#!/bin/bash
#####################################################################
##
## @File:       $RCSfile: make_images.sh,v $
## @Author:     Harald Krippel
## @Revision:   $Revision: 1.00 $
## @Date:       $Date: 2008-11-11 10:36:00 $
##
## @Description:
##
##      Create user images.
##
#####################################################################

# project path
declare -r DEL_TOOL_DIR="/home/harald/Digi/DigiEL-5.2"
declare -r DEL_PROJ_DIR="`pwd`"
declare -r VERBOSE=1
#
# Userfs images
#
declare CONFIG_IMAGE_JFFS2_BASENAME="userfs-cme9210js"
declare CONFIG_IMAGE_JFFS2_ERASEBLOCK="64"
#declare CONFIG_IMAGE_JFFS2_NOCLEANMARKERS =""
#declare CONFIG_IMAGE_JFFS2_COMPRESSION_NONE=""
declare CONFIG_IMAGE_JFFS2_COMPRESSION_PRIO="y"
#declare CONFIG_IMAGE_JFFS2_COMPRESSION_SIZE=""
declare CONFIG_IMAGE_JFFS2_COMPRESSION="priority"


declare -r SCRIPTNAME="`basename ${0}`"
declare -r OPTSTRING="r; userfs;"
declare -r IMAGES_DIR="${DEL_PROJ_DIR}/images"

declare USERFS_FLAG="false"

# just overwrite it with "y" if a userfs image has been created
declare USERFS_IMAGES_CREATED=""

declare TMPDIR

source ${DEL_TOOL_DIR}/scripts/getoptx.sh

###############################################################################
## Print script help and available options.
###############################################################################
usage() {
	printf "\nUsage: %s [OPTIONS]\n\n" ${SCRIPTNAME}
	printf "\t-r, --userfs:\tmake userfs images\n"
	printf "\n"
}

###############################################################################
## Print error message and exit
###############################################################################
error() {
	printf "\n*** Error: %s ***\n\n" "${1}"
	[ -d "${TMPDIR}" ] && rm -rf "${TMPDIR}";
	exit 1
}

warning() {
	printf "\n[ WARNING ] $1\n\n"
}


###############################################################################
## Creates a JFFS2 userfs image
## Usage:
## make_userfs_jffs2 [--silent]
###############################################################################
make_userfs_jffs2() {
	local JFFS2_PARAM="-q"

	[ -n "${VERBOSE}" ] && [ "x${1}" != "x--silent" ] && echo "Creating JFFS2 userfs images, basename: ${CONFIG_IMAGE_JFFS2_BASENAME}"


	if [ "x${CONFIG_IMAGE_JFFS2_NOCLEANMARKERS}" == "xy" ]; then
		JFFS2_PARAM="${JFFS2_PARAM} -n"
		SUMTOOL_PARAM="-n"
	fi
	JFFS2_PARAM="${JFFS2_PARAM} -m ${CONFIG_IMAGE_JFFS2_COMPRESSION}"

	IMAGE_BASENAME="`echo ${CONFIG_IMAGE_JFFS2_BASENAME} | cut -d. -f1`"
	for i in ${CONFIG_IMAGE_JFFS2_ERASEBLOCK}; do
		TMPFILE=`mktemp -p ${DEL_PROJ_DIR}`
		"${DEL_TOOL_DIR}"/usr/bin/mkfs.jffs2 ${JFFS2_PARAM} -e "${i}" -d "${USERFS_DIR}" -o "${TMPFILE}"
		"${DEL_TOOL_DIR}"/usr/bin/sumtool ${SUMTOOL_PARAM} -e "${i}" -i "${TMPFILE}" -o "${IMAGES_DIR}/${IMAGE_BASENAME}-${i}.jffs2"
		rm -f "${TMPFILE}"
		echo "--> JFFS2 userfs image: ${IMAGES_DIR}/${IMAGE_BASENAME}-${i}.jffs2"
	done
}




while getoptex "${OPTSTRING}" "${@}" ; do
	case ${OPTOPT} in
		r|userfs)
		   USERFS_FLAG="true"
		;;
	esac
done

###############################################################################
## Sanity checks. Check that all is correct or exit.
###############################################################################
if [ ${#} -eq 0 ] ; then
	usage
	exit 1
fi

#source ${DEL_PROJ_DIR}/build/.config-${DEL_PLATFORM}
TMPDIR=`mktemp -d -p ${DEL_PROJ_DIR}`


###############################################################################
## if USERFS_FLAG is active, create userfs images.
###############################################################################
if "${USERFS_FLAG}"; then
	declare -r USERFS_DIR="${DEL_PROJ_DIR}/userfs"

	make_userfs_jffs2
	USERFS_IMAGES_CREATED="y"

	if [ -n "${VERBOSE}" ]; then
		if [ -n "${USERFS_IMAGES_CREATED}" ]; then
			echo "Userfs images created."
		else
			echo "No userfs images created (nothing selected?)."
		fi
	fi
fi

rm -rf ${TMPDIR}

exit 0