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56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
#!/usr/bin/env python3
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# Copyright 2020 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Wrapper around repo to auto-update depot_tools during sync.
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gclient keeps depot_tools up-to-date automatically for Chromium developers.
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We only want to do this on `repo sync` operations as that implies a network
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operation, and update_depot_tools is not cheap.
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"""
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import os
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from pathlib import Path
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import subprocess
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import sys
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# Some useful paths.
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DEPOT_TOOLS_DIR = Path(__file__).resolve().parent
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UPDATE_DEPOT_TOOLS = DEPOT_TOOLS_DIR / 'update_depot_tools'
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REPO = DEPOT_TOOLS_DIR / 'repo_launcher'
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def _UpdateDepotTools():
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"""Help CrOS users keep their depot_tools checkouts up-to-date."""
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if os.getenv('DEPOT_TOOLS_UPDATE') == '0':
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return
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# We don't update the copy that's part of the CrOS repo client checkout.
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path = DEPOT_TOOLS_DIR
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while path != path.parent:
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if (path / '.repo').is_dir() and (path / 'chromite').is_dir():
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return
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path = path.parent
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if UPDATE_DEPOT_TOOLS.exists():
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subprocess.run([UPDATE_DEPOT_TOOLS], check=True)
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else:
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print(f'warning: {UPDATE_DEPOT_TOOLS} does not exist; export '
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'DEPOT_TOOLS_UPDATE=0 to disable.', file=sys.stderr)
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def main(argv):
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# This is a bit hacky, but should be "good enough". If repo itself gains
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# support for sync hooks, we could switch to that.
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if argv and argv[0] == 'sync':
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_UpdateDepotTools()
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os.execv(sys.executable, [sys.executable, str(REPO)] + argv)
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if __name__ == '__main__':
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sys.exit(main(sys.argv[1:]))
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