Show INFO messages by default and have one option for more: --verbose.

src/pricehist/cli.py

@@ -18,10 +18,8 @@ def cli(args=None, output_file=sys.stdout):
     parser = build_parser()
     args = parser.parse_args()
 
-    if args.debug:
+    if args.verbose:
         logger.show_debug()
-    elif args.verbose:
-        logger.show_info()
 
     logging.debug(f"Began pricehist run at {start_time}.")
 
@@ -118,16 +116,10 @@ def build_parser():
         help="show version information",
     )
 
-    logging_group = parser.add_mutually_exclusive_group(required=False)
-    logging_group.add_argument(
+    parser.add_argument(
         "--verbose",
         action="store_true",
-        help="show INFO messages",
-    )
-    logging_group.add_argument(
-        "--debug",
-        action="store_true",
-        help="show INFO and DEBUG messages",
+        help="show all log messages",
     )
 
     subparsers = parser.add_subparsers(title="commands", dest="command")

src/pricehist/logger.py

@@ -15,12 +15,8 @@ def init():
     handler = logging.StreamHandler(sys.stderr)
     handler.setFormatter(Formatter())
     logging.root.addHandler(handler)
-    logging.root.setLevel(logging.WARNING)
+    logging.root.setLevel(logging.INFO)
 
 
 def show_debug():
     logging.root.setLevel(logging.DEBUG)
-
-
-def show_info():
-    logging.root.setLevel(logging.INFO)