#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# === This file is part of Calamares - <http://github.com/calamares> ===
#
#   Copyright 2014 - 2015, Philip Müller <philm@manjaro.org>
#   Copyright 2014, Teo Mrnjavac <teo@kde.org>
#   Copyright 2017. Alf Gaida <agaida@siduction.org>
#
#   Calamares is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   Calamares is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with Calamares. If not, see <http://www.gnu.org/licenses/>.

import subprocess
import shutil

import libcalamares


def run():
    """
    Set hardware clock
    """

    root_mount_point = libcalamares.globalstorage.value("rootMountPoint")
    try:
        subprocess.check_call(["hwclock", "--systohc", "--utc"])
    except subprocess.CalledProcessError as e:
        return (
            "Cannot set hardware clock.",
            "hwclock terminated with exit code {}.".format(e.returncode)
            )

    shutil.copy2("/etc/adjtime", "{!s}/etc/".format(root_mount_point))

    return None