {
+	components := []string{}
+	components = append(components, m.Service.FQSN())
+	components = append(components, m.GetName())
+	return strings.Join(components, ".")
+}
+
 // Binding describes how an HTTP endpoint is bound to a gRPC method.
 type Binding struct {
 	// Method is the method which the endpoint is bound to.
@@ -151,6 +194,8 @@ type Binding struct {
 	PathParams []Parameter
 	// Body describes parameters provided in HTTP request body.
 	Body *Body
+	// ResponseBody describes field in response struct to marshal in HTTP response body.
+	ResponseBody *Body
 }
 
 // ExplicitParams returns a list of explicitly bound parameters of "b",
@@ -189,28 +234,51 @@ type Parameter struct {
 // The converter function converts a string into a value for the parameter.
 func (p Parameter) ConvertFuncExpr() (string, error) {
 	tbl := proto3ConvertFuncs
-	if p.Target.Message.File.proto2() {
+	if !p.IsProto2() && p.IsRepeated() {
+		tbl = proto3RepeatedConvertFuncs
+	} else if p.IsProto2() && !p.IsRepeated() {
 		tbl = proto2ConvertFuncs
+	} else if p.IsProto2() && p.IsRepeated() {
+		tbl = proto2RepeatedConvertFuncs
 	}
 	typ := p.Target.GetType()
 	conv, ok := tbl[typ]
+	if !ok {
+		conv, ok = wellKnownTypeConv[p.Target.GetTypeName()]
+	}
 	if !ok {
 		return "", fmt.Errorf("unsupported field type %s of parameter %s in %s.%s", typ, p.FieldPath, p.Method.Service.GetName(), p.Method.GetName())
 	}
 	return conv, nil
 }
 
-// Body describes a http requtest body to be sent to the method.
+// IsEnum returns true if the field is an enum type, otherwise false is returned.
+func (p Parameter) IsEnum() bool {
+	return p.Target.GetType() == descriptor.FieldDescriptorProto_TYPE_ENUM
+}
+
+// IsRepeated returns true if the field is repeated, otherwise false is returned.
+func (p Parameter) IsRepeated() bool {
+	return p.Target.GetLabel() == descriptor.FieldDescriptorProto_LABEL_REPEATED
+}
+
+// IsProto2 returns true if the field is proto2, otherwise false is returned.
+func (p Parameter) IsProto2() bool {
+	return p.Target.Message.File.proto2()
+}
+
+// Body describes a http (request|response) body to be sent to the (method|client).
+// This is used in body and response_body options in google.api.HttpRule
 type Body struct {
-	// FieldPath is a path to a proto field which the request body is mapped to.
-	// The request body is mapped to the request type itself if FieldPath is empty.
+	// FieldPath is a path to a proto field which the (request|response) body is mapped to.
+	// The (request|response) body is mapped to the (request|response) type itself if FieldPath is empty.
 	FieldPath FieldPath
 }
 
-// RHS returns a right-hand-side expression in go to be used to initialize method request object.
+// AssignableExpr returns an assignable expression in Go to be used to initialize method request object.
 // It starts with "msgExpr", which is the go expression of the method request object.
-func (b Body) RHS(msgExpr string) string {
-	return b.FieldPath.RHS(msgExpr)
+func (b Body) AssignableExpr(msgExpr string) string {
+	return b.FieldPath.AssignableExpr(msgExpr)
 }
 
 // FieldPath is a path to a field from a request message.
@@ -233,22 +301,44 @@ func (p FieldPath) IsNestedProto3() bool {
 	return false
 }
 
-// RHS is a right-hand-side expression in go to be used to assign a value to the target field.
+// AssignableExpr is an assignable expression in Go to be used to assign a value to the target field.
 // It starts with "msgExpr", which is the go expression of the method request object.
-func (p FieldPath) RHS(msgExpr string) string {
+func (p FieldPath) AssignableExpr(msgExpr string) string {
 	l := len(p)
 	if l == 0 {
 		return msgExpr
 	}
-	components := []string{msgExpr}
+
+	var preparations []string
+	components := msgExpr
 	for i, c := range p {
+		// Check if it is a oneOf field.
+		if c.Target.OneofIndex != nil {
+			index := c.Target.OneofIndex
+			msg := c.Target.Message
+			oneOfName := casing.Camel(msg.GetOneofDecl()[*index].GetName())
+			oneofFieldName := msg.GetName() + "_" + c.AssignableExpr()
+
+			components = components + "." + oneOfName
+			s := `if %s == nil {
+				%s =&%s{}
+			} else if _, ok := %s.(*%s); !ok {
+				return nil, metadata, status.Errorf(codes.InvalidArgument, "expect type: *%s, but: %%t\n",%s)
+			}`
+
+			preparations = append(preparations, fmt.Sprintf(s, components, components, oneofFieldName, components, oneofFieldName, oneofFieldName, components))
+			components = components + ".(*" + oneofFieldName + ")"
+		}
+
 		if i == l-1 {
-			components = append(components, c.RHS())
+			components = components + "." + c.AssignableExpr()
 			continue
 		}
-		components = append(components, c.LHS())
+		components = components + "." + c.ValueExpr()
 	}
-	return strings.Join(components, ".")
+
+	preparations = append(preparations, components)
+	return strings.Join(preparations, "\n")
 }
 
 // FieldPathComponent is a path component in FieldPath
@@ -260,17 +350,17 @@ type FieldPathComponent struct {
 	Target *Field
 }
 
-// RHS returns a right-hand-side expression in go for this field.
-func (c FieldPathComponent) RHS() string {
-	return gogen.CamelCase(c.Name)
+// AssignableExpr returns an assignable expression in go for this field.
+func (c FieldPathComponent) AssignableExpr() string {
+	return casing.Camel(c.Name)
 }
 
-// LHS returns a left-hand-side expression in go for this field.
-func (c FieldPathComponent) LHS() string {
+// ValueExpr returns an expression in go for this field.
+func (c FieldPathComponent) ValueExpr() string {
 	if c.Target.Message.File.proto2() {
-		return fmt.Sprintf("Get%s()", gogen.CamelCase(c.Name))
+		return fmt.Sprintf("Get%s()", casing.Camel(c.Name))
 	}
-	return gogen.CamelCase(c.Name)
+	return casing.Camel(c.Name)
 }
 
 var (
@@ -286,17 +376,36 @@ var (
 		descriptor.FieldDescriptorProto_TYPE_STRING:  "runtime.String",
 		// FieldDescriptorProto_TYPE_GROUP
 		// FieldDescriptorProto_TYPE_MESSAGE
-		// FieldDescriptorProto_TYPE_BYTES
-		// TODO(yugui) Handle bytes
-		descriptor.FieldDescriptorProto_TYPE_UINT32: "runtime.Uint32",
-		// FieldDescriptorProto_TYPE_ENUM
-		// TODO(yugui) Handle Enum
+		descriptor.FieldDescriptorProto_TYPE_BYTES:    "runtime.Bytes",
+		descriptor.FieldDescriptorProto_TYPE_UINT32:   "runtime.Uint32",
+		descriptor.FieldDescriptorProto_TYPE_ENUM:     "runtime.Enum",
 		descriptor.FieldDescriptorProto_TYPE_SFIXED32: "runtime.Int32",
 		descriptor.FieldDescriptorProto_TYPE_SFIXED64: "runtime.Int64",
 		descriptor.FieldDescriptorProto_TYPE_SINT32:   "runtime.Int32",
 		descriptor.FieldDescriptorProto_TYPE_SINT64:   "runtime.Int64",
 	}
 
+	proto3RepeatedConvertFuncs = map[descriptor.FieldDescriptorProto_Type]string{
+		descriptor.FieldDescriptorProto_TYPE_DOUBLE:  "runtime.Float64Slice",
+		descriptor.FieldDescriptorProto_TYPE_FLOAT:   "runtime.Float32Slice",
+		descriptor.FieldDescriptorProto_TYPE_INT64:   "runtime.Int64Slice",
+		descriptor.FieldDescriptorProto_TYPE_UINT64:  "runtime.Uint64Slice",
+		descriptor.FieldDescriptorProto_TYPE_INT32:   "runtime.Int32Slice",
+		descriptor.FieldDescriptorProto_TYPE_FIXED64: "runtime.Uint64Slice",
+		descriptor.FieldDescriptorProto_TYPE_FIXED32: "runtime.Uint32Slice",
+		descriptor.FieldDescriptorProto_TYPE_BOOL:    "runtime.BoolSlice",
+		descriptor.FieldDescriptorProto_TYPE_STRING:  "runtime.StringSlice",
+		// FieldDescriptorProto_TYPE_GROUP
+		// FieldDescriptorProto_TYPE_MESSAGE
+		descriptor.FieldDescriptorProto_TYPE_BYTES:    "runtime.BytesSlice",
+		descriptor.FieldDescriptorProto_TYPE_UINT32:   "runtime.Uint32Slice",
+		descriptor.FieldDescriptorProto_TYPE_ENUM:     "runtime.EnumSlice",
+		descriptor.FieldDescriptorProto_TYPE_SFIXED32: "runtime.Int32Slice",
+		descriptor.FieldDescriptorProto_TYPE_SFIXED64: "runtime.Int64Slice",
+		descriptor.FieldDescriptorProto_TYPE_SINT32:   "runtime.Int32Slice",
+		descriptor.FieldDescriptorProto_TYPE_SINT64:   "runtime.Int64Slice",
+	}
+
 	proto2ConvertFuncs = map[descriptor.FieldDescriptorProto_Type]string{
 		descriptor.FieldDescriptorProto_TYPE_DOUBLE:  "runtime.Float64P",
 		descriptor.FieldDescriptorProto_TYPE_FLOAT:   "runtime.Float32P",
@@ -311,12 +420,47 @@ var (
 		// FieldDescriptorProto_TYPE_MESSAGE
 		// FieldDescriptorProto_TYPE_BYTES
 		// TODO(yugui) Handle bytes
-		descriptor.FieldDescriptorProto_TYPE_UINT32: "runtime.Uint32P",
-		// FieldDescriptorProto_TYPE_ENUM
-		// TODO(yugui) Handle Enum
+		descriptor.FieldDescriptorProto_TYPE_UINT32:   "runtime.Uint32P",
+		descriptor.FieldDescriptorProto_TYPE_ENUM:     "runtime.EnumP",
 		descriptor.FieldDescriptorProto_TYPE_SFIXED32: "runtime.Int32P",
 		descriptor.FieldDescriptorProto_TYPE_SFIXED64: "runtime.Int64P",
 		descriptor.FieldDescriptorProto_TYPE_SINT32:   "runtime.Int32P",
 		descriptor.FieldDescriptorProto_TYPE_SINT64:   "runtime.Int64P",
 	}
+
+	proto2RepeatedConvertFuncs = map[descriptor.FieldDescriptorProto_Type]string{
+		descriptor.FieldDescriptorProto_TYPE_DOUBLE:  "runtime.Float64Slice",
+		descriptor.FieldDescriptorProto_TYPE_FLOAT:   "runtime.Float32Slice",
+		descriptor.FieldDescriptorProto_TYPE_INT64:   "runtime.Int64Slice",
+		descriptor.FieldDescriptorProto_TYPE_UINT64:  "runtime.Uint64Slice",
+		descriptor.FieldDescriptorProto_TYPE_INT32:   "runtime.Int32Slice",
+		descriptor.FieldDescriptorProto_TYPE_FIXED64: "runtime.Uint64Slice",
+		descriptor.FieldDescriptorProto_TYPE_FIXED32: "runtime.Uint32Slice",
+		descriptor.FieldDescriptorProto_TYPE_BOOL:    "runtime.BoolSlice",
+		descriptor.FieldDescriptorProto_TYPE_STRING:  "runtime.StringSlice",
+		// FieldDescriptorProto_TYPE_GROUP
+		// FieldDescriptorProto_TYPE_MESSAGE
+		// FieldDescriptorProto_TYPE_BYTES
+		// TODO(maros7) Handle bytes
+		descriptor.FieldDescriptorProto_TYPE_UINT32:   "runtime.Uint32Slice",
+		descriptor.FieldDescriptorProto_TYPE_ENUM:     "runtime.EnumSlice",
+		descriptor.FieldDescriptorProto_TYPE_SFIXED32: "runtime.Int32Slice",
+		descriptor.FieldDescriptorProto_TYPE_SFIXED64: "runtime.Int64Slice",
+		descriptor.FieldDescriptorProto_TYPE_SINT32:   "runtime.Int32Slice",
+		descriptor.FieldDescriptorProto_TYPE_SINT64:   "runtime.Int64Slice",
+	}
+
+	wellKnownTypeConv = map[string]string{
+		".google.protobuf.Timestamp":   "runtime.Timestamp",
+		".google.protobuf.Duration":    "runtime.Duration",
+		".google.protobuf.StringValue": "runtime.StringValue",
+		".google.protobuf.FloatValue":  "runtime.FloatValue",
+		".google.protobuf.DoubleValue": "runtime.DoubleValue",
+		".google.protobuf.BoolValue":   "runtime.BoolValue",
+		".google.protobuf.BytesValue":  "runtime.BytesValue",
+		".google.protobuf.Int32Value":  "runtime.Int32Value",
+		".google.protobuf.UInt32Value": "runtime.UInt32Value",
+		".google.protobuf.Int64Value":  "runtime.Int64Value",
+		".google.protobuf.UInt64Value": "runtime.UInt64Value",
+	}
 )
diff --git a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/httprule/parse.go b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/httprule/parse.go
index 3be74268..f933cd85 100644
--- a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/httprule/parse.go
+++ b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/httprule/parse.go
@@ -232,7 +232,7 @@ func (p *parser) accept(term termType) (string, error) {
 	t := p.tokens[0]
 	switch term {
 	case "/", "*", "**", ".", "=", "{", "}":
-		if t != string(term) {
+		if t != string(term) && t != "/" {
 			return "", fmt.Errorf("expected %q but got %q", term, t)
 		}
 	case typeEOF:
diff --git a/vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/pattern.go b/vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/pattern.go
index 28ad9461..dfe7de48 100644
--- a/vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/pattern.go
+++ b/vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/pattern.go
@@ -17,6 +17,6 @@ const (
 	OpConcatN
 	// OpCapture pops an item and binds it to the variable
 	OpCapture
-	// OpEnd is the least postive invalid opcode.
+	// OpEnd is the least positive invalid opcode.
 	OpEnd
 )
diff --git a/vendor/github.com/huandu/xstrings/README.md b/vendor/github.com/huandu/xstrings/README.md
index 7f68f494..e809c79a 100644
--- a/vendor/github.com/huandu/xstrings/README.md
+++ b/vendor/github.com/huandu/xstrings/README.md
@@ -1,114 +1,118 @@
-# xstrings #
+# xstrings
 
-[![Build Status](https://travis-ci.org/huandu/xstrings.png?branch=master)](https://travis-ci.org/huandu/xstrings)
-[![GoDoc](https://godoc.org/github.com/huandu/xstrings?status.svg)](https://godoc.org/github.com/huandu/xstrings)
+[![Build Status](https://github.com/huandu/xstrings/workflows/Go/badge.svg)](https://github.com/huandu/xstrings/actions)
+[![Go Doc](https://godoc.org/github.com/huandu/xstrings?status.svg)](https://pkg.go.dev/github.com/huandu/xstrings)
+[![Go Report](https://goreportcard.com/badge/github.com/huandu/xstrings)](https://goreportcard.com/report/github.com/huandu/xstrings)
+[![Coverage Status](https://coveralls.io/repos/github/huandu/xstrings/badge.svg?branch=master)](https://coveralls.io/github/huandu/xstrings?branch=master)
 
 Go package [xstrings](https://godoc.org/github.com/huandu/xstrings) is a collection of string functions, which are widely used in other languages but absent in Go package [strings](http://golang.org/pkg/strings).
 
 All functions are well tested and carefully tuned for performance.
 
-## Propose a new function ##
+## Propose a new function
 
 Please review [contributing guideline](CONTRIBUTING.md) and [create new issue](https://github.com/huandu/xstrings/issues) to state why it should be included.
 
-## Install ##
+## Install
 
 Use `go get` to install this library.
 
-	go get github.com/huandu/xstrings
+    go get github.com/huandu/xstrings
 
-## API document ##
+## API document
 
 See [GoDoc](https://godoc.org/github.com/huandu/xstrings) for full document.
 
-## Function list ##
+## Function list
 
 Go functions have a unique naming style. One, who has experience in other language but new in Go, may have difficulties to find out right string function to use.
 
 Here is a list of functions in [strings](http://golang.org/pkg/strings) and [xstrings](https://godoc.org/github.com/huandu/xstrings) with enough extra information about how to map these functions to their friends in other languages. Hope this list could be helpful for fresh gophers.
 
