Embed GIT_COMMIT_HASH and output it from version command. (#264)

Author: amit-yb

.gitattributes

@@ -0,0 +1 @@
+/yb-voyager/src/utils/version.go export-subst

yb-voyager/cmd/version.go

@@ -14,14 +14,17 @@ var versionCmd = &cobra.Command{
 
 	Run: func(cmd *cobra.Command, args []string) {
 		fmt.Printf("VERSION=%s\n", utils.YB_VOYAGER_VERSION)
-
+		h := utils.GitCommitHash()
+		if h != "" {
+			fmt.Printf("GIT_COMMIT_HASH=%s\n", h)
+		}
 		info, ok := debug.ReadBuildInfo()
 		if !ok {
 			return
 		}
 		for _, setting := range info.Settings {
 			if setting.Key == "vcs.revision" {
-				fmt.Printf("GIT_HASH=%s\n", setting.Value)
+				fmt.Printf("GIT_COMMIT_HASH=%s\n", setting.Value)
 			}
 			if setting.Key == "vcs.time" {
 				fmt.Printf("LAST_COMMIT_DATE=%s\n", setting.Value)

yb-voyager/src/utils/version.go

@@ -2,5 +2,16 @@ package utils
 
 const (
 	// This constant must be updated on every release.
-	YB_VOYAGER_VERSION = "v1.0.0-beta.0"
+	YB_VOYAGER_VERSION = "main"
+
+	// @Refer: https://icinga.com/blog/2022/05/25/embedding-git-commit-information-in-go-binaries/
+	GIT_COMMIT_HASH = "$Format:%H$"
 )
+
+func GitCommitHash() string {
+	if len(GIT_COMMIT_HASH) == 40 {
+		// Substitution has happened.
+		return GIT_COMMIT_HASH
+	}
+	return ""
+}