Backup Script

.gitignore

@@ -1,2 +1,3 @@
 banner_launcher
 debug_config
+backup

backup.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -e
+
+backup_from="${backup_from:-"${XDG_CONFIG_HOME:-~/.config}/banner_launcher"}"
+backup_from_target="$(basename "$backup_from")"
+backup_from_real_dir="$(dirname "$(realpath --canonicalize-missing "$backup_from")")"
+
+backup_to="${backup_to:-"backup/$(date -u +"%Y_%m_%d_%H_%M_%S").tar.gz"}"
+backup_to_dir="$(dirname "$backup_to")"
+backup_to_real_path="$(realpath --canonicalize-missing "$backup_to")"
+
+echo "Backing up $backup_from to $backup_to"
+
+mkdir -p "$backup_to_dir"
+
+pushd "$backup_from_real_dir" > /dev/null
+tar czf "${backup_to_real_path}" --absolute-names "${backup_from_target}"
+popd > /dev/null