# Copyright 2018 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. import argparse import subprocess import itertools import fnmatch from pathlib import Path from concurrent.futures import ThreadPoolExecutor from ..environment import detect_clangformat from ..compilers import lang_suffixes import typing as T def parse_pattern_file(fname: Path) -> T.List[str]: patterns = [] try: with fname.open(encoding='utf-8') as f: for line in f: pattern = line.strip() if pattern and not pattern.startswith('#'): patterns.append(pattern) except FileNotFoundError: pass return patterns def run_clang_format(exelist: T.List[str], fname: Path, check: bool) -> subprocess.CompletedProcess: before = fname.stat().st_mtime ret = subprocess.run(exelist + ['-style=file', '-i', str(fname)]) after = fname.stat().st_mtime if before != after: print('File reformatted: ', fname) if check: ret.returncode = 1 return ret def clangformat(exelist: T.List[str], srcdir: Path, builddir: Path, check: bool) -> int: patterns = parse_pattern_file(srcdir / '.clang-format-include') if not patterns: patterns = ['**/*'] globs = [srcdir.glob(p) for p in patterns] patterns = parse_pattern_file(srcdir / '.clang-format-ignore') ignore = [str(builddir / '*')] ignore.extend([str(srcdir / p) for p in patterns]) suffixes = set(lang_suffixes['c']).union(set(lang_suffixes['cpp'])) suffixes.add('h') suffixes = set([f'.{s}' for s in suffixes]) futures = [] returncode = 0 with ThreadPoolExecutor() as e: for f in itertools.chain(*globs): strf = str(f) if f.is_dir() or f.suffix not in suffixes or \ any(fnmatch.fnmatch(strf, i) for i in ignore): continue futures.append(e.submit(run_clang_format, exelist, f, check)) returncode = max([x.result().returncode for x in futures]) return returncode def run(args: T.List[str]) -> int: parser = argparse.ArgumentParser() parser.add_argument('--check', action='store_true') parser.add_argument('sourcedir') parser.add_argument('builddir') options = parser.parse_args(args) srcdir = Path(options.sourcedir) builddir = Path(options.builddir) exelist = detect_clangformat() if not exelist: print('Could not execute clang-format "%s"' % ' '.join(exelist)) return 1 return clangformat(exelist, srcdir, builddir, options.check)