use goreleaser and new help

.github/workflows/release.yml

@@ -1,37 +1,34 @@
 # workflow name
-name: release
+name: goreleaser
+
+
+
 
 # on events
 on:
-  release:
-    types:
-      - created
+  push:
+    tags:
+      - '*'
 
-# jobs
 jobs:
-  # generate build cross-platform build files
-  generate:
-    name: Generate cross-platform builds
+  goreleaser:
     runs-on: ubuntu-latest
     steps:
-      # step 1: checkout repository code
-      - name: Checkout the repository
+      -
+        name: Checkout
         uses: actions/checkout@v2
-
-      # step 2: generate build files
-      - name: Generate build files
-        uses: thatisuday/go-build-action@v1
         with:
-          platforms: "linux/amd64, darwin/amd64, windows/amd64"
-          package: ""
-          name: "urlencode"
-          compress: "true"
-          dest: "dist"
-
-      # step 3: upload build-artifacts
-      - name: Upload build-artifacts
-        uses: skx/github-action-publish-binaries@master
+          fetch-depth: 0
+      -
+        name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.15
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          args: "./dist/*.tar.gz"

.gitignore

@@ -1 +1,2 @@
 *.exe
+dist

.goreleaser.yml

@@ -0,0 +1,37 @@
+# This is an example goreleaser.yaml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+before:
+  hooks:
+    # You may remove this if you don't use go modules.
+    - go mod download
+    # you may remove this if you don't need go generate
+    - go generate ./...
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+    ldflags:
+     - -s -w -X main.version={{.Version}}
+archives:
+  - replacements:
+      darwin: MacOS
+      linux: Linux
+      windows: Windows
+      386: 32bit
+      amd64: 64bit
+    format_overrides:
+      - goos: windows
+        format: zip
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'

main.go

@@ -2,12 +2,15 @@ package main
 
 import (
     "flag"
+    "fmt"
     "io/ioutil"
     "net/url"
     "os"
     "strings"
 )
 
+var version string = "--"
+
 func restoreSpaces(s string) string {
     return strings.ReplaceAll(strings.ReplaceAll(s, "%20", " "), "+", " ")
 }
@@ -18,6 +21,13 @@ func main() {
     keepSpaces := flag.Bool("keep-spaces", false, "keep spaces as they are")
     usePathEscape := flag.Bool("path-escape", false, "use PathEscape in place of QueryEscape")
     trimSpaces := flag.Bool("trim", false, "trim (from both sides) spaces and new lines")
+    // Help message
+    flag.Usage = func() {
+        fmt.Fprintf(os.Stderr, "urlencode (version: %s, executable: %s)\n\n", version, os.Args[0])
+        fmt.Fprintf(os.Stderr, "This program is a thin wrapper around the standard go url escape functions.\nAvailable flgs:\n\n")
+        flag.PrintDefaults()
+        fmt.Fprintf(os.Stderr, "\n")
+    }
     // parse flags
     flag.Parse()