#!/bin/sh

# lh_binary_syslinux(1) - installs syslinux into binary
# Copyright (C) 2006-2007 Daniel Baumann <daniel@debian.org>
#
# live-helper comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
# This is free software, and you are welcome to redistribute it
# under certain conditions; see COPYING for details.

set -e

# Source common functions
for FUNCTION in /usr/share/live-helper/functions/*.sh
do
	. ${FUNCTION}
done

# Set static variables
DESCRIPTION="installs syslinux into binary"
HELP=""
USAGE="${PROGRAM} [--force]"

Arguments "${@}"

Echo_debug "Init ${PROGRAM}"

# Reading configuration files
Read_conffile config/bootstrap
Read_conffile config/chroot
Read_conffile config/common
Read_conffile config/image
Set_defaults

if [ "${LIVE_BOOTLOADER}" != "syslinux" ]
then
	exit 0
fi

Breakpoint "binary_syslinux: Init"

# Requiring stage file
Require_stagefile .stage/bootstrap

# Checking stage file
Check_stagefile .stage/binary_syslinux

# Checking lock file
Check_lockfile .lock

# Creating lock file
Create_lockfile .lock

if [ "${LIVE_ARCHITECTURE}" != "amd64" ] && [ "${LIVE_ARCHITECTURE}" != "i386" ]
then
	Echo_warning "skipping binary_syslinux, foreign architecture."
	exit 0
fi

# Check templates
if [ ! -d "${LIVE_TEMPLATES}" ]
then
	if [ -d ../"${LIVE_TEMPLATES}" ]
	then
		LIVE_TEMPLATES="../${LIVE_TEMPLATES}"
	else
		Echo_error "user specified templates not accessible in ${LIVE_TEMPLATES}"
		exit 1
	fi
fi

if [ ! -f chroot/usr/bin/syslinux ]
then
	PACKAGES="${PACKAGES} syslinux"
fi

if [ -n "${PACKAGES}" ]
then
	# Installing symlinks
	case "${LH_APT}" in
		apt|apt-get)
			Chroot "apt-get install --yes ${PACKAGES}"
			;;

		aptitude)
			Chroot "aptitude install --assume-yes ${PACKAGES}"
			;;
	esac
fi

# Setting destination directory
case "${LIVE_BINARY_IMAGE}" in
	iso)
		DESTDIR="binary/live"
		;;

	net)
		DESTDIR="tftpboot"
	;;

	usb|hdd)
		DESTDIR="binary"
		;;
esac

# Temporary check for broken syslinux
if [ "${LIVE_BINARY_IMAGE}" = "iso" ]
then
	# Assembling multi-arch
	if [ -n "${MULTIARCH}" ]
	then
		case "${LIVE_ARCHITECTURE}" in
			i386)
				DESTDIR="${DESTDIR}.386"
				;;
		esac
	fi
fi

# Creating directory
if [ ! -d "${DESTDIR}" ]
then
	mkdir -p "${DESTDIR}"
fi

# Setting boot parameters
if [ -n "${LIVE_ENCRYPTION}" ]
then
	LIVE_BOOTAPPEND="${LIVE_BOOTAPPEND} encryption=${LIVE_ENCRYPTION}"
fi

if [ -n "${LIVE_USERNAME}" ]
then
	LIVE_BOOTAPPEND="${LIVE_BOOTAPPEND} username=${LIVE_USERNAME}"
fi

if [ -n "${LIVE_HOSTNAME}" ]
then
	LIVE_BOOTAPPEND="${LIVE_BOOTAPPEND} hostname=${LIVE_HOSTNAME}"
fi

LIVE_BOOTAPPEND="`echo ${LIVE_BOOTAPPEND} | sed -e 's/  //'`"

# Parameters are listed at: linux/Documentation/kernel-parameters.txt
FAILSAFE="noapic noapm nodma nomce nolapic nosmp vga=normal"

# Assembling kernel configuration
if [ "${LIVE_BINARY_IMAGE}" = "iso" ]
then
	DEFAULT_FLAVOUR="`echo ${LIVE_KERNEL_FLAVOUR} | awk '{ print $1 }'`"
	LINUX="label LIVE\n  kernel /`basename ${DESTDIR}`/`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR}`\n  append initrd=/`basename ${DESTDIR}`/initrd.img-`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND"
	LINUX="${LINUX}\nlabel LIVE-failsafe\n  kernel /`basename ${DESTDIR}`/`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR}`\n  append initrd=/`basename ${DESTDIR}`/initrd.img-`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND ${FAILSAFE}"
else
	DEFAULT_FLAVOUR="`echo ${LIVE_KERNEL_FLAVOUR} | awk '{ print $1 }'`"
	LINUX="label LIVE\n  kernel `basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR}`\n  append initrd=initrd.img-`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND"
	LINUX="${LINUX}\nlabel LIVE-failsafe\n  kernel `basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR}`\n  append initrd=initrd.img-`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND ${FAILSAFE}"
fi

