68 lines
2.2 KiB
Bash
68 lines
2.2 KiB
Bash
#!/bin/bash
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BASE_DIR="/files"
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CURRENT_DIR="$BASE_DIR/current"
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mkdir -p "$CURRENT_DIR"
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# Store last SHA256 checksums and last update timestamps for each camera
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declare -A LAST_SHA
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declare -A LAST_UPDATE
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# How long to wait before deleting stale images (in seconds)
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STALE_TIMEOUT=$((15 * 60))
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echo "[Watcher] Starting to monitor subfolders in $BASE_DIR ..."
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while true; do
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NOW=$(date +%s)
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for CAM_DIR in "$BASE_DIR"/msvcam*; do
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[ -d "$CAM_DIR" ] || continue
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CAM_NAME=$(basename "$CAM_DIR")
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OUT_FILE="$CURRENT_DIR/${CAM_NAME}.avif"
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# Find the newest image
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NEWEST_FILE=$(find "$CAM_DIR" -type f \
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\( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" -o -iname "*.bmp" -o -iname "*.tif" -o -iname "*.tiff" \) \
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-printf "%T@ %p\n" 2>/dev/null | sort -n | tail -1 | awk '{print $2}')
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if [ -n "$NEWEST_FILE" ]; then
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# Calculate SHA256 of the newest image
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SHA=$(sha256sum "$NEWEST_FILE" | awk '{print $1}')
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# Check if this file has already been converted
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if [ "${LAST_SHA[$CAM_NAME]}" != "$SHA" ]; then
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echo "[Watcher] New or changed file detected for $CAM_NAME: $NEWEST_FILE"
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if avifenc "$NEWEST_FILE" "$OUT_FILE"; then
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sync
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LAST_SHA[$CAM_NAME]="$SHA"
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LAST_UPDATE[$CAM_NAME]=$NOW
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echo "[Watcher] Conversion successful: $OUT_FILE"
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else
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echo "[Watcher][ERROR] Conversion failed for $NEWEST_FILE"
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fi
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else
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echo "[Watcher] No change detected for $CAM_NAME, skipping conversion."
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fi
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fi
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# Check for staleness
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if [ -n "${LAST_UPDATE[$CAM_NAME]}" ]; then
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ELAPSED=$((NOW - LAST_UPDATE[$CAM_NAME]))
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if [ $ELAPSED -ge $STALE_TIMEOUT ]; then
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if [ -f "$OUT_FILE" ]; then
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echo "[Watcher] No new image for $CAM_NAME in $((STALE_TIMEOUT/60)) minutes. Removing $OUT_FILE"
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rm -f "$OUT_FILE"
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fi
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fi
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fi
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done
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# Sleep before next check
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SLEEP_INTERVAL="${SLEEP_INTERVAL:-5}"
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sleep "$SLEEP_INTERVAL"
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done
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