e6f2af06e6
This, however, took fixing a pile of lints that we predictably missed because of this bug. Change-Id: I92c36feb4a03f62bc594c2051c7bd7418d13fb08
60 lines
1.9 KiB
Python
Executable file
60 lines
1.9 KiB
Python
Executable file
#!/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 in ['-fpch-preprocess', '-fpch-instantiate-templates']:
|
|
# -fpch-preprocess as used with gcc, -fpch-instantiate-templates as used by clang
|
|
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
|
|
|
|
def cmdfilter(item: dict) -> bool:
|
|
file = item['file']
|
|
return (
|
|
not file.endswith('precompiled-headers.hh')
|
|
and not file.endswith('.rs')
|
|
)
|
|
|
|
return [chomp(x) for x in compdb if cmdfilter(x)]
|
|
|
|
|
|
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()
|