#!/bin/sh

# lh_binary_yaboot(1) - installs yaboot 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 yaboot into binary"
HELP=""
USAGE="${PROGRAM} [--force]"

Arguments "${@}"

Echo_debug "Init ${PROGRAM}"

# Reading configuration files
Read_conffile config/common
Read_conffile config/bootstrap
Read_conffile config/chroot
Read_conffile config/binary
Read_conffile config/source
Set_defaults

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

Breakpoint "binary_yaboot: Init"

# Requiring stage file
Require_stagefile .stage/bootstrap

# Checking stage file
Check_stagefile .stage/binary_yaboot

# Checking lock file
Check_lockfile .lock

# Creating lock file
Create_lockfile .lock

if [ "${LIVE_ARCHITECTURE}" != "powerpc" ] && [ "${LIVE_ARCHITECTURE}" != "ppc64" ]
then
	Echo_warning "skipping binary_yaboot, foreign architecture."
	exit 0
fi

# Check user 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

# Checking local templates
if [ -d config/templates/yaboot ]
then
	LIVE_TEMPLATES="config/templates"
fi

# Checking depends
Check_package chroot/usr/lib/yaboot/yaboot yaboot

# Installing depends
Install_package

case "${LH_INITRAMFS}" in
	casper)
		INITFS="casper"
		;;

	live-initramfs)
		INITFS="live"
		;;
esac

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

	net|usb-hdd|hdd)
		Echo_error "not supported, FIXME"
	;;
esac

# Temporary check for broken yaboot
if [ "${LIVE_BINARY_IMAGES}" = "iso" ]
then
	case "${LIVE_ARCHITECTURE}" in
		powerpc)
			DESTDIR="${DESTDIR}.ppc"
			;;
	esac
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 "${LIVE_USERNAME}" ]
then
	case "${LH_INITRAMFS}" in
		casper)
			LIVE_BOOTAPPEND="${LIVE_BOOTAPPEND} username=${LIVE_USERNAME}"
			;;

		live-initramfs)
			if [ "${LIVE_USERNAME}" != "user" ]
			then
				LIVE_BOOTAPPEND="${LIVE_BOOTAPPEND} username=${LIVE_USERNAME}"
			fi
			;;
	esac
fi

if [ -n "${LIVE_HOSTNAME}" ]
then
	case "${LIVE_INITRAMFS}" in
		casper)
			LIVE_BOOTAPPEND="${LIVE_BOOTAPPEND} hostname=${LIVE_HOSTNAME}"
			;;

		live-initramfs)
			if [ "${LIVE_HOSTNAME}" != "debian" ]
			then
				LIVE_BOOTAPPEND="${LIVE_BOOTAPPEND} username=${LIVE_HOSTNAME}"
			fi
			;;
	esac
fi

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

# Assembling kernel configuration
if [ "${LIVE_BINARY_IMAGES}" = "iso" ]
then
	DEFAULT_FLAVOUR="`echo ${LIVE_LINUX_FLAVOURS} | awk '{ print $1 }'`"
	LINUX="image=/`basename ${DESTDIR}`/`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR}`\n\tinitrd=/`basename ${DESTDIR}`/initrd.img-`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR} | sed -e 's/vmlinuz-//'`\n\tlabel=LIVE\n\tappend=\"boot=${INITFS} LIVE_BOOTAPPEND\"\n\tinitrd-size=1048576\n\tread-only"
else
	DEFAULT_FLAVOUR="`echo ${LIVE_LINUX_FLAVOURS} | awk '{ print $1 }'`"
	LINUX="image=`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR}`\n\tinitrd=initrd.img-`basename chroot/boot/vmlinuz-*${DEFAULT_FLAVOUR} | sed -e 's/vmlinuz-//'`\n\tlabel=LIVE\n\tappend=\"boot=${INITFS} LIVE_BOOTAPPEND\"\n\tinitrd-size=1048576\n\tread-only"
fi

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

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

case "${LIVE_BINARY_IMAGES}" in
	iso)
		# Copying yaboot
		mkdir -p binary/install
		cp chroot/usr/lib/yaboot/yaboot binary/install
		cp -r "${LIVE_TEMPLATES}"/yaboot/* binary/yaboot

		# Configure yaboot templates
		sed -i -e "s#LIVE_LINUX_LIVE#${LINUX}#" -e "s#LIVE_LINUX_INSTALL#${LIVE_LINUX_INSTALL}#" -e "s#LIVE_MEMTEST#${MEMTEST}#" binary/install/yaboot.conf
		sed -i -e "s#LIVE_BOOTAPPEND#${LIVE_BOOTAPPEND}#" binary/yaboot/yaboot.conf
		sed -i -e "s/LIVE_DATE/`date +%Y%m%d`/" -e "s/LIVE_VERSION/${VERSION}/" binary/yaboot/boot.msg

		# Working arround yaboot 8.3 limitation
		if [ "`echo ${LIVE_LINUX_FLAVOURS} | wc -w`" -gt "1" ]
		then
			for FLAVOUR in ${LIVE_LINUX_FLAVOURS}
			do
				NUMBER=$(($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/install/yaboot.conf
			done
		else
			mv "${DESTDIR}"/vmlinuz-*-${LIVE_LINUX_FLAVOURS} "${DESTDIR}"/vmlinuz
			mv "${DESTDIR}"/initrd.img-*-${LIVE_LINUX_FLAVOURS} "${DESTDIR}"/initrd.img
			sed -i -e "s/LIVE.*-${LIVE_LINUX_FLAVOURS}/live/g" -e "s/vmlinuz-.*-${LIVE_LINUX_FLAVOURS}/vmlinuz/g" -e "s/initrd.img-.*-${LIVE_LINUX_FLAVOURS}/initrd.img/g" -e "s/LIVE/live/" binary/install/yaboot.conf
		fi
		;;
esac

# Removing depends
Remove_package

# Creating stage file
Create_stagefile .stage/binary_yaboot