-### Package `xstrings` functions ###
-
-*Keep this table sorted by Function in ascending order.*
-
-| Function | Friends | # |
-| -------- | ------- | --- |
-| [Center](https://godoc.org/github.com/huandu/xstrings#Center) | `str.center` in Python; `String#center` in Ruby | [#30](https://github.com/huandu/xstrings/issues/30) |
-| [Count](https://godoc.org/github.com/huandu/xstrings#Count) | `String#count` in Ruby | [#16](https://github.com/huandu/xstrings/issues/16) |
-| [Delete](https://godoc.org/github.com/huandu/xstrings#Delete) | `String#delete` in Ruby | [#17](https://github.com/huandu/xstrings/issues/17) |
-| [ExpandTabs](https://godoc.org/github.com/huandu/xstrings#ExpandTabs) | `str.expandtabs` in Python | [#27](https://github.com/huandu/xstrings/issues/27) |
-| [FirstRuneToLower](https://godoc.org/github.com/huandu/xstrings#FirstRuneToLower) | `lcfirst` in PHP or Perl | [#15](https://github.com/huandu/xstrings/issues/15) |
-| [FirstRuneToUpper](https://godoc.org/github.com/huandu/xstrings#FirstRuneToUpper) | `String#capitalize` in Ruby; `ucfirst` in PHP or Perl | [#15](https://github.com/huandu/xstrings/issues/15) |
-| [Insert](https://godoc.org/github.com/huandu/xstrings#Insert) | `String#insert` in Ruby | [#18](https://github.com/huandu/xstrings/issues/18) |
-| [LastPartition](https://godoc.org/github.com/huandu/xstrings#LastPartition) | `str.rpartition` in Python; `String#rpartition` in Ruby | [#19](https://github.com/huandu/xstrings/issues/19) |
-| [LeftJustify](https://godoc.org/github.com/huandu/xstrings#LeftJustify) | `str.ljust` in Python; `String#ljust` in Ruby | [#28](https://github.com/huandu/xstrings/issues/28) |
-| [Len](https://godoc.org/github.com/huandu/xstrings#Len) | `mb_strlen` in PHP | [#23](https://github.com/huandu/xstrings/issues/23) |
-| [Partition](https://godoc.org/github.com/huandu/xstrings#Partition) | `str.partition` in Python; `String#partition` in Ruby | [#10](https://github.com/huandu/xstrings/issues/10) |
-| [Reverse](https://godoc.org/github.com/huandu/xstrings#Reverse) | `String#reverse` in Ruby; `strrev` in PHP; `reverse` in Perl | [#7](https://github.com/huandu/xstrings/issues/7) |
-| [RightJustify](https://godoc.org/github.com/huandu/xstrings#RightJustify) | `str.rjust` in Python; `String#rjust` in Ruby | [#29](https://github.com/huandu/xstrings/issues/29) |
-| [RuneWidth](https://godoc.org/github.com/huandu/xstrings#RuneWidth) | - | [#27](https://github.com/huandu/xstrings/issues/27) |
-| [Scrub](https://godoc.org/github.com/huandu/xstrings#Scrub) | `String#scrub` in Ruby | [#20](https://github.com/huandu/xstrings/issues/20) |
-| [Shuffle](https://godoc.org/github.com/huandu/xstrings#Shuffle) | `str_shuffle` in PHP | [#13](https://github.com/huandu/xstrings/issues/13) |
-| [ShuffleSource](https://godoc.org/github.com/huandu/xstrings#ShuffleSource) | `str_shuffle` in PHP | [#13](https://github.com/huandu/xstrings/issues/13) |
-| [Slice](https://godoc.org/github.com/huandu/xstrings#Slice) | `mb_substr` in PHP | [#9](https://github.com/huandu/xstrings/issues/9) |
-| [Squeeze](https://godoc.org/github.com/huandu/xstrings#Squeeze) | `String#squeeze` in Ruby | [#11](https://github.com/huandu/xstrings/issues/11) |
-| [Successor](https://godoc.org/github.com/huandu/xstrings#Successor) | `String#succ` or `String#next` in Ruby | [#22](https://github.com/huandu/xstrings/issues/22) |
-| [SwapCase](https://godoc.org/github.com/huandu/xstrings#SwapCase) | `str.swapcase` in Python; `String#swapcase` in Ruby | [#12](https://github.com/huandu/xstrings/issues/12) |
-| [ToCamelCase](https://godoc.org/github.com/huandu/xstrings#ToCamelCase) | `String#camelize` in RoR | [#1](https://github.com/huandu/xstrings/issues/1) |
-| [ToSnakeCase](https://godoc.org/github.com/huandu/xstrings#ToSnakeCase) | `String#underscore` in RoR | [#1](https://github.com/huandu/xstrings/issues/1) |
-| [Translate](https://godoc.org/github.com/huandu/xstrings#Translate) | `str.translate` in Python; `String#tr` in Ruby; `strtr` in PHP; `tr///` in Perl | [#21](https://github.com/huandu/xstrings/issues/21) |
-| [Width](https://godoc.org/github.com/huandu/xstrings#Width) | `mb_strwidth` in PHP | [#26](https://github.com/huandu/xstrings/issues/26) |
-| [WordCount](https://godoc.org/github.com/huandu/xstrings#WordCount) | `str_word_count` in PHP | [#14](https://github.com/huandu/xstrings/issues/14) |
-| [WordSplit](https://godoc.org/github.com/huandu/xstrings#WordSplit) | - | [#14](https://github.com/huandu/xstrings/issues/14) |
-
-### Package `strings` functions ###
-
-*Keep this table sorted by Function in ascending order.*
-
-| Function | Friends |
-| -------- | ------- |
-| [Contains](http://golang.org/pkg/strings/#Contains) | `String#include?` in Ruby |
-| [ContainsAny](http://golang.org/pkg/strings/#ContainsAny) | - |
-| [ContainsRune](http://golang.org/pkg/strings/#ContainsRune) | - |
-| [Count](http://golang.org/pkg/strings/#Count) | `str.count` in Python; `substr_count` in PHP |
-| [EqualFold](http://golang.org/pkg/strings/#EqualFold) | `stricmp` in PHP; `String#casecmp` in Ruby |
-| [Fields](http://golang.org/pkg/strings/#Fields) | `str.split` in Python; `split` in Perl; `String#split` in Ruby |
-| [FieldsFunc](http://golang.org/pkg/strings/#FieldsFunc) | - |
-| [HasPrefix](http://golang.org/pkg/strings/#HasPrefix) | `str.startswith` in Python; `String#start_with?` in Ruby |
-| [HasSuffix](http://golang.org/pkg/strings/#HasSuffix) | `str.endswith` in Python; `String#end_with?` in Ruby |
-| [Index](http://golang.org/pkg/strings/#Index) | `str.index` in Python; `String#index` in Ruby; `strpos` in PHP; `index` in Perl |
-| [IndexAny](http://golang.org/pkg/strings/#IndexAny) | - |
-| [IndexByte](http://golang.org/pkg/strings/#IndexByte) | - |
-| [IndexFunc](http://golang.org/pkg/strings/#IndexFunc) | - |
-| [IndexRune](http://golang.org/pkg/strings/#IndexRune) | - |
-| [Join](http://golang.org/pkg/strings/#Join) | `str.join` in Python; `Array#join` in Ruby; `implode` in PHP; `join` in Perl |
-| [LastIndex](http://golang.org/pkg/strings/#LastIndex) | `str.rindex` in Python; `String#rindex`; `strrpos` in PHP; `rindex` in Perl |
-| [LastIndexAny](http://golang.org/pkg/strings/#LastIndexAny) | - |
-| [LastIndexFunc](http://golang.org/pkg/strings/#LastIndexFunc) | - |
-| [Map](http://golang.org/pkg/strings/#Map) | `String#each_codepoint` in Ruby |
-| [Repeat](http://golang.org/pkg/strings/#Repeat) | operator `*` in Python and Ruby; `str_repeat` in PHP |
-| [Replace](http://golang.org/pkg/strings/#Replace) | `str.replace` in Python; `String#sub` in Ruby; `str_replace` in PHP |
-| [Split](http://golang.org/pkg/strings/#Split) | `str.split` in Python; `String#split` in Ruby; `explode` in PHP; `split` in Perl |
-| [SplitAfter](http://golang.org/pkg/strings/#SplitAfter) | - |
-| [SplitAfterN](http://golang.org/pkg/strings/#SplitAfterN) | - |
-| [SplitN](http://golang.org/pkg/strings/#SplitN) | `str.split` in Python; `String#split` in Ruby; `explode` in PHP; `split` in Perl |
-| [Title](http://golang.org/pkg/strings/#Title) | `str.title` in Python |
-| [ToLower](http://golang.org/pkg/strings/#ToLower) | `str.lower` in Python; `String#downcase` in Ruby; `strtolower` in PHP; `lc` in Perl |
-| [ToLowerSpecial](http://golang.org/pkg/strings/#ToLowerSpecial) | - |
-| [ToTitle](http://golang.org/pkg/strings/#ToTitle) | - |
-| [ToTitleSpecial](http://golang.org/pkg/strings/#ToTitleSpecial) | - |
-| [ToUpper](http://golang.org/pkg/strings/#ToUpper) | `str.upper` in Python; `String#upcase` in Ruby; `strtoupper` in PHP; `uc` in Perl |
-| [ToUpperSpecial](http://golang.org/pkg/strings/#ToUpperSpecial) | - |
-| [Trim](http://golang.org/pkg/strings/#Trim) | `str.strip` in Python; `String#strip` in Ruby; `trim` in PHP |
-| [TrimFunc](http://golang.org/pkg/strings/#TrimFunc) | - |
-| [TrimLeft](http://golang.org/pkg/strings/#TrimLeft) | `str.lstrip` in Python; `String#lstrip` in Ruby; `ltrim` in PHP |
-| [TrimLeftFunc](http://golang.org/pkg/strings/#TrimLeftFunc) | - |
-| [TrimPrefix](http://golang.org/pkg/strings/#TrimPrefix) | - |
-| [TrimRight](http://golang.org/pkg/strings/#TrimRight) | `str.rstrip` in Python; `String#rstrip` in Ruby; `rtrim` in PHP |
-| [TrimRightFunc](http://golang.org/pkg/strings/#TrimRightFunc) | - |
-| [TrimSpace](http://golang.org/pkg/strings/#TrimSpace) | `str.strip` in Python; `String#strip` in Ruby; `trim` in PHP |
-| [TrimSuffix](http://golang.org/pkg/strings/#TrimSuffix) | `String#chomp` in Ruby; `chomp` in Perl |
-
-## License ##
+### Package `xstrings` functions
+
+_Keep this table sorted by Function in ascending order._
+
+| Function                                                                          | Friends                                                                         | #                                                   |
+| --------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- | --------------------------------------------------- |
+| [Center](https://godoc.org/github.com/huandu/xstrings#Center)                     | `str.center` in Python; `String#center` in Ruby                                 | [#30](https://github.com/huandu/xstrings/issues/30) |
+| [Count](https://godoc.org/github.com/huandu/xstrings#Count)                       | `String#count` in Ruby                                                          | [#16](https://github.com/huandu/xstrings/issues/16) |
+| [Delete](https://godoc.org/github.com/huandu/xstrings#Delete)                     | `String#delete` in Ruby                                                         | [#17](https://github.com/huandu/xstrings/issues/17) |
+| [ExpandTabs](https://godoc.org/github.com/huandu/xstrings#ExpandTabs)             | `str.expandtabs` in Python                                                      | [#27](https://github.com/huandu/xstrings/issues/27) |
+| [FirstRuneToLower](https://godoc.org/github.com/huandu/xstrings#FirstRuneToLower) | `lcfirst` in PHP or Perl                                                         | [#15](https://github.com/huandu/xstrings/issues/15) |
+| [FirstRuneToUpper](https://godoc.org/github.com/huandu/xstrings#FirstRuneToUpper) | `String#capitalize` in Ruby; `ucfirst` in PHP or Perl                            | [#15](https://github.com/huandu/xstrings/issues/15) |
+| [Insert](https://godoc.org/github.com/huandu/xstrings#Insert)                     | `String#insert` in Ruby                                                         | [#18](https://github.com/huandu/xstrings/issues/18) |
+| [LastPartition](https://godoc.org/github.com/huandu/xstrings#LastPartition)       | `str.rpartition` in Python; `String#rpartition` in Ruby                         | [#19](https://github.com/huandu/xstrings/issues/19) |
+| [LeftJustify](https://godoc.org/github.com/huandu/xstrings#LeftJustify)           | `str.ljust` in Python; `String#ljust` in Ruby                                   | [#28](https://github.com/huandu/xstrings/issues/28) |
+| [Len](https://godoc.org/github.com/huandu/xstrings#Len)                           | `mb_strlen` in PHP                                                              | [#23](https://github.com/huandu/xstrings/issues/23) |
+| [Partition](https://godoc.org/github.com/huandu/xstrings#Partition)               | `str.partition` in Python; `String#partition` in Ruby                           | [#10](https://github.com/huandu/xstrings/issues/10) |
+| [Reverse](https://godoc.org/github.com/huandu/xstrings#Reverse)                   | `String#reverse` in Ruby; `strrev` in PHP; `reverse` in Perl                    | [#7](https://github.com/huandu/xstrings/issues/7)   |
+| [RightJustify](https://godoc.org/github.com/huandu/xstrings#RightJustify)         | `str.rjust` in Python; `String#rjust` in Ruby                                   | [#29](https://github.com/huandu/xstrings/issues/29) |
+| [RuneWidth](https://godoc.org/github.com/huandu/xstrings#RuneWidth)               | -                                                                               | [#27](https://github.com/huandu/xstrings/issues/27) |
+| [Scrub](https://godoc.org/github.com/huandu/xstrings#Scrub)                       | `String#scrub` in Ruby                                                          | [#20](https://github.com/huandu/xstrings/issues/20) |
+| [Shuffle](https://godoc.org/github.com/huandu/xstrings#Shuffle)                     | `str_shuffle` in PHP                                                             | [#13](https://github.com/huandu/xstrings/issues/13) |
+| [ShuffleSource](https://godoc.org/github.com/huandu/xstrings#ShuffleSource)         | `str_shuffle` in PHP                                                             | [#13](https://github.com/huandu/xstrings/issues/13) |
+| [Slice](https://godoc.org/github.com/huandu/xstrings#Slice)                       | `mb_substr` in PHP                                                              | [#9](https://github.com/huandu/xstrings/issues/9)   |
+| [Squeeze](https://godoc.org/github.com/huandu/xstrings#Squeeze)                   | `String#squeeze` in Ruby                                                        | [#11](https://github.com/huandu/xstrings/issues/11) |
+| [Successor](https://godoc.org/github.com/huandu/xstrings#Successor)               | `String#succ` or `String#next` in Ruby                                          | [#22](https://github.com/huandu/xstrings/issues/22) |
+| [SwapCase](https://godoc.org/github.com/huandu/xstrings#SwapCase)                 | `str.swapcase` in Python; `String#swapcase` in Ruby                             | [#12](https://github.com/huandu/xstrings/issues/12) |
+| [ToCamelCase](https://godoc.org/github.com/huandu/xstrings#ToCamelCase)           | `String#camelize` in RoR                                                        | [#1](https://github.com/huandu/xstrings/issues/1)   |
+| [ToKebab](https://godoc.org/github.com/huandu/xstrings#ToKebabCase)               | -                                                                               | [#41](https://github.com/huandu/xstrings/issues/41) |
+| [ToPascalCase](https://godoc.org/github.com/huandu/xstrings#ToPascalCase)         | -                                                                               | [#1](https://github.com/huandu/xstrings/issues/1)   |
+| [ToSnakeCase](https://godoc.org/github.com/huandu/xstrings#ToSnakeCase)           | `String#underscore` in RoR                                                      | [#1](https://github.com/huandu/xstrings/issues/1)   |
+| [Translate](https://godoc.org/github.com/huandu/xstrings#Translate)               | `str.translate` in Python; `String#tr` in Ruby; `strtr` in PHP; `tr///` in Perl | [#21](https://github.com/huandu/xstrings/issues/21) |
+| [Width](https://godoc.org/github.com/huandu/xstrings#Width)                       | `mb_strwidth` in PHP                                                            | [#26](https://github.com/huandu/xstrings/issues/26) |
+| [WordCount](https://godoc.org/github.com/huandu/xstrings#WordCount)               | `str_word_count` in PHP                                                         | [#14](https://github.com/huandu/xstrings/issues/14) |
+| [WordSplit](https://godoc.org/github.com/huandu/xstrings#WordSplit)               | -                                                                               | [#14](https://github.com/huandu/xstrings/issues/14) |
+
+### Package `strings` functions
+
+_Keep this table sorted by Function in ascending order._
+
+| Function                                                        | Friends                                                                             |
+| --------------------------------------------------------------- | ----------------------------------------------------------------------------------- |
+| [Contains](http://golang.org/pkg/strings/#Contains)             | `String#include?` in Ruby                                                           |
+| [ContainsAny](http://golang.org/pkg/strings/#ContainsAny)       | -                                                                                   |
+| [ContainsRune](http://golang.org/pkg/strings/#ContainsRune)     | -                                                                                   |
+| [Count](http://golang.org/pkg/strings/#Count)                   | `str.count` in Python; `substr_count` in PHP                                        |
+| [EqualFold](http://golang.org/pkg/strings/#EqualFold)           | `stricmp` in PHP; `String#casecmp` in Ruby                                          |
+| [Fields](http://golang.org/pkg/strings/#Fields)                 | `str.split` in Python; `split` in Perl; `String#split` in Ruby                      |
+| [FieldsFunc](http://golang.org/pkg/strings/#FieldsFunc)         | -                                                                                   |
+| [HasPrefix](http://golang.org/pkg/strings/#HasPrefix)           | `str.startswith` in Python; `String#start_with?` in Ruby                            |
+| [HasSuffix](http://golang.org/pkg/strings/#HasSuffix)           | `str.endswith` in Python; `String#end_with?` in Ruby                                |
+| [Index](http://golang.org/pkg/strings/#Index)                   | `str.index` in Python; `String#index` in Ruby; `strpos` in PHP; `index` in Perl     |
+| [IndexAny](http://golang.org/pkg/strings/#IndexAny)             | -                                                                                   |
+| [IndexByte](http://golang.org/pkg/strings/#IndexByte)           | -                                                                                   |
+| [IndexFunc](http://golang.org/pkg/strings/#IndexFunc)           | -                                                                                   |
+| [IndexRune](http://golang.org/pkg/strings/#IndexRune)           | -                                                                                   |
+| [Join](http://golang.org/pkg/strings/#Join)                     | `str.join` in Python; `Array#join` in Ruby; `implode` in PHP; `join` in Perl        |
+| [LastIndex](http://golang.org/pkg/strings/#LastIndex)           | `str.rindex` in Python; `String#rindex`; `strrpos` in PHP; `rindex` in Perl         |
+| [LastIndexAny](http://golang.org/pkg/strings/#LastIndexAny)     | -                                                                                   |
+| [LastIndexFunc](http://golang.org/pkg/strings/#LastIndexFunc)   | -                                                                                   |
+| [Map](http://golang.org/pkg/strings/#Map)                       | `String#each_codepoint` in Ruby                                                     |
+| [Repeat](http://golang.org/pkg/strings/#Repeat)                 | operator `*` in Python and Ruby; `str_repeat` in PHP                                |
+| [Replace](http://golang.org/pkg/strings/#Replace)               | `str.replace` in Python; `String#sub` in Ruby; `str_replace` in PHP                 |
+| [Split](http://golang.org/pkg/strings/#Split)                   | `str.split` in Python; `String#split` in Ruby; `explode` in PHP; `split` in Perl    |
+| [SplitAfter](http://golang.org/pkg/strings/#SplitAfter)         | -                                                                                   |
+| [SplitAfterN](http://golang.org/pkg/strings/#SplitAfterN)       | -                                                                                   |
+| [SplitN](http://golang.org/pkg/strings/#SplitN)                 | `str.split` in Python; `String#split` in Ruby; `explode` in PHP; `split` in Perl    |
+| [Title](http://golang.org/pkg/strings/#Title)                   | `str.title` in Python                                                               |
+| [ToLower](http://golang.org/pkg/strings/#ToLower)               | `str.lower` in Python; `String#downcase` in Ruby; `strtolower` in PHP; `lc` in Perl |
+| [ToLowerSpecial](http://golang.org/pkg/strings/#ToLowerSpecial) | -                                                                                   |
+| [ToTitle](http://golang.org/pkg/strings/#ToTitle)               | -                                                                                   |
+| [ToTitleSpecial](http://golang.org/pkg/strings/#ToTitleSpecial) | -                                                                                   |
+| [ToUpper](http://golang.org/pkg/strings/#ToUpper)               | `str.upper` in Python; `String#upcase` in Ruby; `strtoupper` in PHP; `uc` in Perl   |
+| [ToUpperSpecial](http://golang.org/pkg/strings/#ToUpperSpecial) | -                                                                                   |
+| [Trim](http://golang.org/pkg/strings/#Trim)                     | `str.strip` in Python; `String#strip` in Ruby; `trim` in PHP                        |
+| [TrimFunc](http://golang.org/pkg/strings/#TrimFunc)             | -                                                                                   |
+| [TrimLeft](http://golang.org/pkg/strings/#TrimLeft)             | `str.lstrip` in Python; `String#lstrip` in Ruby; `ltrim` in PHP                     |
+| [TrimLeftFunc](http://golang.org/pkg/strings/#TrimLeftFunc)     | -                                                                                   |
+| [TrimPrefix](http://golang.org/pkg/strings/#TrimPrefix)         | -                                                                                   |
+| [TrimRight](http://golang.org/pkg/strings/#TrimRight)           | `str.rstrip` in Python; `String#rstrip` in Ruby; `rtrim` in PHP                     |
+| [TrimRightFunc](http://golang.org/pkg/strings/#TrimRightFunc)   | -                                                                                   |
+| [TrimSpace](http://golang.org/pkg/strings/#TrimSpace)           | `str.strip` in Python; `String#strip` in Ruby; `trim` in PHP                        |
+| [TrimSuffix](http://golang.org/pkg/strings/#TrimSuffix)         | `String#chomp` in Ruby; `chomp` in Perl                                             |
+
+## License
 
 This library is licensed under MIT license. See LICENSE for details.
diff --git a/vendor/github.com/huandu/xstrings/common.go b/vendor/github.com/huandu/xstrings/common.go
index dbfaa2dd..f427cc84 100644
--- a/vendor/github.com/huandu/xstrings/common.go
+++ b/vendor/github.com/huandu/xstrings/common.go
@@ -3,20 +3,16 @@
 
 package xstrings
 
-import (
-	"bytes"
-)
-
-const _BUFFER_INIT_GROW_SIZE_MAX = 2048
+const bufferMaxInitGrowSize = 2048
 
 // Lazy initialize a buffer.
-func allocBuffer(orig, cur string) *bytes.Buffer {
-	output := &bytes.Buffer{}
+func allocBuffer(orig, cur string) *stringBuilder {
+	output := &stringBuilder{}
 	maxSize := len(orig) * 4
 
 	// Avoid to reserve too much memory at once.
-	if maxSize > _BUFFER_INIT_GROW_SIZE_MAX {
-		maxSize = _BUFFER_INIT_GROW_SIZE_MAX
+	if maxSize > bufferMaxInitGrowSize {
+		maxSize = bufferMaxInitGrowSize
 	}
 
 	output.Grow(maxSize)
diff --git a/vendor/github.com/huandu/xstrings/convert.go b/vendor/github.com/huandu/xstrings/convert.go
index 78ca34d4..5d8cfee4 100644
--- a/vendor/github.com/huandu/xstrings/convert.go
+++ b/vendor/github.com/huandu/xstrings/convert.go
@@ -4,36 +4,63 @@
 package xstrings
 
 import (
-	"bytes"
 	"math/rand"
 	"unicode"
 	"unicode/utf8"
 )
 
-// ToCamelCase can convert all lower case characters behind underscores
-// to upper case character.
-// Underscore character will be removed in result except following cases.
-//     * More than 1 underscore.
-//           "a__b" => "A_B"
-//     * At the beginning of string.
-//           "_a" => "_A"
-//     * At the end of string.
-//           "ab_" => "Ab_"
+// ToCamelCase is to convert words separated by space, underscore and hyphen to camel case.
+//
+// Some samples.
+//
+//	"some_words"      => "someWords"
+//	"http_server"     => "httpServer"
+//	"no_https"        => "noHttps"
+//	"_complex__case_" => "_complex_Case_"
+//	"some words"      => "someWords"
+//	"GOLANG_IS_GREAT" => "golangIsGreat"
 func ToCamelCase(str string) string {
+	return toCamelCase(str, false)
+}
+
+// ToPascalCase is to convert words separated by space, underscore and hyphen to pascal case.
+//
+// Some samples.
+//
+//	"some_words"      => "SomeWords"
+//	"http_server"     => "HttpServer"
+//	"no_https"        => "NoHttps"
+//	"_complex__case_" => "_Complex_Case_"
+//	"some words"      => "SomeWords"
+//	"GOLANG_IS_GREAT" => "GolangIsGreat"
+func ToPascalCase(str string) string {
+	return toCamelCase(str, true)
+}
+
+func toCamelCase(str string, isBig bool) string {
 	if len(str) == 0 {
 		return ""
 	}
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
+	var isFirstRuneUpper bool
 	var r0, r1 rune
 	var size int
 
-	// leading '_' will appear in output.
+	// leading connector will appear in output.
 	for len(str) > 0 {
 		r0, size = utf8.DecodeRuneInString(str)
 		str = str[size:]
 
-		if r0 != '_' {
+		if !isConnector(r0) {
+			isFirstRuneUpper = unicode.IsUpper(r0)
+
+			if isBig {
+				r0 = unicode.ToUpper(r0)
+			} else {
+				r0 = unicode.ToLower(r0)
+			}
+
 			break
 		}
 
@@ -41,125 +68,373 @@ func ToCamelCase(str string) string {
 	}
 
 	if len(str) == 0 {
+		// A special case for a string contains only 1 rune.
+		if size != 0 {
+			buf.WriteRune(r0)
+		}
+
 		return buf.String()
 	}
 
-	buf.WriteRune(unicode.ToUpper(r0))
-	r0, size = utf8.DecodeRuneInString(str)
-	str = str[size:]
-
 	for len(str) > 0 {
 		r1 = r0
 		r0, size = utf8.DecodeRuneInString(str)
 		str = str[size:]
 
-		if r1 == '_' && r0 != '_' {
+		if isConnector(r0) && isConnector(r1) {
+			buf.WriteRune(r1)
+			continue
+		}
+
+		if isConnector(r1) {
+			isFirstRuneUpper = unicode.IsUpper(r0)
 			r0 = unicode.ToUpper(r0)
 		} else {
+			if isFirstRuneUpper {
+				if unicode.IsUpper(r0) {
+					r0 = unicode.ToLower(r0)
+				} else {
+					isFirstRuneUpper = false
+				}
+			}
+
 			buf.WriteRune(r1)
 		}
 	}
 
+	if isFirstRuneUpper && !isBig {
+		r0 = unicode.ToLower(r0)
+	}
+
 	buf.WriteRune(r0)
 	return buf.String()
 }
 
 // ToSnakeCase can convert all upper case characters in a string to
-// underscore format.
+// snake case format.
 //
 // Some samples.
-//     "FirstName"  => "first_name"
-//     "HTTPServer" => "http_server"
-//     "NoHTTPS"    => "no_https"
-//     "GO_PATH"    => "go_path"
-//     "GO PATH"    => "go_path"      // space is converted to underscore.
-//     "GO-PATH"    => "go_path"      // hyphen is converted to underscore.
+//
+//	"FirstName"    => "first_name"
+//	"HTTPServer"   => "http_server"
+//	"NoHTTPS"      => "no_https"
+//	"GO_PATH"      => "go_path"
+//	"GO PATH"      => "go_path"  // space is converted to underscore.
+//	"GO-PATH"      => "go_path"  // hyphen is converted to underscore.
+//	"http2xx"      => "http_2xx" // insert an underscore before a number and after an alphabet.
+//	"HTTP20xOK"    => "http_20x_ok"
+//	"Duration2m3s" => "duration_2m3s"
+//	"Bld4Floor3rd" => "bld4_floor_3rd"
 func ToSnakeCase(str string) string {
+	return camelCaseToLowerCase(str, '_')
+}
+
+// ToKebabCase can convert all upper case characters in a string to
+// kebab case format.
+//
+// Some samples.
+//
+//	"FirstName"    => "first-name"
+//	"HTTPServer"   => "http-server"
+//	"NoHTTPS"      => "no-https"
+//	"GO_PATH"      => "go-path"
+//	"GO PATH"      => "go-path"  // space is converted to '-'.
+//	"GO-PATH"      => "go-path"  // hyphen is converted to '-'.
+//	"http2xx"      => "http-2xx" // insert an underscore before a number and after an alphabet.
+//	"HTTP20xOK"    => "http-20x-ok"
+//	"Duration2m3s" => "duration-2m3s"
+//	"Bld4Floor3rd" => "bld4-floor-3rd"
+func ToKebabCase(str string) string {
+	return camelCaseToLowerCase(str, '-')
+}
+
+func camelCaseToLowerCase(str string, connector rune) string {
 	if len(str) == 0 {
 		return ""
 	}
 
-	buf := &bytes.Buffer{}
-	var prev, r0, r1 rune
-	var size int
+	buf := &stringBuilder{}
+	wt, word, remaining := nextWord(str)
 
-	r0 = '_'
+	for len(remaining) > 0 {
+		if wt != connectorWord {
+			toLower(buf, wt, word, connector)
+		}
 
-	for len(str) > 0 {
-		prev = r0
-		r0, size = utf8.DecodeRuneInString(str)
-		str = str[size:]
+		prev := wt
+		last := word
+		wt, word, remaining = nextWord(remaining)
 
-		switch {
-		case r0 == utf8.RuneError:
-			buf.WriteByte(byte(str[0]))
+		switch prev {
+		case numberWord:
+			for wt == alphabetWord || wt == numberWord {
+				toLower(buf, wt, word, connector)
+				wt, word, remaining = nextWord(remaining)
+			}
 
-		case unicode.IsUpper(r0):
-			if prev != '_' {
-				buf.WriteRune('_')
+			if wt != invalidWord && wt != punctWord && wt != connectorWord {
+				buf.WriteRune(connector)
 			}
 
-			buf.WriteRune(unicode.ToLower(r0))
+		case connectorWord:
+			toLower(buf, prev, last, connector)
+
+		case punctWord:
+			// nothing.
+
+		default:
+			if wt != numberWord {
+				if wt != connectorWord && wt != punctWord {
+					buf.WriteRune(connector)
+				}
+
+				break
+			}
 
-			if len(str) == 0 {
+			if len(remaining) == 0 {
 				break
 			}
 
-			r0, size = utf8.DecodeRuneInString(str)
-			str = str[size:]
+			last := word
+			wt, word, remaining = nextWord(remaining)
+
+			// consider number as a part of previous word.
+			// e.g. "Bld4Floor" => "bld4_floor"
+			if wt != alphabetWord {
+				toLower(buf, numberWord, last, connector)
+
+				if wt != connectorWord && wt != punctWord {
+					buf.WriteRune(connector)
+				}
 
-			if !unicode.IsUpper(r0) {
-				buf.WriteRune(r0)
 				break
 			}
 
-			// find next non-upper-case character and insert `_` properly.
-			// it's designed to convert `HTTPServer` to `http_server`.
-			// if there are more than 2 adjacent upper case characters in a word,
-			// treat them as an abbreviation plus a normal word.
-			for len(str) > 0 {
-				r1 = r0
-				r0, size = utf8.DecodeRuneInString(str)
-				str = str[size:]
-
-				if r0 == utf8.RuneError {
-					buf.WriteRune(unicode.ToLower(r1))
-					buf.WriteByte(byte(str[0]))
+			// if there are some lower case letters following a number,
+			// add connector before the number.
+			// e.g. "HTTP2xx" => "http_2xx"
+			buf.WriteRune(connector)
+			toLower(buf, numberWord, last, connector)
+
+			for wt == alphabetWord || wt == numberWord {
+				toLower(buf, wt, word, connector)
+				wt, word, remaining = nextWord(remaining)
+			}
+
+			if wt != invalidWord && wt != connectorWord && wt != punctWord {
+				buf.WriteRune(connector)
+			}
+		}
+	}
+
+	toLower(buf, wt, word, connector)
+	return buf.String()
+}
+
+func isConnector(r rune) bool {
+	return r == '-' || r == '_' || unicode.IsSpace(r)
+}
+
+type wordType int
+
+const (
+	invalidWord wordType = iota
+	numberWord
+	upperCaseWord
+	alphabetWord
+	connectorWord
+	punctWord
+	otherWord
+)
+
+func nextWord(str string) (wt wordType, word, remaining string) {
+	if len(str) == 0 {
+		return
+	}
+
+	var offset int
+	remaining = str
+	r, size := nextValidRune(remaining, utf8.RuneError)
+	offset += size
+
+	if r == utf8.RuneError {
+		wt = invalidWord
+		word = str[:offset]
+		remaining = str[offset:]
+		return
+	}
+
+	switch {
+	case isConnector(r):
+		wt = connectorWord
+		remaining = remaining[size:]
+
+		for len(remaining) > 0 {
+			r, size = nextValidRune(remaining, r)
+
+			if !isConnector(r) {
+				break
+			}
+
+			offset += size
+			remaining = remaining[size:]
+		}
+
+	case unicode.IsPunct(r):
+		wt = punctWord
+		remaining = remaining[size:]
+
+		for len(remaining) > 0 {
+			r, size = nextValidRune(remaining, r)
+
+			if !unicode.IsPunct(r) {
+				break
+			}
+
+			offset += size
+			remaining = remaining[size:]
+		}
+
+	case unicode.IsUpper(r):
+		wt = upperCaseWord
+		remaining = remaining[size:]
+
+		if len(remaining) == 0 {
+			break
+		}
+
+		r, size = nextValidRune(remaining, r)
+
+		switch {
+		case unicode.IsUpper(r):
+			prevSize := size
+			offset += size
+			remaining = remaining[size:]
+
+			for len(remaining) > 0 {
+				r, size = nextValidRune(remaining, r)
+
+				if !unicode.IsUpper(r) {
 					break
 				}
 
-				if !unicode.IsUpper(r0) {
-					if r0 == '_' || r0 == ' ' || r0 == '-' {
-						r0 = '_'
+				prevSize = size
+				offset += size
+				remaining = remaining[size:]
+			}
+
+			// it's a bit complex when dealing with a case like "HTTPStatus".
+			// it's expected to be splitted into "HTTP" and "Status".
+			// Therefore "S" should be in remaining instead of word.
+			if len(remaining) > 0 && isAlphabet(r) {
+				offset -= prevSize
+				remaining = str[offset:]
+			}
 
