Automatic TrueNAS media ingesting with UGREEN NAS blinky lights. Tested on DXP4800+

99-ingest.rules

# /etc/udev/rules.d/99-ingest.rules
ACTION=="add", SUBSYSTEM=="block", KERNEL=="sd*[0-9]", ENV{ID_MODEL}=="MassStorageClass", RUN+="/bin/systemctl start ingest@%k.service"

# udevadm control --reload-rules
# udevadm trigger

ingest.sh

#!/bin/bash
set -x
exec > /tmp/ingest.log 2>&1
echo "Script triggered on $(date)"
echo "id: $(id)"

ID="scarsz:scarsz"
DEVICE="$1"
SCRIPT_DIR=$(dirname "$0")
MOUNT_POINT="/mnt/sdcard"
DESTINATION="/mnt/Pool/Home/scarsz/Ingest-$(date +%s)"
UGREEN="$SCRIPT_DIR/ugreen_leds_cli"

mkdir -p "$MOUNT_POINT"
mkdir -p "$DESTINATION"

cleanup_and_exit() {
  umount "$MOUNT_POINT" 2>/dev/null
  kill $LED_PID 2>/dev/null
  chmod +x $SCRIPT_DIR/leds.sh
  $SCRIPT_DIR/leds.sh
  exit
}
trap cleanup_and_exit INT

# prevent cron task from messing up our LED display
chmod -x $SCRIPT_DIR/leds.sh

umount "$MOUNT_POINT" 2>/dev/null
mount "${DEVICE}" "$MOUNT_POINT" || exit 1

TOTAL_BYTES=$(du -sb "$MOUNT_POINT" | awk '{print $1}')
TOTAL_MB=$(( TOTAL_BYTES / 1024 / 1024 ))

progress_and_blink_leds() {
  $UGREEN all -off
  $UGREEN power -on -color 255 0 0 -blink 50 50
  START_BYTES=$(du -sb "$DESTINATION" | awk '{print $1}')
  LAST_DIVISION=-1
  while true; do
    CURRENT_BYTES=$(du -sb "$DESTINATION" | awk '{print $1}')
    COPIED_BYTES=$(( CURRENT_BYTES - START_BYTES ))

    PERCENT=0
    if [ "$TOTAL_BYTES" -gt 0 ]; then
      PERCENT=$((COPIED_BYTES * 100 / (START_BYTES + TOTAL_BYTES)))
    fi

    if [ $(( $PERCENT / 20 )) -gt $LAST_DIVISION ]; then
      LAST_DIVISION=$(( PERCENT / 20 ))

      LEDS=()
      if [ "$PERCENT" -ge 0 ]; then LEDS+=("netdev"); fi
      if [ "$PERCENT" -ge 20 ]; then LEDS+=("disk1"); fi
      if [ "$PERCENT" -ge 40 ]; then LEDS+=("disk2"); fi
      if [ "$PERCENT" -ge 60 ]; then LEDS+=("disk3"); fi
      if [ "$PERCENT" -ge 80 ]; then LEDS+=("disk4"); fi

      if [ "${#LEDS[@]}" -gt 0 ]; then
        LAST_INDEX=$((${#LEDS[@]} - 1))
        BLINK_LED=${LEDS[$LAST_INDEX]}
        SOLID_LEDS=("${LEDS[@]:0:$LAST_INDEX}")

        if [ "${#SOLID_LEDS[@]}" -gt 0 ]; then
          $UGREEN "${SOLID_LEDS[@]}" -on -color 0 255 0
        fi

        $UGREEN "$BLINK_LED" -on -color 0 255 0 -blink 150 150
      fi
    fi

    COPIED_MB=$((COPIED_BYTES / 1024 / 1024))
    echo "$COPIED_MB/$TOTAL_MB MB - $PERCENT%"
    sleep 1
  done
}
progress_and_blink_leds &
LED_PID=$!

rsync -a --chown $ID $MOUNT_POINT/ $DESTINATION/

kill $LED_PID
$UGREEN all -on -color 0 255 0
sleep 3
cleanup_and_exit

[email protected]

# /etc/systemd/system/[email protected]
[Unit]
Description=Ingest mass storage from /dev/%I
After=local-fs.target

[Service]
Type=oneshot
ExecStart=/mnt/Pool/User/ingest.sh /dev/%I

# sudo systemctl daemon-reexec
# sudo systemctl daemon-reload