addjosm.sh

#!/bin/bash
# Inataller script for the stable version of JOSM and all its dependencies aimed on easyness and unambiguity
use_flatpak() {
	echo -e "\033[0;33mInstalling JOSM via Flatpak ...\033[0;m"
	flatpak install app/org.openstreetmap.josm/x86_64/stable -y
}

use_apt() {
	echo -e "\033[0;33mInstalling JOSM via APT...\033[0;m"
	if [ -z $(which java) ];
	then
		echo -e "\033[0;31mJava not installed!\033[0;m"
		echo -e "\033[0;33mInstalling recommended version JRE (Java Runtime Environment) 8.0 ...\033[0;m"
		apt install openjdk-8-jre -y
	fi
	
	echo -e "\033[0;33mAdding security key of official JOSM repository to your system ...\033[0;m"
	if ! [ -z $(which wget) ];
	then
		wget -q -O "-" https://josm.openstreetmap.de/josm-apt.key | apt-key add -
	elif ! [ -z $(which curl) ];
	then
		curl https://josm.openstreetmap.de/josm-apt.key | apt-key add
	fi
	
	echo -e "\033[0;33mAdding official JOSM repository to your system ...\033[0;m"
	echo "deb https://josm.openstreetmap.de/apt alldist universe" > /etc/apt/sources.list.d/josm.list
	
	echo -e "\033[0;33mUpdating software list ...\033[0;m"
	apt update

	echo -e "\033[0;33mInstalling JOSM on your system ...\033[0;m"

	# install josm-tested
	apt install josm -y
}

if ! [ -z $(which flatpak) ];
then
	use_flatpak # flatpak is installed, use it
else
	use_apt
fi;