#!/bin/sh

set -e

MAIN=$(xrandr | grep eDP | cut -f1 -d" ")
if [ "${MAIN}" = "" ]; then
	echo "Could not find main display."
	exit 1
fi

OTHER=$(xrandr | grep "\<connected\>" | grep -v eDP | cut -f1 -d" ")
if [ "${OTHER}" = "" ]; then
	echo "Could not find external display."
	exit 1
fi

echo "Set ${MAIN} as mirror of ${OTHER}"

xrandr --output ${OTHER} --auto --output ${MAIN} --same-as ${OTHER} --primary