#!/bin/bash

set -e

tmp=$(mktemp -d)

trap cleanup EXIT
cleanup() {
    set +e
    [ -z "$tmp" -o ! -d "$tmp" ] || rm -rf "$tmp"
}

unset CDPATH
pwd=$(pwd)
date=$(date +%Y%m%d)
package=x264
branch=stable
commit=HEAD

pushd "$tmp"
git clone git://git.videolan.org/${package}.git -b ${branch}
cd ${package}
tag=$(git rev-list HEAD -n 1 | cut -c 1-7)
git checkout ${commit}
git checkout -b rpmfusion
./version.sh > version.h
API=`grep '#define X264_BUILD' < x264.h | sed -e 's/.* \([1-9][0-9]*\).*/\1/'`
git add version.h
git commit -m "generated version.h" version.h
git archive --prefix="${package}-0.$API-${date}-${tag}/" --format=tar rpmfusion | bzip2 > "$pwd"/${package}-0.$API-${date}-${tag}.tar.bz2
popd >/dev/null