borg backup script

netborgbackup.sh

#!/bin/sh
# Quick and easy borg backup for personal use
# Consider it MIT or Apache licensed as necessary.

if [ "x$1" = "x" ]; then
	echo "Specify a folder to back up on the command-line."
	exit 1
fi

if [ -f $HOME/.config/netborgbackup ]; then
	. $HOME/.config/netborgbackup
else
	. /etc/sysconfig/netborgbackup
fi

export BORG_PASSPHRASE

OPTIONS="--stats"

if tty -s; then
    OPTIONS="$OPTIONS --verbose --progress"
fi

EXCLUDES="/etc/sysconfig/backup_exclude.lst"
if [ -f $HOME/.config/backup_exclude.lst ]; then
	EXCLUDES="$HOME/.config/backup_exclude.lst"
fi

REPO_URI="$BORG_USER@$BACKUP_SERVER:/backups/$BORG_REPO"

# Use current date timestamp as backup name
borg create $OPTIONS \
	--one-file-system \
	--exclude-from="$EXCLUDES" \
	$REPO_URI::$(date +%Y%m%d%H%M%S) "$@"

borgret=$?
if [ $borgret -ne 0 ]; then
	echo "Backup failed: $borgret"
	exit $borgret
fi

KEEP_OPTIONS=""
if [ ! "X$KEEP_DAILY" = "x" ]; then
	KEEP_OPTIONS="$KEEP_OPTIONS --keep-daily=$KEEP_DAILY"
fi
if [ ! "x$KEEP_WEEKLY" = "x" ]; then
	KEEP_OPTIONS="$KEEP_OPTIONS --keep-weekly=$KEEP_WEEKLY"
fi
if [ ! "x$KEEP_MONTHLY" = "x" ]; then
	KEEP_OPTIONS="$KEEP_OPTIONS --keep-monthly=$KEEP_MONTHLY"
fi
if [ ! "x$KEEP_YEARLY" = "x" ]; then
	KEEP_OPTIONS="$KEEP_OPTIONS --keep-yearly=$KEEP_YEARLY"
fi

if [ "x$KEEP_OPTIONS" = "x" ]; then
	# No keep options, no prune
	exit 0
fi

borg prune $OPTIONS \
	$KEEP_OPTIONS $REPO_URI

# To automate, create borgbackup.timer:
# [Unit]
# Description=Run borg backup every night
# [Timer]
# OnCalendar=*-*-* 02:30:00
# [Install]
# WantedBy=multi-user.target
#
# And borgbackup.service:
# [Unit]
# Description=borg backup service
# [Service]
# Type=oneshot
# ExecStart=/location/to/borgbackup.sh

# These can be in your user systemd folder or /etc/systemd/system/ depending.
# Test by `systemctl start borgbackup` ... then `systemctl enable borgbackup.timer`