post_install() {
  usr/bin/update-mime-database /usr/share/mime > /dev/null 2>&1
}

post_upgrade() {
  usr/bin/update-mime-database /usr/share/mime > /dev/null 2>&1
}

pre_remove() {
  usr/bin/update-mime-database /usr/share/mime > /dev/null 2>&1
}