-						buf.WriteRune(unicode.ToLower(r1))
-					} else {
-						buf.WriteRune('_')
-						buf.WriteRune(unicode.ToLower(r1))
-						buf.WriteRune(r0)
-					}
+		case isAlphabet(r):
+			offset += size
+			remaining = remaining[size:]
 
+			for len(remaining) > 0 {
+				r, size = nextValidRune(remaining, r)
+
+				if !isAlphabet(r) || unicode.IsUpper(r) {
 					break
 				}
 
-				buf.WriteRune(unicode.ToLower(r1))
+				offset += size
+				remaining = remaining[size:]
 			}
+		}
+
+	case isAlphabet(r):
+		wt = alphabetWord
+		remaining = remaining[size:]
+
+		for len(remaining) > 0 {
+			r, size = nextValidRune(remaining, r)
 
-			if len(str) == 0 || r0 == '_' {
-				buf.WriteRune(unicode.ToLower(r0))
+			if !isAlphabet(r) || unicode.IsUpper(r) {
 				break
 			}
 
-		default:
-			if r0 == ' ' || r0 == '-' {
-				r0 = '_'
+			offset += size
+			remaining = remaining[size:]
+		}
+
+	case unicode.IsNumber(r):
+		wt = numberWord
+		remaining = remaining[size:]
+
+		for len(remaining) > 0 {
+			r, size = nextValidRune(remaining, r)
+
+			if !unicode.IsNumber(r) {
+				break
 			}
 
-			buf.WriteRune(r0)
+			offset += size
+			remaining = remaining[size:]
+		}
+
+	default:
+		wt = otherWord
+		remaining = remaining[size:]
+
+		for len(remaining) > 0 {
+			r, size = nextValidRune(remaining, r)
+
+			if size == 0 || isConnector(r) || isAlphabet(r) || unicode.IsNumber(r) || unicode.IsPunct(r) {
+				break
+			}
+
+			offset += size
+			remaining = remaining[size:]
 		}
 	}
 
-	return buf.String()
+	word = str[:offset]
+	return
+}
+
+func nextValidRune(str string, prev rune) (r rune, size int) {
+	var sz int
+
+	for len(str) > 0 {
+		r, sz = utf8.DecodeRuneInString(str)
+		size += sz
+
+		if r != utf8.RuneError {
+			return
+		}
+
+		str = str[sz:]
+	}
+
+	r = prev
+	return
+}
+
+func toLower(buf *stringBuilder, wt wordType, str string, connector rune) {
+	buf.Grow(buf.Len() + len(str))
+
+	if wt != upperCaseWord && wt != connectorWord {
+		buf.WriteString(str)
+		return
+	}
+
+	for len(str) > 0 {
+		r, size := utf8.DecodeRuneInString(str)
+		str = str[size:]
+
+		if isConnector(r) {
+			buf.WriteRune(connector)
+		} else if unicode.IsUpper(r) {
+			buf.WriteRune(unicode.ToLower(r))
+		} else {
+			buf.WriteRune(r)
+		}
+	}
 }
 
 // SwapCase will swap characters case from upper to lower or lower to upper.
@@ -167,7 +442,7 @@ func SwapCase(str string) string {
 	var r rune
 	var size int
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 
 	for len(str) > 0 {
 		r, size = utf8.DecodeRuneInString(str)
@@ -201,7 +476,7 @@ func FirstRuneToUpper(str string) string {
 		return str
 	}
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 	buf.WriteRune(unicode.ToUpper(r))
 	buf.WriteString(str[size:])
 	return buf.String()
@@ -219,7 +494,7 @@ func FirstRuneToLower(str string) string {
 		return str
 	}
 
-	buf := &bytes.Buffer{}
+	buf := &stringBuilder{}
 	buf.WriteRune(unicode.ToLower(r))
 	buf.WriteString(str[size:])
 	return buf.String()
@@ -277,17 +552,18 @@ func ShuffleSource(str string, src rand.Source) string {
 // regardless whether the result is a valid rune or not.
 //
 // Only following characters are alphanumeric.
-//     * a - z
-//     * A - Z
-//     * 0 - 9
+//   - a - z
+//   - A - Z
+//   - 0 - 9
 //
 // Samples (borrowed from ruby's String#succ document):
-//     "abcd"      => "abce"
-//     "THX1138"   => "THX1139"
-//     "<<koala>>" => "<<koalb>>"
-//     "1999zzz"   => "2000aaa"
-//     "ZZZ9999"   => "AAAA0000"
-//     "***"       => "**+"
+//
+//	"abcd"      => "abce"
+//	"THX1138"   => "THX1139"
+//	"<<koala>>" => "<<koalb>>"
+//	"1999zzz"   => "2000aaa"
+//	"ZZZ9999"   => "AAAA0000"
+//	"***"       => "**+"
 func Successor(str string) string {
 	if str == "" {
 		return str
@@ -332,7 +608,7 @@ func Successor(str string) string {
 
 	// Needs to add one character for carry.
 	if i < 0 && carry != ' ' {
-		buf := &bytes.Buffer{}
+		buf := &stringBuilder{}
 		buf.Grow(l + 4) // Reserve enough space for write.
 
 		if lastAlphanumeric != 0 {
diff --git a/vendor/github.com/huandu/xstrings/count.go b/vendor/github.com/huandu/xstrings/count.go
index abf3214b..f96e3870 100644
--- a/vendor/github.com/huandu/xstrings/count.go
+++ b/vendor/github.com/huandu/xstrings/count.go
@@ -8,12 +8,12 @@ import (
 	"unicode/utf8"
 )
 
-// Get str's utf8 rune length.
+// Len returns str's utf8 rune length.
 func Len(str string) int {
 	return utf8.RuneCountInString(str)
 }
 
-// Count number of words in a string.
+// WordCount returns number of words in a string.
 //
 // Word is defined as a locale dependent string containing alphabetic characters,
 // which may also contain but not start with `'` and `-` characters.
diff --git a/vendor/github.com/huandu/xstrings/doc.go b/vendor/github.com/huandu/xstrings/doc.go
index fab0ba32..1a6ef069 100644
--- a/vendor/github.com/huandu/xstrings/doc.go
+++ b/vendor/github.com/huandu/xstrings/doc.go
@@ -1,8 +1,8 @@
 // Copyright 2015 Huan Du. All rights reserved.
 // Licensed under the MIT license that can be found in the LICENSE file.
 
-// Package `xstrings` is to provide string algorithms which are useful but not included in `strings` package.
+// Package xstrings is to provide string algorithms which are useful but not included in `strings` package.
 // See project home page for details. https://github.com/huandu/xstrings
 //
-// Package `xstrings` assumes all strings are encoded in utf8.
+// Package xstrings assumes all strings are encoded in utf8.
 package xstrings
diff --git a/vendor/github.com/huandu/xstrings/format.go b/vendor/github.com/huandu/xstrings/format.go
index 2d02df1c..b32219bb 100644
--- a/vendor/github.com/huandu/xstrings/format.go
+++ b/vendor/github.com/huandu/xstrings/format.go
@@ -4,7 +4,6 @@
 package xstrings
 
 import (
-	"bytes"
 	"unicode/utf8"
 )
 
@@ -18,9 +17,10 @@ import (
 // If tabSize <= 0, ExpandTabs panics with error.
 //
 // Samples:
-//     ExpandTabs("a\tbc\tdef\tghij\tk", 4) => "a   bc  def ghij    k"
-//     ExpandTabs("abcdefg\thij\nk\tl", 4)  => "abcdefg hij\nk   l"
-//     ExpandTabs("z中\t文\tw", 4)           => "z中 文  w"
+//
+//	ExpandTabs("a\tbc\tdef\tghij\tk", 4) => "a   bc  def ghij    k"
+//	ExpandTabs("abcdefg\thij\nk\tl", 4)  => "abcdefg hij\nk   l"
+//	ExpandTabs("z中\t文\tw", 4)           => "z中 文  w"
 func ExpandTabs(str string, tabSize int) string {
 	if tabSize <= 0 {
 		panic("tab size must be positive")
@@ -28,7 +28,7 @@ func ExpandTabs(str string, tabSize int) string {
 
 	var r rune
 	var i, size, column, expand int
-	var output *bytes.Buffer
+	var output *stringBuilder
 
 	orig := str
 
@@ -43,7 +43,7 @@ func ExpandTabs(str string, tabSize int) string {
 			}
 
 			for i = 0; i < expand; i++ {
-				output.WriteByte(byte(' '))
+				output.WriteRune(' ')
 			}
 
 			column += expand
@@ -75,9 +75,10 @@ func ExpandTabs(str string, tabSize int) string {
 // If pad is an empty string, str will be returned.
 //
 // Samples:
-//     LeftJustify("hello", 4, " ")    => "hello"
-//     LeftJustify("hello", 10, " ")   => "hello     "
-//     LeftJustify("hello", 10, "123") => "hello12312"
+//
+//	LeftJustify("hello", 4, " ")    => "hello"
+//	LeftJustify("hello", 10, " ")   => "hello     "
+//	LeftJustify("hello", 10, "123") => "hello12312"
 func LeftJustify(str string, length int, pad string) string {
 	l := Len(str)
 
@@ -88,7 +89,7 @@ func LeftJustify(str string, length int, pad string) string {
 	remains := length - l
 	padLen := Len(pad)
 
-	output := &bytes.Buffer{}
+	output := &stringBuilder{}
 	output.Grow(len(str) + (remains/padLen+1)*len(pad))
 	output.WriteString(str)
 	writePadString(output, pad, padLen, remains)
@@ -101,9 +102,10 @@ func LeftJustify(str string, length int, pad string) string {
 // If pad is an empty string, str will be returned.
 //
 // Samples:
-//     RightJustify("hello", 4, " ")    => "hello"
-//     RightJustify("hello", 10, " ")   => "     hello"
-//     RightJustify("hello", 10, "123") => "12312hello"
+//
+//	RightJustify("hello", 4, " ")    => "hello"
+//	RightJustify("hello", 10, " ")   => "     hello"
+//	RightJustify("hello", 10, "123") => "12312hello"
 func RightJustify(str string, length int, pad string) string {
 	l := Len(str)
 
@@ -114,7 +116,7 @@ func RightJustify(str string, length int, pad string) string {
 	remains := length - l
 	padLen := Len(pad)
 
-	output := &bytes.Buffer{}
+	output := &stringBuilder{}
 	output.Grow(len(str) + (remains/padLen+1)*len(pad))
 	writePadString(output, pad, padLen, remains)
 	output.WriteString(str)
@@ -127,9 +129,10 @@ func RightJustify(str string, length int, pad string) string {
 // If pad is an empty string, str will be returned.
 //
 // Samples:
-//     Center("hello", 4, " ")    => "hello"
-//     Center("hello", 10, " ")   => "  hello   "
-//     Center("hello", 10, "123") => "12hello123"
+//
+//	Center("hello", 4, " ")    => "hello"
+//	Center("hello", 10, " ")   => "  hello   "
+//	Center("hello", 10, "123") => "12hello123"
 func Center(str string, length int, pad string) string {
 	l := Len(str)
 
@@ -140,7 +143,7 @@ func Center(str string, length int, pad string) string {
 	remains := length - l
 	padLen := Len(pad)
 
-	output := &bytes.Buffer{}
+	output := &stringBuilder{}
 	output.Grow(len(str) + (remains/padLen+1)*len(pad))
 	writePadString(output, pad, padLen, remains/2)
 	output.WriteString(str)
@@ -148,7 +151,7 @@ func Center(str string, length int, pad string) string {
 	return output.String()
 }
 
-func writePadString(output *bytes.Buffer, pad string, padLen, remains int) {
+func writePadString(output *stringBuilder, pad string, padLen, remains int) {
 	var r rune
 	var size int
 
diff --git a/vendor/github.com/huandu/xstrings/manipulate.go b/vendor/github.com/huandu/xstrings/manipulate.go
index 4114f96c..ab42fe0f 100644
--- a/vendor/github.com/huandu/xstrings/manipulate.go
+++ b/vendor/github.com/huandu/xstrings/manipulate.go
@@ -4,7 +4,6 @@
 package xstrings
 
 import (
-	"bytes"
 	"strings"
 	"unicode/utf8"
 )
@@ -80,10 +79,12 @@ func Slice(str string, start, end int) string {
 // The return value is a slice of strings with head, match and tail.
 //
 // If str contains sep, for example "hello" and "l", Partition returns
-//     "he", "l", "lo"
+//
+//	"he", "l", "lo"
 //
 // If str doesn't contain sep, for example "hello" and "x", Partition returns
-//     "hello", "", ""
+//
+//	"hello", "", ""
 func Partition(str, sep string) (head, match, tail string) {
 	index := strings.Index(str, sep)
 
@@ -102,10 +103,12 @@ func Partition(str, sep string) (head, match, tail string) {
 // The return value is a slice of strings with head, match and tail.
 //
 // If str contains sep, for example "hello" and "l", LastPartition returns
-//     "hel", "l", "o"
+//
+//	"hel", "l", "o"
 //
 // If str doesn't contain sep, for example "hello" and "x", LastPartition returns
-//     "", "", "hello"
+//
+//	"", "", "hello"
 func LastPartition(str, sep string) (head, match, tail string) {
 	index := strings.LastIndex(str, sep)
 
@@ -128,10 +131,10 @@ func Insert(dst, src string, index int) string {
 	return Slice(dst, 0, index) + src + Slice(dst, index, -1)
 }
 
-// Scrubs invalid utf8 bytes with repl string.
+// Scrub scrubs invalid utf8 bytes with repl string.
 // Adjacent invalid bytes are replaced only once.
 func Scrub(str, repl string) string {
-	var buf *bytes.Buffer
+	var buf *stringBuilder
 	var r rune
 	var size, pos int
 	var hasError bool
@@ -144,7 +147,7 @@ func Scrub(str, repl string) string {
 		if r == utf8.RuneError {
 			if !hasError {
 				if buf == nil {
-					buf = &bytes.Buffer{}
+					buf = &stringBuilder{}
 				}
 
 				buf.WriteString(origin[:pos])
@@ -171,7 +174,7 @@ func Scrub(str, repl string) string {
 	return origin
 }
 
-// Splits a string into words. Returns a slice of words.
+// WordSplit splits a string into words. Returns a slice of words.
 // If there is no word in a string, return nil.
 //
 // Word is defined as a locale dependent string containing alphabetic characters,
diff --git a/vendor/github.com/huandu/xstrings/translate.go b/vendor/github.com/huandu/xstrings/translate.go
index bf6df38c..1fac6a00 100644
--- a/vendor/github.com/huandu/xstrings/translate.go
+++ b/vendor/github.com/huandu/xstrings/translate.go
@@ -4,7 +4,6 @@
 package xstrings
 
 import (
-	"bytes"
 	"unicode"
 	"unicode/utf8"
 )
@@ -26,7 +25,7 @@ type runeMap map[rune]rune
 // If a from/to pattern pair needs to be used more than once, it's recommended
 // to create a Translator and reuse it.
 type Translator struct {
-	quickDict  *runeDict       // A quick dictionary to look up rune by index. Only availabe for latin runes.
+	quickDict  *runeDict       // A quick dictionary to look up rune by index. Only available for latin runes.
 	runeMap    runeMap         // Rune map for translation.
 	ranges     []*runeRangeMap // Ranges of runes.
 	mappedRune rune            // If mappedRune >= 0, all matched runes are translated to the mappedRune.
@@ -152,12 +151,12 @@ func NewTranslator(from, to string) *Translator {
 			continue
 		}
 
-		fromStart, toStart = tr.addRuneRange(fromStart, fromEnd, toStart, toStart, singleRunes)
+		_, toStart = tr.addRuneRange(fromStart, fromEnd, toStart, toStart, singleRunes)
 		fromEnd = utf8.RuneError
 	}
 
 	if fromEnd != utf8.RuneError {
-		singleRunes = tr.addRune(fromEnd, toStart, singleRunes)
+		tr.addRune(fromEnd, toStart, singleRunes)
 	}
 
 	tr.reverted = reverted
@@ -303,7 +302,7 @@ func (tr *Translator) Translate(str string) string {
 
 	orig := str
 
-	var output *bytes.Buffer
+	var output *stringBuilder
 
 	for len(str) > 0 {
 		r, size = utf8.DecodeRuneInString(str)
@@ -417,14 +416,16 @@ func (tr *Translator) HasPattern() bool {
 //
 // From and to are patterns representing a set of characters. Pattern is defined as following.
 //
-//     * Special characters
-//       * '-' means a range of runes, e.g.
-//         * "a-z" means all characters from 'a' to 'z' inclusive;
-//         * "z-a" means all characters from 'z' to 'a' inclusive.
-//       * '^' as first character means a set of all runes excepted listed, e.g.
-//         * "^a-z" means all characters except 'a' to 'z' inclusive.
-//       * '\' escapes special characters.
-//     * Normal character represents itself, e.g. "abc" is a set including 'a', 'b' and 'c'.
+// Special characters:
+//
+//  1. '-' means a range of runes, e.g.
+//     "a-z" means all characters from 'a' to 'z' inclusive;
+//     "z-a" means all characters from 'z' to 'a' inclusive.
+//  2. '^' as first character means a set of all runes excepted listed, e.g.
+//     "^a-z" means all characters except 'a' to 'z' inclusive.
+//  3. '\' escapes special characters.
+//
+// Normal character represents itself, e.g. "abc" is a set including 'a', 'b' and 'c'.
 //
 // Translate will try to find a 1:1 mapping from from to to.
 // If to is smaller than from, last rune in to will be used to map "out of range" characters in from.
@@ -434,12 +435,13 @@ func (tr *Translator) HasPattern() bool {
 // If the to pattern is an empty string, Translate works exactly the same as Delete.
 //
 // Samples:
-//     Translate("hello", "aeiou", "12345")    => "h2ll4"
-//     Translate("hello", "a-z", "A-Z")        => "HELLO"
-//     Translate("hello", "z-a", "a-z")        => "svool"
-//     Translate("hello", "aeiou", "*")        => "h*ll*"
-//     Translate("hello", "^l", "*")           => "**ll*"
-//     Translate("hello ^ world", `\^lo`, "*") => "he*** * w*r*d"
+//
+//	Translate("hello", "aeiou", "12345")    => "h2ll4"
+//	Translate("hello", "a-z", "A-Z")        => "HELLO"
+//	Translate("hello", "z-a", "a-z")        => "svool"
+//	Translate("hello", "aeiou", "*")        => "h*ll*"
+//	Translate("hello", "^l", "*")           => "**ll*"
+//	Translate("hello ^ world", `\^lo`, "*") => "he*** * w*r*d"
 func Translate(str, from, to string) string {
 	tr := NewTranslator(from, to)
 	return tr.Translate(str)
@@ -449,9 +451,10 @@ func Translate(str, from, to string) string {
 // Pattern is defined in Translate function.
 //
 // Samples:
-//     Delete("hello", "aeiou") => "hll"
-//     Delete("hello", "a-k")   => "llo"
-//     Delete("hello", "^a-k")  => "he"
+//
+//	Delete("hello", "aeiou") => "hll"
+//	Delete("hello", "a-k")   => "llo"
+//	Delete("hello", "^a-k")  => "he"
 func Delete(str, pattern string) string {
 	tr := NewTranslator(pattern, "")
 	return tr.Translate(str)
@@ -461,9 +464,10 @@ func Delete(str, pattern string) string {
 // Pattern is defined in Translate function.
 //
 // Samples:
-//     Count("hello", "aeiou") => 3
-//     Count("hello", "a-k")   => 3
-//     Count("hello", "^a-k")  => 2
+//
+//	Count("hello", "aeiou") => 3
+//	Count("hello", "a-k")   => 3
+//	Count("hello", "^a-k")  => 2
 func Count(str, pattern string) int {
 	if pattern == "" || str == "" {
 		return 0
@@ -492,14 +496,16 @@ func Count(str, pattern string) int {
 // If pattern is not empty, only runes matching the pattern will be squeezed.
 //
 // Samples:
-//     Squeeze("hello", "")    => "helo"
-//     Squeeze("hello", "m-z") => "hello"
+//
+//	Squeeze("hello", "")             => "helo"
+//	Squeeze("hello", "m-z")          => "hello"
+//	Squeeze("hello   world", " ")    => "hello world"
 func Squeeze(str, pattern string) string {
 	var last, r rune
 	var size int
 	var skipSqueeze, matched bool
 	var tr *Translator
-	var output *bytes.Buffer
+	var output *stringBuilder
 
 	orig := str
 	last = -1
@@ -532,6 +538,7 @@ func Squeeze(str, pattern string) string {
 			}
 
 			last = r
+			skipSqueeze = false
 		}
 
 		str = str[size:]
diff --git a/vendor/github.com/imdario/mergo/README.md b/vendor/github.com/imdario/mergo/README.md
index b1310697..02fc81e0 100644
--- a/vendor/github.com/imdario/mergo/README.md
+++ b/vendor/github.com/imdario/mergo/README.md
@@ -2,17 +2,18 @@
 
 A helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
 
-Also a lovely [comune](http://en.wikipedia.org/wiki/Mergo) (municipality) in the Province of Ancona in the Italian region Marche.
-
-![Mergo dall'alto](http://www.comune.mergo.an.it/Siti/Mergo/Immagini/Foto/mergo_dall_alto.jpg)
+Also a lovely [comune](http://en.wikipedia.org/wiki/Mergo) (municipality) in the Province of Ancona in the Italian region of Marche.
 
 ## Status
 
-It is ready for production use. It works fine after extensive use in the wild.
+It is ready for production use. [It is used in several projects by Docker, Google, The Linux Foundation, VMWare, Shopify, etc](https://github.com/imdario/mergo#mergo-in-the-wild).
 
-[![Build Status][1]][2]
 [![GoDoc][3]][4]
 [![GoCard][5]][6]
+[![Build Status][1]][2]
+[![Coverage Status][7]][8]
+[![Sourcegraph][9]][10]
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fimdario%2Fmergo.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fimdario%2Fmergo?ref=badge_shield)
 
 [1]: https://travis-ci.org/imdario/mergo.png
 [2]: https://travis-ci.org/imdario/mergo
@@ -20,19 +21,54 @@ It is ready for production use. It works fine after extensive use in the wild.
 [4]: https://godoc.org/github.com/imdario/mergo
 [5]: https://goreportcard.com/badge/imdario/mergo
 [6]: https://goreportcard.com/report/github.com/imdario/mergo
+[7]: https://coveralls.io/repos/github/imdario/mergo/badge.svg?branch=master
+[8]: https://coveralls.io/github/imdario/mergo?branch=master
+[9]: https://sourcegraph.com/github.com/imdario/mergo/-/badge.svg
+[10]: https://sourcegraph.com/github.com/imdario/mergo?badge
+
+### Latest release
+
+[Release v0.3.7](https://github.com/imdario/mergo/releases/tag/v0.3.7).
 
 ### Important note
 
-Mergo is intended to assign **only** zero value fields on destination with source value. Since April 6th it works like this. Before it didn't work properly, causing some random overwrites. After some issues and PRs I found it didn't merge as I designed it. Thanks to [imdario/mergo#8](https://github.com/imdario/mergo/pull/8) overwriting functions were added and the wrong behavior was clearly detected.
+Please keep in mind that in [0.3.2](//github.com/imdario/mergo/releases/tag/0.3.2) Mergo changed `Merge()`and `Map()` signatures to support [transformers](#transformers). An optional/variadic argument has been added, so it won't break existing code.
 
 If you were using Mergo **before** April 6th 2015, please check your project works as intended after updating your local copy with ```go get -u github.com/imdario/mergo```. I apologize for any issue caused by its previous behavior and any future bug that Mergo could cause (I hope it won't!) in existing projects after the change (release 0.2.0).
 
+### Donations
+
+If Mergo is useful to you, consider buying me a coffee, a beer or making a monthly donation so I can keep building great free software. :heart_eyes:
+
+<a href='https://ko-fi.com/B0B58839' target='_blank'><img height='36' style='border:0px;height:36px;' src='https://az743702.vo.msecnd.net/cdn/kofi1.png?v=0' border='0' alt='Buy Me a Coffee at ko-fi.com' /></a>
+[![Beerpay](https://beerpay.io/imdario/mergo/badge.svg)](https://beerpay.io/imdario/mergo)
+[![Beerpay](https://beerpay.io/imdario/mergo/make-wish.svg)](https://beerpay.io/imdario/mergo)
+<a href="https://liberapay.com/dario/donate"><img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg"></a>
+
 ### Mergo in the wild
 
-- [docker/docker](https://github.com/docker/docker/)
+- [moby/moby](https://github.com/moby/moby)
 - [kubernetes/kubernetes](https://github.com/kubernetes/kubernetes)
+- [vmware/dispatch](https://github.com/vmware/dispatch)
+- [Shopify/themekit](https://github.com/Shopify/themekit)
 - [imdario/zas](https://github.com/imdario/zas)
+- [matcornic/hermes](https://github.com/matcornic/hermes)
+- [OpenBazaar/openbazaar-go](https://github.com/OpenBazaar/openbazaar-go)
+- [kataras/iris](https://github.com/kataras/iris)
+- [michaelsauter/crane](https://github.com/michaelsauter/crane)
+- [go-task/task](https://github.com/go-task/task)
+- [sensu/uchiwa](https://github.com/sensu/uchiwa)
+- [ory/hydra](https://github.com/ory/hydra)
+- [sisatech/vcli](https://github.com/sisatech/vcli)
+- [dairycart/dairycart](https://github.com/dairycart/dairycart)
+- [projectcalico/felix](https://github.com/projectcalico/felix)
+- [resin-os/balena](https://github.com/resin-os/balena)
+- [go-kivik/kivik](https://github.com/go-kivik/kivik)
+- [Telefonica/govice](https://github.com/Telefonica/govice)
+- [supergiant/supergiant](supergiant/supergiant)
+- [SergeyTsalkov/brooce](https://github.com/SergeyTsalkov/brooce)
 - [soniah/dnsmadeeasy](https://github.com/soniah/dnsmadeeasy)
+- [ohsu-comp-bio/funnel](https://github.com/ohsu-comp-bio/funnel)
 - [EagerIO/Stout](https://github.com/EagerIO/Stout)
 - [lynndylanhurley/defsynth-api](https://github.com/lynndylanhurley/defsynth-api)
 - [russross/canvasassignments](https://github.com/russross/canvasassignments)
@@ -50,7 +86,7 @@ If you were using Mergo **before** April 6th 2015, please check your project wor
 - [thoas/picfit](https://github.com/thoas/picfit)
 - [mantasmatelis/whooplist-server](https://github.com/mantasmatelis/whooplist-server)
 - [jnuthong/item_search](https://github.com/jnuthong/item_search)
-- [Iris Web Framework](https://github.com/kataras/iris)
+- [bukalapak/snowboard](https://github.com/bukalapak/snowboard)
 
 ## Installation
 
@@ -63,7 +99,7 @@ If you were using Mergo **before** April 6th 2015, please check your project wor
 
 ## Usage
 
-You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. Also maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
+You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. It won't merge empty structs value as [they are not considered zero values](https://golang.org/ref/spec#The_zero_value) either. Also maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
 
 ```go
 if err := mergo.Merge(&dst, src); err != nil {
@@ -71,15 +107,15 @@ if err := mergo.Merge(&dst, src); err != nil {
 }
 ```
 
-Also, you can merge overwriting values using MergeWithOverwrite.
+Also, you can merge overwriting values using the transformer `WithOverride`.
 
 ```go
-if err := mergo.MergeWithOverwrite(&dst, src); err != nil {
+if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil {
     // ...
 }
 ```
 
-Additionally, you can map a map[string]interface{} to a struct (and otherwise, from struct to map), following the same restrictions as in Merge(). Keys are capitalized to find each corresponding exported field.
+Additionally, you can map a `map[string]interface{}` to a struct (and otherwise, from struct to map), following the same restrictions as in `Merge()`. Keys are capitalized to find each corresponding exported field.
 
 ```go
 if err := mergo.Map(&dst, srcMap); err != nil {
@@ -87,7 +123,7 @@ if err := mergo.Map(&dst, srcMap); err != nil {
 }
 ```
 
-Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as map[string]interface{}. They will be just assigned as values.
+Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as `map[string]interface{}`. They will be just assigned as values.
 
