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#!/usr/bin/env python3
# Copyright 2012-2019 The Meson development team
# 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.
# some simple checks on the file format of:
# - python code
# - code samples in tests
# - markdown documentation
#
# checks are:
# - no use of tabs
# - no use of DOS line endings
import os
import re
from pathlib import Path
def check_file(file: Path) -> None:
lines = file.read_bytes().split(b'\n')
tabdetector = re.compile(br' *\t')
for i, line in enumerate(lines):
if re.match(tabdetector, line):
raise SystemExit("File {} contains a tab indent on line {:d}. Only spaces are permitted.".format(file, i + 1))
if line.endswith(b'\r'):
raise SystemExit("File {} contains DOS line ending on line {:d}. Only unix-style line endings are permitted.".format(file, i + 1))
def check_format() -> None:
check_suffixes = {'.c',
'.cpp',
'.cxx',
'.cc',
'.rs',
'.f90',
'.vala',
'.d',
'.s',
'.m',
'.mm',
'.asm',
'.java',
'.txt',
'.py',
'.swift',
'.build',
'.md',
}
skip_dirs = {
'.dub', # external deps are here
'.pytest_cache',
'meson-logs', 'meson-private',
'work area',
'.eggs', '_cache', # e.g. .mypy_cache
'venv', # virtualenvs have DOS line endings
}
for (root, _, filenames) in os.walk('.'):
if any([x in root for x in skip_dirs]):
continue
for fname in filenames:
file = Path(fname)
if file.suffix.lower() in check_suffixes:
if file.name in ('sitemap.txt', 'meson-test-run.txt'):
continue
check_file(root / file)
if __name__ == '__main__':
script_dir = os.path.split(__file__)[0]
if script_dir != '':
os.chdir(script_dir)
check_format()
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