popufare/busunit/scripts/dim

#!/bin/bash
#
# Copyright (c) 2019 Clementine Computing LLC.
# 
# This file is part of PopuFare.
# 
# PopuFare 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.
# 
# PopuFare 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 PopuFare.  If not, see <https://www.gnu.org/licenses/>.
#

infofn="/tmp/kiosk.info"

export DISPLAY=':0'
export XAUTHORITY='/home/pi/.Xauthority'

if [[ -e "/tmp/kiosk.info" ]] ; then

  disp=`grep DISPLAY $infofn | cut -f2 -d'='`
  auth=`grep XAUTHORITY $infofn | cut -f2 -d'='`

  export DISPLAY="$disp"
  export XAUTHORITY="$auth"

fi

/usr/bin/xset dpms force off
exit 0