| #!/usr/bin/env python3 |
| # 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. |
| |
| """Wrapper around repo to auto-update depot_tools during sync. |
| |
| gclient keeps depot_tools up-to-date automatically for Chromium developers. |
| |
| We only want to do this on `repo sync` operations as that implies a network |
| operation, and update_depot_tools is not cheap. |
| """ |
| |
| import os |
| from pathlib import Path |
| import subprocess |
| import sys |
| |
| |
| # Some useful paths. |
| DEPOT_TOOLS_DIR = Path(__file__).resolve().parent |
| UPDATE_DEPOT_TOOLS = DEPOT_TOOLS_DIR / 'update_depot_tools' |
| REPO = DEPOT_TOOLS_DIR / 'repo_launcher' |
| |
| |
| def _UpdateDepotTools(): |
| """Help CrOS users keep their depot_tools checkouts up-to-date.""" |
| if os.getenv('DEPOT_TOOLS_UPDATE') == '0': |
| return |
| |
| # We don't update the copy that's part of the CrOS repo client checkout. |
| path = DEPOT_TOOLS_DIR |
| while path != path.parent: |
| if (path / '.repo').is_dir() and (path / 'chromite').is_dir(): |
| return |
| path = path.parent |
| |
| if UPDATE_DEPOT_TOOLS.exists(): |
| subprocess.run([UPDATE_DEPOT_TOOLS], check=True) |
| else: |
| print('warning: %s does not exist; export DEPOT_TOOLS_UPDATE=0 to disable.' |
| % (UPDATE_DEPOT_TOOLS,), file=sys.stderr) |
| |
| |
| def main(argv): |
| # This is a bit hacky, but should be "good enough". If repo itself gains |
| # support for sync hooks, we could switch to that. |
| if argv and argv[0] == 'sync': |
| _UpdateDepotTools() |
| |
| os.execv(sys.executable, [sys.executable, str(REPO)] + argv) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main(sys.argv[1:])) |