commands: add a "ls-labels" command that output valid labels

1 files changed, 37 insertions, 0 deletions

diff --git a/commands/ls-labels.go b/commands/ls-labels.go
new file mode 100644
index 00000000..49f4c7cb
--- /dev/null
+++ b/commands/ls-labels.go
@@ -0,0 +1,37 @@
+package commands
+
+import (
+	"fmt"
+
+	"github.com/MichaelMure/git-bug/cache"
+	"github.com/spf13/cobra"
+)
+
+func runLsLabel(cmd *cobra.Command, args []string) error {
+	backend, err := cache.NewRepoCache(repo)
+	if err != nil {
+		return err
+	}
+	defer backend.Close()
+
+	labels := backend.ValidLabels()
+
+	for _, l := range labels {
+		fmt.Println(l)
+	}
+
+	return nil
+}
+
+var lsLabelCmd = &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.`,
+	RunE: runLsLabel,
+}
+
+func init() {
+	RootCmd.AddCommand(lsLabelCmd)
+}