 More information and examples in [godoc documentation](http://godoc.org/github.com/imdario/mergo).
 
@@ -111,13 +147,10 @@ func main() {
 		A: "one",
 		B: 2,
 	}
-
 	dest := Foo{
 		A: "two",
 	}
-
 	mergo.Merge(&dest, src)
-
 	fmt.Println(dest)
 	// Will print
 	// {two 2}
@@ -126,7 +159,56 @@ func main() {
 
 Note: if test are failing due missing package, please execute:
 
-    go get gopkg.in/yaml.v1
+    go get gopkg.in/yaml.v2
+
+### Transformers
+
+Transformers allow to merge specific types differently than in the default behavior. In other words, now you can customize how some types are merged. For example, `time.Time` is a struct; it doesn't have zero value but IsZero can return true because it has fields with zero value. How can we merge a non-zero `time.Time`?
+
+```go
+package main
+
+import (
+	"fmt"
+	"github.com/imdario/mergo"
+        "reflect"
+        "time"
+)
+
+type timeTransfomer struct {
+}
+
+func (t timeTransfomer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
+	if typ == reflect.TypeOf(time.Time{}) {
+		return func(dst, src reflect.Value) error {
+			if dst.CanSet() {
+				isZero := dst.MethodByName("IsZero")
+				result := isZero.Call([]reflect.Value{})
+				if result[0].Bool() {
+					dst.Set(src)
+				}
+			}
+			return nil
+		}
+	}
+	return nil
+}
+
+type Snapshot struct {
+	Time time.Time
+	// ...
+}
+
+func main() {
+	src := Snapshot{time.Now()}
+	dest := Snapshot{}
+	mergo.Merge(&dest, src, mergo.WithTransformers(timeTransfomer{}))
+	fmt.Println(dest)
+	// Will print
+	// { 2018-01-12 01:15:00 +0000 UTC m=+0.000000001 }
+}
+```
+
 
 ## Contact me
 
@@ -136,6 +218,21 @@ If I can help you, you have an idea or you are using Mergo in your projects, don
 
 Written by [Dario Castañé](http://dario.im).
 
+## Top Contributors
+
+[![0](https://sourcerer.io/fame/imdario/imdario/mergo/images/0)](https://sourcerer.io/fame/imdario/imdario/mergo/links/0)
+[![1](https://sourcerer.io/fame/imdario/imdario/mergo/images/1)](https://sourcerer.io/fame/imdario/imdario/mergo/links/1)
+[![2](https://sourcerer.io/fame/imdario/imdario/mergo/images/2)](https://sourcerer.io/fame/imdario/imdario/mergo/links/2)
+[![3](https://sourcerer.io/fame/imdario/imdario/mergo/images/3)](https://sourcerer.io/fame/imdario/imdario/mergo/links/3)
+[![4](https://sourcerer.io/fame/imdario/imdario/mergo/images/4)](https://sourcerer.io/fame/imdario/imdario/mergo/links/4)
+[![5](https://sourcerer.io/fame/imdario/imdario/mergo/images/5)](https://sourcerer.io/fame/imdario/imdario/mergo/links/5)
+[![6](https://sourcerer.io/fame/imdario/imdario/mergo/images/6)](https://sourcerer.io/fame/imdario/imdario/mergo/links/6)
+[![7](https://sourcerer.io/fame/imdario/imdario/mergo/images/7)](https://sourcerer.io/fame/imdario/imdario/mergo/links/7)
+
+
 ## License
 
 [BSD 3-Clause](http://opensource.org/licenses/BSD-3-Clause) license, as [Go language](http://golang.org/LICENSE).
+
+
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fimdario%2Fmergo.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fimdario%2Fmergo?ref=badge_large)
diff --git a/vendor/github.com/imdario/mergo/map.go b/vendor/github.com/imdario/mergo/map.go
index 99002565..3f5afa83 100644
--- a/vendor/github.com/imdario/mergo/map.go
+++ b/vendor/github.com/imdario/mergo/map.go
@@ -31,7 +31,8 @@ func isExported(field reflect.StructField) bool {
 // Traverses recursively both values, assigning src's fields values to dst.
 // The map argument tracks comparisons that have already been seen, which allows
 // short circuiting on recursive types.
-func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, overwrite bool) (err error) {
+func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, config *Config) (err error) {
+	overwrite := config.Overwrite
 	if dst.CanAddr() {
 		addr := dst.UnsafeAddr()
 		h := 17 * addr
@@ -71,6 +72,7 @@ func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, over
 	case reflect.Struct:
 		srcMap := src.Interface().(map[string]interface{})
 		for key := range srcMap {
+			config.overwriteWithEmptyValue = true
 			srcValue := srcMap[key]
 			fieldName := changeInitialCase(key, unicode.ToUpper)
 			dstElement := dst.FieldByName(fieldName)
@@ -97,15 +99,15 @@ func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, over
 				continue
 			}
 			if srcKind == dstKind {
-				if err = deepMerge(dstElement, srcElement, visited, depth+1, overwrite); err != nil {
+				if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
 					return
 				}
 			} else if dstKind == reflect.Interface && dstElement.Kind() == reflect.Interface {
-				if err = deepMerge(dstElement, srcElement, visited, depth+1, overwrite); err != nil {
+				if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
 					return
 				}
 			} else if srcKind == reflect.Map {
-				if err = deepMap(dstElement, srcElement, visited, depth+1, overwrite); err != nil {
+				if err = deepMap(dstElement, srcElement, visited, depth+1, config); err != nil {
 					return
 				}
 			} else {
@@ -127,28 +129,35 @@ func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, over
 // doesn't apply if dst is a map.
 // This is separated method from Merge because it is cleaner and it keeps sane
 // semantics: merging equal types, mapping different (restricted) types.
-func Map(dst, src interface{}) error {
-	return _map(dst, src, false)
+func Map(dst, src interface{}, opts ...func(*Config)) error {
+	return _map(dst, src, opts...)
 }
 
-// MapWithOverwrite will do the same as Map except that non-empty dst attributes will be overriden by
+// MapWithOverwrite will do the same as Map except that non-empty dst attributes will be overridden by
 // non-empty src attribute values.
-func MapWithOverwrite(dst, src interface{}) error {
-	return _map(dst, src, true)
+// Deprecated: Use Map(…) with WithOverride
+func MapWithOverwrite(dst, src interface{}, opts ...func(*Config)) error {
+	return _map(dst, src, append(opts, WithOverride)...)
 }
 
-func _map(dst, src interface{}, overwrite bool) error {
+func _map(dst, src interface{}, opts ...func(*Config)) error {
 	var (
 		vDst, vSrc reflect.Value
 		err        error
 	)
+	config := &Config{}
+
+	for _, opt := range opts {
+		opt(config)
+	}
+
 	if vDst, vSrc, err = resolveValues(dst, src); err != nil {
 		return err
 	}
 	// To be friction-less, we redirect equal-type arguments
 	// to deepMerge. Only because arguments can be anything.
 	if vSrc.Kind() == vDst.Kind() {
-		return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, overwrite)
+		return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, config)
 	}
 	switch vSrc.Kind() {
 	case reflect.Struct:
@@ -162,5 +171,5 @@ func _map(dst, src interface{}, overwrite bool) error {
 	default:
 		return ErrNotSupported
 	}
-	return deepMap(vDst, vSrc, make(map[uintptr]*visit), 0, overwrite)
+	return deepMap(vDst, vSrc, make(map[uintptr]*visit), 0, config)
 }
diff --git a/vendor/github.com/imdario/mergo/merge.go b/vendor/github.com/imdario/mergo/merge.go
index 052b9fe7..3fb6c64d 100644
--- a/vendor/github.com/imdario/mergo/merge.go
+++ b/vendor/github.com/imdario/mergo/merge.go
@@ -9,13 +9,14 @@
 package mergo
 
 import (
+	"fmt"
 	"reflect"
 )
 
 func hasExportedField(dst reflect.Value) (exported bool) {
 	for i, n := 0, dst.NumField(); i < n; i++ {
 		field := dst.Type().Field(i)
-		if field.Anonymous {
+		if field.Anonymous && dst.Field(i).Kind() == reflect.Struct {
 			exported = exported || hasExportedField(dst.Field(i))
 		} else {
 			exported = exported || len(field.PkgPath) == 0
@@ -24,10 +25,29 @@ func hasExportedField(dst reflect.Value) (exported bool) {
 	return
 }
 
+type Config struct {
+	Overwrite                    bool
+	AppendSlice                  bool
+	TypeCheck                    bool
+	Transformers                 Transformers
+	overwriteWithEmptyValue      bool
+	overwriteSliceWithEmptyValue bool
+}
+
+type Transformers interface {
+	Transformer(reflect.Type) func(dst, src reflect.Value) error
+}
+
 // Traverses recursively both values, assigning src's fields values to dst.
 // The map argument tracks comparisons that have already been seen, which allows
 // short circuiting on recursive types.
-func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, overwrite bool) (err error) {
+func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, config *Config) (err error) {
+	overwrite := config.Overwrite
+	typeCheck := config.TypeCheck
+	overwriteWithEmptySrc := config.overwriteWithEmptyValue
+	overwriteSliceWithEmptySrc := config.overwriteSliceWithEmptyValue
+	config.overwriteWithEmptyValue = false
+
 	if !src.IsValid() {
 		return
 	}
@@ -44,23 +64,30 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
 		// Remember, remember...
 		visited[h] = &visit{addr, typ, seen}
 	}
+
+	if config.Transformers != nil && !isEmptyValue(dst) {
+		if fn := config.Transformers.Transformer(dst.Type()); fn != nil {
+			err = fn(dst, src)
+			return
+		}
+	}
+
 	switch dst.Kind() {
 	case reflect.Struct:
 		if hasExportedField(dst) {
 			for i, n := 0, dst.NumField(); i < n; i++ {
-				if err = deepMerge(dst.Field(i), src.Field(i), visited, depth+1, overwrite); err != nil {
+				if err = deepMerge(dst.Field(i), src.Field(i), visited, depth+1, config); err != nil {
 					return
 				}
 			}
 		} else {
-			if dst.CanSet() && !isEmptyValue(src) && (overwrite || isEmptyValue(dst)) {
+			if dst.CanSet() && (!isEmptyValue(src) || overwriteWithEmptySrc) && (overwrite || isEmptyValue(dst)) {
 				dst.Set(src)
 			}
 		}
 	case reflect.Map:
-		if len(src.MapKeys()) == 0 && !src.IsNil() && len(dst.MapKeys()) == 0 {
+		if dst.IsNil() && !src.IsNil() {
 			dst.Set(reflect.MakeMap(dst.Type()))
-			return
 		}
 		for _, key := range src.MapKeys() {
 			srcElement := src.MapIndex(key)
@@ -69,7 +96,7 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
 			}
 			dstElement := dst.MapIndex(key)
 			switch srcElement.Kind() {
-			case reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr, reflect.Interface, reflect.Slice:
+			case reflect.Chan, reflect.Func, reflect.Map, reflect.Interface, reflect.Slice:
 				if srcElement.IsNil() {
 					continue
 				}
@@ -84,36 +111,91 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
 				case reflect.Ptr:
 					fallthrough
 				case reflect.Map:
-					if err = deepMerge(dstElement, srcElement, visited, depth+1, overwrite); err != nil {
+					srcMapElm := srcElement
+					dstMapElm := dstElement
+					if srcMapElm.CanInterface() {
+						srcMapElm = reflect.ValueOf(srcMapElm.Interface())
+						if dstMapElm.IsValid() {
+							dstMapElm = reflect.ValueOf(dstMapElm.Interface())
+						}
+					}
+					if err = deepMerge(dstMapElm, srcMapElm, visited, depth+1, config); err != nil {
 						return
 					}
+				case reflect.Slice:
+					srcSlice := reflect.ValueOf(srcElement.Interface())
+
+					var dstSlice reflect.Value
+					if !dstElement.IsValid() || dstElement.IsNil() {
+						dstSlice = reflect.MakeSlice(srcSlice.Type(), 0, srcSlice.Len())
+					} else {
+						dstSlice = reflect.ValueOf(dstElement.Interface())
+					}
+
+					if (!isEmptyValue(src) || overwriteWithEmptySrc || overwriteSliceWithEmptySrc) && (overwrite || isEmptyValue(dst)) && !config.AppendSlice {
+						if typeCheck && srcSlice.Type() != dstSlice.Type() {
+							return fmt.Errorf("cannot override two slices with different type (%s, %s)", srcSlice.Type(), dstSlice.Type())
+						}
+						dstSlice = srcSlice
+					} else if config.AppendSlice {
+						if srcSlice.Type() != dstSlice.Type() {
+							return fmt.Errorf("cannot append two slices with different type (%s, %s)", srcSlice.Type(), dstSlice.Type())
+						}
+						dstSlice = reflect.AppendSlice(dstSlice, srcSlice)
+					}
+					dst.SetMapIndex(key, dstSlice)
 				}
 			}
-			if dstElement.IsValid() && reflect.TypeOf(srcElement.Interface()).Kind() == reflect.Map {
+			if dstElement.IsValid() && !isEmptyValue(dstElement) && (reflect.TypeOf(srcElement.Interface()).Kind() == reflect.Map || reflect.TypeOf(srcElement.Interface()).Kind() == reflect.Slice) {
 				continue
 			}
 
-			if !isEmptyValue(srcElement) && (overwrite || (!dstElement.IsValid() || isEmptyValue(dst))) {
+			if srcElement.IsValid() && ((srcElement.Kind() != reflect.Ptr && overwrite) || !dstElement.IsValid() || isEmptyValue(dstElement)) {
 				if dst.IsNil() {
 					dst.Set(reflect.MakeMap(dst.Type()))
 				}
 				dst.SetMapIndex(key, srcElement)
 			}
 		}
+	case reflect.Slice:
+		if !dst.CanSet() {
+			break
+		}
+		if (!isEmptyValue(src) || overwriteWithEmptySrc || overwriteSliceWithEmptySrc) && (overwrite || isEmptyValue(dst)) && !config.AppendSlice {
+			dst.Set(src)
+		} else if config.AppendSlice {
+			if src.Type() != dst.Type() {
+				return fmt.Errorf("cannot append two slice with different type (%s, %s)", src.Type(), dst.Type())
+			}
+			dst.Set(reflect.AppendSlice(dst, src))
+		}
 	case reflect.Ptr:
 		fallthrough
 	case reflect.Interface:
-		if src.Kind() != reflect.Interface {
+		if src.IsNil() {
+			break
+		}
+
+		if dst.Kind() != reflect.Ptr && src.Type().AssignableTo(dst.Type()) {
 			if dst.IsNil() || overwrite {
 				if dst.CanSet() && (overwrite || isEmptyValue(dst)) {
 					dst.Set(src)
 				}
+			}
+			break
+		}
+
+		if src.Kind() != reflect.Interface {
+			if dst.IsNil() || (src.Kind() != reflect.Ptr && overwrite) {
+				if dst.CanSet() && (overwrite || isEmptyValue(dst)) {
+					dst.Set(src)
+				}
 			} else if src.Kind() == reflect.Ptr {
-				if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, overwrite); err != nil {
+				if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, config); err != nil {
 					return
 				}
 			} else if dst.Elem().Type() == src.Type() {
-				if err = deepMerge(dst.Elem(), src, visited, depth+1, overwrite); err != nil {
+				if err = deepMerge(dst.Elem(), src, visited, depth+1, config); err != nil {
 					return
 				}
 			} else {
@@ -121,20 +203,19 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
 			}
 			break
 		}
-		if src.IsNil() {
-			break
-		} else if dst.IsNil() || overwrite {
+		if dst.IsNil() || overwrite {
 			if dst.CanSet() && (overwrite || isEmptyValue(dst)) {
 				dst.Set(src)
 			}
-		} else if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, overwrite); err != nil {
+		} else if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, config); err != nil {
 			return
 		}
 	default:
-		if dst.CanSet() && !isEmptyValue(src) && (overwrite || isEmptyValue(dst)) {
+		if dst.CanSet() && (!isEmptyValue(src) || overwriteWithEmptySrc) && (overwrite || isEmptyValue(dst)) {
 			dst.Set(src)
 		}
 	}
+
 	return
 }
 
@@ -142,26 +223,61 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
 // src attributes if they themselves are not empty. dst and src must be valid same-type structs
 // and dst must be a pointer to struct.
 // It won't merge unexported (private) fields and will do recursively any exported field.
-func Merge(dst, src interface{}) error {
-	return merge(dst, src, false)
+func Merge(dst, src interface{}, opts ...func(*Config)) error {
+	return merge(dst, src, opts...)
 }
 
-// MergeWithOverwrite will do the same as Merge except that non-empty dst attributes will be overriden by
+// MergeWithOverwrite will do the same as Merge except that non-empty dst attributes will be overridden by
 // non-empty src attribute values.
-func MergeWithOverwrite(dst, src interface{}) error {
-	return merge(dst, src, true)
+// Deprecated: use Merge(…) with WithOverride
+func MergeWithOverwrite(dst, src interface{}, opts ...func(*Config)) error {
+	return merge(dst, src, append(opts, WithOverride)...)
+}
+
+// WithTransformers adds transformers to merge, allowing to customize the merging of some types.
+func WithTransformers(transformers Transformers) func(*Config) {
+	return func(config *Config) {
+		config.Transformers = transformers
+	}
+}
+
+// WithOverride will make merge override non-empty dst attributes with non-empty src attributes values.
+func WithOverride(config *Config) {
+	config.Overwrite = true
+}
+
+// WithOverride will make merge override empty dst slice with empty src slice.
+func WithOverrideEmptySlice(config *Config) {
+	config.overwriteSliceWithEmptyValue = true
+}
+
+// WithAppendSlice will make merge append slices instead of overwriting it.
+func WithAppendSlice(config *Config) {
+	config.AppendSlice = true
 }
 
-func merge(dst, src interface{}, overwrite bool) error {
+// WithTypeCheck will make merge check types while overwriting it (must be used with WithOverride).
+func WithTypeCheck(config *Config) {
+	config.TypeCheck = true
+}
+
+func merge(dst, src interface{}, opts ...func(*Config)) error {
 	var (
 		vDst, vSrc reflect.Value
 		err        error
 	)
+
+	config := &Config{}
+
+	for _, opt := range opts {
+		opt(config)
+	}
+
 	if vDst, vSrc, err = resolveValues(dst, src); err != nil {
 		return err
 	}
 	if vDst.Type() != vSrc.Type() {
 		return ErrDifferentArgumentsTypes
 	}
-	return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, overwrite)
+	return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, config)
 }
diff --git a/vendor/github.com/imdario/mergo/mergo.go b/vendor/github.com/imdario/mergo/mergo.go
index 79ccdf5c..a82fea2f 100644
--- a/vendor/github.com/imdario/mergo/mergo.go
+++ b/vendor/github.com/imdario/mergo/mergo.go
@@ -32,7 +32,7 @@ type visit struct {
 	next *visit
 }
 
