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#!/usr/bin/env python3
# Copyright 2024 Huawei Cloud Computing Technology Co., Ltd.
#
# 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.
#
# Include scanner
# Parse file paths from command's space-separated stdout, select those that
# start with "include/", and copy them to the user-defined output directory.
#
# Usage:
# include_scan OUT_DIR ARGV...
#
# Example:
# ./include_scan.py out gcc -isystem include foo.c -E -M
# -> Generates output directory "out/include" from gcc's output
import subprocess
import sys
import os
import shutil
def include_scan(out_dir: str, cmd: list[str]):
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE)
stdout, _ = proc.communicate()
if not stdout or proc.returncode != 0:
exit(proc.returncode)
items = stdout.decode('utf-8').replace('\n', ' ')
paths = {os.path.normpath(i) for i in items.split(' ')}
includes = {p for p in paths if p.startswith('include/')}
for path in includes:
out_path = os.path.join(out_dir, path)
try:
shutil.copyfile(path, out_path, follow_symlinks=False)
except:
try:
os.makedirs(os.path.dirname(out_path), exist_ok=True)
shutil.copyfile(path, out_path, follow_symlinks=False)
except Exception as e:
print(e, file=sys.stderr)
exit(1)
if __name__ == '__main__':
include_scan(out_dir=sys.argv[1], cmd=sys.argv[2:])
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