#!/bin/sh
# See LICENSE file for copyright and license details.

set -e

if test ! $# = 2 || test -t 0 || test -t 1; then
	printf 'usage: %s tarball-url ref-tarball < old-checksums > all-checksums\n' "$0" >&2
	exit 1
fi

utildir="$(dirname -- "$0")"
(cd -- "${utildir}" && (make >/dev/null 2>/dev/null || make))

new_checksums="$("${utildir}"/tmpmount /var/empty "${utildir}"/check-mirror "$1" "$2" /var/empty)"

(printf '%s\n' "${new_checksums}"; cat) | "${utildir}"/order-checksums