-// From src/pkg/encoding/json.
+// From src/pkg/encoding/json/encode.go.
 func isEmptyValue(v reflect.Value) bool {
 	switch v.Kind() {
 	case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
@@ -45,8 +45,15 @@ func isEmptyValue(v reflect.Value) bool {
 		return v.Uint() == 0
 	case reflect.Float32, reflect.Float64:
 		return v.Float() == 0
-	case reflect.Interface, reflect.Ptr, reflect.Func:
+	case reflect.Interface, reflect.Ptr:
+		if v.IsNil() {
+			return true
+		}
+		return isEmptyValue(v.Elem())
+	case reflect.Func:
 		return v.IsNil()
+	case reflect.Invalid:
+		return true
 	}
 	return false
 }
diff --git a/vendor/github.com/satori/go.uuid/LICENSE b/vendor/github.com/satori/go.uuid/LICENSE
deleted file mode 100644
index 488357b8..00000000
--- a/vendor/github.com/satori/go.uuid/LICENSE
+++ /dev/null
@@ -1,20 +0,0 @@
-Copyright (C) 2013-2016 by Maxim Bublis <b@codemonkey.ru>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/satori/go.uuid/README.md b/vendor/github.com/satori/go.uuid/README.md
deleted file mode 100644
index b6aad1c8..00000000
--- a/vendor/github.com/satori/go.uuid/README.md
+++ /dev/null
@@ -1,65 +0,0 @@
-# UUID package for Go language
-
-[![Build Status](https://travis-ci.org/satori/go.uuid.png?branch=master)](https://travis-ci.org/satori/go.uuid)
-[![Coverage Status](https://coveralls.io/repos/github/satori/go.uuid/badge.svg?branch=master)](https://coveralls.io/github/satori/go.uuid)
-[![GoDoc](http://godoc.org/github.com/satori/go.uuid?status.png)](http://godoc.org/github.com/satori/go.uuid)
-
-This package provides pure Go implementation of Universally Unique Identifier (UUID). Supported both creation and parsing of UUIDs.
-
-With 100% test coverage and benchmarks out of box.
-
-Supported versions:
-* Version 1, based on timestamp and MAC address (RFC 4122)
-* Version 2, based on timestamp, MAC address and POSIX UID/GID (DCE 1.1)
-* Version 3, based on MD5 hashing (RFC 4122)
-* Version 4, based on random numbers (RFC 4122)
-* Version 5, based on SHA-1 hashing (RFC 4122)
-
-## Installation
-
-Use the `go` command:
-
-	$ go get github.com/satori/go.uuid
-
-## Requirements
-
-UUID package requires Go >= 1.2.
-
-## Example
-
-```go
-package main
-
-import (
-	"fmt"
-	"github.com/satori/go.uuid"
-)
-
-func main() {
-	// Creating UUID Version 4
-	u1 := uuid.NewV4()
-	fmt.Printf("UUIDv4: %s\n", u1)
-
-	// Parsing UUID from string input
-	u2, err := uuid.FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8")
-	if err != nil {
-		fmt.Printf("Something gone wrong: %s", err)
-	}
-	fmt.Printf("Successfully parsed: %s", u2)
-}
-```
-
-## Documentation
-
-[Documentation](http://godoc.org/github.com/satori/go.uuid) is hosted at GoDoc project.
-
-## Links
-* [RFC 4122](http://tools.ietf.org/html/rfc4122)
-* [DCE 1.1: Authentication and Security Services](http://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01)
-
-## Copyright
-
-Copyright (C) 2013-2016 by Maxim Bublis <b@codemonkey.ru>.
-
-UUID package released under MIT License.
-See [LICENSE](https://github.com/satori/go.uuid/blob/master/LICENSE) for details.
diff --git a/vendor/github.com/satori/go.uuid/uuid.go b/vendor/github.com/satori/go.uuid/uuid.go
deleted file mode 100644
index 9c7fbaa5..00000000
--- a/vendor/github.com/satori/go.uuid/uuid.go
+++ /dev/null
@@ -1,488 +0,0 @@
-// Copyright (C) 2013-2015 by Maxim Bublis <b@codemonkey.ru>
-//
-// Permission is hereby granted, free of charge, to any person obtaining
-// a copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to
-// permit persons to whom the Software is furnished to do so, subject to
-// the following conditions:
-//
-// The above copyright notice and this permission notice shall be
-// included in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// Package uuid provides implementation of Universally Unique Identifier (UUID).
-// Supported versions are 1, 3, 4 and 5 (as specified in RFC 4122) and
-// version 2 (as specified in DCE 1.1).
-package uuid
-
-import (
-	"bytes"
-	"crypto/md5"
-	"crypto/rand"
-	"crypto/sha1"
-	"database/sql/driver"
-	"encoding/binary"
-	"encoding/hex"
-	"fmt"
-	"hash"
-	"net"
-	"os"
-	"sync"
-	"time"
-)
-
-// UUID layout variants.
-const (
-	VariantNCS = iota
-	VariantRFC4122
-	VariantMicrosoft
-	VariantFuture
-)
-
-// UUID DCE domains.
-const (
-	DomainPerson = iota
-	DomainGroup
-	DomainOrg
-)
-
-// Difference in 100-nanosecond intervals between
-// UUID epoch (October 15, 1582) and Unix epoch (January 1, 1970).
-const epochStart = 122192928000000000
-
-// Used in string method conversion
-const dash byte = '-'
-
-// UUID v1/v2 storage.
-var (
-	storageMutex  sync.Mutex
-	storageOnce   sync.Once
-	epochFunc     = unixTimeFunc
-	clockSequence uint16
-	lastTime      uint64
-	hardwareAddr  [6]byte
-	posixUID      = uint32(os.Getuid())
-	posixGID      = uint32(os.Getgid())
-)
-
-// String parse helpers.
-var (
-	urnPrefix  = []byte("urn:uuid:")
-	byteGroups = []int{8, 4, 4, 4, 12}
-)
-
-func initClockSequence() {
-	buf := make([]byte, 2)
-	safeRandom(buf)
-	clockSequence = binary.BigEndian.Uint16(buf)
-}
-
-func initHardwareAddr() {
-	interfaces, err := net.Interfaces()
-	if err == nil {
-		for _, iface := range interfaces {
-			if len(iface.HardwareAddr) >= 6 {
-				copy(hardwareAddr[:], iface.HardwareAddr)
-				return
-			}
-		}
-	}
-
-	// Initialize hardwareAddr randomly in case
-	// of real network interfaces absence
-	safeRandom(hardwareAddr[:])
-
-	// Set multicast bit as recommended in RFC 4122
-	hardwareAddr[0] |= 0x01
-}
-
-func initStorage() {
-	initClockSequence()
-	initHardwareAddr()
-}
-
-func safeRandom(dest []byte) {
-	if _, err := rand.Read(dest); err != nil {
-		panic(err)
-	}
-}
-
-// Returns difference in 100-nanosecond intervals between
-// UUID epoch (October 15, 1582) and current time.
-// This is default epoch calculation function.
-func unixTimeFunc() uint64 {
-	return epochStart + uint64(time.Now().UnixNano()/100)
-}
-
-// UUID representation compliant with specification
-// described in RFC 4122.
-type UUID [16]byte
-
-// NullUUID can be used with the standard sql package to represent a
-// UUID value that can be NULL in the database
-type NullUUID struct {
-	UUID  UUID
-	Valid bool
-}
-
-// The nil UUID is special form of UUID that is specified to have all
-// 128 bits set to zero.
-var Nil = UUID{}
-
-// Predefined namespace UUIDs.
-var (
-	NamespaceDNS, _  = FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8")
-	NamespaceURL, _  = FromString("6ba7b811-9dad-11d1-80b4-00c04fd430c8")
-	NamespaceOID, _  = FromString("6ba7b812-9dad-11d1-80b4-00c04fd430c8")
-	NamespaceX500, _ = FromString("6ba7b814-9dad-11d1-80b4-00c04fd430c8")
-)
-
-// And returns result of binary AND of two UUIDs.
-func And(u1 UUID, u2 UUID) UUID {
-	u := UUID{}
-	for i := 0; i < 16; i++ {
-		u[i] = u1[i] & u2[i]
-	}
-	return u
-}
-
-// Or returns result of binary OR of two UUIDs.
-func Or(u1 UUID, u2 UUID) UUID {
-	u := UUID{}
-	for i := 0; i < 16; i++ {
-		u[i] = u1[i] | u2[i]
-	}
-	return u
-}
-
-// Equal returns true if u1 and u2 equals, otherwise returns false.
-func Equal(u1 UUID, u2 UUID) bool {
-	return bytes.Equal(u1[:], u2[:])
-}
-
-// Version returns algorithm version used to generate UUID.
-func (u UUID) Version() uint {
-	return uint(u[6] >> 4)
-}
-
-// Variant returns UUID layout variant.
-func (u UUID) Variant() uint {
-	switch {
-	case (u[8] & 0x80) == 0x00:
-		return VariantNCS
-	case (u[8]&0xc0)|0x80 == 0x80:
-		return VariantRFC4122
-	case (u[8]&0xe0)|0xc0 == 0xc0:
-		return VariantMicrosoft
-	}
-	return VariantFuture
-}
-
-// Bytes returns bytes slice representation of UUID.
-func (u UUID) Bytes() []byte {
-	return u[:]
-}
-
-// Returns canonical string representation of UUID:
-// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.
-func (u UUID) String() string {
-	buf := make([]byte, 36)
-
-	hex.Encode(buf[0:8], u[0:4])
-	buf[8] = dash
-	hex.Encode(buf[9:13], u[4:6])
-	buf[13] = dash
-	hex.Encode(buf[14:18], u[6:8])
-	buf[18] = dash
-	hex.Encode(buf[19:23], u[8:10])
-	buf[23] = dash
-	hex.Encode(buf[24:], u[10:])
-
-	return string(buf)
-}
-
-// SetVersion sets version bits.
-func (u *UUID) SetVersion(v byte) {
-	u[6] = (u[6] & 0x0f) | (v << 4)
-}
-
-// SetVariant sets variant bits as described in RFC 4122.
-func (u *UUID) SetVariant() {
-	u[8] = (u[8] & 0xbf) | 0x80
-}
-
-// MarshalText implements the encoding.TextMarshaler interface.
-// The encoding is the same as returned by String.
-func (u UUID) MarshalText() (text []byte, err error) {
-	text = []byte(u.String())
-	return
-}
-
-// UnmarshalText implements the encoding.TextUnmarshaler interface.
-// Following formats are supported:
-// "6ba7b810-9dad-11d1-80b4-00c04fd430c8",
-// "{6ba7b810-9dad-11d1-80b4-00c04fd430c8}",
-// "urn:uuid:6ba7b810-9dad-11d1-80b4-00c04fd430c8"
-func (u *UUID) UnmarshalText(text []byte) (err error) {
-	if len(text) < 32 {
-		err = fmt.Errorf("uuid: UUID string too short: %s", text)
-		return
-	}
-
-	t := text[:]
-	braced := false
-
-	if bytes.Equal(t[:9], urnPrefix) {
-		t = t[9:]
-	} else if t[0] == '{' {
-		braced = true
-		t = t[1:]
-	}
-
-	b := u[:]
-
-	for i, byteGroup := range byteGroups {
-		if i > 0 && t[0] == '-' {
-			t = t[1:]
-		} else if i > 0 && t[0] != '-' {
-			err = fmt.Errorf("uuid: invalid string format")
-			return
-		}
-
-		if i == 2 {
-			if !bytes.Contains([]byte("012345"), []byte{t[0]}) {
-				err = fmt.Errorf("uuid: invalid version number: %s", t[0])
-				return
-			}
-		}
-
-		if len(t) < byteGroup {
-			err = fmt.Errorf("uuid: UUID string too short: %s", text)
-			return
-		}
-
-		if i == 4 && len(t) > byteGroup &&
-			((braced && t[byteGroup] != '}') || len(t[byteGroup:]) > 1 || !braced) {
-			err = fmt.Errorf("uuid: UUID string too long: %s", t)
-			return
-		}
-
-		_, err = hex.Decode(b[:byteGroup/2], t[:byteGroup])
-
-		if err != nil {
-			return
-		}
-
-		t = t[byteGroup:]
-		b = b[byteGroup/2:]
-	}
-
-	return
-}
-
-// MarshalBinary implements the encoding.BinaryMarshaler interface.
-func (u UUID) MarshalBinary() (data []byte, err error) {
-	data = u.Bytes()
-	return
-}
-
-// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
-// It will return error if the slice isn't 16 bytes long.
-func (u *UUID) UnmarshalBinary(data []byte) (err error) {
-	if len(data) != 16 {
-		err = fmt.Errorf("uuid: UUID must be exactly 16 bytes long, got %d bytes", len(data))
-		return
-	}
-	copy(u[:], data)
-
-	return
-}
-
-// Value implements the driver.Valuer interface.
-func (u UUID) Value() (driver.Value, error) {
-	return u.String(), nil
-}
-
-// Scan implements the sql.Scanner interface.
-// A 16-byte slice is handled by UnmarshalBinary, while
-// a longer byte slice or a string is handled by UnmarshalText.
-func (u *UUID) Scan(src interface{}) error {
-	switch src := src.(type) {
-	case []byte:
-		if len(src) == 16 {
-			return u.UnmarshalBinary(src)
-		}
-		return u.UnmarshalText(src)
-
-	case string:
-		return u.UnmarshalText([]byte(src))
-	}
-
-	return fmt.Errorf("uuid: cannot convert %T to UUID", src)
-}
-
-// Value implements the driver.Valuer interface.
-func (u NullUUID) Value() (driver.Value, error) {
-	if !u.Valid {
-		return nil, nil
-	}
-	// Delegate to UUID Value function
-	return u.UUID.Value()
-}
-
-// Scan implements the sql.Scanner interface.
-func (u *NullUUID) Scan(src interface{}) error {
-	if src == nil {
-		u.UUID, u.Valid = Nil, false
-		return nil
-	}
-
-	// Delegate to UUID Scan function
-	u.Valid = true
-	return u.UUID.Scan(src)
-}
-
-// FromBytes returns UUID converted from raw byte slice input.
-// It will return error if the slice isn't 16 bytes long.
-func FromBytes(input []byte) (u UUID, err error) {
-	err = u.UnmarshalBinary(input)
-	return
-}
-
-// FromBytesOrNil returns UUID converted from raw byte slice input.
-// Same behavior as FromBytes, but returns a Nil UUID on error.
-func FromBytesOrNil(input []byte) UUID {
-	uuid, err := FromBytes(input)
-	if err != nil {
-		return Nil
-	}
-	return uuid
-}
-
-// FromString returns UUID parsed from string input.
-// Input is expected in a form accepted by UnmarshalText.
-func FromString(input string) (u UUID, err error) {
-	err = u.UnmarshalText([]byte(input))
-	return
-}
-
-// FromStringOrNil returns UUID parsed from string input.
-// Same behavior as FromString, but returns a Nil UUID on error.
-func FromStringOrNil(input string) UUID {
-	uuid, err := FromString(input)
-	if err != nil {
-		return Nil
-	}
-	return uuid
-}
-
-// Returns UUID v1/v2 storage state.
-// Returns epoch timestamp, clock sequence, and hardware address.
-func getStorage() (uint64, uint16, []byte) {
-	storageOnce.Do(initStorage)
-
-	storageMutex.Lock()
-	defer storageMutex.Unlock()
-
-	timeNow := epochFunc()
-	// Clock changed backwards since last UUID generation.
-	// Should increase clock sequence.
-	if timeNow <= lastTime {
-		clockSequence++
-	}
-	lastTime = timeNow
-
-	return timeNow, clockSequence, hardwareAddr[:]
-}
-
-// NewV1 returns UUID based on current timestamp and MAC address.
-func NewV1() UUID {
-	u := UUID{}
-
-	timeNow, clockSeq, hardwareAddr := getStorage()
-
-	binary.BigEndian.PutUint32(u[0:], uint32(timeNow))
-	binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
-	binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
-	binary.BigEndian.PutUint16(u[8:], clockSeq)
-
-	copy(u[10:], hardwareAddr)
-
-	u.SetVersion(1)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV2 returns DCE Security UUID based on POSIX UID/GID.
-func NewV2(domain byte) UUID {
-	u := UUID{}
-
-	timeNow, clockSeq, hardwareAddr := getStorage()
-
-	switch domain {
-	case DomainPerson:
-		binary.BigEndian.PutUint32(u[0:], posixUID)
-	case DomainGroup:
-		binary.BigEndian.PutUint32(u[0:], posixGID)
-	}
-
-	binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
-	binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
-	binary.BigEndian.PutUint16(u[8:], clockSeq)
-	u[9] = domain
-
-	copy(u[10:], hardwareAddr)
-
-	u.SetVersion(2)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV3 returns UUID based on MD5 hash of namespace UUID and name.
-func NewV3(ns UUID, name string) UUID {
-	u := newFromHash(md5.New(), ns, name)
-	u.SetVersion(3)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV4 returns random generated UUID.
-func NewV4() UUID {
-	u := UUID{}
-	safeRandom(u[:])
-	u.SetVersion(4)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name.
-func NewV5(ns UUID, name string) UUID {
-	u := newFromHash(sha1.New(), ns, name)
-	u.SetVersion(5)
-	u.SetVariant()
-
-	return u
-}
-
-// Returns UUID based on hashing of namespace UUID and name.
-func newFromHash(h hash.Hash, ns UUID, name string) UUID {
-	u := UUID{}
-	h.Write(ns[:])
-	h.Write([]byte(name))
-	copy(u[:], h.Sum(nil))
-
-	return u
-}
diff --git a/vendor/golang.org/x/crypto/AUTHORS b/vendor/golang.org/x/crypto/AUTHORS
deleted file mode 100644
index 15167cd7..00000000
--- a/vendor/golang.org/x/crypto/AUTHORS
+++ /dev/null
@@ -1,3 +0,0 @@
-# This source code refers to The Go Authors for copyright purposes.
-# The master list of authors is in the main Go distribution,
-# visible at http://tip.golang.org/AUTHORS.
diff --git a/vendor/golang.org/x/crypto/CONTRIBUTORS b/vendor/golang.org/x/crypto/CONTRIBUTORS
deleted file mode 100644
index 1c4577e9..00000000
--- a/vendor/golang.org/x/crypto/CONTRIBUTORS
+++ /dev/null
@@ -1,3 +0,0 @@
-# This source code was written by the Go contributors.
-# The master list of contributors is in the main Go distribution,
-# visible at http://tip.golang.org/CONTRIBUTORS.
diff --git a/vendor/golang.org/x/crypto/LICENSE b/vendor/golang.org/x/crypto/LICENSE
index 6a66aea5..2a7cf70d 100644
--- a/vendor/golang.org/x/crypto/LICENSE
+++ b/vendor/golang.org/x/crypto/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
+Copyright 2009 The Go Authors.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -10,7 +10,7 @@ notice, this list of conditions and the following disclaimer.
 copyright notice, this list of conditions and the following disclaimer
 in the documentation and/or other materials provided with the
 distribution.
-   * Neither the name of Google Inc. nor the names of its
+   * Neither the name of Google LLC nor the names of its
 contributors may be used to endorse or promote products derived from
 this software without specific prior written permission.
 
diff --git a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go b/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
index 593f6530..28cd99c7 100644
--- a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
+++ b/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
@@ -16,7 +16,7 @@ Hash Functions SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512 for HMAC. To
 choose, you can pass the `New` functions from the different SHA packages to
 pbkdf2.Key.
 */
-package pbkdf2 // import "golang.org/x/crypto/pbkdf2"
+package pbkdf2
 
 import (
 	"crypto/hmac"
@@ -32,7 +32,7 @@ import (
 // can get a derived key for e.g. AES-256 (which needs a 32-byte key) by
 // doing:
 //
-// 	dk := pbkdf2.Key([]byte("some password"), salt, 4096, 32, sha1.New)
+//	dk := pbkdf2.Key([]byte("some password"), salt, 4096, 32, sha1.New)
 //
 // Remember to get a good random salt. At least 8 bytes is recommended by the
 // RFC.
diff --git a/vendor/golang.org/x/crypto/scrypt/scrypt.go b/vendor/golang.org/x/crypto/scrypt/scrypt.go
index 7455395c..76fa40fb 100644
--- a/vendor/golang.org/x/crypto/scrypt/scrypt.go
+++ b/vendor/golang.org/x/crypto/scrypt/scrypt.go
@@ -4,12 +4,14 @@
 
 // Package scrypt implements the scrypt key derivation function as defined in
 // Colin Percival's paper "Stronger Key Derivation via Sequential Memory-Hard
-// Functions" (http://www.tarsnap.com/scrypt/scrypt.pdf).
-package scrypt // import "golang.org/x/crypto/scrypt"
+// Functions" (https://www.tarsnap.com/scrypt/scrypt.pdf).
+package scrypt
 
 import (
 	"crypto/sha256"
+	"encoding/binary"
 	"errors"
+	"math/bits"
 
 	"golang.org/x/crypto/pbkdf2"
 )
@@ -29,7 +31,7 @@ func blockXOR(dst, src []uint32, n int) {
 }
 
 // salsaXOR applies Salsa20/8 to the XOR of 16 numbers from tmp and in,
-// and puts the result into both both tmp and out.
+// and puts the result into both tmp and out.
 func salsaXOR(tmp *[16]uint32, in, out []uint32) {
 	w0 := tmp[0] ^ in[0]
 	w1 := tmp[1] ^ in[1]
@@ -52,77 +54,45 @@ func salsaXOR(tmp *[16]uint32, in, out []uint32) {
 	x9, x10, x11, x12, x13, x14, x15 := w9, w10, w11, w12, w13, w14, w15
 
 	for i := 0; i < 8; i += 2 {
-		u := x0 + x12
-		x4 ^= u<<7 | u>>(32-7)
-		u = x4 + x0
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x4
-		x12 ^= u<<13 | u>>(32-13)
-		u = x12 + x8
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x1
-		x9 ^= u<<7 | u>>(32-7)
-		u = x9 + x5
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x9
-		x1 ^= u<<13 | u>>(32-13)
-		u = x1 + x13
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x6
-		x14 ^= u<<7 | u>>(32-7)
-		u = x14 + x10
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x14
-		x6 ^= u<<13 | u>>(32-13)
-		u = x6 + x2
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x11
-		x3 ^= u<<7 | u>>(32-7)
-		u = x3 + x15
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x3
-		x11 ^= u<<13 | u>>(32-13)
-		u = x11 + x7
-		x15 ^= u<<18 | u>>(32-18)
-
-		u = x0 + x3
-		x1 ^= u<<7 | u>>(32-7)
-		u = x1 + x0
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x1
-		x3 ^= u<<13 | u>>(32-13)
-		u = x3 + x2
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x4
-		x6 ^= u<<7 | u>>(32-7)
-		u = x6 + x5
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x6
-		x4 ^= u<<13 | u>>(32-13)
-		u = x4 + x7
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x9
-		x11 ^= u<<7 | u>>(32-7)
-		u = x11 + x10
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x11
-		x9 ^= u<<13 | u>>(32-13)
-		u = x9 + x8
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x14
-		x12 ^= u<<7 | u>>(32-7)
-		u = x12 + x15
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x12
-		x14 ^= u<<13 | u>>(32-13)
-		u = x14 + x13
-		x15 ^= u<<18 | u>>(32-18)
+		x4 ^= bits.RotateLeft32(x0+x12, 7)
+		x8 ^= bits.RotateLeft32(x4+x0, 9)
+		x12 ^= bits.RotateLeft32(x8+x4, 13)
+		x0 ^= bits.RotateLeft32(x12+x8, 18)
+
+		x9 ^= bits.RotateLeft32(x5+x1, 7)
+		x13 ^= bits.RotateLeft32(x9+x5, 9)
+		x1 ^= bits.RotateLeft32(x13+x9, 13)
+		x5 ^= bits.RotateLeft32(x1+x13, 18)
+
+		x14 ^= bits.RotateLeft32(x10+x6, 7)
+		x2 ^= bits.RotateLeft32(x14+x10, 9)
+		x6 ^= bits.RotateLeft32(x2+x14, 13)
+		x10 ^= bits.RotateLeft32(x6+x2, 18)
+
+		x3 ^= bits.RotateLeft32(x15+x11, 7)
+		x7 ^= bits.RotateLeft32(x3+x15, 9)
+		x11 ^= bits.RotateLeft32(x7+x3, 13)
+		x15 ^= bits.RotateLeft32(x11+x7, 18)
+
+		x1 ^= bits.RotateLeft32(x0+x3, 7)
+		x2 ^= bits.RotateLeft32(x1+x0, 9)
+		x3 ^= bits.RotateLeft32(x2+x1, 13)
+		x0 ^= bits.RotateLeft32(x3+x2, 18)
+
+		x6 ^= bits.RotateLeft32(x5+x4, 7)
+		x7 ^= bits.RotateLeft32(x6+x5, 9)
+		x4 ^= bits.RotateLeft32(x7+x6, 13)
+		x5 ^= bits.RotateLeft32(x4+x7, 18)
+
+		x11 ^= bits.RotateLeft32(x10+x9, 7)
+		x8 ^= bits.RotateLeft32(x11+x10, 9)
+		x9 ^= bits.RotateLeft32(x8+x11, 13)
+		x10 ^= bits.RotateLeft32(x9+x8, 18)
+
+		x12 ^= bits.RotateLeft32(x15+x14, 7)
+		x13 ^= bits.RotateLeft32(x12+x15, 9)
+		x14 ^= bits.RotateLeft32(x13+x12, 13)
+		x15 ^= bits.RotateLeft32(x14+x13, 18)
 	}
 	x0 += w0
 	x1 += w1
@@ -174,36 +144,34 @@ func integer(b []uint32, r int) uint64 {
 
 func smix(b []byte, r, N int, v, xy []uint32) {
 	var tmp [16]uint32
+	R := 32 * r
 	x := xy
-	y := xy[32*r:]
+	y := xy[R:]
 
 	j := 0
-	for i := 0; i < 32*r; i++ {
-		x[i] = uint32(b[j]) | uint32(b[j+1])<<8 | uint32(b[j+2])<<16 | uint32(b[j+3])<<24
+	for i := 0; i < R; i++ {
+		x[i] = binary.LittleEndian.Uint32(b[j:])
 		j += 4
 	}
 	for i := 0; i < N; i += 2 {
-		blockCopy(v[i*(32*r):], x, 32*r)
+		blockCopy(v[i*R:], x, R)
 		blockMix(&tmp, x, y, r)
 
-		blockCopy(v[(i+1)*(32*r):], y, 32*r)
+		blockCopy(v[(i+1)*R:], y, R)
 		blockMix(&tmp, y, x, r)
 	}
 	for i := 0; i < N; i += 2 {
 		j := int(integer(x, r) & uint64(N-1))
-		blockXOR(x, v[j*(32*r):], 32*r)
+		blockXOR(x, v[j*R:], R)
 		blockMix(&tmp, x, y, r)
 
 		j = int(integer(y, r) & uint64(N-1))
-		blockXOR(y, v[j*(32*r):], 32*r)
+		blockXOR(y, v[j*R:], R)
 		blockMix(&tmp, y, x, r)
 	}
 	j = 0
-	for _, v := range x[:32*r] {
-		b[j+0] = byte(v >> 0)
-		b[j+1] = byte(v >> 8)
-		b[j+2] = byte(v >> 16)
-		b[j+3] = byte(v >> 24)
+	for _, v := range x[:R] {
+		binary.LittleEndian.PutUint32(b[j:], v)
 		j += 4
 	}
 }
@@ -218,11 +186,12 @@ func smix(b []byte, r, N int, v, xy []uint32) {
 // For example, you can get a derived key for e.g. AES-256 (which needs a
 // 32-byte key) by doing:
 //
-//      dk, err := scrypt.Key([]byte("some password"), salt, 16384, 8, 1, 32)
+//	dk, err := scrypt.Key([]byte("some password"), salt, 32768, 8, 1, 32)
 //
-// The recommended parameters for interactive logins as of 2009 are N=16384,
-// r=8, p=1. They should be increased as memory latency and CPU parallelism
-// increases. Remember to get a good random salt.
+// The recommended parameters for interactive logins as of 2017 are N=32768, r=8
+// and p=1. The parameters N, r, and p should be increased as memory latency and
+// CPU parallelism increases; consider setting N to the highest power of 2 you
+// can derive within 100 milliseconds. Remember to get a good random salt.
 func Key(password, salt []byte, N, r, p, keyLen int) ([]byte, error) {
 	if N <= 1 || N&(N-1) != 0 {
 		return nil, errors.New("scrypt: N must be > 1 and a power of 2")
diff --git a/vendor/google.golang.org/genproto/LICENSE b/vendor/google.golang.org/genproto/LICENSE
deleted file mode 100644
index d6456956..00000000
--- a/vendor/google.golang.org/genproto/LICENSE
+++ /dev/null
@@ -1,202 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
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-      direction or management of such entity, whether by contract or
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-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
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-      unless required by applicable law (such as deliberate and grossly
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-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
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diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go
index b37ccee8..8b462f3d 100644
--- a/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go
@@ -1,65 +1,119 @@
-// Code generated by protoc-gen-go.
-// source: google/api/annotations.proto
-// DO NOT EDIT!
-
-/*
-Package annotations is a generated protocol buffer package.
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 
-It is generated from these files:
-	google/api/annotations.proto
-	google/api/http.proto
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.26.0
+// 	protoc        v4.24.4
+// source: google/api/annotations.proto
 
-It has these top-level messages:
-	Http
-	HttpRule
-	CustomHttpPattern
-*/
 package annotations
 
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
+import (
+	reflect "reflect"
 
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	descriptorpb "google.golang.org/protobuf/types/descriptorpb"
+)
 
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
 
-var E_Http = &proto.ExtensionDesc{
-	ExtendedType:  (*google_protobuf.MethodOptions)(nil),
-	ExtensionType: (*HttpRule)(nil),
-	Field:         72295728,
-	Name:          "google.api.http",
-	Tag:           "bytes,72295728,opt,name=http",
-	Filename:      "google/api/annotations.proto",
+var file_google_api_annotations_proto_extTypes = []protoimpl.ExtensionInfo{
+	{
+		ExtendedType:  (*descriptorpb.MethodOptions)(nil),
+		ExtensionType: (*HttpRule)(nil),
+		Field:         72295728,
+		Name:          "google.api.http",
+		Tag:           "bytes,72295728,opt,name=http",
+		Filename:      "google/api/annotations.proto",
+	},
 }
 
