#!/bin/bash
#
# OER Foundation backup routine: Restic
# 20190930 dave@oerfoundation.org
#
NICE='ionice -c2 nice -n19'
CMD=/usr/bin/restic
SCR=$0
CONF=site.conf
DIR=`dirname $SCR`
SCRNAME=`basename $SCR`
if [ -f $DIR/$CONF ] ; then 
    source $DIR/$CONF
else 
    echo "You need to create a site.conf in the same directory as $SCRNAME, i.e. $DIR."
    exit 1
fi
DST=sftp:try.oerfoundation.org:/backup/make
PW=/root/restic.pw
TAG="daily"
LOG=/var/log/restic.log
ARGS="-r $DST --password-file $PW backup --tag $TAG --exclude-file=/restic.excludes --files-from /restic.files"
CLEAN="-r $DST --password-file $PW forget --tag $TAG --keep-daily 7 --keep-weekly 5 --keep-monthly 12 --keep-yearly 7"
# create a snapshot
DATE=`date`
echo "running snapshot $DATE" >> $LOG
$NICE $CMD $ARGS >> $LOG
# remove old snapshots
DATE=`date`
echo "running cleanup $DATE" >> $LOG
$NICE $CMD $CLEAN >> $LOG
# leave extra spaces
DATE=`date`
echo "done $DATE" >> $LOG
echo "" >> $LOG
echo "" >> $LOG