#!/bin/bash

# This script will build a RPM from the files in the current directory, given that there is a rpm/file.spec
# Its primary purpose is to be used by Jenkins

set -e
set -x

specfile=`find rpm -name \*.spec |head -1`
test -z "$specfile" && exit -1

specfile=`basename $specfile`

name=`grep -P '^Name:\s+' rpm/$specfile |awk '{print $2}'`
commitdate=`git log -1 --format="%ct"`
version=`grep -P '^Version:\s+' rpm/$specfile |awk '{print $2}'`.$commitdate
#release=`grep -P '^Release:\s+' rpm/$specfile |awk '{print $2}'`

rm -rf rpmbuild
mkdir -p rpmbuild/{BUILD,RPMS,SOURCES/$name-$version,SPECS,SRPMS,tmp}
cp -a rpm/$specfile rpmbuild/SPECS
sed -i "s/^[\t ]*Version:.*\$/Version: ${version}/" rpmbuild/SPECS/$specfile
#tar --exclude-vcs --exclude='rpmbuild' --exclude='rpm' -cp * | (cd rpmbuild/SOURCES/$name-$version ; tar xp)

pushd rpmbuild/SOURCES
#tar cf $name-$version.tar $name-$version  # Best not to use cpu on our small ec2 instances
#sed -i "s/^[\t ]*Source0:.*/Source0: $name-$version.tar/g" rpmbuild/SPECS/*.spec
#sed -i "s/^[\t ]*%setup[\t ]\+-n[\t ]\+.*/%setup -n $name-$version/g" rpmbuild/SPECS/*.spec
popd

rpmbuild --define "_topdir %(pwd)/rpmbuild" -ba rpmbuild/SPECS/$specfile