PRELOAD_STATE=/var/lib/preload/preload.state

# arg 1:  the new package version
# arg 2:  the old package version
pre_upgrade() {
  if [ "$(vercmp "$2" 0.6.3-2)" -lt 0 ]; then
    echo "Backing up your state file..."
    cp -af ${PRELOAD_STATE} ${PRELOAD_STATE}.backup
  fi
}

# arg 1:  the new package version
# arg 2:  the old package version
post_upgrade() {
  if [ "$(vercmp "$2" 0.6.3-2)" -lt 0 ] && [ -f ${PRELOAD_STATE}.backup ]; then
    echo "Restoring the state file..."
    mv -f ${PRELOAD_STATE}.backup ${PRELOAD_STATE}
  fi
}

# arg 1:  the old package version
post_remove() {
  echo
  echo "Leaving ${PRELOAD_STATE} intact in case one day you want to"
  echo "install preload again. If you are sure you don't need it anymore, please"
  echo "remove it manually. Log files in /var/log have not been removed as well."
  echo
}

# vim:set ts=2 sw=2 et: