IQ.Pilot Prebuilt Release @ 27f668a

iqpilot/system/loggerd/crash_recovery.py

@@ -0,0 +1,45 @@
+import os
+
+from iqpilot.common.swaglog import cloudlog
+from iqpilot.system.hardware.hw import Paths
+
+PRESERVE_ATTR_NAME = b"user.preserve"
+PRESERVE_ATTR_VALUE = b"1"
+
+
+def recover_unclean_segments(log_root: str | None = None) -> list[str]:
+  # Segments with leftover .lock files are from a loggerd that never closed
+  # cleanly (power cut, crash). The video/log data in them is valid up to the
+  # last durable sync. Clear the stale locks so the deleter can manage them
+  # again, and preserve them: footage from an unclean shutdown is exactly the
+  # footage a dashcam must not throw away.
+  root = log_root if log_root is not None else Paths.log_root()
+  recovered = []
+  try:
+    dirs = os.listdir(root)
+  except OSError:
+    return recovered
+
+  for d in dirs:
+    seg_path = os.path.join(root, d)
+    if not os.path.isdir(seg_path):
+      continue
+    try:
+      locks = [f for f in os.listdir(seg_path) if f.endswith(".lock")]
+      if not locks:
+        continue
+      for lock in locks:
+        os.unlink(os.path.join(seg_path, lock))
+      setxattr = getattr(os, "setxattr", None)  # not available on darwin
+      if setxattr is not None:
+        try:
+          setxattr(seg_path, PRESERVE_ATTR_NAME, PRESERVE_ATTR_VALUE)
+        except OSError:
+          pass
+      recovered.append(d)
+    except OSError:
+      cloudlog.exception(f"crash_recovery: failed to recover {seg_path}")
+
+  if recovered:
+    cloudlog.event("crash_recovery.recovered_unclean_segments", segments=sorted(recovered), error=True)
+  return recovered