134 lines
4.7 KiB
Python
134 lines
4.7 KiB
Python
# Copyright (c) 2014 OpenStack Foundation.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
import re
|
|
|
|
"""
|
|
Guidelines for writing new hacking checks
|
|
|
|
- Use only for Cinder specific tests. OpenStack general tests
|
|
should be submitted to the common 'hacking' module.
|
|
- Pick numbers in the range N3xx. Find the current test with
|
|
the highest allocated number and then pick the next value.
|
|
- Keep the test method code in the source file ordered based
|
|
on the N3xx value.
|
|
- List the new rule in the top level HACKING.rst file
|
|
- Add test cases for each new rule to
|
|
cinder/tests/test_hacking.py
|
|
|
|
"""
|
|
|
|
UNDERSCORE_IMPORT_FILES = []
|
|
|
|
translated_log = re.compile(
|
|
r"(.)*LOG\.(audit|error|info|warn|warning|critical|exception)"
|
|
"\(\s*_\(\s*('|\")")
|
|
string_translation = re.compile(r"(.)*_\(\s*('|\")")
|
|
vi_header_re = re.compile(r"^#\s+vim?:.+")
|
|
underscore_import_check = re.compile(r"(.)*i18n\s+import\s+_(.)*")
|
|
# We need this for cases where they have created their own _ function.
|
|
custom_underscore_check = re.compile(r"(.)*_\s*=\s*(.)*")
|
|
no_audit_log = re.compile(r"(.)*LOG\.audit(.)*")
|
|
|
|
|
|
def no_vi_headers(physical_line, line_number, lines):
|
|
"""Check for vi editor configuration in source files.
|
|
|
|
By default vi modelines can only appear in the first or
|
|
last 5 lines of a source file.
|
|
|
|
N314
|
|
"""
|
|
# NOTE(gilliard): line_number is 1-indexed
|
|
if line_number <= 5 or line_number > len(lines) - 5:
|
|
if vi_header_re.match(physical_line):
|
|
return 0, "N314: Don't put vi configuration in source files"
|
|
|
|
|
|
def no_translate_debug_logs(logical_line, filename):
|
|
"""Check for 'LOG.debug(_('
|
|
|
|
As per our translation policy,
|
|
https://wiki.openstack.org/wiki/LoggingStandards#Log_Translation
|
|
we shouldn't translate debug level logs.
|
|
|
|
* This check assumes that 'LOG' is a logger.
|
|
* Use filename so we can start enforcing this in specific folders instead
|
|
of needing to do so all at once.
|
|
N319
|
|
"""
|
|
if logical_line.startswith("LOG.debug(_("):
|
|
yield(0, "N319 Don't translate debug level logs")
|
|
|
|
|
|
def no_mutable_default_args(logical_line):
|
|
msg = "N322: Method's default argument shouldn't be mutable!"
|
|
mutable_default_args = re.compile(r"^\s*def .+\((.+=\{\}|.+=\[\])")
|
|
if mutable_default_args.match(logical_line):
|
|
yield (0, msg)
|
|
|
|
|
|
def check_explicit_underscore_import(logical_line, filename):
|
|
"""Check for explicit import of the _ function
|
|
|
|
We need to ensure that any files that are using the _() function
|
|
to translate logs are explicitly importing the _ function. We
|
|
can't trust unit test to catch whether the import has been
|
|
added so we need to check for it here.
|
|
"""
|
|
|
|
# Build a list of the files that have _ imported. No further
|
|
# checking needed once it is found.
|
|
if filename in UNDERSCORE_IMPORT_FILES:
|
|
pass
|
|
elif (underscore_import_check.match(logical_line) or
|
|
custom_underscore_check.match(logical_line)):
|
|
UNDERSCORE_IMPORT_FILES.append(filename)
|
|
elif(translated_log.match(logical_line) or
|
|
string_translation.match(logical_line)):
|
|
yield(0, "N323: Found use of _() without explicit import of _ !")
|
|
|
|
|
|
def check_no_log_audit(logical_line):
|
|
"""Ensure that we are not using LOG.audit messages
|
|
|
|
Plans are in place going forward as discussed in the following
|
|
spec (https://review.openstack.org/#/c/91446/) to take out
|
|
LOG.audit messages. Given that audit was a concept invented
|
|
for OpenStack we can enforce not using it.
|
|
"""
|
|
|
|
if no_audit_log.match(logical_line):
|
|
yield(0, "N324: Found LOG.audit. Use LOG.info instead.")
|
|
|
|
|
|
def check_assert_called_once(logical_line, filename):
|
|
msg = ("N327: assert_called_once is a no-op. please use assert_called_"
|
|
"once_with to test with explicit parameters or an assertEqual with"
|
|
" call_count.")
|
|
|
|
if 'cinder/tests/' in filename:
|
|
pos = logical_line.find('.assert_called_once(')
|
|
if pos != -1:
|
|
yield (pos, msg)
|
|
|
|
|
|
def factory(register):
|
|
register(no_vi_headers)
|
|
register(no_translate_debug_logs)
|
|
register(no_mutable_default_args)
|
|
register(check_explicit_underscore_import)
|
|
register(check_no_log_audit)
|
|
register(check_assert_called_once)
|