Add a help command

1 files changed, 16 insertions, 4 deletions

diff --git a/git-shell-commands.go b/git-shell-commands.go
index d331ef5..2040e23 100644
--- a/git-shell-commands.go
+++ b/git-shell-commands.go
@@ -97,15 +97,27 @@ Delete the git repo named REPO.
 	return nil
 }
 
+func help() {
+	fmt.Printf(`Available commands:
+	create	create a new git repo
+	delete	delete a git repo
+	help	print this message
+`)
+}
+
 func main() {
+	cmd := filepath.Base(os.Args[0])
 	var err error
-	if filepath.Base(os.Args[0]) == "delete" {
-		err = delete()
-	} else {
+	switch cmd {
+	case "create":
 		err = create()
+	case "delete":
+		err = delete()
+	default:
+		help()
 	}
 	if err != nil {
-		fmt.Fprintln(os.Stderr, err)
+		fmt.Fprintf(os.Stderr, "%s\nUse %s -help for usage info\n", err, cmd)
 		os.Exit(1)
 	}
 }