Clean up 0-byte files in 60 minutes

bin/cleanup-smartcam-data

@@ -224,9 +224,97 @@ delete_stale_zero_bundles() {
   fi
 }
 
+delete_stale_zero_part_bundles() {
+  local part filename base final_raw sibling path size
+  local safe part_count deleted_bundles=0 deleted_files=0 deleted_bytes=0
+  declare -A checked_bases=()
+
+  while IFS= read -r -d '' part; do
+    [[ -f "$part" ]] || continue
+    filename="$(basename "$part")"
+    base="${filename%%_raw.mp4.part*}"
+    [[ -n "$base" && -z "${checked_bases[$base]:-}" ]] || continue
+    checked_bases["$base"]=1
+    final_raw="$DATA_ROOT/videos_raw/${base}_raw.mp4"
+
+    # If a valid final raw exists, these are harmless recorder leftovers.
+    # Delete only old, zero-byte, unopened part files; preserve the bundle.
+    if [[ -f "$final_raw" ]]; then
+      while IFS= read -r -d '' sibling; do
+        find "$sibling" -mmin "+${MIN_FILE_AGE_MINUTES}" -print -quit 2>/dev/null |
+          grep -q . || continue
+        if command -v fuser >/dev/null 2>&1 && fuser -s "$sibling" 2>/dev/null; then
+          log WARNING "stale zero-byte part is still open; skipped: ${sibling}"
+          continue
+        fi
+        if rm -f -- "$sibling"; then
+          deleted_files=$((deleted_files + 1))
+          log INFO "deleted stale zero-byte recorder part: ${sibling}"
+        fi
+      done < <(find "$DATA_ROOT/videos_raw" -maxdepth 1 -type f \
+        -name "${base}_raw.mp4.part*.mp4" -size 0 -print0 2>/dev/null)
+      continue
+    fi
+
+    # Without a final raw, only remove the incomplete bundle when every part
+    # is old, zero bytes, and not held open by any process.
+    safe=1
+    part_count=0
+    while IFS= read -r -d '' sibling; do
+      part_count=$((part_count + 1))
+      [[ "$(stat -c %s "$sibling" 2>/dev/null || printf 1)" -eq 0 ]] || {
+        safe=0
+        break
+      }
+      find "$sibling" -mmin "+${MIN_FILE_AGE_MINUTES}" -print -quit 2>/dev/null |
+        grep -q . || {
+        safe=0
+        break
+      }
+      if command -v fuser >/dev/null 2>&1 && fuser -s "$sibling" 2>/dev/null; then
+        log WARNING "incomplete part bundle is still open; skipped: ${sibling}"
+        safe=0
+        break
+      fi
+    done < <(find "$DATA_ROOT/videos_raw" -maxdepth 1 -type f \
+      -name "${base}_raw.mp4.part*.mp4" -print0 2>/dev/null)
+
+    [[ "$safe" -eq 1 && "$part_count" -gt 0 ]] || continue
+
+    while IFS= read -r -d '' sibling; do
+      size="$(stat -c %s "$sibling" 2>/dev/null || printf 0)"
+      if rm -f -- "$sibling"; then
+        deleted_files=$((deleted_files + 1))
+        deleted_bytes=$((deleted_bytes + size))
+        log INFO "deleted stale incomplete bundle part: ${sibling}"
+      fi
+    done < <(find "$DATA_ROOT/videos_raw" -maxdepth 1 -type f \
+      -name "${base}_raw.mp4.part*.mp4" -print0 2>/dev/null)
+
+    for path in \
+      "$DATA_ROOT/videos/${base}_annotated.mp4" \
+      "$DATA_ROOT/annotations/${base}.xml"; do
+      [[ -f "$path" ]] || continue
+      size="$(stat -c %s "$path" 2>/dev/null || printf 0)"
+      if rm -f -- "$path"; then
+        deleted_files=$((deleted_files + 1))
+        deleted_bytes=$((deleted_bytes + size))
+        log INFO "deleted stale incomplete bundle member: ${path}"
+      fi
+    done
+    deleted_bundles=$((deleted_bundles + 1))
+  done < <(find "$DATA_ROOT/videos_raw" -maxdepth 1 -type f \
+    -name '*_raw.mp4.part*.mp4' -size 0 -print0 2>/dev/null)
+
+  if [[ "$deleted_bundles" -gt 0 || "$deleted_files" -gt 0 ]]; then
+    log INFO "stale part cleanup result: bundles=${deleted_bundles} files=${deleted_files} bytes=${deleted_bytes}"
+  fi
+}
+
 main() {
   local free_bytes processed bundles
   delete_stale_zero_bundles
+  delete_stale_zero_part_bundles
   free_bytes="$(available_bytes)"
 
   # Protect the disk before cleanup work: once free space is below 3 GiB,