doBackup

#!/system/bin/sh
#
# doBackup
#
#
# 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="$BACKUP_PATH/name"
INCLUDE_FILE="$BACKUP_PATH/include"
EXCLUDE_FILE="$BACKUP_PATH/exclude"
LOG_FILE="$BACKUP_PATH/log.backup"
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"
	CREATE_BACKUP_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 [ ! -d /data/data ] || [ ! -d /system/media ] ; then
		LOG_PRINT "Fatal error: Are /data and /system mounted?"
		return 1
	else
		GET_BACKUP_NAME
		return 0
	fi
}
CREATE_BACKUP_PATH()
{
	if [ ! -d $BACKUP_PATH ] ; then
		mkdir $BACKUP_PATH
		LOG_PRINT "Created: $BACKUP_PATH"
	fi
}
CREATE_INCLUDE_FILE()
{
	if [ ! -f $INCLUDE_FILE ] ; then
		local PARTS="$PARTS data/"
		local PARTS="$PARTS system/media/"
		if [ -f /system/etc/profile ] ; then
			local PARTS="$PARTS system/etc/profile"
		fi
		if [ -f /system/etc/bash.bashrc ] ; then
			local PARTS="$PARTS system/etc/bash.bashrc"
		fi
		if [ -f /system/etc/PowerOn.wav ] ; then
			local PARTS="$PARTS system/etc/PowerOn.wav"
		fi
		if [ -d /system/customize/resource ] ; then
			local PARTS="$PARTS system/customize/resource/"
		fi
		for PART in $PARTS ; do
			if [ $VERBOSE = true ] ; then
				LOG_MESSAGE "Including: $PART"
			fi
			echo $PART >>$INCLUDE_FILE
		done
		LOG_PRINT "Created: $INCLUDE_FILE"
	else
		LOG_PRINT "Using: $INCLUDE_FILE"
	fi
}
CREATE_EXCLUDE_FILE()
{
	if [ ! -f $EXCLUDE_FILE ] ; then
		echo "data/data/*/cache/" >>$EXCLUDE_FILE
		if [ $VERBOSE = true ] ; then
			LOG_MESSAGE "Excluding: data/data/*/cache/"
		fi
		local PARTS="data/anr/"
		local PARTS="$PARTS data/backup/"
		local PARTS="$PARTS data/dalvik-cache/"
		local PARTS="$PARTS data/dontpanic/"
		local PARTS="$PARTS data/dump/"
		local PARTS="$PARTS data/fota/"
		local PARTS="$PARTS data/jit/"
		local PARTS="$PARTS data/local/tmp/"
		local PARTS="$PARTS data/log/"
		local PARTS="$PARTS data/lost+found/"
		local PARTS="$PARTS data/system/batterystats.bin"
		local PARTS="$PARTS data/system/dropbox/"
		local PARTS="$PARTS data/system/firstfroyo"
		local PARTS="$PARTS data/system/uiderrors.txt"
		local PARTS="$PARTS data/tmp/"
		local PARTS="$PARTS data/tombstones/"
		local PARTS="$PARTS system/media/audio/ui/"
		for PART in $PARTS ; do
			if [ $VERBOSE = true ] ; then
				LOG_MESSAGE "Excluding: $PART"
			fi
			echo $PART >>$EXCLUDE_FILE
		done
		LOG_PRINT "Created: $EXCLUDE_FILE"
	else
		LOG_PRINT "Using: $EXCLUDE_FILE"
	fi
}
CREATE_BACKUP()
{
	LOG_PRINT "Beginning tar creation..."
	cd /
	if [ $LOGGING = true ] ; then
		tar -cz -T $INCLUDE_FILE -X $EXCLUDE_FILE -f "$BACKUP_FILE" 2>&1 | tee -a $LOG_FILE
	else
		tar -cz -T $INCLUDE_FILE -X $EXCLUDE_FILE -f "$BACKUP_FILE"
	fi
	if [ $? = 0 ] ; then
		LOG_PRINT "Created: $BACKUP_FILE"
	else
		LOG_PRINT "Error: backup failed!"
	fi
}

#main
FIX_BROKEN_RECOVERIES
CHECK_READY
if [ $? = 0 ] ; then
	CREATE_BACKUP_PATH
	CREATE_INCLUDE_FILE
	CREATE_EXCLUDE_FILE
	CREATE_BACKUP
	END_TIME
	LOG_PRINT "Backup took: $(($TIME_END - $TIME_START)) seconds."
fi
RESTORE_PATH
exit