#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
# Copyright (C) 2018-present Team LibreELEC (https://libreelec.tv)

# remove old machine-id file
[[ -f "/storage/.cache/machine-id" ]] && rm /storage/.cache/machine-id

# If the machine id is in a tmpfs mount, unmount it
[[ "$(/usr/bin/mount 2>/dev/null| grep [m]achine-id)" ]] && umount /storage/.cache/systemd-machine-id

# test systemd-machine-id exists and is 32 hex chars or generate a new uuid
MACHINEID="$(cat /storage/.cache/systemd-machine-id 2>/dev/null)"
[ "${#MACHINEID}" != "32" ] && MACHINEID=
[[ "${MACHINEID//[a-f0-9]/}" != "" ]] && MACHINEID=
[ -z "${MACHINEID}" ] && MACHINEID=$(/usr/bin/dbus-uuidgen)

# persist uuid
mkdir -p /storage/.cache
  echo "$MACHINEID" > /storage/.cache/systemd-machine-id