platform_build/tools/warn/warn.py

72 lines
2.3 KiB
Python
Executable File

#!/usr/bin/env python3
#
# Copyright (C) 2019 The Android Open Source Project
#
# 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.
"""Simple wrapper to run warn_common with Python standard Pool."""
import multiprocessing
import signal
import sys
# pylint:disable=relative-beyond-top-level,no-name-in-module
# suppress false positive of no-name-in-module warnings
from . import warn_common as common
def classify_warnings(args):
"""Classify a list of warning lines.
Args:
args: dictionary {
'group': list of (warning, link),
'project_patterns': re.compile(project_list[p][1]),
'warn_patterns': list of warn_pattern,
'num_processes': number of processes being used for multiprocessing }
Returns:
results: a list of the classified warnings.
"""
results = []
for line, link in args['group']:
common.classify_one_warning(line, link, results, args['project_patterns'],
args['warn_patterns'])
# After the main work, ignore all other signals to a child process,
# to avoid bad warning/error messages from the exit clean-up process.
if args['num_processes'] > 1:
signal.signal(signal.SIGTERM, lambda *args: sys.exit(-signal.SIGTERM))
return results
def create_and_launch_subprocesses(num_cpu, classify_warnings_fn, arg_groups,
group_results):
"""Fork num_cpu processes to classify warnings."""
pool = multiprocessing.Pool(num_cpu)
for cpu in range(num_cpu):
proc_result = pool.map(classify_warnings_fn, arg_groups[cpu])
if proc_result is not None:
group_results.append(proc_result)
return group_results
def main():
"""Old main() calls new common_main."""
use_google3 = False
common.common_main(use_google3, create_and_launch_subprocesses,
classify_warnings)
if __name__ == '__main__':
main()