if [ "`echo ${LIVE_KERNEL_FLAVOUR} | wc -w`" -gt "1" ]
then
	for KERNEL in chroot/boot/vmlinuz*
	do
		if [ -z "${LINUX}" ]
		then
			if [ "${LIVE_BINARY_IMAGE}" = "iso" ]
			then
				LINUX="label LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`\n  kernel /`basename ${DESTDIR}`/`basename ${KERNEL}`\n  append initrd=/`basename ${DESTDIR}`/initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND"
				LINUX="${LINUX}\nlabel LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`-failsafe\n  kernel /`basename ${DESTDIR}`/`basename ${KERNEL}`\n  append initrd=/`basename ${DESTDIR}`/initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND ${FAILSAFE}"
		else
				LINUX="label LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`\n  kernel `basename ${KERNEL}`\n  append initrd=initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND"
				LINUX="${LINUX}\nlabel LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`\n  kernel `basename ${KERNEL}`\n  append initrd=initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND ${FAILSAFE}"
			fi
		else
			if [ "${LIVE_BINARY_IMAGE}" = "iso" ]
			then
			LINUX="${LINUX}\nlabel LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`\n  kernel /`basename ${DESTDIR}`/`basename ${KERNEL}`\n  append initrd=/`basename ${DESTDIR}`/initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND"
			LINUX="${LINUX}\nlabel LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`-failsafe\n  kernel /`basename ${DESTDIR}`/`basename ${KERNEL}`\n  append initrd=/`basename ${DESTDIR}`/initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND ${FAILSAFE}"
			else
				LINUX="${LINUX}\nlabel LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`\n  kernel `basename ${KERNEL}`\n  append initrd=initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND"
				LINUX="${LINUX}\nlabel LIVE-`basename ${KERNEL} | sed -e 's/vmlinuz-//'`\n  kernel `basename ${KERNEL}`\n  append initrd=initrd.img-`basename ${KERNEL} | sed -e 's/vmlinuz-//'` boot=casper LIVE_BOOTAPPEND ${FAILSAFE}"
			fi
		fi
	done
fi

LINUX="`echo ${LINUX} | sed -e 's#//#/#g'`"

# Assembling memtest configuration
if [ -f "${DESTDIR}"/memtest ]
then
	if [ "${LIVE_BINARY_IMAGE}" = "iso" ]
	then
		MEMTEST="label memtest\n  kernel /`basename ${DESTDIR}`/memtest"
		MEMTEST="`echo ${MEMTEST} | sed -e 's#//#/#g'`"
	else
		MEMTEST="label memtest\n  kernel memtest"
	fi
fi

case "${LIVE_BINARY_IMAGE}" in
	iso)
		# Copying syslinux
		mkdir -p binary/isolinux
		cp chroot/usr/lib/syslinux/isolinux.bin binary/isolinux
		cp -r "${LIVE_TEMPLATES}"/syslinux/* binary/isolinux

		# Copying splash screen
		if [ -n "${LIVE_SYSLINUX_SPLASH}" ]
		then
			if [ "${LIVE_SYSLINUX_SPLASH}" = "none" ]
			then
				rm -f binary/isolinux/splash.rle
				sed -e "s/.*splash.*//" binary/isolinux/isolinux.txt
			else
				cp -f "${LIVE_SYSLINUX_SPLASH}" binary/isolinux/splash.rle
			fi
		fi

		# Configure syslinux templates
		sed -i -e "s#LIVE_KERNEL_LIVE#${LINUX}#" -e "s#LIVE_KERNEL_INSTALL#${LIVE_KERNEL_INSTALL}#" -e "s#LIVE_MEMTEST#${MEMTEST}#" binary/isolinux/isolinux.cfg
		sed -i -e "s#LIVE_BOOTAPPEND#${LIVE_BOOTAPPEND}#" binary/isolinux/isolinux.cfg
		sed -i -e "s/LIVE_DATE/`date +%Y%m%d`/" binary/isolinux/f1.txt
		sed -i -e "s/LIVE_VERSION/${VERSION}/" binary/isolinux/f10.txt

