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#!/usr/bin/env python3
"""
Runs run-clang-tidy. A bit meta. Maybe it will replace run-clang-tidy one day
because the run-clang-tidy UX is so questionable.
"""
# I hereby dedicate this script to fuck you meson.
# I cannot simply write my code to invoke a subprocess in a meson file because
# Meson corrupts backslashes in command line args to subprocesses.
# This is allegedly for "Windows support", but last time I checked Windows
# neither needs nor wants you to corrupt its command lines.
# https://github.com/mesonbuild/meson/issues/1564
import multiprocessing
import subprocess
import os
import sys
from pathlib import Path
def default_concurrency():
return min(multiprocessing.cpu_count(),
int(os.environ.get("NIX_BUILD_CORES", "16")))
def go(exe: str, plugin_path: Path, compile_commands_json_dir: Path, jobs: int,
paths: list[Path], werror: bool, fix: bool):
args = [
# XXX: This explicitly invokes it with python because of a nixpkgs bug
# where clang-unwrapped does not patch interpreters in run-clang-tidy.
# However, making clang-unwrapped depend on python is also silly, so idk.
sys.executable,
exe,
'-quiet',
'-load',
plugin_path,
'-p',
compile_commands_json_dir,
'-j',
str(jobs),
'-header-filter',
r'src/[^/]+/.*\.hh'
]
if werror:
args += ['-warnings-as-errors', '*']
if fix:
args += ['-fix']
args += ['--']
args += paths
os.execvp(sys.executable, args)
def main():
import argparse
ap = argparse.ArgumentParser(description='Runs run-clang-tidy for you')
ap.add_argument('--jobs',
'-j',
type=int,
default=default_concurrency(),
help='Parallel linting jobs to run')
ap.add_argument('--plugin-path',
type=Path,
help='Path to the Lix clang-tidy plugin')
# FIXME: maybe we should integrate this so it just fixes the compdb for you and throws it in a tempdir?
ap.add_argument(
'--compdb-path',
type=Path,
help=
'Path to the directory containing the fixed-up compilation database from clean_compdb'
)
ap.add_argument('--werror',
action='store_true',
help='Warnings get turned into errors')
ap.add_argument('--fix',
action='store_true',
help='Apply fixes for warnings')
ap.add_argument('--run-clang-tidy-path',
default='run-clang-tidy',
help='Path to run-clang-tidy')
ap.add_argument('paths', nargs='*', help='Source paths to check')
args = ap.parse_args()
go(args.run_clang_tidy_path, args.plugin_path, args.compdb_path, args.jobs,
args.paths, args.werror, args.fix)
if __name__ == '__main__':
main()
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