#!/bin/bash
 
KEY="foobar"
DIRS="/etc /home/bjoern"
BACKUP_DIR="/backup/ftp-raw"
BACKUP_TEMP="/backup/temp"
BACKUP_CATALOGUES="/backup/catalogues"
DATE_STRING=`date +"%Y-%m-%d-%H-%M"`
 
FTP_USER="foo"
FTP_PASS="bar"
FTP_IP="123.123.123.123"
 
date
 
if ! test -e $BACKUP_DIR;then
    mkdir -p $BACKUP_DIR
fi
 
if ! test -e $BACKUP_TEMP;then
    mkdir -p $BACKUP_TEMP
fi
 
if ! test -e $BACKUP_CATALOGUES;then
    mkdir -p $BACKUP_CATALOGUES
fi
 
for i in $DIRS
do
    echo "Backing up $i"
    NAME=`echo $i | sed -s "s/\//_/g"`
    LATEST=`ls $BACKUP_CATALOGUES/*.1.dar 2>/dev/null | grep $NAME | tail -n1| sed -s "s/\.1\.dar//"`
    if [[ $LATEST ]];then
        NAME_NEW="$NAME-$DATE_STRING-diff"
        echo "Latest was $LATEST"
        dar -K bf:$KEY -R $i -c $BACKUP_TEMP/$NAME_NEW -A $LATEST -X *.log
        if [[ $? -eq 0 || $? -eq 11 ]];then
            echo "Backup of $i done."
        else
            echo "Backup failed."
            continue
        fi
        dar -J bf:$KEY -C $BACKUP_CATALOGUES/$NAME_NEW-catalogue -A $BACKUP_TEMP/$NAME_NEW
        if [[ $? -eq 0 || $? -eq 11 ]];then
            echo "Catalogue created."
        else
            continue
            echo "Catalogue failed."
        fi
        lftp ftp://$FTP_USER:$FTP_PASS@$FTP_IP/ -e "put $BACKUP_TEMP/$NAME_NEW.1.dar;exit"
        if [[ $? -eq 0 ]];then
            rm -f $BACKUP_TEMP/$NAME_NEW.1.dar
        fi
    else
        NAME_NEW="$NAME-$DATE_STRING"
        echo "No previous backup found"
        dar -K bf:$KEY -R $i -c $BACKUP_TEMP/$NAME_NEW -X *.log
        if [[ $? -eq 0 || $? -eq 11 ]];then
            echo "Backup of $i done."
        else
            echo "Backup failed."
            continue
        fi
        dar -J bf:$KEY -C $BACKUP_CATALOGUES/$NAME_NEW-catalogue -A $BACKUP_TEMP/$NAME_NEW
        if [[ $? -eq 0 || $? -eq 11 ]];then
            echo "Catalogue created."
        else
            continue
            echo "Catalogue failed."
        fi
        lftp ftp://$FTP_USER:$FTP_PASS@$FTP_IP/ -e "put $BACKUP_TEMP/$NAME_NEW.1.dar;exit"
        if [[ $? -eq 0 ]];then
            rm -f $BACKUP_TEMP/$NAME_NEW.1.dar
        fi
    fi
done