134 lines
4.4 KiB
Python
134 lines
4.4 KiB
Python
# Copyright (c) 2014 OpenStack Foundation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import re
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import pep8
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"""
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Guidelines for writing new hacking checks
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- Use only for Neutron specific tests. OpenStack general tests
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should be submitted to the common 'hacking' module.
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- Pick numbers in the range N3xx. Find the current test with
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the highest allocated number and then pick the next value.
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- Keep the test method code in the source file ordered based
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on the N3xx value.
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- List the new rule in the top level HACKING.rst file
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- Add test cases for each new rule to
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neutron/tests/unit/test_hacking.py
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"""
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author_tag_re = (re.compile("^\s*#\s*@?(a|A)uthor"),
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re.compile("^\.\.\s+moduleauthor::"))
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_all_hints = set(['_', '_LI', '_LE', '_LW', '_LC'])
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_all_log_levels = {
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# NOTE(yamamoto): Following nova which uses _() for audit.
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'audit': '_',
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'error': '_LE',
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'info': '_LI',
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'warn': '_LW',
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'warning': '_LW',
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'critical': '_LC',
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'exception': '_LE',
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}
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log_translation_hints = []
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for level, hint in _all_log_levels.iteritems():
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r = "(.)*LOG\.%(level)s\(\s*((%(wrong_hints)s)\(|'|\")" % {
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'level': level,
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'wrong_hints': '|'.join(_all_hints - set([hint])),
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}
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log_translation_hints.append(re.compile(r))
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def validate_log_translations(logical_line, physical_line, filename):
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# Translations are not required in the test directory
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if "neutron/tests" in filename:
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return
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if pep8.noqa(physical_line):
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return
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msg = "N320: Log messages require translation hints!"
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for log_translation_hint in log_translation_hints:
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if log_translation_hint.match(logical_line):
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yield (0, msg)
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def use_jsonutils(logical_line, filename):
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msg = "N321: jsonutils.%(fun)s must be used instead of json.%(fun)s"
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# Some files in the tree are not meant to be run from inside Neutron
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# itself, so we should not complain about them not using jsonutils
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json_check_skipped_patterns = [
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"neutron/plugins/openvswitch/agent/xenapi/etc/xapi.d/plugins/netwrap",
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]
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for pattern in json_check_skipped_patterns:
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if pattern in filename:
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return
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if "json." in logical_line:
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json_funcs = ['dumps(', 'dump(', 'loads(', 'load(']
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for f in json_funcs:
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pos = logical_line.find('json.%s' % f)
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if pos != -1:
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yield (pos, msg % {'fun': f[:-1]})
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def no_author_tags(physical_line):
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for regex in author_tag_re:
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if regex.match(physical_line):
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physical_line = physical_line.lower()
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pos = physical_line.find('moduleauthor')
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if pos < 0:
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pos = physical_line.find('author')
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return pos, "N322: Don't use author tags"
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def no_translate_debug_logs(logical_line, filename):
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"""Check for 'LOG.debug(_(' and 'LOG.debug(_Lx('
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As per our translation policy,
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https://wiki.openstack.org/wiki/LoggingStandards#Log_Translation
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we shouldn't translate debug level logs.
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* This check assumes that 'LOG' is a logger.
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N319
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"""
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for hint in _all_hints:
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if logical_line.startswith("LOG.debug(%s(" % hint):
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yield(0, "N319 Don't translate debug level logs")
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def check_assert_called_once_with(logical_line, filename):
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# Try to detect unintended calls of nonexistent mock methods like:
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# assert_called_once
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# assertCalledOnceWith
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if 'neutron/tests/' in filename:
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if '.assert_called_once_with(' in logical_line:
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return
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if '.assertcalledonce' in logical_line.lower().replace('_', ''):
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msg = ("N323: Possible use of no-op mock method. "
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"please use assert_called_once_with.")
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yield (0, msg)
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def factory(register):
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register(validate_log_translations)
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register(use_jsonutils)
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register(no_author_tags)
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register(check_assert_called_once_with)
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register(no_translate_debug_logs)
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