Add uuidgen command to refresh manifest identifier

cmd/uuidgen.go

@@ -0,0 +1,38 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/pokanop/nostromo/task"
+	"github.com/spf13/cobra"
+)
+
+// uuidgenCmd represents the uuidgen command
+var uuidgenCmd = &cobra.Command{
+	Use:   "uuidgen [name]",
+	Short: "Generate a new unique id for a manifest",
+	Long: `Generate a new unique id for a manifest.
+
+nostromo uses a uuid to determine if a manifest is unique or not.
+When using sync to get new manifests, nostromo will only apply the
+changes if it detects a different identifier.
+
+This command allows regenerating the uuid to allow for publishing
+and pulling updated manifests. Note that using standard nostromo
+commands automatically updates the identifier. This command can be
+used if manual updates were made to a manifest.
+
+Omitting the name of the manifest will apply to the core manifest.`,
+	Args: cobra.MaximumNArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		var name string
+		if len(args) > 0 {
+			name = args[0]
+		}
+		os.Exit(task.RegenerateID(name))
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(uuidgenCmd)
+}

task/task.go

@@ -12,6 +12,7 @@ import (
 	"github.com/pokanop/nostromo/prompt"
 	"github.com/pokanop/nostromo/shell"
 	"github.com/pokanop/nostromo/stringutil"
+	"github.com/pokanop/nostromo/version"
 	"github.com/shivamMg/ppds/tree"
 	"github.com/spf13/cobra"
 )
@@ -592,6 +593,31 @@ func Detach(name string, keyPaths []string, targetKeyPath, description string, k
 	return 0
 }
 
+func RegenerateID(name string) int {
+	cfg := checkConfig()
+	var m *model.Manifest
+	if len(name) > 0 {
+		m = cfg.Spaceport().FindManifest(name)
+		if m == nil {
+			log.Errorf("no manifest named %s exists\n", name)
+			return -1
+		}
+	} else {
+		m = cfg.Spaceport().CoreManifest()
+	}
+
+	v := version.NewInfo(m.Version.SemVer, m.Version.GitCommit, m.Version.BuildDate)
+	m.Version.Update(v)
+
+	err := config.SaveManifest(m, m.IsCore())
+	if err != nil {
+		log.Error(err)
+		return -1
+	}
+
+	return 0
+}
+
 func checkConfigQuiet() *config.Config {
 	return checkConfigCommon(true)
 }