osuboot/osuboot.sh

#!/usr/sbin/env bash
##########################
##       osu!boot       ##
## Made by JeremyStarTM ##
##  Licensed under the  ##
##      GNU GPL v3      ##
##########################
export "OSUBOOT_NETCONNECT=false"
function prepare(){
	echo "Preparing osu!boot"
	if [ -d "/tmp/osuboot/" ]; then
		rm -rf "/tmp/osuboot/" &> /tmp/osuboot_rm.log
	fi
	mkdir "/tmp/osuboot" -p
	if [ -f "/tmp/osuboot_rm.log" ]; then
		mv "/tmp/osuboot_rm.log" "/tmp/osuboot/rm.log"
	fi
	sleep 1s
}
function checkInternet() {
	ping 1.1.1.1 -c 1 &> /dev/null
	if [ ! "$?" == "0" ]; then
		echo "Checking internet connectivity: No internet (IPv4)"
		return
	fi
	ping one.one.one.one -c 1 &> /dev/null
	if [ ! "$?" == "0" ]; then
		echo "Checking internet connectivity: No internet (DNS)"
		return
	fi
	echo "Checking internet connectivity"
	export "OSUBOOT_NETCONNECT=true"
}
function downloadGame(){
	if [ "$OSUBOOT_NETCONNECT" == "false" ]; then
		echo "Downloading osu!lazer: Skipping, no internet available"
		return
	fi
	echo "Downloading osu!lazer"
	if [ ! -f "$HOME/.cache/osu.AppImage" ] || [[ $(find "$HOME/.cache/osu.AppImage" -mtime +1 -print) ]]; then
		wget "https://github.com/ppy/osu/releases/latest/download/osu.AppImage" -O "$HOME/.cache/osu.AppImage" &> /tmp/osuboot/download.log
	else
		echo "Downloading osu!lazer: Skipping, download is not yet a day old"
	fi
	chmod +x "$HOME/.cache/osu.AppImage"
}
function runGame(){
	if [ ! -f "$HOME/.cache/osu.AppImage" ]; then
		echo "Launching osu!lazer: osu!lazer is missing and can't be launched."
		return
	fi
	echo "Launching osu!lazer"
	"$HOME"/.cache/osu.AppImage &> /tmp/osuboot/osu.proclog
}
function notice(){
	if [ "$1" == "startup" ]; then
		echo "                 _ _                 _   "
		echo "  ___  ___ _   _| | |__   ___   ___ | |_ "
		echo " / _ \/ __| | | | | '_ \ / _ \ / _ \| __|"
		echo "| (_) \__ \ |_| |_| |_) | (_) | (_) | |_ "
		echo " \___/|___/\__,_(_)_.__/ \___/ \___/ \__|"
		echo ""
	elif [ "$1" == "exit" ]; then
		echo ""
		echo "osu!boot is being developed by the StarOpenSource Project, is designed"
		echo "to be used with osu!launcher and is maintained by JeremyStarTM."
	else
		echo "Invalid notice."
		return
	fi
}
function run() {
	notice "startup"
	prepare
	checkInternet
	downloadGame
	runGame
	notice "exit"
}
run