-func init() {
-	proto.RegisterExtension(E_Http)
+// Extension fields to descriptorpb.MethodOptions.
+var (
+	// See `HttpRule`.
+	//
+	// optional google.api.HttpRule http = 72295728;
+	E_Http = &file_google_api_annotations_proto_extTypes[0]
+)
+
+var File_google_api_annotations_proto protoreflect.FileDescriptor
+
+var file_google_api_annotations_proto_rawDesc = []byte{
+	0x0a, 0x1c, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x61, 0x6e, 0x6e,
+	0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0a,
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+	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x4d, 0x65,
+	0x74, 0x68, 0x6f, 0x64, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0xb0, 0xca, 0xbc, 0x22,
+	0x20, 0x01, 0x28, 0x0b, 0x32, 0x14, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70,
+	0x69, 0x2e, 0x48, 0x74, 0x74, 0x70, 0x52, 0x75, 0x6c, 0x65, 0x52, 0x04, 0x68, 0x74, 0x74, 0x70,
+	0x42, 0x6e, 0x0a, 0x0e, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61,
+	0x70, 0x69, 0x42, 0x10, 0x41, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x50,
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+	0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x67, 0x65, 0x6e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x61, 0x70,
+	0x69, 0x2f, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3b, 0x61, 0x6e,
+	0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0xa2, 0x02, 0x04, 0x47, 0x41, 0x50, 0x49,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
-func init() { proto.RegisterFile("google/api/annotations.proto", fileDescriptor0) }
+var file_google_api_annotations_proto_goTypes = []interface{}{
+	(*descriptorpb.MethodOptions)(nil), // 0: google.protobuf.MethodOptions
+	(*HttpRule)(nil),                   // 1: google.api.HttpRule
+}
+var file_google_api_annotations_proto_depIdxs = []int32{
+	0, // 0: google.api.http:extendee -> google.protobuf.MethodOptions
+	1, // 1: google.api.http:type_name -> google.api.HttpRule
+	2, // [2:2] is the sub-list for method output_type
+	2, // [2:2] is the sub-list for method input_type
+	1, // [1:2] is the sub-list for extension type_name
+	0, // [0:1] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
 
-var fileDescriptor0 = []byte{
-	// 208 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x49, 0xcf, 0xcf, 0x4f,
-	0xcf, 0x49, 0xd5, 0x4f, 0x2c, 0xc8, 0xd4, 0x4f, 0xcc, 0xcb, 0xcb, 0x2f, 0x49, 0x2c, 0xc9, 0xcc,
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-	0xac, 0xc9, 0x18, 0x10, 0x00, 0x00, 0xff, 0xff, 0xe3, 0x29, 0x19, 0x62, 0x28, 0x01, 0x00, 0x00,
+func init() { file_google_api_annotations_proto_init() }
+func file_google_api_annotations_proto_init() {
+	if File_google_api_annotations_proto != nil {
+		return
+	}
+	file_google_api_http_proto_init()
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_google_api_annotations_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   0,
+			NumExtensions: 1,
+			NumServices:   0,
+		},
+		GoTypes:           file_google_api_annotations_proto_goTypes,
+		DependencyIndexes: file_google_api_annotations_proto_depIdxs,
+		ExtensionInfos:    file_google_api_annotations_proto_extTypes,
+	}.Build()
+	File_google_api_annotations_proto = out.File
+	file_google_api_annotations_proto_rawDesc = nil
+	file_google_api_annotations_proto_goTypes = nil
+	file_google_api_annotations_proto_depIdxs = nil
 }
diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go
index 583ecf61..ffb5838c 100644
--- a/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go
@@ -1,256 +1,386 @@
-// Code generated by protoc-gen-go.
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.26.0
+// 	protoc        v4.24.4
 // source: google/api/http.proto
-// DO NOT EDIT!
 
 package annotations
 
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
+import (
+	reflect "reflect"
+	sync "sync"
+
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+)
 
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
 
-// Defines the HTTP configuration for a service. It contains a list of
+// Defines the HTTP configuration for an API service. It contains a list of
 // [HttpRule][google.api.HttpRule], each specifying the mapping of an RPC method
 // to one or more HTTP REST API methods.
 type Http struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
 	// A list of HTTP configuration rules that apply to individual API methods.
 	//
 	// **NOTE:** All service configuration rules follow "last one wins" order.
-	Rules []*HttpRule `protobuf:"bytes,1,rep,name=rules" json:"rules,omitempty"`
+	Rules []*HttpRule `protobuf:"bytes,1,rep,name=rules,proto3" json:"rules,omitempty"`
+	// When set to true, URL path parameters will be fully URI-decoded except in
+	// cases of single segment matches in reserved expansion, where "%2F" will be
+	// left encoded.
+	//
+	// The default behavior is to not decode RFC 6570 reserved characters in multi
+	// segment matches.
+	FullyDecodeReservedExpansion bool `protobuf:"varint,2,opt,name=fully_decode_reserved_expansion,json=fullyDecodeReservedExpansion,proto3" json:"fully_decode_reserved_expansion,omitempty"`
+}
+
+func (x *Http) Reset() {
+	*x = Http{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_api_http_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
 }
 
-func (m *Http) Reset()                    { *m = Http{} }
-func (m *Http) String() string            { return proto.CompactTextString(m) }
-func (*Http) ProtoMessage()               {}
-func (*Http) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{0} }
+func (x *Http) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
 
-func (m *Http) GetRules() []*HttpRule {
-	if m != nil {
-		return m.Rules
+func (*Http) ProtoMessage() {}
+
+func (x *Http) ProtoReflect() protoreflect.Message {
+	mi := &file_google_api_http_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Http.ProtoReflect.Descriptor instead.
+func (*Http) Descriptor() ([]byte, []int) {
+	return file_google_api_http_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Http) GetRules() []*HttpRule {
+	if x != nil {
+		return x.Rules
 	}
 	return nil
 }
 
-// `HttpRule` defines the mapping of an RPC method to one or more HTTP
-// REST APIs.  The mapping determines what portions of the request
-// message are populated from the path, query parameters, or body of
-// the HTTP request.  The mapping is typically specified as an
-// `google.api.http` annotation, see "google/api/annotations.proto"
-// for details.
-//
-// The mapping consists of a field specifying the path template and
-// method kind.  The path template can refer to fields in the request
-// message, as in the example below which describes a REST GET
-// operation on a resource collection of messages:
-//
-//
-//     service Messaging {
-//       rpc GetMessage(GetMessageRequest) returns (Message) {
-//         option (google.api.http).get = "/v1/messages/{message_id}/{sub.subfield}";
-//       }
-//     }
-//     message GetMessageRequest {
-//       message SubMessage {
-//         string subfield = 1;
-//       }
-//       string message_id = 1; // mapped to the URL
-//       SubMessage sub = 2;    // `sub.subfield` is url-mapped
-//     }
-//     message Message {
-//       string text = 1; // content of the resource
-//     }
-//
-// The same http annotation can alternatively be expressed inside the
-// `GRPC API Configuration` YAML file.
-//
-//     http:
-//       rules:
-//         - selector: <proto_package_name>.Messaging.GetMessage
-//           get: /v1/messages/{message_id}/{sub.subfield}
-//
-// This definition enables an automatic, bidrectional mapping of HTTP
-// JSON to RPC. Example:
-//
-// HTTP | RPC
-// -----|-----
-// `GET /v1/messages/123456/foo`  | `GetMessage(message_id: "123456" sub: SubMessage(subfield: "foo"))`
-//
-// In general, not only fields but also field paths can be referenced
-// from a path pattern. Fields mapped to the path pattern cannot be
-// repeated and must have a primitive (non-message) type.
-//
-// Any fields in the request message which are not bound by the path
-// pattern automatically become (optional) HTTP query
-// parameters. Assume the following definition of the request message:
-//
-//
-//     message GetMessageRequest {
-//       message SubMessage {
-//         string subfield = 1;
-//       }
-//       string message_id = 1; // mapped to the URL
-//       int64 revision = 2;    // becomes a parameter
-//       SubMessage sub = 3;    // `sub.subfield` becomes a parameter
-//     }
-//
+func (x *Http) GetFullyDecodeReservedExpansion() bool {
+	if x != nil {
+		return x.FullyDecodeReservedExpansion
+	}
+	return false
+}
+
+// gRPC Transcoding
+//
+// gRPC Transcoding is a feature for mapping between a gRPC method and one or
+// more HTTP REST endpoints. It allows developers to build a single API service
+// that supports both gRPC APIs and REST APIs. Many systems, including [Google
+// APIs](https://github.com/googleapis/googleapis),
+// [Cloud Endpoints](https://cloud.google.com/endpoints), [gRPC
+// Gateway](https://github.com/grpc-ecosystem/grpc-gateway),
+// and [Envoy](https://github.com/envoyproxy/envoy) proxy support this feature
+// and use it for large scale production services.
+//
+// `HttpRule` defines the schema of the gRPC/REST mapping. The mapping specifies
+// how different portions of the gRPC request message are mapped to the URL
+// path, URL query parameters, and HTTP request body. It also controls how the
+// gRPC response message is mapped to the HTTP response body. `HttpRule` is
+// typically specified as an `google.api.http` annotation on the gRPC method.
+//
+// Each mapping specifies a URL path template and an HTTP method. The path
+// template may refer to one or more fields in the gRPC request message, as long
+// as each field is a non-repeated field with a primitive (non-message) type.
+// The path template controls how fields of the request message are mapped to
+// the URL path.
+//
+// Example:
+//
+//	service Messaging {
+//	  rpc GetMessage(GetMessageRequest) returns (Message) {
+//	    option (google.api.http) = {
+//	        get: "/v1/{name=messages/*}"
+//	    };
+//	  }
+//	}
+//	message GetMessageRequest {
+//	  string name = 1; // Mapped to URL path.
+//	}
+//	message Message {
+//	  string text = 1; // The resource content.
+//	}
+//
+// This enables an HTTP REST to gRPC mapping as below:
+//
+// - HTTP: `GET /v1/messages/123456`
+// - gRPC: `GetMessage(name: "messages/123456")`
+//
+// Any fields in the request message which are not bound by the path template
+// automatically become HTTP query parameters if there is no HTTP request body.
+// For example:
+//
+//	service Messaging {
+//	  rpc GetMessage(GetMessageRequest) returns (Message) {
+//	    option (google.api.http) = {
+//	        get:"/v1/messages/{message_id}"
+//	    };
+//	  }
+//	}
+//	message GetMessageRequest {
+//	  message SubMessage {
+//	    string subfield = 1;
+//	  }
+//	  string message_id = 1; // Mapped to URL path.
+//	  int64 revision = 2;    // Mapped to URL query parameter `revision`.
+//	  SubMessage sub = 3;    // Mapped to URL query parameter `sub.subfield`.
+//	}
 //
 // This enables a HTTP JSON to RPC mapping as below:
 //
-// HTTP | RPC
-// -----|-----
-// `GET /v1/messages/123456?revision=2&sub.subfield=foo` | `GetMessage(message_id: "123456" revision: 2 sub: SubMessage(subfield: "foo"))`
+// - HTTP: `GET /v1/messages/123456?revision=2&sub.subfield=foo`
+// - gRPC: `GetMessage(message_id: "123456" revision: 2 sub:
+// SubMessage(subfield: "foo"))`
 //
-// Note that fields which are mapped to HTTP parameters must have a
-// primitive type or a repeated primitive type. Message types are not
-// allowed. In the case of a repeated type, the parameter can be
-// repeated in the URL, as in `...?param=A&param=B`.
+// Note that fields which are mapped to URL query parameters must have a
+// primitive type or a repeated primitive type or a non-repeated message type.
+// In the case of a repeated type, the parameter can be repeated in the URL
+// as `...?param=A&param=B`. In the case of a message type, each field of the
+// message is mapped to a separate parameter, such as
+// `...?foo.a=A&foo.b=B&foo.c=C`.
 //
-// For HTTP method kinds which allow a request body, the `body` field
+// For HTTP methods that allow a request body, the `body` field
 // specifies the mapping. Consider a REST update method on the
 // message resource collection:
 //
-//
-//     service Messaging {
-//       rpc UpdateMessage(UpdateMessageRequest) returns (Message) {
-//         option (google.api.http) = {
-//           put: "/v1/messages/{message_id}"
-//           body: "message"
-//         };
-//       }
-//     }
-//     message UpdateMessageRequest {
-//       string message_id = 1; // mapped to the URL
-//       Message message = 2;   // mapped to the body
-//     }
-//
+//	service Messaging {
+//	  rpc UpdateMessage(UpdateMessageRequest) returns (Message) {
+//	    option (google.api.http) = {
+//	      patch: "/v1/messages/{message_id}"
+//	      body: "message"
+//	    };
+//	  }
+//	}
+//	message UpdateMessageRequest {
+//	  string message_id = 1; // mapped to the URL
+//	  Message message = 2;   // mapped to the body
+//	}
 //
 // The following HTTP JSON to RPC mapping is enabled, where the
 // representation of the JSON in the request body is determined by
 // protos JSON encoding:
 //
-// HTTP | RPC
-// -----|-----
-// `PUT /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id: "123456" message { text: "Hi!" })`
+// - HTTP: `PATCH /v1/messages/123456 { "text": "Hi!" }`
+// - gRPC: `UpdateMessage(message_id: "123456" message { text: "Hi!" })`
 //
 // The special name `*` can be used in the body mapping to define that
 // every field not bound by the path template should be mapped to the
 // request body.  This enables the following alternative definition of
 // the update method:
 //
-//     service Messaging {
-//       rpc UpdateMessage(Message) returns (Message) {
-//         option (google.api.http) = {
-//           put: "/v1/messages/{message_id}"
-//           body: "*"
-//         };
-//       }
-//     }
-//     message Message {
-//       string message_id = 1;
-//       string text = 2;
-//     }
-//
+//	service Messaging {
+//	  rpc UpdateMessage(Message) returns (Message) {
+//	    option (google.api.http) = {
+//	      patch: "/v1/messages/{message_id}"
+//	      body: "*"
+//	    };
+//	  }
+//	}
+//	message Message {
+//	  string message_id = 1;
+//	  string text = 2;
+//	}
 //
 // The following HTTP JSON to RPC mapping is enabled:
 //
-// HTTP | RPC
-// -----|-----
-// `PUT /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id: "123456" text: "Hi!")`
+// - HTTP: `PATCH /v1/messages/123456 { "text": "Hi!" }`
+// - gRPC: `UpdateMessage(message_id: "123456" text: "Hi!")`
 //
 // Note that when using `*` in the body mapping, it is not possible to
 // have HTTP parameters, as all fields not bound by the path end in
-// the body. This makes this option more rarely used in practice of
+// the body. This makes this option more rarely used in practice when
 // defining REST APIs. The common usage of `*` is in custom methods
 // which don't use the URL at all for transferring data.
 //
 // It is possible to define multiple HTTP methods for one RPC by using
 // the `additional_bindings` option. Example:
 //
-//     service Messaging {
-//       rpc GetMessage(GetMessageRequest) returns (Message) {
-//         option (google.api.http) = {
-//           get: "/v1/messages/{message_id}"
-//           additional_bindings {
-//             get: "/v1/users/{user_id}/messages/{message_id}"
-//           }
-//         };
-//       }
-//     }
-//     message GetMessageRequest {
-//       string message_id = 1;
-//       string user_id = 2;
-//     }
-//
-//
-// This enables the following two alternative HTTP JSON to RPC
-// mappings:
-//
-// HTTP | RPC
-// -----|-----
-// `GET /v1/messages/123456` | `GetMessage(message_id: "123456")`
-// `GET /v1/users/me/messages/123456` | `GetMessage(user_id: "me" message_id: "123456")`
+//	service Messaging {
+//	  rpc GetMessage(GetMessageRequest) returns (Message) {
+//	    option (google.api.http) = {
+//	      get: "/v1/messages/{message_id}"
+//	      additional_bindings {
+//	        get: "/v1/users/{user_id}/messages/{message_id}"
+//	      }
+//	    };
+//	  }
+//	}
+//	message GetMessageRequest {
+//	  string message_id = 1;
+//	  string user_id = 2;
+//	}
+//
+// This enables the following two alternative HTTP JSON to RPC mappings:
+//
+// - HTTP: `GET /v1/messages/123456`
+// - gRPC: `GetMessage(message_id: "123456")`
+//
+// - HTTP: `GET /v1/users/me/messages/123456`
+// - gRPC: `GetMessage(user_id: "me" message_id: "123456")`
 //
 // # Rules for HTTP mapping
 //
-// The rules for mapping HTTP path, query parameters, and body fields
-// to the request message are as follows:
-//
-// 1. The `body` field specifies either `*` or a field path, or is
-//    omitted. If omitted, it assumes there is no HTTP body.
-// 2. Leaf fields (recursive expansion of nested messages in the
-//    request) can be classified into three types:
-//     (a) Matched in the URL template.
-//     (b) Covered by body (if body is `*`, everything except (a) fields;
-//         else everything under the body field)
-//     (c) All other fields.
-// 3. URL query parameters found in the HTTP request are mapped to (c) fields.
-// 4. Any body sent with an HTTP request can contain only (b) fields.
-//
-// The syntax of the path template is as follows:
-//
-//     Template = "/" Segments [ Verb ] ;
-//     Segments = Segment { "/" Segment } ;
-//     Segment  = "*" | "**" | LITERAL | Variable ;
-//     Variable = "{" FieldPath [ "=" Segments ] "}" ;
-//     FieldPath = IDENT { "." IDENT } ;
-//     Verb     = ":" LITERAL ;
-//
-// The syntax `*` matches a single path segment. It follows the semantics of
-// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
-// Expansion.
+//  1. Leaf request fields (recursive expansion nested messages in the request
+//     message) are classified into three categories:
+//     - Fields referred by the path template. They are passed via the URL path.
+//     - Fields referred by the [HttpRule.body][google.api.HttpRule.body]. They
+//     are passed via the HTTP
+//     request body.
+//     - All other fields are passed via the URL query parameters, and the
+//     parameter name is the field path in the request message. A repeated
+//     field can be represented as multiple query parameters under the same
+//     name.
+//  2. If [HttpRule.body][google.api.HttpRule.body] is "*", there is no URL
+//     query parameter, all fields
+//     are passed via URL path and HTTP request body.
+//  3. If [HttpRule.body][google.api.HttpRule.body] is omitted, there is no HTTP
+//     request body, all
+//     fields are passed via URL path and URL query parameters.
+//
+// Path template syntax
+//
+//	Template = "/" Segments [ Verb ] ;
+//	Segments = Segment { "/" Segment } ;
+//	Segment  = "*" | "**" | LITERAL | Variable ;
+//	Variable = "{" FieldPath [ "=" Segments ] "}" ;
+//	FieldPath = IDENT { "." IDENT } ;
+//	Verb     = ":" LITERAL ;
+//
+// The syntax `*` matches a single URL path segment. The syntax `**` matches
+// zero or more URL path segments, which must be the last part of the URL path
+// except the `Verb`.
+//
+// The syntax `Variable` matches part of the URL path as specified by its
+// template. A variable template must not contain other variables. If a variable
+// matches a single path segment, its template may be omitted, e.g. `{var}`
+// is equivalent to `{var=*}`.
 //
-// The syntax `**` matches zero or more path segments. It follows the semantics
-// of [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.3 Reserved
-// Expansion. NOTE: it must be the last segment in the path except the Verb.
+// The syntax `LITERAL` matches literal text in the URL path. If the `LITERAL`
+// contains any reserved character, such characters should be percent-encoded
+// before the matching.
+//
+// If a variable contains exactly one path segment, such as `"{var}"` or
+// `"{var=*}"`, when such a variable is expanded into a URL path on the client
+// side, all characters except `[-_.~0-9a-zA-Z]` are percent-encoded. The
+// server side does the reverse decoding. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{var}`.
+//
+// If a variable contains multiple path segments, such as `"{var=foo/*}"`
+// or `"{var=**}"`, when such a variable is expanded into a URL path on the
+// client side, all characters except `[-_.~/0-9a-zA-Z]` are percent-encoded.
+// The server side does the reverse decoding, except "%2F" and "%2f" are left
+// unchanged. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{+var}`.
+//
+// # Using gRPC API Service Configuration
+//
+// gRPC API Service Configuration (service config) is a configuration language
+// for configuring a gRPC service to become a user-facing product. The
+// service config is simply the YAML representation of the `google.api.Service`
+// proto message.
+//
+// As an alternative to annotating your proto file, you can configure gRPC
+// transcoding in your service config YAML files. You do this by specifying a
+// `HttpRule` that maps the gRPC method to a REST endpoint, achieving the same
+// effect as the proto annotation. This can be particularly useful if you
+// have a proto that is reused in multiple services. Note that any transcoding
+// specified in the service config will override any matching transcoding
+// configuration in the proto.
+//
+// The following example selects a gRPC method and applies an `HttpRule` to it:
+//
+//	http:
+//	  rules:
+//	    - selector: example.v1.Messaging.GetMessage
+//	      get: /v1/messages/{message_id}/{sub.subfield}
+//
+// # Special notes
+//
+// When gRPC Transcoding is used to map a gRPC to JSON REST endpoints, the
+// proto to JSON conversion must follow the [proto3
+// specification](https://developers.google.com/protocol-buffers/docs/proto3#json).
+//
+// While the single segment variable follows the semantics of
+// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
+// Expansion, the multi segment variable **does not** follow RFC 6570 Section
+// 3.2.3 Reserved Expansion. The reason is that the Reserved Expansion
+// does not expand special characters like `?` and `#`, which would lead
+// to invalid URLs. As the result, gRPC Transcoding uses a custom encoding
+// for multi segment variables.
 //
-// The syntax `LITERAL` matches literal text in the URL path.
+// The path variables **must not** refer to any repeated or mapped field,
+// because client libraries are not capable of handling such variable expansion.
 //
-// The syntax `Variable` matches the entire path as specified by its template;
-// this nested template must not contain further variables. If a variable
-// matches a single path segment, its template may be omitted, e.g. `{var}`
-// is equivalent to `{var=*}`.
+// The path variables **must not** capture the leading "/" character. The reason
+// is that the most common use case "{var}" does not capture the leading "/"
+// character. For consistency, all path variables must share the same behavior.
 //
-// NOTE: the field paths in variables and in the `body` must not refer to
-// repeated fields or map fields.
+// Repeated message fields must not be mapped to URL query parameters, because
+// no client library can support such complicated mapping.
 //
-// Use CustomHttpPattern to specify any HTTP method that is not included in the
-// `pattern` field, such as HEAD, or "*" to leave the HTTP method unspecified for
-// a given URL path rule. The wild-card rule is useful for services that provide
-// content to Web (HTML) clients.
+// If an API needs to use a JSON array for request or response body, it can map
+// the request or response body to a repeated field. However, some gRPC
+// Transcoding implementations may not support this feature.
 type HttpRule struct {
-	// Selects methods to which this rule applies.
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Selects a method to which this rule applies.
 	//
-	// Refer to [selector][google.api.DocumentationRule.selector] for syntax details.
-	Selector string `protobuf:"bytes,1,opt,name=selector" json:"selector,omitempty"`
+	// Refer to [selector][google.api.DocumentationRule.selector] for syntax
+	// details.
+	Selector string `protobuf:"bytes,1,opt,name=selector,proto3" json:"selector,omitempty"`
 	// Determines the URL pattern is matched by this rules. This pattern can be
 	// used with any of the {get|put|post|delete|patch} methods. A custom method
 	// can be defined using the 'custom' field.
 	//
-	// Types that are valid to be assigned to Pattern:
+	// Types that are assignable to Pattern:
+	//
 	//	*HttpRule_Get
 	//	*HttpRule_Put
 	//	*HttpRule_Post
@@ -258,51 +388,64 @@ type HttpRule struct {
 	//	*HttpRule_Patch
 	//	*HttpRule_Custom
 	Pattern isHttpRule_Pattern `protobuf_oneof:"pattern"`
-	// The name of the request field whose value is mapped to the HTTP body, or
-	// `*` for mapping all fields not captured by the path pattern to the HTTP
-	// body. NOTE: the referred field must not be a repeated field and must be
-	// present at the top-level of request message type.
-	Body string `protobuf:"bytes,7,opt,name=body" json:"body,omitempty"`
+	// The name of the request field whose value is mapped to the HTTP request
+	// body, or `*` for mapping all request fields not captured by the path
+	// pattern to the HTTP body, or omitted for not having any HTTP request body.
+	//
+	// NOTE: the referred field must be present at the top-level of the request
+	// message type.
+	Body string `protobuf:"bytes,7,opt,name=body,proto3" json:"body,omitempty"`
+	// Optional. The name of the response field whose value is mapped to the HTTP
+	// response body. When omitted, the entire response message will be used
+	// as the HTTP response body.
+	//
+	// NOTE: The referred field must be present at the top-level of the response
+	// message type.
+	ResponseBody string `protobuf:"bytes,12,opt,name=response_body,json=responseBody,proto3" json:"response_body,omitempty"`
 	// Additional HTTP bindings for the selector. Nested bindings must
 	// not contain an `additional_bindings` field themselves (that is,
 	// the nesting may only be one level deep).
-	AdditionalBindings []*HttpRule `protobuf:"bytes,11,rep,name=additional_bindings,json=additionalBindings" json:"additional_bindings,omitempty"`
+	AdditionalBindings []*HttpRule `protobuf:"bytes,11,rep,name=additional_bindings,json=additionalBindings,proto3" json:"additional_bindings,omitempty"`
 }
 
-func (m *HttpRule) Reset()                    { *m = HttpRule{} }
-func (m *HttpRule) String() string            { return proto.CompactTextString(m) }
-func (*HttpRule) ProtoMessage()               {}
-func (*HttpRule) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{1} }
-
-type isHttpRule_Pattern interface {
-	isHttpRule_Pattern()
+func (x *HttpRule) Reset() {
+	*x = HttpRule{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_api_http_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
 }
 
