#!/bin/sh

## live-build(7) - System Build Scripts
## Copyright (C) 2006-2011 Daniel Baumann <daniel@debian.org>
##
## live-build 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

# Including common functions
. "${LB_BASE:-/usr/share/live/build}"/scripts/build.sh

# Setting static variables
DESCRIPTION="$(Echo 'installs syslinux into binary')"
HELP=""
USAGE="${PROGRAM} [--force]"

Arguments "${@}"

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

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

Echo_message "Begin installing syslinux..."

# Requiring stage file
Require_stagefile .stage/config .stage/bootstrap

# Checking stage file
Check_stagefile .stage/binary_syslinux

# Checking lock file
Check_lockfile .lock

# Creating lock file
Create_lockfile .lock

# Check architecture
Check_architectures amd64 i386
Check_crossarchitectures

case "${LB_BUILD_WITH_CHROOT}" in
	true)
		# Checking depends
		Check_package chroot/usr/bin/syslinux syslinux
		Check_package chroot/usr/share/syslinux/themes/${LB_SYSLINUX_THEME} syslinux-themes-${LB_SYSLINUX_THEME}

		case "${LB_MODE}" in
			ubuntu)
				Check_package chroot/usr/share/gfxboot-theme-ubuntu/bootlogo.tar.gz gfxboot-theme-ubuntu
				;;
		esac

		# Restoring cache
		Restore_cache cache/packages_binary

		# Installing depends
		Install_package
		;;
esac

# Assembling image specifics
case "${LB_BINARY_IMAGES}" in
	iso*)
		_BOOTLOADER="isolinux"
		_SUFFIX="binary/isolinux"
		;;

	net*)
		_BOOTLOADER="pxelinux"
		_SUFFIX="tftpboot"
		;;

	usb*)
		_BOOTLOADER="syslinux"
		_SUFFIX="binary/syslinux"
		;;
esac

# Copying files
mkdir -p ${_SUFFIX}

case "${LB_BUILD_WITH_CHROOT}" in
	true)
		# Copy in two steps since the theme can have absolute symlinks and would therefore not be dereferenced correctly
		Chroot chroot "cp -aL /usr/share/syslinux/themes/${LB_SYSLINUX_THEME}/${_BOOTLOADER}-live /root/tmp"

		case "${LB_MODE}" in
			ubuntu)
				Chroot chroot "tar xzf /usr/share/gfxboot-theme-ubuntu/bootlogo.tar.gz -C /root/tmp"
				;;
		esac

		mv chroot/root/tmp/* ${_SUFFIX}
		rmdir chroot/root/tmp
		;;

	false)
		cp -aL /usr/share/syslinux/themes/${LB_SYSLINUX_THEME}/${_BOOTLOADER}-live/* ${_SUFFIX}

		case "${LB_MODE}" in
			ubuntu)
				tar xzf /usr/share/gfxboot-theme-ubuntu/bootlogo.tar.gz -C ${_SUFFIX}
				;;
		esac
		;;
esac

# Configuring files
if [ -e ${_SUFFIX}/live.cfg ]
then
	sed -i -e "s|@LB_BOOTAPPEND_LIVE@|${LB_BOOTAPPEND_LIVE}|g" \
	${_SUFFIX}/live.cfg

	case "${LB_INITRAMFS}" in
		casper)
			sed -i -e "s|boot=live|boot=casper|" \
			    ${_SUFFIX}/live.cfg
			;;
	esac
fi


if [ -e ${_SUFFIX}/install.cfg ]
then
	sed -i -e "s|@LB_BOOTAPPEND_INSTALL@|${LB_BOOTAPPEND_INSTALL}|g" \
	${_SUFFIX}/install.cfg
fi

case "${LB_BUILD_WITH_CHROOT}" in
	true)
		# Saving cache
		Save_cache cache/packages_binary

		# Removing depends
		Remove_package
		;;
esac

# Creating stage file
Create_stagefile .stage/binary_syslinux