#!/bin/bash

# Cronjob needs to be on one line, spaced out for example/ in-case running cronjob from a script that just runs the below
# e.g. 0 0 * * * /home/nathan/backupScripts/docker_backup.sh \
# -c "duckdns homer" \
# -d /home/samba/share/Docker_prod \
# -b /home/nathan/testBack \
# -r pi2 \
# -R ~/backups/pi1/docker

while getopts d:b:r:R: flag
do
	case "${flag}" in
	    d) DIR=${OPTARG};; # Directory to backup
	    b) BACKUP_DIR=${OPTARG};; # Where the backup is on local host
	    r) REMOTE=${OPTARG};; # user@remote or alias (from SSH config), prefer to use alias, as it can deal with port differences
	    R) REMOTE_DIR=${OPTARG};; # Location of remote backup i.e. /backup/borg/HOSTNAME/docker (then /npm, /vaultwarden, etc.)
	esac
done

# /var/spool/cron/crontabs # Cron backup

# LOCAL
export BORG_REPO=$BACKUP_DIR
borg create ::{hostname}-{now} $DIR
#rdiff-backup $DIR/$i $BACKUP_DIR/$i # If a directory doesn't exist, it get created too

# Keep last 24 hours of backups, 7 daily backups (one a day/week), 4 weekly (one a week for a month), and 6 monthly, and 1 a year
borg prune						\
--glob-archives	'{hostname}-*'	\
--keep-hourly	24				\
--keep-daily	7				\
--keep-weekly	4

# Create the remote directory for backup if it doesn't exist
ssh $REMOTE mkdir -p $REMOTE_DIR

rsync -azh -e ssh \
	--delete \
	$BACKUP_DIR \
	$REMOTE:$REMOTE_DIR