vbht_uninstaller

#! /usr/bin/env bash

##
## vbht_uninstaller - VirtualBox(R) Host Tools -- uninstaller
## Copyright (C) 2012  Mariano Perez Rodriguez
##
## This program is free software: you can redistribute it and/or modify it
## under the terms of the GNU Affero 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 Affero General Public License for more details.
##
## You should have received a copy of the GNU Affero General Public License
## along with this program. If not, see <http://www.gnu.org/licenses>.
##

set +H          # DISABLE HISTORY EXPANSION FOR CRYING OUT LOUD!!!
set -o nounset  # be merciless about unset variables
set -o errexit  # exit on ANY error

# ==============================================================================
# == Actual work ===============================================================
# ==============================================================================

# fail if the user is not running the script as root
if (( UID )); then echo 'Error: this script MUST be run as root!' >&2; exit 1; fi

# restore backups
if [[ -f '/etc/acpi/pre-vbht-powerbtn.sh' ]]; then mv -fT -- '/etc/acpi/pre-vbht-powerbtn.sh' '/etc/acpi/powerbtn.sh' 2> /dev/null; else rm -f '/etc/acpi/powerbtn.sh' 2> /dev/null; fi
if [[ -f '/etc/acpi/pre-vbht-sleepbtn.sh' ]]; then mv -fT -- '/etc/acpi/pre-vbht-sleepbtn.sh' '/etc/acpi/sleepbtn.sh' 2> /dev/null; else rm -f '/etc/acpi/sleepbtn.sh' 2> /dev/null; fi

# remove every file added by the installer in a non-opt location
rm -f -- '/etc/udev/rules.d/vbht.rules' 2> /dev/null
rm -f -- '/etc/logrotate.d/vbht'        2> /dev/null
rm -f -- '/etc/sudoers.d/vbht'          2> /dev/null

# remove every file in "/opt/vbht", and itself
rm -rf -- '/opt/vbht' 2> /dev/null


# aaand we're done!
exit 0