Merge pull request #1495 from rsteube/bridge-yargs

added yargs bridge

completers/git_completer/cmd/diff.go

@@ -19,6 +19,7 @@ func init() {
 	carapace.Gen(diffCmd).Standalone()
 
 	addDiffFlags(diffCmd)
+	rootCmd.AddCommand(diffCmd)
 
 	carapace.Gen(diffCmd).PositionalAnyCompletion(
 		carapace.ActionCallback(func(c carapace.Context) carapace.Action {

pkg/actions/bridge/click.go

@@ -26,7 +26,7 @@ import (
 //		carapace.Gen(rootCmd).Standalone()
 //
 //		carapace.Gen(rootCmd).PositionalAnyCompletion(
-//			argcomplete.ActionClick("watson"),
+//			bridge.ActionClick("watson"),
 //		)
 //	}
 func ActionClick(command string) carapace.Action {

pkg/actions/bridge/yargs.go

@@ -0,0 +1,61 @@
+package bridge
+
+import (
+	"os/exec"
+	"strings"
+
+	"github.com/rsteube/carapace"
+)
+
+// ActionYargs bridges https://github.com/yargs/yargs
+//
+//	var rootCmd = &cobra.Command{
+//		Use:                "example",
+//		Run:                func(cmd *cobra.Command, args []string) {},
+//		DisableFlagParsing: true,
+//	}
+//
+//	func Execute() error {
+//		return rootCmd.Execute()
+//	}
+//
+//	func init() {
+//		carapace.Gen(rootCmd).Standalone()
+//
+//		carapace.Gen(rootCmd).PositionalAnyCompletion(
+//			bridge.ActionYargs("example"),
+//		)
+//	}
+func ActionYargs(command string) carapace.Action {
+	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+		if _, err := exec.LookPath(command); err != nil {
+			return carapace.ActionMessage(err.Error())
+		}
+
+		args := c.Args
+		current := c.CallbackValue
+
+		compLine := strings.Join(append(args, current), " ") // TODO escape/quote special characters
+		return carapace.ActionExecCommand(command, "--get-yargs-completions", compLine)(func(output []byte) carapace.Action {
+			lines := strings.Split(string(output), "\n")
+
+			vals := make([]string, 0)
+			for _, line := range lines {
+				if line != "" {
+					line = strings.Replace(line, `\:`, "\001", 1)
+					splitted := strings.SplitN(line, ":", 2)
+					name := strings.Replace(splitted[0], "\001", `\:`, 1)
+					description := ""
+					if len(splitted) > 1 {
+						description = strings.Replace(splitted[1], "\001", `\:`, 1)
+					}
+					vals = append(vals, name, description)
+				}
+			}
+			if len(vals) == 0 {
+				return carapace.ActionFiles()
+			}
+			return carapace.ActionValuesDescribed(vals...)
+		}).Invoke(c).ToA()
+	})
+}