#!/usr/bin/env bash

data_dir='/mnt/data1/gitea/repositories'
snapshot_dir="${data_dir}.snapshot"

# Read-only snapshot for atomic backup
btrfs subvolume snapshot -r "$data_dir" "$snapshot_dir" || exit $?

/usr/local/bin/restic backup "$snapshot_dir"

# Always remove snapshot subvolume, even if restic fails
btrfs subvolume delete "$snapshot_dir"