-type HttpRule_Get struct {
-	Get string `protobuf:"bytes,2,opt,name=get,oneof"`
-}
-type HttpRule_Put struct {
-	Put string `protobuf:"bytes,3,opt,name=put,oneof"`
-}
-type HttpRule_Post struct {
-	Post string `protobuf:"bytes,4,opt,name=post,oneof"`
+func (x *HttpRule) String() string {
+	return protoimpl.X.MessageStringOf(x)
 }
-type HttpRule_Delete struct {
-	Delete string `protobuf:"bytes,5,opt,name=delete,oneof"`
-}
-type HttpRule_Patch struct {
-	Patch string `protobuf:"bytes,6,opt,name=patch,oneof"`
+
+func (*HttpRule) ProtoMessage() {}
+
+func (x *HttpRule) ProtoReflect() protoreflect.Message {
+	mi := &file_google_api_http_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
 }
-type HttpRule_Custom struct {
-	Custom *CustomHttpPattern `protobuf:"bytes,8,opt,name=custom,oneof"`
+
+// Deprecated: Use HttpRule.ProtoReflect.Descriptor instead.
+func (*HttpRule) Descriptor() ([]byte, []int) {
+	return file_google_api_http_proto_rawDescGZIP(), []int{1}
 }
 
-func (*HttpRule_Get) isHttpRule_Pattern()    {}
-func (*HttpRule_Put) isHttpRule_Pattern()    {}
-func (*HttpRule_Post) isHttpRule_Pattern()   {}
-func (*HttpRule_Delete) isHttpRule_Pattern() {}
-func (*HttpRule_Patch) isHttpRule_Pattern()  {}
-func (*HttpRule_Custom) isHttpRule_Pattern() {}
+func (x *HttpRule) GetSelector() string {
+	if x != nil {
+		return x.Selector
+	}
+	return ""
+}
 
 func (m *HttpRule) GetPattern() isHttpRule_Pattern {
 	if m != nil {
@@ -311,257 +454,321 @@ func (m *HttpRule) GetPattern() isHttpRule_Pattern {
 	return nil
 }
 
-func (m *HttpRule) GetSelector() string {
-	if m != nil {
-		return m.Selector
-	}
-	return ""
-}
-
-func (m *HttpRule) GetGet() string {
-	if x, ok := m.GetPattern().(*HttpRule_Get); ok {
+func (x *HttpRule) GetGet() string {
+	if x, ok := x.GetPattern().(*HttpRule_Get); ok {
 		return x.Get
 	}
 	return ""
 }
 
-func (m *HttpRule) GetPut() string {
-	if x, ok := m.GetPattern().(*HttpRule_Put); ok {
+func (x *HttpRule) GetPut() string {
+	if x, ok := x.GetPattern().(*HttpRule_Put); ok {
 		return x.Put
 	}
 	return ""
 }
 
-func (m *HttpRule) GetPost() string {
-	if x, ok := m.GetPattern().(*HttpRule_Post); ok {
+func (x *HttpRule) GetPost() string {
+	if x, ok := x.GetPattern().(*HttpRule_Post); ok {
 		return x.Post
 	}
 	return ""
 }
 
-func (m *HttpRule) GetDelete() string {
-	if x, ok := m.GetPattern().(*HttpRule_Delete); ok {
+func (x *HttpRule) GetDelete() string {
+	if x, ok := x.GetPattern().(*HttpRule_Delete); ok {
 		return x.Delete
 	}
 	return ""
 }
 
-func (m *HttpRule) GetPatch() string {
-	if x, ok := m.GetPattern().(*HttpRule_Patch); ok {
+func (x *HttpRule) GetPatch() string {
+	if x, ok := x.GetPattern().(*HttpRule_Patch); ok {
 		return x.Patch
 	}
 	return ""
 }
 
-func (m *HttpRule) GetCustom() *CustomHttpPattern {
-	if x, ok := m.GetPattern().(*HttpRule_Custom); ok {
+func (x *HttpRule) GetCustom() *CustomHttpPattern {
+	if x, ok := x.GetPattern().(*HttpRule_Custom); ok {
 		return x.Custom
 	}
 	return nil
 }
 
-func (m *HttpRule) GetBody() string {
-	if m != nil {
-		return m.Body
+func (x *HttpRule) GetBody() string {
+	if x != nil {
+		return x.Body
 	}
 	return ""
 }
 
-func (m *HttpRule) GetAdditionalBindings() []*HttpRule {
-	if m != nil {
-		return m.AdditionalBindings
+func (x *HttpRule) GetResponseBody() string {
+	if x != nil {
+		return x.ResponseBody
 	}
-	return nil
+	return ""
 }
 
-// XXX_OneofFuncs is for the internal use of the proto package.
-func (*HttpRule) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
-	return _HttpRule_OneofMarshaler, _HttpRule_OneofUnmarshaler, _HttpRule_OneofSizer, []interface{}{
-		(*HttpRule_Get)(nil),
-		(*HttpRule_Put)(nil),
-		(*HttpRule_Post)(nil),
-		(*HttpRule_Delete)(nil),
-		(*HttpRule_Patch)(nil),
-		(*HttpRule_Custom)(nil),
+func (x *HttpRule) GetAdditionalBindings() []*HttpRule {
+	if x != nil {
+		return x.AdditionalBindings
 	}
+	return nil
 }
 
-func _HttpRule_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
-	m := msg.(*HttpRule)
-	// pattern
-	switch x := m.Pattern.(type) {
-	case *HttpRule_Get:
-		b.EncodeVarint(2<<3 | proto.WireBytes)
-		b.EncodeStringBytes(x.Get)
-	case *HttpRule_Put:
-		b.EncodeVarint(3<<3 | proto.WireBytes)
-		b.EncodeStringBytes(x.Put)
-	case *HttpRule_Post:
-		b.EncodeVarint(4<<3 | proto.WireBytes)
-		b.EncodeStringBytes(x.Post)
-	case *HttpRule_Delete:
-		b.EncodeVarint(5<<3 | proto.WireBytes)
-		b.EncodeStringBytes(x.Delete)
-	case *HttpRule_Patch:
-		b.EncodeVarint(6<<3 | proto.WireBytes)
-		b.EncodeStringBytes(x.Patch)
-	case *HttpRule_Custom:
-		b.EncodeVarint(8<<3 | proto.WireBytes)
-		if err := b.EncodeMessage(x.Custom); err != nil {
-			return err
-		}
-	case nil:
-	default:
-		return fmt.Errorf("HttpRule.Pattern has unexpected type %T", x)
-	}
-	return nil
+type isHttpRule_Pattern interface {
+	isHttpRule_Pattern()
 }
 
-func _HttpRule_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
-	m := msg.(*HttpRule)
-	switch tag {
-	case 2: // pattern.get
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeStringBytes()
-		m.Pattern = &HttpRule_Get{x}
-		return true, err
-	case 3: // pattern.put
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeStringBytes()
-		m.Pattern = &HttpRule_Put{x}
-		return true, err
-	case 4: // pattern.post
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeStringBytes()
-		m.Pattern = &HttpRule_Post{x}
-		return true, err
-	case 5: // pattern.delete
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeStringBytes()
-		m.Pattern = &HttpRule_Delete{x}
-		return true, err
-	case 6: // pattern.patch
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		x, err := b.DecodeStringBytes()
-		m.Pattern = &HttpRule_Patch{x}
-		return true, err
-	case 8: // pattern.custom
-		if wire != proto.WireBytes {
-			return true, proto.ErrInternalBadWireType
-		}
-		msg := new(CustomHttpPattern)
-		err := b.DecodeMessage(msg)
-		m.Pattern = &HttpRule_Custom{msg}
-		return true, err
-	default:
-		return false, nil
-	}
+type HttpRule_Get struct {
+	// Maps to HTTP GET. Used for listing and getting information about
+	// resources.
+	Get string `protobuf:"bytes,2,opt,name=get,proto3,oneof"`
 }
 
-func _HttpRule_OneofSizer(msg proto.Message) (n int) {
-	m := msg.(*HttpRule)
-	// pattern
-	switch x := m.Pattern.(type) {
-	case *HttpRule_Get:
-		n += proto.SizeVarint(2<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(len(x.Get)))
-		n += len(x.Get)
-	case *HttpRule_Put:
-		n += proto.SizeVarint(3<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(len(x.Put)))
-		n += len(x.Put)
-	case *HttpRule_Post:
-		n += proto.SizeVarint(4<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(len(x.Post)))
-		n += len(x.Post)
-	case *HttpRule_Delete:
-		n += proto.SizeVarint(5<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(len(x.Delete)))
-		n += len(x.Delete)
-	case *HttpRule_Patch:
-		n += proto.SizeVarint(6<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(len(x.Patch)))
-		n += len(x.Patch)
-	case *HttpRule_Custom:
-		s := proto.Size(x.Custom)
-		n += proto.SizeVarint(8<<3 | proto.WireBytes)
-		n += proto.SizeVarint(uint64(s))
-		n += s
-	case nil:
-	default:
-		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
-	}
-	return n
+type HttpRule_Put struct {
+	// Maps to HTTP PUT. Used for replacing a resource.
+	Put string `protobuf:"bytes,3,opt,name=put,proto3,oneof"`
 }
 
+type HttpRule_Post struct {
+	// Maps to HTTP POST. Used for creating a resource or performing an action.
+	Post string `protobuf:"bytes,4,opt,name=post,proto3,oneof"`
+}
+
+type HttpRule_Delete struct {
+	// Maps to HTTP DELETE. Used for deleting a resource.
+	Delete string `protobuf:"bytes,5,opt,name=delete,proto3,oneof"`
+}
+
+type HttpRule_Patch struct {
+	// Maps to HTTP PATCH. Used for updating a resource.
+	Patch string `protobuf:"bytes,6,opt,name=patch,proto3,oneof"`
+}
+
+type HttpRule_Custom struct {
+	// The custom pattern is used for specifying an HTTP method that is not
+	// included in the `pattern` field, such as HEAD, or "*" to leave the
+	// HTTP method unspecified for this rule. The wild-card rule is useful
+	// for services that provide content to Web (HTML) clients.
+	Custom *CustomHttpPattern `protobuf:"bytes,8,opt,name=custom,proto3,oneof"`
+}
+
+func (*HttpRule_Get) isHttpRule_Pattern() {}
+
+func (*HttpRule_Put) isHttpRule_Pattern() {}
+
+func (*HttpRule_Post) isHttpRule_Pattern() {}
+
+func (*HttpRule_Delete) isHttpRule_Pattern() {}
+
+func (*HttpRule_Patch) isHttpRule_Pattern() {}
+
+func (*HttpRule_Custom) isHttpRule_Pattern() {}
+
 // A custom pattern is used for defining custom HTTP verb.
 type CustomHttpPattern struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
 	// The name of this custom HTTP verb.
-	Kind string `protobuf:"bytes,1,opt,name=kind" json:"kind,omitempty"`
+	Kind string `protobuf:"bytes,1,opt,name=kind,proto3" json:"kind,omitempty"`
 	// The path matched by this custom verb.
-	Path string `protobuf:"bytes,2,opt,name=path" json:"path,omitempty"`
+	Path string `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
 }
 
-func (m *CustomHttpPattern) Reset()                    { *m = CustomHttpPattern{} }
-func (m *CustomHttpPattern) String() string            { return proto.CompactTextString(m) }
-func (*CustomHttpPattern) ProtoMessage()               {}
-func (*CustomHttpPattern) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{2} }
+func (x *CustomHttpPattern) Reset() {
+	*x = CustomHttpPattern{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_api_http_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
 
-func (m *CustomHttpPattern) GetKind() string {
-	if m != nil {
-		return m.Kind
+func (x *CustomHttpPattern) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CustomHttpPattern) ProtoMessage() {}
+
+func (x *CustomHttpPattern) ProtoReflect() protoreflect.Message {
+	mi := &file_google_api_http_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CustomHttpPattern.ProtoReflect.Descriptor instead.
+func (*CustomHttpPattern) Descriptor() ([]byte, []int) {
+	return file_google_api_http_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *CustomHttpPattern) GetKind() string {
+	if x != nil {
+		return x.Kind
 	}
 	return ""
 }
 
-func (m *CustomHttpPattern) GetPath() string {
-	if m != nil {
-		return m.Path
+func (x *CustomHttpPattern) GetPath() string {
+	if x != nil {
+		return x.Path
 	}
 	return ""
 }
 
