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

post_upgrade() {
 post_install $1
}

post_remove() {
 post_install $1
}