#!/bin/sh

BACKUP_DEST=/Volumes/MAC_BACKUP/rsync
BACKUP_SRC=/
EXCLUDES_FILE=/usr/local/bin/backup_excludes.txt

LOG_FILE=$BACKUP_DEST/log-`date +f'%F-%H_%M'`.txt

VERBOSITY="-v"
UPDATE_ONLY="-u"
#DRY_RUN="-n"

if [ ! -d $BACKUP_DEST ] ; then
	echo "Target backup directory $BACKUP_DEST does not exist"
	exit 1
fi

if [ ! -d $BACKUP_SRC ] ; then
	echo "Backup source directory $BACKUP_SRC is not accessible"
	exit 1
fi

if [ ! -f $EXCLUDES_FILE ] ; then
	echo "Excludes file $EXCLUDES_FILE cannot be found"
	exit 1
fi

sudo touch $LOG_FILE
sudo chown $USER $LOG_FILE

echo "Making backup of $BACKUP_SRC to $BACKUP_DEST using the excludes list from $EXCLUDES_FILE..."

sudo rsync -rRlpogtSxEC --exclude-from=$EXCLUDES_FILE --progress $VERBOSITY $UPDATE_ONLY $DRY_RUN $BACKUP_SRC $BACKUP_DEST | tee $LOG_FILE