cli: use gobuild version handling (#2770)

cmd/headscale/cli/root.go

@@ -71,19 +71,20 @@ func initConfig() {
 
 	disableUpdateCheck := viper.GetBool("disable_check_updates")
 	if !disableUpdateCheck && !machineOutput {
+		versionInfo := types.GetVersionInfo()
 		if (runtime.GOOS == "linux" || runtime.GOOS == "darwin") &&
-			types.Version != "dev" {
+			!versionInfo.Dirty {
 			githubTag := &latest.GithubTag{
 				Owner:      "juanfont",
 				Repository: "headscale",
 			}
-			res, err := latest.Check(githubTag, types.Version)
+			res, err := latest.Check(githubTag, versionInfo.Version)
 			if err == nil && res.Outdated {
 				//nolint
 				log.Warn().Msgf(
 					"An updated version of Headscale has been found (%s vs. your current %s). Check it out https://github.com/juanfont/headscale/releases\n",
 					res.Current,
-					types.Version,
+					versionInfo.Version,
 				)
 			}
 		}

cmd/headscale/cli/version.go

@@ -7,6 +7,7 @@ import (
 
 func init() {
 	rootCmd.AddCommand(versionCmd)
+	versionCmd.Flags().StringP("output", "o", "", "Output format. Empty for human-readable, 'json', 'json-line' or 'yaml'")
 }
 
 var versionCmd = &cobra.Command{
@@ -15,9 +16,9 @@ var versionCmd = &cobra.Command{
 	Long:  "The version of headscale.",
 	Run: func(cmd *cobra.Command, args []string) {
 		output, _ := cmd.Flags().GetString("output")
-		SuccessOutput(map[string]string{
-			"version": types.Version,
-			"commit":  types.GitCommitHash,
-		}, types.Version, output)
+
+		info := types.GetVersionInfo()
+
+		SuccessOutput(info, info.String(), output)
 	},
 }