post_install() {
  echo "Parabola GNU/Linux-Libre release" >> /etc/arch-release
}

post_upgrade() {
  sed -e '/Parabola GNU\/Linux-Libre release/d' -i /etc/arch-release
  echo "Parabola GNU/Linux-Libre release" >> /etc/arch-release
}

pre_remove() {
  sed -e '/Parabola GNU\/Linux-Libre release/d' -i /etc/arch-release
}