From 5bc8a878dc1a2b76780a9c55c2f5cfd86297736c Mon Sep 17 00:00:00 2001
From: Disassembler <disassembler@dasm.cz>
Date: Sun, 11 Jul 2021 15:39:14 +0200
Subject: [PATCH] Treat empty CLI args as error and show usage

---
 src/spoc_cli.py   | 3 +--
 tests/test_cli.py | 1 +
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/spoc_cli.py b/src/spoc_cli.py
index 0311ba4..bb68423 100644
--- a/src/spoc_cli.py
+++ b/src/spoc_cli.py
@@ -79,8 +79,7 @@ def prune():
 
 def parse_args(args=None):
     parser = argparse.ArgumentParser(description='SPOC application manager')
-    parser.set_defaults(action=None)
-    subparsers = parser.add_subparsers()
+    subparsers = parser.add_subparsers(dest='action', required=True)
 
     parser_list = subparsers.add_parser('list')
     parser_list.set_defaults(action=listing)
diff --git a/tests/test_cli.py b/tests/test_cli.py
index cad1e7b..83efc33 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -317,6 +317,7 @@ def test_main_invalid(prune, login, stop_all, start_autostarted, status, stop, s
     ['autostart', 'someapp'],
     ['login'],
     ['invalid'],
+    [],
 ])
 def test_main_systemexit(argv):
     argv.insert(0, 'foo')