i3-config-and-scripts/acpid actions/power.sh

#!/bin/bash

# This script invokes the system mode in the i3 config file. Useful with acpid if
# Power button is pressed.

# Copyright (C) 2017 Fabrizio Romano Genovese <egonigredo@gmail.com>

# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties 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 <http://www.gnu.org/licenses/>

# Put this file in /etc/acpi/actions/. Do not forget to give 
# sudo chmod +x power.sh 
# to make it executable.

# ALL THE COMMANDS IN THE SCRIPT HAVE TO BE GIVEN VIA sudo SPECIFYING DISPLAY
#  BECAUSE OF QUBESOS WEIRDNESS. 
# IN OTHER SYSTEMS EVERYTHING IS MAYBE EASIER.

# Grep the system variable in the i3 config file, that defines the correspondent mode.
sysname=`sudo -u Nigredo -H sh -c 'DISPLAY=:0 sudo grep "set \\$system" /home/Nigredo/.config/i3/config | tail -c +13'`
 
# Invoke the mode in i3
 sudo -u Nigredo -H sh -c "DISPLAY=:0 i3-msg mode '$sysname'"