source: vbox/trunk/src/VBox/Installer/darwin/VirtualBox/preflight

#!/bin/sh

#
# Copyright (C) 2007-2023 Oracle and/or its affiliates.
#
# This file is part of VirtualBox base platform packages, as
# available from https://www.virtualbox.org.
#
# This program 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, in version 3 of the
# License.
#
# 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, see <https://www.gnu.org/licenses>.
#
# SPDX-License-Identifier: GPL-3.0-only
#

set -e

# Check environment.
if [ "x${INSTALLER_TEMP}" = "x" ]; then
    echo "Required environment variable INSTALLER_TEMP is missing. Aborting installation."
    exit 1;
fi

# Backup previously installed Extension Packs before
# installation process will completely remove previously installed
# VirtualBox distribution.
EXTPACKS_ROOT_PATH="/Applications/VirtualBox.app/Contents/MacOS/ExtensionPacks"
if [ -d "${EXTPACKS_ROOT_PATH}" ]; then
    cp -r "${EXTPACKS_ROOT_PATH}" "${INSTALLER_TEMP}"
fi

exit 0;