#!/bin/bash -x

#
# Commit tag and Version number should be provided as input in the command line
#
#

if [ $# -ne 2 ];
then
	echo 'create-rpm <version> <based_on_tag>'
	exit 1
fi

command -v ronn &>/dev/null || { echo >&2 "ronn needs to be installed."; exit 1; }
command -v rpmbuild &>/dev/null || { echo >&2 "rpmbuild needs to be installed."; exit 1; }

set -e 

base_folder=`readlink -m $(dirname $0)`

pushd ${base_folder} >/dev/null

rpm_build_area=${base_folder}/rpm_build_area
rm -rf ${rpm_build_area:=/non-existent-dir}
mkdir -p ${rpm_build_area}/{SOURCES,SPECS,BUILD,RPMS,SRPMS,BUILDROOT}

echo RPM build area is in ${rpm_build_area}

VERSION=$1
BASED_ON_TAG=$2

REAL_PACKAGE_NAME=q
RPM_PACKAGE_NAME=q-text-as-data

FULL_NAME_FOLDER=${RPM_PACKAGE_NAME}-${VERSION}

if [ ! -e ${RPM_PACKAGE_NAME}.spec.template ];
then
	echo "spec template does not exist. can't continue"
	exit 1
fi

curl -f -o ${rpm_build_area}/SOURCES/q.tar.gz -L -R "https://github.com/harelba/q/tarball/$BASED_ON_TAG"
mkdir -p ${rpm_build_area}/SOURCES
pushd ${rpm_build_area}/SOURCES >/dev/null
tar xvzf ./q.tar.gz --strip-components=1
rm -vf ./q.tar.gz
curl -f -o ./bin/q -L -R "https://github.com/harelba/packages-for-q/raw/master/single-binary/x86_64/${VERSION}/q"
chmod +x ./bin/q
popd >/dev/null
find ${rpm_build_area}/ -ls

cat ${RPM_PACKAGE_NAME}.spec.template | sed "s/VERSION_PLACEHOLDER/$VERSION/g" > ${rpm_build_area}/SPECS/${RPM_PACKAGE_NAME}.spec

rpmbuild -v --define "_topdir ${rpm_build_area}" -ba ${rpm_build_area}/SPECS/${RPM_PACKAGE_NAME}.spec

popd >/dev/null