# alx specific functions

add_conf_prot()
{
	local i

	for i in $@
	do
		export CONFIG_PROTECT="${CONFIG_PROTECT} ${i}"
	done
}

add_conf_prot_mask()
{
	local i

	for i in $@
	do
		export CONFIG_PROTECT_MASK="${CONFIG_PROTECT_MASK} ${i}"
	done
}

# updates /boot/grub/grub.conf with given params
# example:   alx_grub_update kernel-image-name description
alx_grub_update()
{
	local KERNEL_IMAGE
	local KERNEL_DESCRIPTION
	local i
	local rootfs
	local grubroot
	local OLD_IFS
	local grubconf="/boot/grub/grub.conf"

	KERNEL_IMAGE="$1"
	KERNEL_DESCRIPTION="$2"

	# some checks
	if [ -z "${KERNEL_IMAGE}" ]
	then
		echo "At least a kernel-image must be given"
		return 1
	fi

	[ -z "${KERNEL_DESCRIPTION}" ] && KERNEL_DESCRIPTION="${KERNEL_IMAGE}"

	if [ ! -f ${grubconf} ]
	then
		echo "${grubconf} not found"
		return 1
	fi

	# first of all get the first rootfs instance
	for i in $(< ${grubconf})
	do
		rootfs="$(echo ${i} | grep root=)"
		[[ -n ${rootfs} ]] && break
	done

	# then get the grub-root
	OLD_IFS="$IFS"
	IFS=$'\n'
	for i in $(< ${grubconf})
	do
		grubroot="$(echo ${i} | grep 'root (' | cut -d' ' -f2)"
		[[ -n ${grubroot} ]] && break
	done
	IFS="${OLD_IFS}"

	# fix description
	: > ${grubconf}
	echo "default 0" >> ${grubconf}
	echo "timeout 3" >> ${grubconf}
	# using roots current password
	echo "password --md5 $(cat /etc/shadow | grep root | cut -d: -f2)"  >> ${grubconf}
	echo  >> ${grubconf}
	acho "# normal boot" >> ${grubconf}
	echo "title ${KERNEL_DESCRIPTION}" >> ${grubconf}
	echo "root ${grubroot}" >> ${grubconf}
	echo "kernel ${grubroot}/boot/${KERNEL_IMAGE} ${rootfs} quiet" >> ${grubconf}
	echo >> ${grubconf}
	echo "# admin boots" >> ${grubconf}
	echo "title ${KERNEL_DESCRIPTION} - Re-run hardware-detection" >> ${grubconf}
	echo "lock"  >> ${grubconf}
	echo "root ${grubroot}" >> ${grubconf}
	echo "kernel ${grubroot}/boot/${KERNEL_IMAGE} ${rootfs} quiet hardware-auto-detection" >> ${grubconf}
	echo >> ${grubconf}
	echo "title ${KERNEL_DESCRIPTION} - Reset *all* local settings" >> ${grubconf}
	echo "lock"  >> ${grubconf}
	echo "root ${grubroot}" >> ${grubconf}
	echo "kernel ${grubroot}/boot/${KERNEL_IMAGE} ${rootfs} quiet alx-reset-settings" >> ${grubconf}
}

## compat
alx_grub_update_new()
{
	echo -e "${COLYELLOW}alx_grub_update_new() is deprecated - please only use alx_grub_update() from now on${COLDEFAULT}"
	alx_grub_update
	echo -e "${COLYELLOW}alx_grub_update_new() is deprecated - please only use alx_grub_update() from now on${COLDEFAULT}"
}