Merge pull request #102 from fosslight/develop

Fix not to print argparse's help msg

Author: bjk7119

src/fosslight_prechecker/cli.py

@@ -14,7 +14,7 @@
 
 def main():
     parser = argparse.ArgumentParser(description='FOSSLight Prechecker', prog='fosslight_prechecker', add_help=False)
-    parser.add_argument('mode', nargs='?', help='lint | convert | add', default="")
+    parser.add_argument('mode', nargs='?', help='lint | convert | add', choices=['lint', 'convert', 'add'])
     parser.add_argument('--path', '-p', help='Path to check', type=str, dest='path', default="")
     parser.add_argument('--format', '-f', help='Format of ouput', type=str, dest='format', default="")
     parser.add_argument('--output', '-o', help='Output file name', type=str, dest='output', default="")
@@ -25,11 +25,11 @@ def main():
     parser.add_argument('--ignore', '-i', help='Do not write log to file', action='store_false', dest='log')
     parser.add_argument('--version', '-v', help='Print FOSSLight Prechecker version', action='store_true', dest='version')
     try:
-        args = parser.parse_args()
+        args, unknown = parser.parse_known_args()
     except SystemExit:
         print_help_msg()
 
-    if args.help:
+    if args.help or unknown:
         print_help_msg()
 
     if args.version: