| #!/usr/bin/env python3 |
| # -*- coding: utf-8 -*- |
| # Copyright 2020 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Fetches and submits the artifacts from Chrome OS toolchain's crash bucket. |
| """ |
| |
| # pylint: disable=cros-logging-import |
| |
| import argparse |
| import glob |
| import json |
| import logging |
| import os |
| import os.path |
| import shutil |
| import subprocess |
| import sys |
| |
| import chroot |
| |
| |
| def get_artifacts(pattern): |
| results = subprocess.check_output(['gsutil.py', 'ls', pattern], |
| stderr=subprocess.STDOUT, |
| encoding='utf-8') |
| return sorted(l.strip() for l in results.splitlines()) |
| |
| |
| def get_crash_reproducers(working_dir): |
| results = [] |
| for src in [ |
| f for f in glob.glob('%s/*.c*' % working_dir) |
| if f.split('.')[-1] in ['c', 'cc', 'cpp'] |
| ]: |
| script = '.'.join(src.split('.')[:-1]) + '.sh' |
| if not os.path.exists(script): |
| logging.warning('could not find the matching script of %s', src) |
| else: |
| results.append((src, script)) |
| return results |
| |
| |
| def submit_crash_to_forcey(forcey: str, temporary_directory: str, |
| buildbucket_id: str, url: str) -> None: |
| dest_dir = os.path.join(temporary_directory, buildbucket_id) |
| dest_file = os.path.join(dest_dir, os.path.basename(url)) |
| logging.info('Downloading and submitting %r...', url) |
| subprocess.check_output(['gsutil.py', 'cp', url, dest_file], |
| stderr=subprocess.STDOUT) |
| subprocess.check_output(['tar', '-xJf', dest_file], cwd=dest_dir) |
| for src, script in get_crash_reproducers(dest_dir): |
| subprocess.check_output([ |
| forcey, 'reduce', '-wait=false', '-note', |
| '%s:%s' % (url, src), '-sh_file', script, '-src_file', src |
| ]) |
| |
| |
| def main(argv): |
| chroot.VerifyOutsideChroot() |
| logging.basicConfig( |
| format='%(asctime)s: %(levelname)s: %(filename)s:%(lineno)d: %(message)s', |
| level=logging.INFO, |
| ) |
| cur_dir = os.path.dirname(os.path.abspath(__file__)) |
| parser = argparse.ArgumentParser(description=__doc__) |
| parser.add_argument( |
| '--4c', dest='forcey', required=True, help='Path to a 4c client binary') |
| parser.add_argument( |
| '--state_file', |
| default=os.path.join(cur_dir, 'chromeos-state.json'), |
| help='The path to the state file.') |
| parser.add_argument( |
| '--nocleanup', |
| action='store_false', |
| dest='cleanup', |
| help='Keep temporary files created after the script finishes.') |
| opts = parser.parse_args(argv) |
| |
| state_file = os.path.abspath(opts.state_file) |
| os.makedirs(os.path.dirname(state_file), exist_ok=True) |
| temporary_directory = '/tmp/bisect_clang_crashes' |
| os.makedirs(temporary_directory, exist_ok=True) |
| urls = get_artifacts('gs://chromeos-toolchain-artifacts/clang-crash-diagnoses' |
| '/**/*clang_crash_diagnoses.tar.xz') |
| logging.info('%d crash URLs found', len(urls)) |
| |
| visited = {} |
| if os.path.exists(state_file): |
| buildbucket_ids = {url.split('/')[-2] for url in urls} |
| with open(state_file, encoding='utf-8') as f: |
| data = json.load(f) |
| visited = {k: v for k, v in data.items() if k in buildbucket_ids} |
| logging.info('Successfully loaded %d previously-submitted crashes', |
| len(visited)) |
| |
| try: |
| for url in urls: |
| splits = url.split('/') |
| buildbucket_id = splits[-2] |
| # Skip the builds that has been processed |
| if buildbucket_id in visited: |
| continue |
| submit_crash_to_forcey( |
| forcey=opts.forcey, |
| temporary_directory=temporary_directory, |
| buildbucket_id=buildbucket_id, |
| url=url, |
| ) |
| visited[buildbucket_id] = url |
| |
| exception_in_flight = False |
| except: |
| exception_in_flight = True |
| raise |
| finally: |
| if exception_in_flight: |
| # This is best-effort. If the machine powers off or similar, we'll just |
| # resubmit the same crashes, which is suboptimal, but otherwise |
| # acceptable. |
| logging.error('Something went wrong; attempting to save our work...') |
| else: |
| logging.info('Persisting state...') |
| |
| tmp_state_file = state_file + '.tmp' |
| with open(tmp_state_file, 'w', encoding='utf-8') as f: |
| json.dump(visited, f, indent=2) |
| os.rename(tmp_state_file, state_file) |
| |
| logging.info('State successfully persisted') |
| |
| if opts.cleanup: |
| shutil.rmtree(temporary_directory) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main(sys.argv[1:])) |