#!/bin/sh

## live-build(7) - System Build Scripts
## Copyright (C) 2016-2020 The Debian Live team
## Copyright (C) 2006-2015 Daniel Baumann <mail@daniel-baumann.ch>
##
## This program 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
[ -e "${LIVE_BUILD}/scripts/build.sh" ] && . "${LIVE_BUILD}/scripts/build.sh" || . /usr/lib/live/build.sh

# Setting static variables
DESCRIPTION="Build iso source image"
USAGE="${PROGRAM} [--force]"

# Processing arguments and configuration files
Init_config_data "${@}"

if [ "${LB_SOURCE}" != "true" ]
then
	exit 0
fi

case "${LB_SOURCE_IMAGES}" in
	iso*)
		;;

	*)
		exit 0
		;;
esac

Echo_message "Begin building source iso image..."

# Requiring stage file
Require_stagefiles config source_debian

# Checking stage file
Check_stagefile

# Acquire lock file
Acquire_lockfile

# Checking depends
Check_package chroot /usr/bin/xorriso xorriso

# Installing depends
Install_package

# Remove old iso image
if [ -f ${LIVE_IMAGE_NAME}-source.iso ]
then
	rm -f ${LIVE_IMAGE_NAME}-source.iso
fi

# Handle xorriso generic options
XORRISO_OPTIONS="-as mkisofs -r -J -joliet-long -l -cache-inodes"

# Handle xorriso live-build specific options
if [ "${_QUIET}" = "true" ]
then
	XORRISO_OPTIONS="${XORRISO_OPTIONS} -quiet"
fi

if [ "${_VERBOSE}" = "true" ]
then
	XORRISO_OPTIONS="${XORRISO_OPTIONS} -v"
fi

if [ -n "${LB_ISO_APPLICATION}" ] && [ "${LB_ISO_APPLICATION}" != "none" ]
then
	XORRISO_OPTIONS="${XORRISO_OPTIONS} -A \"${LB_ISO_APPLICATION}\""
fi

if [ -n "${LB_ISO_PREPARER}" ] && [ "${LB_ISO_PREPARER}" != "none" ]
then
	XORRISO_OPTIONS="${XORRISO_OPTIONS} -p \"${LB_ISO_PREPARER}\""
fi

if [ -n "${LB_ISO_PUBLISHER}" ] && [ "${LB_ISO_PUBLISHER}" != "none" ]
then
	XORRISO_OPTIONS="${XORRISO_OPTIONS} -publisher \"${LB_ISO_PUBLISHER}\""
fi

if [ -n "${LB_ISO_VOLUME}" ] && [ "${LB_ISO_VOLUME}" != "none" ]
then
	XORRISO_OPTIONS="${XORRISO_OPTIONS} -V \"${LB_ISO_VOLUME}\""
fi

# Set an explicit modification date
XORRISO_OPTIONS="${XORRISO_OPTIONS} --modification-date=$(date --utc --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y%m%d%H%m%S00)"

# Moving image
mv source chroot

cat > chroot/source.sh << EOF
#!/bin/sh
xorriso ${XORRISO_OPTIONS} -o source.iso source
EOF

Chroot chroot "sh source.sh"

# Move image
mv chroot/source ./
mv chroot/source.iso ${LIVE_IMAGE_NAME}-source.iso
rm -f chroot/source.sh

# Removing depends
Remove_package

# Creating stage file
Create_stagefile