GeneralKlipperScreen/scripts/xsdl_wrapper.sh

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# A wrapper for the popular script for KlipperScreen on Android over adb over USB.
# https://klipper.discourse.group/t/how-to-klipperscreen-on-android-smart-phones/1196
#
# Keeps the process alive while the server is active
# to mimic default X's behaviour and keep the service happy
if [ -f $PWD/launch_klipperscreen.sh ]; then
exec $PWD/launch_klipperscreen.sh
elif [ ! -f $PWD/launch_klipperscreen.sh ]; then
echo "launch_klipperscreen.sh does not exist"
exit
fi
ret=1
timeout=0
echo -n "Waiting for X-server to be ready "
while [ $ret -gt 0 ] && [ $timeout -lt 60 ]
do
xset -display :100 -q > /dev/null 2>&1
ret=$?
timeout=$( expr $timeout + 1 )
echo -n "."
sleep 1
done
echo ""
if [ $timeout -lt 60 ]
then
echo -n "X server found. Monitoring connection"
ret=0
while [ $ret -eq 0 ]
do
xset -display :100 -q > /dev/null 2>&1
ret=$?
sleep 60
done
echo -n "X Server connection lost"
exit 0
else
echo -n "X server not found"
exit 1
fi