arch-ppa/src/ttf-oxygen/ttf-oxygen.install

post_install() {
  echo -n "Updating font cache... "
  fc-cache -s
  mkfontscale /usr/share/fonts/TTF
  mkfontdir /usr/share/fonts/TTF
  echo "done."
}

post_upgrade() {
  post_install $1
}

post_remove() {
  post_install $1
}