#! /bin/sh -e
########################################################
# This script generates an Invaders entry on grub.cfg  #
# if grubinvaders is installed on the system.          #
########################################################

prefix="/usr"
exec_prefix="${prefix}"

datarootdir="/usr/share"
datadir="${datarootdir}"

. "${datadir}/grub/grub-mkconfig_lib"

INVADERS_IMAGE="/boot/grubinvaders/invaders.bin"
CLASS="--class game"

if [ -e ${INVADERS_IMAGE} ] && is_path_readable_by_grub ${INVADERS_IMAGE}; then
	# image exists, create menu entry
	echo "Found Invaders image: ${INVADERS_IMAGE}" >&2
	echo "if [ \"\${grub_platform}\" == \"pc\" ]; then"
	echo -e "\tmenuentry \"Grub Invaders\" ${CLASS} {"
	prepare_grub_to_access_device $(${grub_probe} --target=device ${INVADERS_IMAGE}) | sed -e "s/^/\t\t/"
	echo -e "\t\tmultiboot $(make_system_path_relative_to_its_root ${INVADERS_IMAGE})"
	echo -e "\t}"
	echo "fi"
fi