remaster/src/func/check_update

#!/bin/bash
#remaster lib
[ -d "<LIBDIR>" ] || { echo "LIBDIR not exist"; exit 1; }

#check_update
function check_update() {
    if curl https://raw.githubusercontent.com/6543/remaster/master/changes/remaster.md | diff - <(zcat <ROOTDIR>/usr/share/doc/remaster/changelog.gz ); then
			echo 'INFO: Programm Aktuell'
	else
			echo 'WARNUNG: Ausgeführte Version entspricht nicht dem offiziellen Release'
    fi
}

#this func is standalone executable
[ -n "$1" ] && {
    check_update
}