		# Remove unused files
		rm -f binary/isolinux/pxelinux.cfg

		# Working arround syslinux 8.3 limitation
		if [ "`echo ${LIVE_KERNEL_FLAVOUR} | wc -w`" -gt "1" ]
		then
			for FLAVOUR in ${LIVE_KERNEL_FLAVOUR}
			do
				NUMBER=$(($NUMBER + 1))

				mv "${DESTDIR}"/vmlinuz-*-${FLAVOUR} "${DESTDIR}"/vmlinuz${NUMBER}
				mv "${DESTDIR}"/initrd.img-*-${FLAVOUR} "${DESTDIR}"/initrd${NUMBER}.img
				sed -i -e "s/LIVE.*-${FLAVOUR}/live${NUMBER}/g" -e "s/vmlinuz-.*-${FLAVOUR}/vmlinuz${NUMBER}/g" -e "s/initrd.img-.*-${FLAVOUR}/initrd${NUMBER}.img/g" -e "s/LIVE/live/" binary/isolinux/isolinux.cfg
			done
		else
			mv "${DESTDIR}"/vmlinuz-*-${LIVE_KERNEL_FLAVOUR} "${DESTDIR}"/vmlinuz
			mv "${DESTDIR}"/initrd.img-*-${LIVE_KERNEL_FLAVOUR} "${DESTDIR}"/initrd.img
			sed -i -e "s/LIVE.*-${LIVE_KERNEL_FLAVOUR}/live/g" -e "s/vmlinuz-.*-${LIVE_KERNEL_FLAVOUR}/vmlinuz/g" -e "s/initrd.img-.*-${LIVE_KERNEL_FLAVOUR}/initrd.img/g" -e "s/LIVE/live/" binary/isolinux/isolinux.cfg
		fi
		;;

	net)
		# Copying syslinux
		cp chroot/usr/lib/syslinux/pxelinux.0 tftpboot

		# Install syslinux templates
		mkdir -p tftpboot/pxelinux.cfg
		cp -r "${LIVE_TEMPLATES}"/syslinux/* tftpboot/pxelinux.cfg
		mv tftpboot/pxelinux.cfg/pxelinux.cfg tftpboot/pxelinux.cfg/default
		sed -i -e 's#splash.rle#pxelinux.cfg/splash.rle#' tftpboot/pxelinux.cfg/isolinux.txt

		# Copying splash screen
		if [ -n "${LIVE_SYSLINUX_SPLASH}" ]
		then
			if [ "${LIVE_SYSLINUX_SPLASH}" = "none" ]
			then
				rm -f tftpboot/pxelinux.cfg/splash.rle
				sed -e "s/.*splash.*//" tftpboot/pxelinux.cfg/isolinux.txt
			else
				cp -f "${LIVE_SYSLINUX_SPLASH}" tftpboot/pxelinux.cfg/splash.rle
			fi
		fi

		# Configure syslinux templates
		sed -i -e "s#LIVE_KERNEL_LIVE#${LINUX}#" -e "s#LIVE_KERNEL_INSTALL#${LIVE_KERNEL_INSTALL}#" -e "s#LIVE_MEMTEST#${MEMTEST}#" tftpboot/pxelinux.cfg/default
		sed -i -e "s/LIVE_SERVER_ADDRESS/${LIVE_SERVER_ADDRESS}/" -e "s#LIVE_SERVER_PATH#${LIVE_SERVER_PATH}#" -e "s#LIVE_BOOTAPPEND#${LIVE_BOOTAPPEND}#" tftpboot/pxelinux.cfg/default
		sed -i -e "s/LIVE_DATE/`date +%Y%m%d`/" tftpboot/pxelinux.cfg/f1.txt
		sed -i -e "s/LIVE_VERSION/${VERSION}/" tftpboot/pxelinux.cfg/f10.txt

		# Remove unused files
		rm -f tftpboot/pxelinux.cfg/isolinux.cfg

		# Working arround syslinux 8.3 limitation
		if [ "`echo ${LIVE_KERNEL_FLAVOUR} | wc -w`" -gt "1" ]
		then
			for FLAVOUR in ${LIVE_KERNEL_FLAVOUR}
			do
				NUMBER=$(($NUMBER + 1))

