#!/usr/bin/env bash
set -e

nginx -t
nginx -g 'daemon off;' &
nginx_pid=$!

trap 'kill "$nginx_pid"' EXIT
trap 'kill "$nginx_pid"' SIGTERM

function checkIsUpToDate() {
	git fetch
	git rev-list HEAD...origin/master --count | grep -q "^0$" && {
		return 0
	}
	return 1
}

function update() {
	git reset --hard
	git pull
	make
	mv /var/www/html /var/www/html-delme
	mv public/ /var/www/html
	rm -rf /var/www/html-delme &
	git reset --hard
}
function init() {
	test -z "$GIT_URL" && {
		echo "GIT_URL is not set"
		exit 1
	}
	git clone "$GIT_URL" .
}

cd /repo

init
update
(
	while true; do
		sleep 15
		checkIsUpToDate && continue
		update
	done

) &

(
	while true; do
		sleep 1h
		update

	done
) &

wait "$nginx_pid"