core/cups/cups.install

post_install() {
  if [ -x usr/bin/xdg-icon-resource ]; then
    xdg-icon-resource forceupdate --theme hicolor 2> /dev/null
  fi

  echo ">> If you use an HTTPS connection to CUPS, the first time you access"
  echo ">> the interface it may take a very long time before the site comes up."
  echo ">> This is because the first request triggers the generation of the CUPS"
  echo ">> SSL certificates which can be a very time-consuming job."
}

post_upgrade() {
  if [ -x usr/bin/xdg-icon-resource ]; then
    xdg-icon-resource forceupdate --theme hicolor 2> /dev/null
  fi

  if [ "$(vercmp "${2}" 1.4.7-2)" -lt 0 ]; then
    # important upgrade notice
    echo "The CUPS daemon script has been renamed to /etc/rc.d/cupsd"
    echo "Change your entry in /etc/rc.conf"
  fi

  # If the "lp" user group is still present, and the user has not changed the cupsd.conf
  # from the old default "SystemGroup sys root" setting, let's replace that line, so that
  # it will also allow for the "lp" user group to administrate CUPS.
  # Without this, non-root users will see the Printers KCM silently hang (the CUPS server
  # will deny access).

  local cupsd=etc/cups/cupsd.conf

  if ( getent group lp && grep '^SystemGroup sys root$' "${cupsd}") &>/dev/null; then
    echo "[NOTICE] the CUPS configuration is being automatically tweaked to allow all users belonging to the \"lp\" group to administrate the server."
    sed -i 's/^SystemGroup sys root$/SystemGroup sys root lp/g' "${cupsd}"
  fi
}

post_remove() {
    if [ -x usr/bin/xdg-icon-resource ]; then
	xdg-icon-resource forceupdate --theme hicolor 2> /dev/null
    fi
}