post_install() {
  echo "Parabola GNU/Linux-libre release" >> /etc/parabola-release
}

post_upgrade() {
  sed -e '/Parabola GNU\/Linux-[Ll]ibre release/d' -i /etc/parabola-release
  echo "Parabola GNU/Linux-libre release" >> /etc/parabola-release
}

pre_remove() {
  sed -e '/Parabola GNU\/Linux-[Ll]ibre release/d' -i /etc/parabola-release
}