46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
import os
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from iqpilot.common.swaglog import cloudlog
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from iqpilot.system.hardware.hw import Paths
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PRESERVE_ATTR_NAME = b"user.preserve"
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PRESERVE_ATTR_VALUE = b"1"
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def recover_unclean_segments(log_root: str | None = None) -> list[str]:
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# Segments with leftover .lock files are from a loggerd that never closed
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# cleanly (power cut, crash). The video/log data in them is valid up to the
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# last durable sync. Clear the stale locks so the deleter can manage them
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# again, and preserve them: footage from an unclean shutdown is exactly the
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# footage a dashcam must not throw away.
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root = log_root if log_root is not None else Paths.log_root()
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recovered = []
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try:
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dirs = os.listdir(root)
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except OSError:
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return recovered
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for d in dirs:
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seg_path = os.path.join(root, d)
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if not os.path.isdir(seg_path):
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continue
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try:
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locks = [f for f in os.listdir(seg_path) if f.endswith(".lock")]
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if not locks:
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continue
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for lock in locks:
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os.unlink(os.path.join(seg_path, lock))
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setxattr = getattr(os, "setxattr", None) # not available on darwin
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if setxattr is not None:
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try:
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setxattr(seg_path, PRESERVE_ATTR_NAME, PRESERVE_ATTR_VALUE)
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except OSError:
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pass
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recovered.append(d)
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except OSError:
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cloudlog.exception(f"crash_recovery: failed to recover {seg_path}")
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if recovered:
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cloudlog.event("crash_recovery.recovered_unclean_segments", segments=sorted(recovered), error=True)
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return recovered
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