				mv "${DESTDIR}"/vmlinuz-*-${FLAVOUR} "${DESTDIR}"/vmlinuz${NUMBER}
				mv "${DESTDIR}"/initrd.img-*-${FLAVOUR} "${DESTDIR}"/initrd${NUMBER}.img
				sed -i -e "s/LIVE.*-${FLAVOUR}/live${NUMBER}/g" -e "s/vmlinuz-.*-${FLAVOUR}/vmlinuz${NUMBER}/g" -e "s/initrd.img-.*-${FLAVOUR}/initrd${NUMBER}.img/g" -e "s/LIVE/live/" tftpboot/pxelive.cfg/default
			done
		else
			mv "${DESTDIR}"/vmlinuz-*-${LIVE_KERNEL_FLAVOUR} "${DESTDIR}"/vmlinuz
			mv "${DESTDIR}"/initrd.img-*-${LIVE_KERNEL_FLAVOUR} "${DESTDIR}"/initrd.img
			sed -i -e "s/LIVE.*-${LIVE_KERNEL_FLAVOUR}/live/g" -e "s/vmlinuz-.*-${LIVE_KERNEL_FLAVOUR}/vmlinuz/g" -e "s/initrd.img-.*-${LIVE_KERNEL_FLAVOUR}/initrd.img/g" -e "s/LIVE/live/" tftpboot/pxelinux.cfg/default
		fi
		;;

	usb|hdd)
		# Copying syslinux
		mkdir -p binary
		cp chroot/usr/lib/syslinux/isolinux.bin binary/syslinux.bin
		cp -r "${LIVE_TEMPLATES}"/syslinux/* binary
		mv binary/isolinux.cfg binary/syslinux.cfg
		mv binary/isolinux.txt binary/syslinux.txt
		sed -i -e "s/isolinux.txt/syslinux.txt/" binary/syslinux.cfg

		# Copying splash screen
		if [ -n "${LIVE_SYSLINUX_SPLASH}" ]
		then
			if [ "${LIVE_SYSLINUX_SPLASH}" = "none" ]
			then
				rm -f binary/splash.rle
				sed -e "s/.*splash.*//" binary/syslinux.txt
			else
				cp -f "${LIVE_SYSLINUX_SPLASH}" binary/splash.rle
			fi
		fi

		# Configure syslinux templates
		sed -i -e "s#LIVE_KERNEL_LIVE#${LINUX}#" -e "s#LIVE_KERNEL_INSTALL#${LIVE_KERNEL_INSTALL}#" -e "s#LIVE_MEMTEST#${MEMTEST}#" binary/syslinux.cfg
		sed -i -e "s#LIVE_BOOTAPPEND#${LIVE_BOOTAPPEND}#" binary/syslinux.cfg
		sed -i -e "s/LIVE_DATE/`date +%Y%m%d`/" binary/f1.txt
		sed -i -e "s/LIVE_VERSION/${VERSION}/" binary/f10.txt

		# Remove unused files
		rm -f binary/pxelinux.cfg

		# Working arround syslinux 8.3 limitation
		if [ "`echo ${LIVE_KERNEL_FLAVOUR} | wc -w`" -gt "1" ]
		then
			for FLAVOUR in ${LIVE_KERNEL_FLAVOUR}
			do
				NUMBER=$(($NUMBER + 1))

				mv "${DESTDIR}"/vmlinuz-*-${FLAVOUR} "${DESTDIR}"/vmlinuz${NUMBER}
				mv "${DESTDIR}"/initrd.img-*-${FLAVOUR} "${DESTDIR}"/initrd${NUMBER}.img
				sed -i -e "s/LIVE.*-${FLAVOUR}/live${NUMBER}/g" -e "s/vmlinuz-.*-${FLAVOUR}/vmlinuz${NUMBER}/g" -e "s/initrd.img-.*-${FLAVOUR}/initrd${NUMBER}.img/g" -e "s/LIVE/live/" binary/syslinux.cfg
			done
		else
			mv "${DESTDIR}"/vmlinuz-*-${LIVE_KERNEL_FLAVOUR} "${DESTDIR}"/vmlinuz
			mv "${DESTDIR}"/initrd.img-*-${LIVE_KERNEL_FLAVOUR} "${DESTDIR}"/initrd.img
			sed -i -e "s/LIVE.*-${LIVE_KERNEL_FLAVOUR}/live/g" -e "s/vmlinuz-.*-${LIVE_KERNEL_FLAVOUR}/vmlinuz/g" -e "s/initrd.img-.*-${LIVE_KERNEL_FLAVOUR}/initrd.img/g" -e "s/LIVE/live/" binary/syslinux.cfg
		fi
		;;
esac

if [ -n "${PACKAGES}" ]
then
	# Removing packages
	case "${LH_APT}" in
		apt|apt-get)
			Chroot "apt-get remove --purge --yes ${PACKAGES}"
			;;

		aptitude)
			Chroot "aptitude purge --assume-yes ${PACKAGES}"
			;;
	esac
fi

# Creating stage file
Create_stagefile .stage/binary_syslinux