git fetch
curl https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar --output BuildTools.jar

if [ -z "$(git status --porcelain)" ]; then
	if [ -z "$(git log HEAD..origin/master --oneline)" ]; then
		if [ -z "$1" ]; then
			echo "Usage: build.sh <version>"
		else
			if [ -d "$1" ]; then
				rm -fr "$1"
			fi
			
			mkdir "$1"
			cd "$1"
			Java -jar ../BuildTools.jar --rev "$1"
		fi
	else
		echo "It looks like there are incomming updates to this repository. Pulling those changes now."
		git pull
		echo "This repositry has been updated. That means that this script might also have been updated. This script will now exit to ensure that the newest version is used."
		echo "IMPORTANT: Please re-run this script."
	fi
else
	echo "It looks like you have made changes to this repository."
	echo "Please remove those changes and re-run this script."
fi