verdown_to_112_from_113.sh

#!/bin/bash

set -eu

readonly MINECRAFT_DIR="/opt/minecraft_server"
readonly MINECRAFT_SERVICE="/etc/systemd/system/minecraft-server.service"

systemctl disable --now minecraft-server

rm -rf ${MINECRAFT_DIR}/[^backup]*

readonly backup_dir=$(ls ${MINECRAFT_DIR}/backup|grep 1.12.2|sort -r|head -n 1)

cp -r ${MINECRAFT_DIR}/backup/${backup_dir}/* ${MINECRAFT_DIR}
mv -f ${MINECRAFT_DIR}/minecraft-server.service ${MINECRAFT_SERVICE}

chown root:root -R ${MINECRAFT_DIR}

systemctl daemon-reload
systemctl enable --now minecraft-server

echo "Version down finished"