#!/bin/bash
# shellcheck disable=SC1090
#
# Copyright (C) 2017 Centro de Computacao Cientifica e Software Livre
# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
#
# This file is part of create-iso
#
# create-iso 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.

mountTmpfs() {
    local tmpfs="${1}"

    if mountpoint --quiet "${tmpfs}"; then
        return 1
    fi
    mkdir --parents "${tmpfs}"
    if [ ! -d "${tmpfs}" ]; then
        echo "overlay path: '${tmpfs}' has not been found."
        exit 1
    fi
    mount --types tmpfs tmpfs --options suid,dev,size=6291456k "${tmpfs}"
}

umountTmpfs() {
    local tmpfs="${1}"
    if mountpoint --quiet "${tmpfs}"; then
       umount "${tmpfs}"
    fi
    rm --recursive --force "${tmpfs:?}"
}