From 2992592d052dfa631dff89cdedfc946bda8f46ff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Mon, 13 Aug 2018 10:03:31 +0200
Subject: [PATCH] cli: check if subcommand was provided

---
 nur/__init__.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/nur/__init__.py b/nur/__init__.py
index e5b0b7127..596715207 100644
--- a/nur/__init__.py
+++ b/nur/__init__.py
@@ -29,7 +29,14 @@ def parse_arguments(argv: List[str]) -> argparse.Namespace:
     index = subparsers.add_parser("index")
     index.set_defaults(func=index_command)
 
-    return parser.parse_args(argv[1:])
+    args = parser.parse_args(argv[1:])
+
+    if not hasattr(args, "func"):
+        print("subcommand is missing", file=sys.stderr)
+        parser.print_help(sys.stderr)
+        sys.exit(1)
+
+    return args
 
 
 def main() -> None: