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99 lines
3.5 KiB
99 lines
3.5 KiB
# Copyright 2018 The Meson development team |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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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, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import argparse |
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import subprocess |
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import itertools |
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import fnmatch |
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from pathlib import Path |
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from concurrent.futures import ThreadPoolExecutor |
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from ..environment import detect_clangformat |
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from ..compilers import lang_suffixes |
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from ..mesonlib import Popen_safe |
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import typing as T |
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def parse_pattern_file(fname: Path) -> T.List[str]: |
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patterns = [] |
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try: |
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with fname.open(encoding='utf-8') as f: |
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for line in f: |
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pattern = line.strip() |
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if pattern and not pattern.startswith('#'): |
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patterns.append(pattern) |
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except FileNotFoundError: |
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pass |
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return patterns |
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def run_clang_format(exelist: T.List[str], fname: Path, check: bool) -> subprocess.CompletedProcess: |
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if check: |
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original = fname.read_bytes() |
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before = fname.stat().st_mtime |
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args = ['-style=file', '-i', str(fname)] |
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ret = subprocess.run(exelist + args) |
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after = fname.stat().st_mtime |
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if before != after: |
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print('File reformatted: ', fname) |
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if check: |
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# Restore the original if only checking. |
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fname.write_bytes(original) |
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ret.returncode = 1 |
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return ret |
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def clangformat(exelist: T.List[str], srcdir: Path, builddir: Path, check: bool) -> int: |
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patterns = parse_pattern_file(srcdir / '.clang-format-include') |
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globs: T.Union[T.List[T.List[Path]], T.List[T.Generator[Path, None, None]]] |
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if patterns: |
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globs = [srcdir.glob(p) for p in patterns] |
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else: |
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p, o, _ = Popen_safe(['git', 'ls-files'], cwd=srcdir) |
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if p.returncode == 0: |
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globs = [[Path(srcdir, f) for f in o.splitlines()]] |
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else: |
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globs = [srcdir.glob('**/*')] |
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patterns = parse_pattern_file(srcdir / '.clang-format-ignore') |
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ignore = [str(builddir / '*')] |
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ignore.extend([str(srcdir / p) for p in patterns]) |
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suffixes = set(lang_suffixes['c']).union(set(lang_suffixes['cpp'])) |
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suffixes.add('h') |
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suffixes = {f'.{s}' for s in suffixes} |
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futures = [] |
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returncode = 0 |
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with ThreadPoolExecutor() as e: |
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for f in itertools.chain(*globs): |
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strf = str(f) |
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if f.is_dir() or f.suffix not in suffixes or \ |
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any(fnmatch.fnmatch(strf, i) for i in ignore): |
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continue |
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futures.append(e.submit(run_clang_format, exelist, f, check)) |
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if futures: |
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returncode = max(x.result().returncode for x in futures) |
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return returncode |
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def run(args: T.List[str]) -> int: |
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parser = argparse.ArgumentParser() |
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parser.add_argument('--check', action='store_true') |
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parser.add_argument('sourcedir') |
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parser.add_argument('builddir') |
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options = parser.parse_args(args) |
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srcdir = Path(options.sourcedir) |
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builddir = Path(options.builddir) |
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exelist = detect_clangformat() |
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if not exelist: |
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print('Could not execute clang-format "%s"' % ' '.join(exelist)) |
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return 1 |
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return clangformat(exelist, srcdir, builddir, options.check)
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