go: run - positional directory completion

completers/go_completer/cmd/run.go

@@ -1,6 +1,8 @@
 package cmd
 
 import (
+	"strings"
+
 	"github.com/carapace-sh/carapace"
 	"github.com/spf13/cobra"
 )
@@ -18,4 +20,13 @@ func init() {
 	runCmd.Flags().StringS("exec", "exec", "", "invoke the binary using xprog")
 	addBuildFlags(runCmd)
 	rootCmd.AddCommand(runCmd)
+
+	carapace.Gen(runCmd).PositionalCompletion(
+		carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			if strings.HasPrefix(c.Value, ".") {
+				return carapace.ActionDirectories()
+			}
+			return carapace.ActionValues()
+		}),
+	)
 }