-func init() {
-	proto.RegisterType((*Http)(nil), "google.api.Http")
-	proto.RegisterType((*HttpRule)(nil), "google.api.HttpRule")
-	proto.RegisterType((*CustomHttpPattern)(nil), "google.api.CustomHttpPattern")
-}
-
-func init() { proto.RegisterFile("google/api/http.proto", fileDescriptor1) }
-
-var fileDescriptor1 = []byte{
-	// 359 bytes of a gzipped FileDescriptorProto
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-	0x15, 0x60, 0x5b, 0x40, 0x02, 0x00, 0x00,
+var File_google_api_http_proto protoreflect.FileDescriptor
+
+var file_google_api_http_proto_rawDesc = []byte{
+	0x0a, 0x15, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x68, 0x74, 0x74,
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+	0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0xf8, 0x01, 0x01, 0xa2, 0x02, 0x04,
+	0x47, 0x41, 0x50, 0x49, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_google_api_http_proto_rawDescOnce sync.Once
+	file_google_api_http_proto_rawDescData = file_google_api_http_proto_rawDesc
+)
+
+func file_google_api_http_proto_rawDescGZIP() []byte {
+	file_google_api_http_proto_rawDescOnce.Do(func() {
+		file_google_api_http_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_http_proto_rawDescData)
+	})
+	return file_google_api_http_proto_rawDescData
+}
+
+var file_google_api_http_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
+var file_google_api_http_proto_goTypes = []interface{}{
+	(*Http)(nil),              // 0: google.api.Http
+	(*HttpRule)(nil),          // 1: google.api.HttpRule
+	(*CustomHttpPattern)(nil), // 2: google.api.CustomHttpPattern
+}
+var file_google_api_http_proto_depIdxs = []int32{
+	1, // 0: google.api.Http.rules:type_name -> google.api.HttpRule
+	2, // 1: google.api.HttpRule.custom:type_name -> google.api.CustomHttpPattern
+	1, // 2: google.api.HttpRule.additional_bindings:type_name -> google.api.HttpRule
+	3, // [3:3] is the sub-list for method output_type
+	3, // [3:3] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
+}
+
+func init() { file_google_api_http_proto_init() }
+func file_google_api_http_proto_init() {
+	if File_google_api_http_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_google_api_http_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Http); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_google_api_http_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*HttpRule); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_google_api_http_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CustomHttpPattern); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_google_api_http_proto_msgTypes[1].OneofWrappers = []interface{}{
+		(*HttpRule_Get)(nil),
+		(*HttpRule_Put)(nil),
+		(*HttpRule_Post)(nil),
+		(*HttpRule_Delete)(nil),
+		(*HttpRule_Patch)(nil),
+		(*HttpRule_Custom)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_google_api_http_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   3,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_google_api_http_proto_goTypes,
+		DependencyIndexes: file_google_api_http_proto_depIdxs,
+		MessageInfos:      file_google_api_http_proto_msgTypes,
+	}.Build()
+	File_google_api_http_proto = out.File
+	file_google_api_http_proto_rawDesc = nil
+	file_google_api_http_proto_goTypes = nil
+	file_google_api_http_proto_depIdxs = nil
 }
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 9f155cd8..6e93a6ef 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -1,34 +1,904 @@
-# github.com/Masterminds/semver v1.2.2
+# cel.dev/expr v0.16.0
+## explicit; go 1.18
+# cloud.google.com/go v0.116.0
+## explicit; go 1.21
+# cloud.google.com/go/accessapproval v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/accesscontextmanager v1.9.2
+## explicit; go 1.21
+# cloud.google.com/go/aiplatform v1.69.0
+## explicit; go 1.21
+# cloud.google.com/go/analytics v0.25.2
+## explicit; go 1.21
+# cloud.google.com/go/apigateway v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/apigeeconnect v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/apigeeregistry v0.9.2
+## explicit; go 1.21
+# cloud.google.com/go/apikeys v0.6.0
+## explicit; go 1.19
+# cloud.google.com/go/appengine v1.9.2
+## explicit; go 1.21
+# cloud.google.com/go/area120 v0.9.2
+## explicit; go 1.21
+# cloud.google.com/go/artifactregistry v1.16.0
+## explicit; go 1.21
+# cloud.google.com/go/asset v1.20.3
+## explicit; go 1.21
+# cloud.google.com/go/assuredworkloads v1.12.2
+## explicit; go 1.21
+# cloud.google.com/go/auth v0.11.0
+## explicit; go 1.21
+# cloud.google.com/go/auth/oauth2adapt v0.2.6
+## explicit; go 1.21
+# cloud.google.com/go/automl v1.14.2
+## explicit; go 1.21
+# cloud.google.com/go/baremetalsolution v1.3.2
+## explicit; go 1.21
+# cloud.google.com/go/batch v1.11.3
+## explicit; go 1.21
+# cloud.google.com/go/beyondcorp v1.1.2
+## explicit; go 1.21
+# cloud.google.com/go/bigquery v1.65.0
+## explicit; go 1.21
+# cloud.google.com/go/bigtable v1.33.0
+## explicit; go 1.21
+# cloud.google.com/go/billing v1.20.0
+## explicit; go 1.21
+# cloud.google.com/go/binaryauthorization v1.9.2
+## explicit; go 1.21
+# cloud.google.com/go/certificatemanager v1.9.2
+## explicit; go 1.21
+# cloud.google.com/go/channel v1.19.1
+## explicit; go 1.21
+# cloud.google.com/go/cloudbuild v1.19.0
+## explicit; go 1.21
+# cloud.google.com/go/clouddms v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/cloudtasks v1.13.2
+## explicit; go 1.21
+# cloud.google.com/go/compute v1.29.0
+## explicit; go 1.21
+# cloud.google.com/go/compute/metadata v0.5.2
+## explicit; go 1.21
+# cloud.google.com/go/contactcenterinsights v1.16.0
+## explicit; go 1.21
+# cloud.google.com/go/container v1.42.0
+## explicit; go 1.21
+# cloud.google.com/go/containeranalysis v0.13.2
+## explicit; go 1.21
+# cloud.google.com/go/datacatalog v1.24.0
+## explicit; go 1.21
+# cloud.google.com/go/dataflow v0.10.2
+## explicit; go 1.21
+# cloud.google.com/go/dataform v0.10.2
+## explicit; go 1.21
+# cloud.google.com/go/datafusion v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/datalabeling v0.9.2
+## explicit; go 1.21
+# cloud.google.com/go/dataplex v1.20.0
+## explicit; go 1.21
+# cloud.google.com/go/dataproc v1.12.0
+## explicit; go 1.19
+# cloud.google.com/go/dataproc/v2 v2.10.0
+## explicit; go 1.21
+# cloud.google.com/go/dataqna v0.9.2
+## explicit; go 1.21
+# cloud.google.com/go/datastore v1.20.0
+## explicit; go 1.21
+# cloud.google.com/go/datastream v1.12.0
+## explicit; go 1.21
+# cloud.google.com/go/deploy v1.26.0
+## explicit; go 1.21
+# cloud.google.com/go/dialogflow v1.62.0
+## explicit; go 1.21
+# cloud.google.com/go/dlp v1.20.0
+## explicit; go 1.21
+# cloud.google.com/go/documentai v1.35.0
+## explicit; go 1.21
+# cloud.google.com/go/domains v0.10.2
+## explicit; go 1.21
+# cloud.google.com/go/edgecontainer v1.4.0
+## explicit; go 1.21
+# cloud.google.com/go/errorreporting v0.3.1
+## explicit; go 1.20
+# cloud.google.com/go/essentialcontacts v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/eventarc v1.15.0
+## explicit; go 1.21
+# cloud.google.com/go/filestore v1.9.2
+## explicit; go 1.21
+# cloud.google.com/go/firestore v1.17.0
+## explicit; go 1.21
+# cloud.google.com/go/functions v1.19.2
+## explicit; go 1.21
+# cloud.google.com/go/gaming v1.10.1
+## explicit; go 1.19
+# cloud.google.com/go/gkebackup v1.6.2
+## explicit; go 1.21
+# cloud.google.com/go/gkeconnect v0.12.0
+## explicit; go 1.21
+# cloud.google.com/go/gkehub v0.15.2
+## explicit; go 1.21
+# cloud.google.com/go/gkemulticloud v1.4.1
+## explicit; go 1.21
+# cloud.google.com/go/grafeas v0.3.11
+## explicit; go 1.21
+# cloud.google.com/go/gsuiteaddons v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/iam v1.3.0
+## explicit; go 1.21
+# cloud.google.com/go/iap v1.10.2
+## explicit; go 1.21
+# cloud.google.com/go/ids v1.5.2
+## explicit; go 1.21
+# cloud.google.com/go/iot v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/kms v1.20.2
+## explicit; go 1.21
+# cloud.google.com/go/language v1.14.2
+## explicit; go 1.21
+# cloud.google.com/go/lifesciences v0.10.2
+## explicit; go 1.21
+# cloud.google.com/go/logging v1.12.0
+## explicit; go 1.21
+# cloud.google.com/go/longrunning v0.6.3
+## explicit; go 1.21
+# cloud.google.com/go/managedidentities v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/maps v1.16.0
+## explicit; go 1.21
+# cloud.google.com/go/mediatranslation v0.9.2
+## explicit; go 1.21
+# cloud.google.com/go/memcache v1.11.2
+## explicit; go 1.21
+# cloud.google.com/go/metastore v1.14.2
+## explicit; go 1.21
+# cloud.google.com/go/monitoring v1.22.0
+## explicit; go 1.21
+# cloud.google.com/go/networkconnectivity v1.16.0
+## explicit; go 1.21
+# cloud.google.com/go/networkmanagement v1.17.0
+## explicit; go 1.21
+# cloud.google.com/go/networksecurity v0.10.2
+## explicit; go 1.21
+# cloud.google.com/go/notebooks v1.12.2
+## explicit; go 1.21
+# cloud.google.com/go/optimization v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/orchestration v1.11.1
+## explicit; go 1.21
+# cloud.google.com/go/orgpolicy v1.14.1
+## explicit; go 1.21
+# cloud.google.com/go/osconfig v1.14.2
+## explicit; go 1.21
+# cloud.google.com/go/oslogin v1.14.2
+## explicit; go 1.21
+# cloud.google.com/go/phishingprotection v0.9.2
+## explicit; go 1.21
+# cloud.google.com/go/policytroubleshooter v1.11.2
+## explicit; go 1.21
+# cloud.google.com/go/privatecatalog v0.10.2
+## explicit; go 1.21
+# cloud.google.com/go/pubsub v1.45.3
+## explicit; go 1.21
+# cloud.google.com/go/pubsublite v1.8.2
+## explicit; go 1.20
+# cloud.google.com/go/recaptchaenterprise v1.3.1
+## explicit; go 1.16
+# cloud.google.com/go/recaptchaenterprise/v2 v2.19.1
+## explicit; go 1.21
+# cloud.google.com/go/recommendationengine v0.9.2
+## explicit; go 1.21
+# cloud.google.com/go/recommender v1.13.2
+## explicit; go 1.21
+# cloud.google.com/go/redis v1.17.2
+## explicit; go 1.21
+# cloud.google.com/go/resourcemanager v1.10.2
+## explicit; go 1.21
+# cloud.google.com/go/resourcesettings v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/retail v1.19.1
+## explicit; go 1.21
+# cloud.google.com/go/run v1.8.0
+## explicit; go 1.21
+# cloud.google.com/go/scheduler v1.11.2
+## explicit; go 1.21
+# cloud.google.com/go/secretmanager v1.14.2
+## explicit; go 1.21
+# cloud.google.com/go/security v1.18.2
+## explicit; go 1.21
+# cloud.google.com/go/securitycenter v1.35.2
+## explicit; go 1.21
+# cloud.google.com/go/servicecontrol v1.11.1
+## explicit; go 1.19
+# cloud.google.com/go/servicedirectory v1.12.2
+## explicit; go 1.21
+# cloud.google.com/go/servicemanagement v1.8.0
+## explicit; go 1.19
+# cloud.google.com/go/serviceusage v1.6.0
+## explicit; go 1.19
+# cloud.google.com/go/shell v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/spanner v1.73.0
+## explicit; go 1.21
+# cloud.google.com/go/speech v1.25.2
+## explicit; go 1.21
+# cloud.google.com/go/storage v1.43.0
+## explicit; go 1.20
+# cloud.google.com/go/storagetransfer v1.11.2
+## explicit; go 1.21
+# cloud.google.com/go/talent v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/texttospeech v1.10.0
+## explicit; go 1.21
+# cloud.google.com/go/tpu v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/trace v1.11.2
+## explicit; go 1.21
+# cloud.google.com/go/translate v1.12.2
+## explicit; go 1.21
+# cloud.google.com/go/video v1.23.2
+## explicit; go 1.21
+# cloud.google.com/go/videointelligence v1.12.2
+## explicit; go 1.21
+# cloud.google.com/go/vision v1.2.0
+## explicit; go 1.16
+# cloud.google.com/go/vision/v2 v2.9.2
+## explicit; go 1.21
+# cloud.google.com/go/vmmigration v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/vmwareengine v1.3.2
+## explicit; go 1.21
+# cloud.google.com/go/vpcaccess v1.8.2
+## explicit; go 1.21
+# cloud.google.com/go/webrisk v1.10.2
+## explicit; go 1.21
+# cloud.google.com/go/websecurityscanner v1.7.2
+## explicit; go 1.21
+# cloud.google.com/go/workflows v1.13.2
+## explicit; go 1.21
+# dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9
+## explicit
+# gioui.org v0.0.0-20210308172011-57750fc8a0a6
+## explicit; go 1.14
+# git.sr.ht/~sbinet/gg v0.3.1
+## explicit; go 1.16
+# github.com/BurntSushi/toml v0.3.1
+## explicit
+# github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802
+## explicit
+# github.com/GoogleCloudPlatform/grpc-gcp-go/grpcgcp v1.5.0
+## explicit; go 1.12
+# github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.24.1
+## explicit; go 1.21
+# github.com/JohnCGriffin/overflow v0.0.0-20211019200055-46fa312c352c
+## explicit
+# github.com/Masterminds/goutils v1.1.0
+## explicit
+github.com/Masterminds/goutils
+# github.com/Masterminds/semver v1.5.0
+## explicit
 github.com/Masterminds/semver
-# github.com/Masterminds/sprig v2.14.1+incompatible
+# github.com/Masterminds/sprig v2.22.0+incompatible
+## explicit
 github.com/Masterminds/sprig
-# github.com/aokoli/goutils v0.0.0-20170502144750-e57d01ace047
-github.com/aokoli/goutils
-# github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
+# github.com/OneOfOne/xxhash v1.2.2
+## explicit
+# github.com/ajstarks/deck v0.0.0-20200831202436-30c9fc6549a9
+## explicit; go 1.14
+# github.com/ajstarks/deck/generate v0.0.0-20210309230005-c3f852c02e19
+## explicit; go 1.15
+# github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b
+## explicit; go 1.15
+# github.com/alecthomas/assert/v2 v2.3.0
+## explicit; go 1.18
+# github.com/alecthomas/participle/v2 v2.1.0
+## explicit; go 1.18
+# github.com/alecthomas/repr v0.2.0
+## explicit; go 1.18
+# github.com/andybalholm/brotli v1.0.5
+## explicit; go 1.12
+# github.com/antihax/optional v1.0.0
+## explicit; go 1.13
+# github.com/apache/arrow/go/v10 v10.0.1
+## explicit; go 1.17
+# github.com/apache/arrow/go/v11 v11.0.0
+## explicit; go 1.18
+# github.com/apache/arrow/go/v12 v12.0.1
+## explicit; go 1.20
+# github.com/apache/arrow/go/v14 v14.0.2
+## explicit; go 1.20
+# github.com/apache/arrow/go/v15 v15.0.2
+## explicit; go 1.20
+# github.com/apache/thrift v0.17.0
+## explicit; go 1.18
+# github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e
+## explicit
+# github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da
+## explicit
+# github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310
+## explicit
+# github.com/bgentry/speakeasy v0.1.0
+## explicit
+# github.com/bketelsen/crypt v0.0.4
+## explicit; go 1.12
+# github.com/boombuler/barcode v1.0.1
+## explicit
+# github.com/census-instrumentation/opencensus-proto v0.4.1
+## explicit; go 1.18
+# github.com/cespare/xxhash v1.1.0
+## explicit
+# github.com/cespare/xxhash/v2 v2.3.0
+## explicit; go 1.11
+# github.com/chzyer/logex v1.2.0
+## explicit; go 1.17
+# github.com/chzyer/readline v1.5.0
+## explicit; go 1.15
+# github.com/chzyer/test v0.0.0-20210722231415-061457976a23
+## explicit
+# github.com/client9/misspell v0.3.4
+## explicit
+# github.com/cncf/udpa/go v0.0.0-20220112060539-c52dc94e7fbe
+## explicit; go 1.11
+# github.com/cncf/xds/go v0.0.0-20240822171458-6449f94b4d59
+## explicit; go 1.19
+# github.com/coreos/go-semver v0.3.0
+## explicit
+# github.com/coreos/go-systemd/v22 v22.3.2
+## explicit; go 1.12
+# github.com/cpuguy83/go-md2man/v2 v2.0.0
+## explicit; go 1.12
+# github.com/creack/pty v1.1.9
+## explicit; go 1.13
+# github.com/davecgh/go-spew v1.1.1
+## explicit
+# github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815
+## explicit
+# github.com/dustin/go-humanize v1.0.1
+## explicit; go 1.16
+# github.com/envoyproxy/go-control-plane v0.13.0
+## explicit; go 1.21
+# github.com/envoyproxy/protoc-gen-validate v1.1.0
+## explicit; go 1.19
+# github.com/ettle/strcase v0.1.1
+## explicit; go 1.12
+# github.com/fatih/color v1.15.0
+## explicit; go 1.17
+# github.com/felixge/httpsnoop v1.0.4
+## explicit; go 1.13
+github.com/felixge/httpsnoop
+# github.com/fogleman/gg v1.3.0
+## explicit
+# github.com/fsnotify/fsnotify v1.4.9
+## explicit; go 1.13
+# github.com/ghodss/yaml v1.0.0
+## explicit
+github.com/ghodss/yaml
+# github.com/go-fonts/dejavu v0.1.0
+## explicit; go 1.13
+# github.com/go-fonts/latin-modern v0.2.0
+## explicit; go 1.13
+# github.com/go-fonts/liberation v0.2.0
+## explicit; go 1.13
+# github.com/go-fonts/stix v0.1.0
+## explicit; go 1.13
+# github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1
+## explicit
+# github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4
+## explicit; go 1.10
+# github.com/go-latex/latex v0.0.0-20210823091927-c0d11ff05a81
+## explicit; go 1.16
+# github.com/go-logr/logr v1.4.2
+## explicit; go 1.18
+# github.com/go-logr/stdr v1.2.2
+## explicit; go 1.16
+# github.com/go-pdf/fpdf v0.6.0
+## explicit; go 1.16
+# github.com/go-playground/assert/v2 v2.0.1
+## explicit; go 1.13
+# github.com/go-playground/locales v0.13.0
+## explicit; go 1.13
+# github.com/go-playground/universal-translator v0.17.0
+## explicit; go 1.13
+# github.com/go-playground/validator/v10 v10.4.1
+## explicit; go 1.13
+# github.com/gobuffalo/logger v1.0.6
+## explicit; go 1.13
+github.com/gobuffalo/logger
+# github.com/gobuffalo/packd v1.0.1
+## explicit; go 1.13
+github.com/gobuffalo/packd
+github.com/gobuffalo/packd/internal/takeon/github.com/markbates/errx
+# github.com/gobuffalo/packr/v2 v2.8.3
+## explicit; go 1.16
+github.com/gobuffalo/packr/v2
+github.com/gobuffalo/packr/v2/file
+github.com/gobuffalo/packr/v2/file/resolver
+github.com/gobuffalo/packr/v2/file/resolver/encoding/hex
+github.com/gobuffalo/packr/v2/jam/parser
+github.com/gobuffalo/packr/v2/plog
+# github.com/goccy/go-json v0.10.2
+## explicit; go 1.12
+# github.com/goccy/go-yaml v1.11.0
+## explicit; go 1.18
+# github.com/godbus/dbus/v5 v5.0.4
+## explicit; go 1.12
+# github.com/gogo/protobuf v1.3.2
+## explicit; go 1.15
+# github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
+## explicit
+# github.com/golang/glog v1.2.2
+## explicit; go 1.19
 github.com/golang/glog
-# github.com/golang/protobuf v0.0.0-20161117033126-8ee79997227b
+github.com/golang/glog/internal/logsink
+github.com/golang/glog/internal/stackdump
+# github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
+## explicit
+# github.com/golang/mock v1.6.0
+## explicit; go 1.11
+# github.com/golang/protobuf v1.5.4
+## explicit; go 1.17
+github.com/golang/protobuf/jsonpb
 github.com/golang/protobuf/proto
 github.com/golang/protobuf/protoc-gen-go/descriptor
 github.com/golang/protobuf/protoc-gen-go/generator
+github.com/golang/protobuf/protoc-gen-go/generator/internal/remap
 github.com/golang/protobuf/protoc-gen-go/plugin
-# github.com/gorilla/context v0.0.0-20160226214623-1ea25387ff6f
-github.com/gorilla/context
-# github.com/gorilla/handlers v0.0.0-20161028133215-e1b2144f2167
+# github.com/golang/snappy v0.0.4
+## explicit
+# github.com/google/btree v1.1.3
+## explicit; go 1.18
+# github.com/google/flatbuffers v23.5.26+incompatible
+## explicit
+# github.com/google/go-cmp v0.6.0
+## explicit; go 1.13
+# github.com/google/go-pkcs11 v0.3.0
+## explicit; go 1.17
+# github.com/google/gofuzz v1.0.0
+## explicit; go 1.12
+# github.com/google/martian v2.1.0+incompatible
+## explicit
+# github.com/google/martian/v3 v3.3.3
+## explicit; go 1.18
+# github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26
+## explicit; go 1.18
+# github.com/google/renameio v0.1.0
+## explicit
+# github.com/google/s2a-go v0.1.8
+## explicit; go 1.20
+# github.com/google/uuid v1.6.0
+## explicit
+github.com/google/uuid
+# github.com/googleapis/cloud-bigtable-clients-test v0.0.2
+## explicit; go 1.19
+# github.com/googleapis/enterprise-certificate-proxy v0.3.4
+## explicit; go 1.19
+# github.com/googleapis/gax-go/v2 v2.14.0
+## explicit; go 1.21
+# github.com/googleapis/go-type-adapters v1.0.0
+## explicit; go 1.11
+# github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8
+## explicit; go 1.11
+# github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1
+## explicit
+# github.com/gorilla/handlers v1.5.2
+## explicit; go 1.20
 github.com/gorilla/handlers
-# github.com/gorilla/mux v1.5.0
+# github.com/gorilla/mux v1.8.1
+## explicit; go 1.20
 github.com/gorilla/mux
-# github.com/grpc-ecosystem/grpc-gateway v1.2.2
+# github.com/grpc-ecosystem/grpc-gateway v1.16.0
+## explicit; go 1.14
+github.com/grpc-ecosystem/grpc-gateway/internal/casing
 github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor
 github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/httprule
 github.com/grpc-ecosystem/grpc-gateway/utilities
-# github.com/huandu/xstrings v0.0.0-20151130125119-3959339b3335
+# github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0
+## explicit; go 1.17
+# github.com/hamba/avro/v2 v2.17.2
+## explicit; go 1.19
+# github.com/hashicorp/consul/api v1.1.0
+## explicit; go 1.12
+# github.com/hashicorp/consul/sdk v0.1.1
+## explicit; go 1.12
+# github.com/hashicorp/errwrap v1.0.0
+## explicit
+# github.com/hashicorp/go-cleanhttp v0.5.1
+## explicit
+# github.com/hashicorp/go-immutable-radix v1.0.0
+## explicit
+# github.com/hashicorp/go-msgpack v0.5.3
+## explicit
+# github.com/hashicorp/go-multierror v1.0.0
+## explicit
+# github.com/hashicorp/go-rootcerts v1.0.0
+## explicit
+# github.com/hashicorp/go-sockaddr v1.0.0
+## explicit
+# github.com/hashicorp/go-syslog v1.0.0
+## explicit
+# github.com/hashicorp/go-uuid v1.0.1
+## explicit
+# github.com/hashicorp/go.net v0.0.1
+## explicit
+# github.com/hashicorp/golang-lru v0.5.1
+## explicit
+# github.com/hashicorp/hcl v1.0.0
+## explicit
+# github.com/hashicorp/logutils v1.0.0
+## explicit
+# github.com/hashicorp/mdns v1.0.0
+## explicit
+# github.com/hashicorp/memberlist v0.1.3
+## explicit
+# github.com/hashicorp/serf v0.8.2
+## explicit
+# github.com/hexops/gotextdiff v1.0.3
+## explicit; go 1.16
+# github.com/huandu/xstrings v1.5.0
+## explicit; go 1.12
 github.com/huandu/xstrings
-# github.com/imdario/mergo v0.0.0-20171009183408-7fe0c75c13ab
+# github.com/iancoleman/strcase v0.3.0
+## explicit; go 1.16
+# github.com/ianlancetaylor/demangle v0.0.0-20220319035150-800ac71e25c2
+## explicit; go 1.12
+# github.com/imdario/mergo v0.3.8
+## explicit
 github.com/imdario/mergo
-# github.com/satori/go.uuid v1.1.0
-github.com/satori/go.uuid
-# golang.org/x/crypto v0.0.0-20170516161655-0fe963104e9d
-golang.org/x/crypto/scrypt
+# github.com/inconshreveable/mousetrap v1.0.0
+## explicit
+# github.com/json-iterator/go v1.1.12
+## explicit; go 1.12
+# github.com/jstemmer/go-junit-report v0.9.1
+## explicit; go 1.2
+# github.com/jtolds/gls v4.20.0+incompatible
+## explicit
+# github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5
+## explicit
+# github.com/karrick/godirwalk v1.16.1
+## explicit; go 1.13
+github.com/karrick/godirwalk
+# github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
+## explicit
+# github.com/kisielk/errcheck v1.5.0
+## explicit; go 1.14
+# github.com/kisielk/gotool v1.0.0
+## explicit
+# github.com/klauspost/asmfmt v1.3.2
+## explicit; go 1.16
+# github.com/klauspost/compress v1.16.7
+## explicit; go 1.18
+# github.com/klauspost/cpuid/v2 v2.2.5
+## explicit; go 1.15
+# github.com/kr/fs v0.1.0
+## explicit
+# github.com/kr/pretty v0.3.1
+## explicit; go 1.12
+# github.com/kr/pty v1.1.1
+## explicit
+# github.com/kr/text v0.2.0
+## explicit
+# github.com/leodido/go-urn v1.2.0
+## explicit; go 1.13
+# github.com/lyft/protoc-gen-star v0.6.1
+## explicit; go 1.14
+# github.com/lyft/protoc-gen-star/v2 v2.0.4-0.20230330145011-496ad1ac90a4
+## explicit; go 1.17
+# github.com/magiconair/properties v1.8.5
+## explicit; go 1.13
+# github.com/markbates/errx v1.1.0
+## explicit; go 1.12
+github.com/markbates/errx
+# github.com/markbates/oncer v1.0.0
+## explicit; go 1.12
+github.com/markbates/oncer
+# github.com/markbates/safe v1.0.1
+## explicit
+github.com/markbates/safe
+# github.com/mattn/go-colorable v0.1.13
+## explicit; go 1.15
+# github.com/mattn/go-isatty v0.0.19
+## explicit; go 1.15
+# github.com/mattn/go-sqlite3 v1.14.16
+## explicit; go 1.16
+# github.com/miekg/dns v1.0.14
+## explicit
+# github.com/minio/asm2plan9s v0.0.0-20200509001527-cdd76441f9d8
+## explicit
+# github.com/minio/c2goasm v0.0.0-20190812172519-36a3d3bbc4f3
+## explicit
+# github.com/mitchellh/cli v1.0.0
+## explicit
+# github.com/mitchellh/copystructure v1.0.0
+## explicit
+github.com/mitchellh/copystructure
+# github.com/mitchellh/go-homedir v1.0.0
+## explicit
+# github.com/mitchellh/go-testing-interface v1.0.0
+## explicit
+# github.com/mitchellh/gox v0.4.0
+## explicit
+# github.com/mitchellh/iochan v1.0.0
+## explicit
+# github.com/mitchellh/mapstructure v1.5.0
+## explicit; go 1.14
+# github.com/mitchellh/reflectwalk v1.0.1
+## explicit
+github.com/mitchellh/reflectwalk
+# github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd
+## explicit
+# github.com/modern-go/reflect2 v1.0.2
+## explicit; go 1.12
+# github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c
+## explicit
+# github.com/pelletier/go-toml v1.9.3
+## explicit; go 1.12
+# github.com/phpdave11/gofpdf v1.4.2
+## explicit; go 1.12
+# github.com/phpdave11/gofpdi v1.0.13
+## explicit; go 1.12
+# github.com/pierrec/lz4/v4 v4.1.18
+## explicit; go 1.14
+# github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e
+## explicit; go 1.15
+# github.com/pkg/errors v0.9.1
+## explicit
+# github.com/pkg/sftp v1.13.1
+## explicit; go 1.15
+# github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10
+## explicit; go 1.20
+# github.com/pmezard/go-difflib v1.0.0
+## explicit
+# github.com/posener/complete v1.1.1
+## explicit
+# github.com/prometheus/client_model v0.6.0
+## explicit; go 1.19
+# github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec
+## explicit; go 1.12
+# github.com/rogpeppe/fastuuid v1.2.0
+## explicit; go 1.12
+# github.com/rogpeppe/go-internal v1.12.0
+## explicit; go 1.20
+# github.com/russross/blackfriday/v2 v2.0.1
+## explicit
+# github.com/ruudk/golang-pdf417 v0.0.0-20201230142125-a7e3863a1245
+## explicit; go 1.15
+# github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f
+## explicit
+# github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529
+## explicit
+# github.com/shurcooL/sanitized_anchor_name v1.0.0
+## explicit
+# github.com/sirupsen/logrus v1.8.1
+## explicit; go 1.13
+github.com/sirupsen/logrus
+# github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d
+## explicit
+# github.com/smartystreets/goconvey v1.6.4
+## explicit
+# github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72
+## explicit
+# github.com/spf13/afero v1.10.0
+## explicit; go 1.16
+# github.com/spf13/cast v1.3.1
+## explicit
+# github.com/spf13/cobra v1.2.1
+## explicit; go 1.14
+# github.com/spf13/jwalterweatherman v1.1.0
+## explicit
+# github.com/spf13/pflag v1.0.5
+## explicit; go 1.12
+# github.com/spf13/viper v1.8.1
+## explicit; go 1.12
+# github.com/stoewer/go-strcase v1.3.0
+## explicit; go 1.11
+# github.com/stretchr/objx v0.5.2
+## explicit; go 1.20
+# github.com/stretchr/testify v1.9.0
+## explicit; go 1.17
+# github.com/subosito/gotenv v1.2.0
+## explicit
+# github.com/substrait-io/substrait-go v0.4.2
+## explicit; go 1.18
+# github.com/tidwall/gjson v1.14.2
+## explicit; go 1.12
+# github.com/tidwall/match v1.1.1
+## explicit; go 1.15
+# github.com/tidwall/pretty v1.2.0
+## explicit; go 1.16
+# github.com/tidwall/sjson v1.2.5
+## explicit; go 1.14
+# github.com/yuin/goldmark v1.4.13
+## explicit; go 1.18
+# github.com/zeebo/assert v1.3.0
+## explicit; go 1.13
+# github.com/zeebo/xxh3 v1.0.2
+## explicit; go 1.17
+# go.einride.tech/aip v0.68.0
+## explicit; go 1.21
+# go.etcd.io/etcd/api/v3 v3.5.0
+## explicit; go 1.16
+# go.etcd.io/etcd/client/pkg/v3 v3.5.0
+## explicit; go 1.16
+# go.etcd.io/etcd/client/v2 v2.305.0
+## explicit; go 1.16
+# go.opencensus.io v0.24.0
+## explicit; go 1.13
+# go.opentelemetry.io/contrib/detectors/gcp v1.29.0
+## explicit; go 1.21
+# go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.54.0
+## explicit; go 1.21
+# go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.54.0
+## explicit; go 1.21
+# go.opentelemetry.io/otel v1.29.0
+## explicit; go 1.21
+# go.opentelemetry.io/otel/metric v1.29.0
+## explicit; go 1.21
+# go.opentelemetry.io/otel/sdk v1.29.0
+## explicit; go 1.21
+# go.opentelemetry.io/otel/sdk/metric v1.29.0
+## explicit; go 1.21
+# go.opentelemetry.io/otel/trace v1.29.0
+## explicit; go 1.21
+# go.opentelemetry.io/proto/otlp v1.0.0
+## explicit; go 1.17
+# go.uber.org/atomic v1.7.0
+## explicit; go 1.13
+# go.uber.org/goleak v1.3.0
+## explicit; go 1.20
+# go.uber.org/multierr v1.6.0
+## explicit; go 1.12
+# go.uber.org/zap v1.17.0
+## explicit; go 1.13
+# golang.org/x/crypto v0.29.0
+## explicit; go 1.20
 golang.org/x/crypto/pbkdf2
-# google.golang.org/genproto v0.0.0-20170517234824-bb3573be0c48
+golang.org/x/crypto/scrypt
+# golang.org/x/exp v0.0.0-20231006140011-7918f672742d
+## explicit; go 1.20
+# golang.org/x/image v0.0.0-20220302094943-723b81ca9867
+## explicit; go 1.12
+# golang.org/x/lint v0.0.0-20210508222113-6edffad5e616
+## explicit; go 1.11
+# golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028
+## explicit; go 1.11
+# golang.org/x/mod v0.20.0
+## explicit; go 1.18
+# golang.org/x/net v0.31.0
+## explicit; go 1.18
+# golang.org/x/oauth2 v0.24.0
+## explicit; go 1.18
+# golang.org/x/sync v0.9.0
+## explicit; go 1.18
+# golang.org/x/sys v0.27.0
+## explicit; go 1.18
+golang.org/x/sys/plan9
+golang.org/x/sys/unix
+golang.org/x/sys/windows
+# golang.org/x/telemetry v0.0.0-20240521205824-bda55230c457
+## explicit; go 1.20
+# golang.org/x/term v0.26.0
+## explicit; go 1.18
+golang.org/x/term
+# golang.org/x/text v0.20.0
+## explicit; go 1.18
+# golang.org/x/time v0.8.0
+## explicit; go 1.18
+# golang.org/x/tools v0.24.0
+## explicit; go 1.19
+# golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da
+## explicit; go 1.18
+# gonum.org/v1/gonum v0.12.0
+## explicit; go 1.18
+# gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0
+## explicit
+# gonum.org/v1/plot v0.10.1
+## explicit; go 1.16
+# google.golang.org/api v0.210.0
+## explicit; go 1.21
+# google.golang.org/appengine v1.6.8
+## explicit; go 1.11
+# google.golang.org/genproto v0.0.0-20241209162323-e6fa225c2576
+## explicit; go 1.21
+# google.golang.org/genproto/googleapis/api v0.0.0-20241206012308-a4fef0638583
+## explicit; go 1.21
+google.golang.org/genproto/googleapis/api
 google.golang.org/genproto/googleapis/api/annotations
+# google.golang.org/genproto/googleapis/bytestream v0.0.0-20241118233622-e639e219e697
+## explicit; go 1.21
+# google.golang.org/genproto/googleapis/rpc v0.0.0-20241206012308-a4fef0638583
+## explicit; go 1.21
+# google.golang.org/grpc v1.67.1
+## explicit; go 1.21
+# google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0
+## explicit; go 1.9
+# google.golang.org/protobuf v1.35.2
+## explicit; go 1.21
+google.golang.org/protobuf/encoding/protojson
+google.golang.org/protobuf/encoding/prototext
+google.golang.org/protobuf/encoding/protowire
+google.golang.org/protobuf/internal/descfmt
+google.golang.org/protobuf/internal/descopts
+google.golang.org/protobuf/internal/detrand
+google.golang.org/protobuf/internal/editiondefaults
+google.golang.org/protobuf/internal/editionssupport
+google.golang.org/protobuf/internal/encoding/defval
+google.golang.org/protobuf/internal/encoding/json
+google.golang.org/protobuf/internal/encoding/messageset
+google.golang.org/protobuf/internal/encoding/tag
+google.golang.org/protobuf/internal/encoding/text
+google.golang.org/protobuf/internal/errors
+google.golang.org/protobuf/internal/filedesc
+google.golang.org/protobuf/internal/filetype
+google.golang.org/protobuf/internal/flags
+google.golang.org/protobuf/internal/genid
+google.golang.org/protobuf/internal/impl
+google.golang.org/protobuf/internal/order
+google.golang.org/protobuf/internal/pragma
+google.golang.org/protobuf/internal/set
+google.golang.org/protobuf/internal/strs
+google.golang.org/protobuf/internal/version
+google.golang.org/protobuf/proto
+google.golang.org/protobuf/reflect/protodesc
+google.golang.org/protobuf/reflect/protoreflect
+google.golang.org/protobuf/reflect/protoregistry
+google.golang.org/protobuf/runtime/protoiface
+google.golang.org/protobuf/runtime/protoimpl
+google.golang.org/protobuf/types/descriptorpb
+google.golang.org/protobuf/types/gofeaturespb
+google.golang.org/protobuf/types/known/durationpb
+google.golang.org/protobuf/types/pluginpb
+# gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c
+## explicit; go 1.11
+# gopkg.in/errgo.v2 v2.1.0
+## explicit
+# gopkg.in/ini.v1 v1.62.0
+## explicit
+# gopkg.in/yaml.v2 v2.4.0
+## explicit; go 1.15
+gopkg.in/yaml.v2
+# gopkg.in/yaml.v3 v3.0.1
+## explicit
+# gotest.tools/v3 v3.5.1
+## explicit; go 1.17
+# honnef.co/go/tools v0.1.3
+## explicit; go 1.14
+# lukechampine.com/uint128 v1.3.0
+## explicit; go 1.12
+# modernc.org/cc/v3 v3.40.0
+## explicit; go 1.17
+# modernc.org/ccgo/v3 v3.16.13
+## explicit; go 1.17
+# modernc.org/ccorpus v1.11.6
+## explicit; go 1.16
+# modernc.org/httpfs v1.0.6
+## explicit; go 1.15
+# modernc.org/libc v1.22.4
+## explicit; go 1.18
+# modernc.org/mathutil v1.5.0
+## explicit; go 1.13
+# modernc.org/memory v1.5.0
+## explicit; go 1.18
+# modernc.org/opt v0.1.3
+## explicit; go 1.13
+# modernc.org/sqlite v1.21.2
+## explicit; go 1.18
+# modernc.org/strutil v1.1.3
+## explicit; go 1.18
+# modernc.org/tcl v1.15.1
+## explicit; go 1.17
+# modernc.org/token v1.1.0
+## explicit
+# modernc.org/z v1.7.0
+## explicit; go 1.17
+# rsc.io/binaryregexp v0.2.0
+## explicit; go 1.12
+# rsc.io/pdf v0.1.1
+## explicit
+# rsc.io/quote/v3 v3.1.0
+## explicit
+# rsc.io/sampler v1.3.0
+## explicit