Merge pull request #2490 from carapace-sh/git-merge-base

git: merge-base

completers/git_completer/cmd/mergeBase.go

@@ -0,0 +1,43 @@
+package cmd
+
+import (
+	"github.com/carapace-sh/carapace"
+	"github.com/carapace-sh/carapace-bin/pkg/actions/tools/git"
+	"github.com/spf13/cobra"
+)
+
+var mergeBaseCmd = &cobra.Command{
+	Use:     "merge-base",
+	Short:   "Find as good common ancestors as possible for a merge",
+	Run:     func(cmd *cobra.Command, args []string) {},
+	GroupID: groups[group_low_level_interrogator].ID,
+}
+
+func init() {
+	carapace.Gen(mergeBaseCmd).Standalone()
+
+	mergeBaseCmd.Flags().BoolP("all", "a", false, "output all merge bases for the commits")
+	mergeBaseCmd.Flags().Bool("fork-point", false, "find the point at which a branch forked from another branch <ref>")
+	mergeBaseCmd.Flags().Bool("independent", false, "print a minimal subset of the supplied commits with the same ancestors")
+	mergeBaseCmd.Flags().Bool("is-ancestor", false, "check if the first <commit> is an ancestor of the second <commit>")
+	mergeBaseCmd.Flags().Bool("octopus", false, "compute the best common ancestors of all supplied commits")
+	rootCmd.AddCommand(mergeBaseCmd)
+
+	mergeBaseCmd.MarkFlagsMutuallyExclusive(
+		"fork-point",
+		"independent",
+		"is-ancestor",
+		"octopus",
+	)
+
+	carapace.Gen(mergeBaseCmd).PositionalAnyCompletion(
+		carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			switch {
+			case mergeBaseCmd.Flag("is-ancestor").Changed && len(c.Args) > 1,
+				mergeBaseCmd.Flag("fork-point").Changed && len(c.Args) > 1:
+				return carapace.ActionValues()
+			}
+			return git.ActionRefs(git.RefOption{}.Default())
+		}),
+	)
+}