#!/usr/bin/env bash

set -o errexit

VERSION=1.18.0
DOWNLOAD=https://github.com/coreos/rkt/releases/download/v${VERSION}/rkt-v${VERSION}.tar.gz

function install_rkt() {
	if [[ -e /usr/local/bin/rkt ]] ; then
		if [ "rkt Version: ${VERSION}" == "$(rkt version | head -n1)" ] ; then
			return
		fi
	fi
	
	wget -q -O /tmp/rkt.tar.gz "${DOWNLOAD}"

	tar -C /tmp -xvf /tmp/rkt.tar.gz
	mv /tmp/rkt-v${VERSION}/rkt /usr/local/bin
	mv /tmp/rkt-v${VERSION}/*.aci /usr/local/bin
}

install_rkt