post_install() {
  update_icons
  message
}

post_upgrade() {
  update_icons
  message
}

post_remove() {
  update_icons
}

update_icons() {
  type -p gtk-update-icon-cache > /dev/null 2>&1 && usr/bin/gtk-update-icon-cache -qtf usr/share/icons/hicolor
  type -p update-desktop-database > /dev/null 2>&1 && usr/bin/update-desktop-database -q usr/share/applications
  return 0
}

message() {
  bold=`tput bold`
  boff=`tput sgr0`
  echo ""
  echo "${bold}You need to be in group video${boff}"
}