Added XGO cross compilation support for Darwin

cross-compile-xgo.rb

@@ -0,0 +1,41 @@
+#!/usr/bin/env ruby
+
+targets = "darwin/amd64,
+  dragonfly/amd64,
+  freebsd/*,
+  linux/*,
+  netbsd/*,
+  openbsd/*,
+  windows/*"
+
+targets.gsub!(" ","").gsub!("\n","")
+
+version = `git describe --abbrev=0 --tags`.chomp
+diff = `git diff`.chomp
+
+#unless diff.empty?
+#  puts "Forgot to git reset --hard?"
+#  exit if gets.chomp != "n"
+#end
+
+vars = "GO386=387"
+ldflags = "-w -X main.Version=#{version}"
+build = "#{vars} xgo -v --targets=#{targets} -ldflags '#{ldflags}' ."
+puts "Running #{build}"
+#`#{build}`
+
+Dir.glob("syncthing-inotify-*").each do |file|
+  next unless File.file?(file)
+  next if file.include?(".tar.gz")
+  name = "syncthing-inotify"
+  if file.include?("windows")
+    name = "syncthing-inotify.exe"
+  end
+  move = "cp #{file} #{name}"
+  package = "tar -czf #{file}-#{version}.tar.gz #{name}"
+  rm = "rm -f syncthing-inotify"
+  #rm = "rm -f syncthing-inotify #{name}"
+  puts "Packaging #{file}"
+  `#{move} && #{package} 
+  & #{rm}`
+end

cross-compile.rb

@@ -15,7 +15,7 @@
 diff = `git diff`.chomp
 
 unless diff.empty?
-  puts "Forgot to git reset --hard?"
+  puts "Forgot to git reset --hard? (Y/n)"
   exit if gets.chomp != "n"
 end
 
@@ -39,9 +39,14 @@
         vars += " GOARM=5"
       end
       ldflags = "-w -X main.Version=#{version}"
-      build = "#{vars} go build -ldflags '#{ldflags}'"
+      if os.include?("darwin")
+        build = "xgo --targets=darwin/amd64 -ldflags '#{ldflags}' ."
+        build += " && mv syncthing-inotify-darwin-10.6-amd64 #{name}"
+      else
+        build = "#{vars} go build -ldflags '#{ldflags}'"
+      end
       package = "tar -czf syncthing-inotify-#{os}-#{arch}-#{version}.tar.gz #{name}"
-      remove = "rm #{name}"
+      remove = "rm -f #{name}"
       output = `#{build} 2>&1 && #{package} && #{remove}`
       puts output unless output.empty?
       if output.include?("must be bootstrapped") || output.include?("no such tool")