#!/bin/bash

strip_url() {
	echo $1 | sed 's|^.*://.*/||g'
}

if [ ! -f PKGBUILD ]; then
	echo "This must be run in the directory of a built package."
	exit 1
fi

source PKGBUILD

if [ ! -f $pkgname-$pkgver-$pkgrel.pkg.tar.gz ]; then
	echo "You must have a built package to check."
	exit 1
fi

pkgurl=`yes | pacman -Sp $pkgname | rev | cut -d ' ' -f 1 | rev`

oldpkg=`strip_url $pkgurl`

if [ ! -f $oldpkg ]; then
	wget $pkgurl
fi

tar tzf $oldpkg > filelist-old
tar tzf $pkgname-$pkgver-$pkgrel.pkg.tar.gz > filelist

sort -o filelist filelist
sort -o filelist-old filelist

diff filelist-old filelist