package commands import ( "github.com/spf13/cobra" ) func newLsLabelCommand() *cobra.Command { env := newEnv() cmd := &cobra.Command{ Use: "ls-label", Short: "List valid labels.", Long: `List valid labels. Note: in the future, a proper label policy could be implemented where valid labels are defined in a configuration file. Until that, the default behavior is to return the list of labels already used.`, PreRunE: loadBackend(env), RunE: closeBackend(env, func(cmd *cobra.Command, args []string) error { return runLsLabel(env) }), } return cmd } func runLsLabel(env *Env) error { labels := env.backend.ValidLabels() for _, l := range labels { env.out.Println(l) } return nil }