updater for MQTTfx

update_mqttfx.sh

#!/bin/bash

# get current dir
prog_dir="/opt/$(ls /opt/ | grep MQTTfx)"
echo "DIR: $prog_dir"
prog_dir_version=$(grep 'app\.version' /opt/MQTTfx/app/MQTTfx.cfg | sed s/app.version=//)
echo "DIR Version: $prog_dir_version"

# get current url
prog_url=$(curl -s http://mqttfx.jensd.de/index.php/download | sed 's/<a/\n<a/g' | grep '^<a' | grep Version | head -n1 | sed 's/.*http/http/g' | cut -d'"' -f1)
prog_url_extra=$(curl -s $prog_url/ | sed 's/<a/\n<a/g' | grep '^<a' | grep x86_64 | cut -d'"' -f2)
prog_url="$prog_url/$prog_url_extra"
echo "URL: $prog_url"
prog_url_version=$(echo $prog_url | awk -F/ '{print $(NF-1)}')
echo "URL Version: $prog_url_version"

# check that a current version is found
if [ "$prog_dir_version" == "" ]
then
	echo "New Installation! (no old version found)"
	new_install="1"
fi

# check that a new version and url are found
if [ "$prog_url" == "" ] || [ "$prog_url_version" == "" ]
then
	echo "couldn't find url for new version"
	exit
fi

# check current dir version with current url version
if [ "$prog_dir_version" != "$prog_url_version" ]
then
	if [ "$new_install" != "1" ]
	then
		echo "New Version Found!"
	fi

	cd /tmp/
	# download
	wget --quiet --show-progress -O mqttfx.rpm $prog_url
	# upgrade/install rpm
	if [ "$new_install" != "1" ]
	then
		sudo rpm --upgrade mqttfx.rpm
	else
		sudo rpm --install mqttfx.rpm
	fi

	# remove download
	rm mqttfx.rpm
fi