Fix: --parse/--serialize didn't work from cfg

ht/ #34

bumpversion/__init__.py

@@ -317,10 +317,10 @@ def main(original_args=None):
                          help='Version that needs to be updated', required=False)
     parser2.add_argument('--parse', metavar='REGEX',
                          help='Regex parsing the version string',
-                         default='(?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)')
+                         default=defaults.get("parse", '(?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)'))
     parser2.add_argument('--serialize', metavar='FORMAT',
                          help='How to format what is parsed back to a version',
-                         default='{major}.{minor}.{patch}')
+                         default=defaults.get("serialize", str('{major}.{minor}.{patch}')))
 
     known_args, remaining_argv = parser2.parse_known_args(args)
 

tests.py

@@ -222,6 +222,21 @@ def test_bump_version_custom_parse(tmpdir):
 
     assert 'XXX1;1;0' == tmpdir.join("file6").read()
 
+def test_bump_version_custom_parse_serialize_configfile(tmpdir):
+
+    tmpdir.join("file12").write("ZZZ8;0;0")
+    tmpdir.chdir()
+
+    tmpdir.join(".bumpversion.cfg").write("""[bumpversion]
+files = file12
+current_version = ZZZ8;0;0
+serialize = ZZZ{spam};{garlg};{slurp}
+parse = ZZZ(?P<spam>\d+);(?P<garlg>\d+);(?P<slurp>\d+)
+""")
+
+    main(['garlg'])
+
+    assert 'ZZZ8;1;0' == tmpdir.join("file12").read()
 
 def test_bumpversion_custom_parse_semver(tmpdir):
     tmpdir.join("file15").write("XXX1.1.7-master+allan1")