diff options
Diffstat (limited to 'meson/clang-tidy/clean_compdb.py')
-rwxr-xr-x | meson/clang-tidy/clean_compdb.py | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/meson/clang-tidy/clean_compdb.py b/meson/clang-tidy/clean_compdb.py new file mode 100755 index 000000000..6736fe63a --- /dev/null +++ b/meson/clang-tidy/clean_compdb.py @@ -0,0 +1,53 @@ +#!/usr/bin/env python3 +# Deletes the PCH arguments from a compilation database, to workaround nixpkgs +# stdenv having a cc-wrapper that is impossible to use for anything except cc +# itself, for example, clang-tidy. + +import json +import shlex + + +def process_compdb(compdb: list[dict]) -> list[dict]: + + def munch_command(args: list[str]) -> list[str]: + out = [] + eat_next = False + for i, arg in enumerate(args): + if arg == '-fpch-preprocess': + # as used with gcc + continue + elif arg == '-include-pch' or (arg == '-include' and args[i + 1] == 'precompiled-headers.hh'): + # -include-pch some-pch (clang), or -include some-pch (gcc) + eat_next = True + continue + if not eat_next: + out.append(arg) + eat_next = False + return out + + def chomp(item: dict) -> dict: + item = item.copy() + item['command'] = shlex.join(munch_command(shlex.split(item['command']))) + return item + + return [chomp(x) for x in compdb if not x['file'].endswith('precompiled-headers.hh')] + + +def main(): + import argparse + ap = argparse.ArgumentParser( + description='Delete pch arguments from compilation database') + ap.add_argument('input', + type=argparse.FileType('r'), + help='Input json file') + ap.add_argument('output', + type=argparse.FileType('w'), + help='Output json file') + args = ap.parse_args() + + input_json = json.load(args.input) + json.dump(process_compdb(input_json), args.output, indent=2) + + +if __name__ == '__main__': + main() |