#! /bin/bash
set -euo pipefail

# wrapper around borgbackup
# need a borg.conf file - see example file
# alternate conf file can be passed through BORG_CONF env variable
# need passwordless ssh access if using remote repo

if [ -v BORG_CONF ] ; then
  conf=$BORG_CONF
else
  conf=$(dirname $0)/borg.conf
fi

if [ ! -f $conf ] ; then
   echo config file not found
   exit 5
fi

source $conf

TODAY=$(date "+%Y%m%d")

case $1 in
   ("list")
      if [ -v 2 ] ; then
         ${borg} list  ${REPOSITORY}::${2}
      ret=$?
      else
         ${borg} list  $REPOSITORY
      ret=$?
      fi
      ;;
   ("check")
         shift
# if arg: check archive, if not: check whole repo
         if [ $# -eq 1 ] ; then
            target=${REPOSITORY}::${1}
         else
            target=${REPOSITORY}
         fi
      ${borg} check -v ${target}
      ret=$?
      ;;
   ("extract")
      ${borg} extract ${REPOSITORY}::${2} ${3}
      ret=$?
      ;;

   (info)
      yesterday=$(date -d "yesterday 13:00 " '+%Y%m%d')
      yesterday_archive=${REPOSITORY}::$(hostname)_${yesterday}
      $borg check -v $yesterday_archive
      ret=$?
      ;;
   (*)
      ${borg} create  --compression lzma,5 $REPOSITORY::$(hostname)_${TODAY} ${src}
      ret=$?
		test -d $(dirname $statusfile) && echo $ret > $statusfile
      if [ $ret -eq 0 ] ; then
         ${borg} prune  $REPOSITORY --prefix $(hostname)_ --keep-daily=${rotate}
      fi
      ;;
esac
exit $ret