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main: Pass path to python binary as arg0 when restarting repo

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Not including it causes flaky behavior in some Chromium builders
because Chromium's custom Python build used by vpython relies on
argv[0] to find its own internal files.

Bug: https://crbug.com/1468522
Change-Id: I5c32ebe71c9b684d6ee50dbd8c3d6fcd51ca309b
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/381974
Reviewed-by: Chenlin Fan <fancl@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>
Tested-by: Gavin Mak <gavinmak@google.com>
This commit is contained in:
Gavin Mak 2023-08-04 21:13:38 +00:00 committed by LUCI
parent f9aacd4087
commit f1ddaaa553
1 changed files with 1 additions and 2 deletions
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3
main.py
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@ -887,11 +887,10 @@ def _Main(argv):
result = KEYBOARD_INTERRUPT_EXIT
except RepoChangedException as rce:
# If repo changed, re-exec ourselves.
#
argv = list(sys.argv)
argv.extend(rce.extra_args)
try:
os.execv(sys.executable, [__file__] + argv)
os.execv(sys.executable, [sys.executable, __file__] + argv)
except OSError as e:
print("fatal: cannot restart repo after upgrade", file=sys.stderr)
print("fatal: %s" % e, file=sys.stderr)