overlay_sync

#!/bin/sh

usage="Usage:
    $(basename "$0") 1 - 'order' syncing of rootfs changes on reboot/shutdown
    $(basename "$0") 0 - discard syncing
"

case "$1" in
  0)
    if [ -f /tmp/overlay_sync ]; then
      rm /tmp/overlay_sync
    fi
    ;;
  1)
    echo $@ > /tmp/overlay_sync
    ;;
  *)
    echo "$usage"
    ;;
esac

exit 0