Limit argument range for --verbose, make default log level more explicit. (#93)

borgmatic/commands/borgmatic.py

@@ -92,6 +92,8 @@ def parse_arguments(*arguments):
     parser.add_argument(
         '-v', '--verbosity',
         type=int,
+        choices=range(0,3),
+        default=0,
         help='Display verbose progress (1 for some, 2 for lots)',
     )
 

borgmatic/tests/integration/commands/test_borgmatic.py

@@ -14,7 +14,7 @@ def test_parse_arguments_with_no_arguments_uses_defaults():
 
     assert parser.config_paths == config_paths
     assert parser.excludes_filename == None
-    assert parser.verbosity is None
+    assert parser.verbosity is 0
     assert parser.json is False
 
 
@@ -25,7 +25,7 @@ def test_parse_arguments_with_path_arguments_overrides_defaults():
 
     assert parser.config_paths == ['myconfig']
     assert parser.excludes_filename == 'myexcludes'
-    assert parser.verbosity is None
+    assert parser.verbosity is 0
 
 
 def test_parse_arguments_with_multiple_config_paths_parses_as_list():
@@ -34,7 +34,7 @@ def test_parse_arguments_with_multiple_config_paths_parses_as_list():
     parser = module.parse_arguments('--config', 'myconfig', 'otherconfig')
 
     assert parser.config_paths == ['myconfig', 'otherconfig']
-    assert parser.verbosity is None
+    assert parser.verbosity is 0
 
 
 def test_parse_arguments_with_verbosity_flag_overrides_default():

borgmatic/verbosity.py

@@ -1,6 +1,7 @@
 import logging
 
 
+VERBOSITY_WARNING = 0
 VERBOSITY_SOME = 1
 VERBOSITY_LOTS = 2
 
@@ -10,6 +11,7 @@ def verbosity_to_log_level(verbosity):
     Given a borgmatic verbosity value, return the corresponding Python log level.
     '''
     return {
+        VERBOSITY_WARNING: logging.WARNING,
         VERBOSITY_SOME: logging.INFO,
         VERBOSITY_LOTS: logging.DEBUG,
     }.get(verbosity, logging.WARNING)