Add version

Author: stuartleeks

.goreleaser.yml

@@ -10,7 +10,7 @@ builds:
     - amd64
   main: ./cmd/devcontainer/
   ldflags:
-    - -s -w -X main.version={{.Version}} -X main.commit={{.ShortCommit}} -X main.date={{.Date}}
+    - -s -w -X main.version={{.Version}} -X main.commit={{.ShortCommit}} -X main.date={{.Date}} -X "main.goversion={{.Env.GOVERSION}}"
 
 archives:
   - id: zip

cmd/devcontainer/main.go

@@ -4,6 +4,14 @@ import (
 	"github.com/spf13/cobra"
 )
 
+// Overridden via ldflags
+var (
+	version   = "99.0.1-devbuild"
+	commit    = "unknown"
+	date      = "unknown"
+	goversion = "unknown"
+)
+
 func main() {
 
 	rootCmd := &cobra.Command{Use: "devcontainer"}
@@ -13,6 +21,7 @@ func main() {
 	rootCmd.AddCommand(createTemplateCommand())
 	rootCmd.AddCommand(createCompleteCommand(rootCmd))
 	rootCmd.AddCommand(createConfigCommand())
+	rootCmd.AddCommand(createVersionCommand())
 
 	rootCmd.Execute()
 }

cmd/devcontainer/version.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+func createVersionCommand() *cobra.Command {
+
+	var verbose bool
+
+	cmd := &cobra.Command{
+		Use:   "version",
+		Short: "show version",
+		Long:  "Show version",
+		Run: func(cmd *cobra.Command, args []string) {
+			if verbose {
+				fmt.Printf("devcontainer version %s\nBuilt %s (commit %s)\n%s\n\n", version, date, commit, goversion)
+				return
+			}
+			fmt.Println(version)
+		},
+	}
+	cmd.Flags().BoolVarP(&verbose, "verbose", "v", false, "Verbose output")
+
+	return cmd
+}

scripts/ci_release.sh

@@ -21,6 +21,8 @@ fi
 # Set version for release (picked up later by goreleaser)
 git tag -f v0.1.$BUILD_NUMBER
 
+export GOVERSION=$(go version)
+
 if [ -z ${PUBLISH} ]; then
   echo "Running with --skip-publish as PUBLISH not set"
   goreleaser --skip-publish --rm-dist