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Handle stale updater lockfiles by removing dead PID entries

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This commit is contained in:
Aaron
2025-12-14 18:56:15 -05:00
parent 3a785832b1
commit 86438b11f3
1 changed files with 13 additions and 0 deletions
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13
pikit_api/releases.py
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@@ -400,6 +400,19 @@ def fetch_text_with_auth(url: str):
def acquire_lock(): def acquire_lock():
try: try:
ensure_dir(UPDATE_LOCK.parent) ensure_dir(UPDATE_LOCK.parent)
# Clear stale lock if the recorded PID is not running
if UPDATE_LOCK.exists():
try:
pid = int(UPDATE_LOCK.read_text().strip() or "0")
if pid > 0:
os.kill(pid, 0)
else:
UPDATE_LOCK.unlink(missing_ok=True)
except OSError:
# Process not running
UPDATE_LOCK.unlink(missing_ok=True)
except Exception:
UPDATE_LOCK.unlink(missing_ok=True)
lockfile = UPDATE_LOCK.open("w") lockfile = UPDATE_LOCK.open("w")
fcntl.flock(lockfile.fileno(), fcntl.LOCK_EX | fcntl.LOCK_NB) fcntl.flock(lockfile.fileno(), fcntl.LOCK_EX | fcntl.LOCK_NB)
lockfile.write(str(os.getpid())) lockfile.write(str(os.getpid()))