#!/bin/sh
#
# Script de sauvegarde.
#
# Envoie les sauvegardes sur un serveur distant, via le programme borg.
# Les sauvegardes sont chiffrées
#
# http://borgbackup.readthedocs.or/g
#
# Est lancé quotidiennement.

set -e

ts_log()
{
    echo `date '+%Y-%m-%d %H:%m:%S'` $1 >> ${LOG_PATH}
    #  su {{ me[0].username }} -c "DISPLAY=:0 notify-send 'Borgbackup' '`date '+%Y-%m-%d %H:%m:%S'`' $1"
    # su lafrite -c "DISPLAY=:0 notify-send 'Borgbackup' '`date '+%Y-%m-%d %H:%m:%S'` $1'"
}

# Trap on non-zero exit
# trap '[ "$?" -eq 0 ] || cleanup' EXIT

BACKUP_DATE=`date +%Y-%m-%d`
LOG_PATH=/var/log/borg-backup.log

BORG=/usr/bin/borg
# Fichier dans lequel est stocké la passphrase du dépôt borg 
# (attention aux permissions)
export BORG_PASSPHRASE="`cat /root/.borg/passphrase`"
BORG_REPOSITORY={{ borg_backup_repo }}
# BORG_REPOSITORY=/media/backup/Choux
BORG_ARCHIVE=${BORG_REPOSITORY}::${BACKUP_DATE}

BACKUPED_DIR="/media/documents /home/"

ts_log "Starting new backup ${BACKUP_DATE}..."

ts_log "Pushing archive ${BORG_ARCHIVE}"
$BORG create \
     -v --stats --compression none \
     $BORG_ARCHIVE \
     $BACKUPED_DIR \
     --exclude 'lost+found' \
     --exclude '/home/*/.cache' \
     --exclude '/home/*/.ccache'
     >> ${LOG_PATH} 2>&1

ts_log "Rotating old backups."
$BORG prune -v $BORG_REPOSITORY \
      --keep-daily=7 \
      --keep-weekly=4 \
      --keep-monthly=6 \
      >> ${LOG_PATH} 2>&1

ts_log "Backup done"