doRestore

#!/system/bin/sh
#
# doRestore
#
#
# 2011 nubecoder
# http://www.nubecoder.com/
#
# Original concept from the BonsaiROM
# www.bonsai4android.com
#
# Parts used from Chainfire's XDA thread:
# Output to recovery UI from shell script: http://forum.xda-developers.com/showthread.php?t=1023150
#

#defines
OLD_PATH=$PATH
export PATH="/data/local/tmp"
BB="$PATH/busybox"
BACKUP_PATH="/sdcard/backup-restore"
NAME_FILE="$BACKUP_PATH/name"
LOG_FILE="$BACKUP_PATH/log.restore"
LOGGING=true
VERBOSE=true
TIME_START=$($BB date +%s)
OUTFD=$($BB ps | $BB grep -v "grep" | $BB grep -o -E "update_binary(.*)" | $BB cut -d " " -f 3);

#functions
FIX_BROKEN_RECOVERIES()
{
	$BB --install -s $PATH
	$BB sync
	CLEAR_LOG
	LOG_PRINT "Installed temp busybox to: $PATH"
}
LOG_MESSAGE()
{
	if [ $LOGGING = true ] ; then
		echo "$1" >>"$LOG_FILE"
	fi
}
LOG_PRINT()
{
	LOG_MESSAGE "$1"
	UI_PRINT "$1"
}
CLEAR_LOG()
{
	rm -f "$LOG_FILE"
}
UI_PRINT()
{
	if [ ${OUTFD} ] ; then
		echo "ui_print ${1} " 1>&$OUTFD;
		echo "ui_print " 1>&$OUTFD;
	else
		if [ "${#}" -lt 1 ] ; then
			echo " ";
		else
			echo "${1}";
		fi;
	fi;
}
END_TIME()
{
	TIME_END=$(date +%s)
}
RESTORE_PATH()
{
	export PATH=$OLD_PATH
}
GET_BACKUP_NAME()
{
	if [ ! -f $NAME_FILE ] ; then
		echo "backup" >$NAME_FILE
		LOG_PRINT "Created: $NAME_FILE"
	else
		LOG_PRINT "Using: $NAME_FILE"
	fi
	BACKUP_FILE="$BACKUP_PATH/$(cat $NAME_FILE).tar.gz"
	LOG_MESSAGE "Backup Name: $BACKUP_FILE"
}
CHECK_READY()
{
	if [ ! -f $BACKUP_FILE ] ; then
		LOG_PRINT "Fatal error: Have you done a backup?"
		return 1
	else
		GET_BACKUP_NAME
		return 0
	fi
}
WIPE_DATA_FOLDER()
{
	LOG_PRINT "Erasing files in /data..."
	local DATA_PARTS="/data/*"
	for DATA_PART in $DATA_PARTS ; do
		if [ "$DATA_PART" != "/data/local" ] ; then
			rm -rf "$DATA_PART"
			if [ $VERBOSE = true ] ; then
				LOG_MESSAGE "Removing file: $DATA_PART"
			fi
		else
			local DATA_LOCAL_PARTS="$DATA_PART/*"
			for DATA_LOCAL_PART in $DATA_LOCAL_PARTS ; do
				if [ "$DATA_LOCAL_PART" != "$PATH" ] ; then
					rm -rf "$DATA_LOCAL_PART"
					if [ $VERBOSE = true ] ; then
						LOG_MESSAGE "Removing file: $DATA_LOCAL_PART"
					fi
				fi
			done
		fi
	done
}
EXTRACT_BACKUP()
{
	LOG_PRINT "Beginning tar extraction..."
	cd /
	if [ $LOGGING = true ] ; then
		tar -xz -f "$BACKUP_FILE" 2>&1 | tee -a $LOG_FILE
	else
		tar -xz -f "$BACKUP_FILE"
	fi
	if [ $? = 0 ] ; then
		if [ -d /data/app ] ; then
			chmod 0755 /data/app
		fi
		LOG_PRINT "Extracted: $BACKUP_FILE"
	else
		LOG_PRINT "Error: restore failed!"
	fi
}

#main
FIX_BROKEN_RECOVERIES
CHECK_READY
if [ $? = 0 ] ; then
#	WIPE_DATA_FOLDER
	EXTRACT_BACKUP
	END_TIME
	LOG_PRINT "Restore took: $(($TIME_END - $TIME_START)) seconds."
fi
RESTORE_PATH
exit