_ = cmd.MarkPersistentFlagRequired("revision")

	return cmd
}

func tagListCommand(ctx cli.Context) *cobra.Command {
	cmd := &cobra.Command{
		Use:     "list",
		Short:   "List existing revision tags",
		Example: "istioctl tag list",
		Aliases: []string{"show"},
		Args: func(cmd *cobra.Command, args []string) error {
			if len(args) != 0 {
				return fmt.Errorf("tag list command does not accept arguments")