#!/bin/bash

. $(dirname $0)/borg-backup-env

errorexit() {

    mail -s 'BorgBackup' root < $LOG

    exit $?

}

##

## write output to logfile

##

exec > >(tee -i ${LOG})

exec 2>&1

echo "###### Backup started: $(date) ######"

##

## You can do some tasks before starting the backup here, for example

## - create a list of installed software

## - create database dumps

##

##

## Transfer files to repository

##

borg create -v --stats                   \

    --compression zstd,18                \

    $REPOSITORY::'{now:%Y-%m-%d_%H-%M}'  \

    /                                    \

    --exclude /backup                    \

    --exclude /dev                       \

    --exclude /lost+found                \

    --exclude /mnt                       \

    --exclude /proc                      \

    --exclude /run                       \

    --exclude /sys                       \

    --exclude /var/run                   \

|| { echo "Error $? during backup, aborting" ; errorexit 1; }

echo

echo

echo "Deleting old backups..."

borg prune                          \

    --stats                         \

    --list                          \

    --keep-hourly   12              \

    --keep-daily    7               \

    --keep-weekly   4               \

    --keep-monthly  6               \

|| { echo "Error $? while deleting old backups, aborting" ; errorexit 2; }

echo "###### Backup finished: $(date) ######"

errorexit 0