#!/bin/sh

# Duplicity wrapper
#
# add to crontab:
# 0 0 * * * /bin/sh /usr/local/sbin/backup-host.sh

set -e

PASSPHRASE="long_passphrase"
DISK_USER="login@yandex.ru"
DISK_PASSWORD=""
BACKUP_DIR=/
INCLUDES_EXCLUDES="\
  --exclude '/home/*/Downloads' \
  --exclude '/home/*/.cache' \
  --exclude '/home/*/tmp' \
  --exclude '/home/*/VirtualBox VMs' \
  --exclude '/home/*/mnt' \
  --exclude '/root/.cache' \
  --exclude '/root/tmp' \
  --include '/home' \
  --include '/root' \
  --include '/etc' \
  --include '/srv' \
  --include '/var' \
  --exclude '**'"
DEST=webdavs://${DISK_USER}@webdav.yandex.ru/Backup/$(hostname)

export PASSPHRASE
export FTP_PASSWORD=${DISK_PASSWORD}

DUPLICITY_CMD="duplicity \
  -v2 \
  --ssl-cacert-file /etc/ssl/certs/ca-certificates.crt"

CLEAN_CMD="${DUPLICITY_CMD} \
  remove-older-than 2M --force \
  ${DEST}"

BACKUP_CMD="${DUPLICITY_CMD} \
  --full-if-older-than 1M \
  ${INCLUDES_EXCLUDES} \
  ${BACKUP_DIR} \
  ${DEST}"

VERIFY_CMD="${DUPLICITY_CMD} \
  verify \
  ${INCLUDES_EXCLUDES} \
  ${DEST} \
  ${BACKUP_DIR}"

RESTORE_CMD="${DUPLICITY_CMD} \
  ${DEST} \
  ${PWD}"

echo ${CLEAN_CMD}; eval ${CLEAN_CMD}
echo ${BACKUP_CMD}; eval ${BACKUP_CMD}
echo ${VERIFY_CMD}; eval ${VERIFY_CMD}
# echo ${RESTORE_CMD}; eval ${RESTORE_CMD}


unset PASSPHRASE
unset FTP_PASSWORD