Issue 7196 - Centralize flake8 configuration

flake8-eyeo/flake8_eyeo.py

 # This file is part of Adblock Plus <https://adblockplus.org/>,
 # Copyright (C) 2006-present eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ skipping 491 matching lines @@
     def add_options(cls, parser):
         parser.extend_default_ignore([
             # We don't want to make doc strings mandatory
             # but merely lint existing doc strings.
             'D1',
             # Adding a comma after variable args/kwargs
             # is a syntax error in Python 2 (and <= 3.4).
             'C815',
         ])
 
+        # Remove everything but W503 & W504 from the built-in default ignores.
+        parser.parser.defaults['ignore'] = 'W503,W504'
+
 
 for checker in [check_ast, check_non_default_encoding, check_quotes,
                 check_redundant_parenthesis, DefaultConfigOverride]:
     checker.name = 'eyeo'
     checker.version = __version__