#!/bin/sh

# lh_source_usb-hdd(1) - build source image
# 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="build source image"
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

Breakpoint "source_usb-hdd: Init"

if [ "${LIVE_SOURCE}" != "enabled" ]
then
	exit 0
fi

for IMAGE in ${LIVE_SOURCE_IMAGES}
do
	if [ "${IMAGE}" = "usb-hdd" ]
	then
		# Requiring stage file
		Require_stagefile .stage/source_debian

		# Checking stage file
		Check_stagefile .stage/source_usb-hdd

		# Checking lock file
		Check_lockfile .lock

		# Creating lock file
		Create_lockfile .lock

		# Checking depends
		Check_package chroot/sbin/mkdosfs dosfstools
		Check_package chroot/sbin/parted parted

		# Installing depends
		Install_package

		# Remove old source
		if [ -f source.img ]
		then
			rm -f source.img
		fi

		# Everything which comes here needs to be cleaned up,
		DU_DIM="`du -ms source | cut -f1`"
		REAL_DIM="`expr ${DU_DIM} + ${DU_DIM} / 50`" # Just 2% more to be sure, need something more sophistcated here...
		dd if=/dev/zero of=source.img bs=1024k count=${REAL_DIM}
		FREELO="`${LH_LOSETUP} -f`"
		if [ ! -b chroot/${FREELO} ]
		then
			MAKEDEV="true"

			mv chroot/dev chroot/dev.tmp
			find /dev | cpio -dmpu chroot
		fi

		echo "!!! The following error/warning messages can be ignored !!!"
		lh_losetup $FREELO source.img 0
		Chroot "parted -s ${FREELO} mklabel msdos" || true
		Chroot "parted -s ${FREELO} mkpartfs primary fat16 0.0 100%" || true
		Chroot "parted -s ${FREELO} set 1 lba off" || true
		${LH_LOSETUP} -d ${FREELO}

		lh_losetup $FREELO source.img 1
		Chroot " mkfs.vfat -F 16 -n DEBIAN_LIVE ${FREELO}"
		mkdir -p source.tmp
		${LH_ROOT_COMMAND} mount ${FREELO} source.tmp
		cp -r source/* source.tmp
		${LH_ROOT_COMMAND} umount source.tmp
		rmdir source.tmp
		${LH_LOSETUP} -d ${FREELO}
		echo "!!! The above error/warning messages can be ignored !!!"

		if [ -n "${MAKEDEV}" ]
		then
			rm -f chroot/dev
			mv chroot/dev.tmp chroot/dev
		fi

		# Removing depends
		Remove_package

		# Creating stage file
		Create_stagefile .stage/source_usb-hdd
	fi
done