Expose test build option for RPM make targets

Building an RPM with test binaries is off by default, but
users should be able to turn the option back on if they want.

Signed-off-by: Steve Kuznetsov <skuznets@redhat.com>

Makefile

@@ -237,25 +237,34 @@ install-travis:
 
 # Build RPMs only for the Linux AMD64 target
 #
+# Args:
+#   BUILD_TESTS: whether or not to build a test RPM, off by default
+#
 # Example:
 #   make build-rpms
 build-rpms:
-	OS_ONLY_BUILD_PLATFORMS='linux/amd64' hack/build-rpm-release.sh
+	BUILD_TESTS=$(BUILD_TESTS) OS_ONLY_BUILD_PLATFORMS='linux/amd64' hack/build-rpm-release.sh
 .PHONY: build-rpms
 
 # Build RPMs for all architectures
 #
+# Args:
+#   BUILD_TESTS: whether or not to build a test RPM, off by default
+#
 # Example:
 #   make build-rpms-redistributable
 build-rpms-redistributable:
-	hack/build-rpm-release.sh
+	BUILD_TESTS=$(BUILD_TESTS) hack/build-rpm-release.sh
 .PHONY: build-rpms-redistributable
 
 # Build a release of OpenShift using tito for linux/amd64 and the images that depend on it.
 #
+# Args:
+#   BUILD_TESTS: whether or not to build a test RPM, off by default
+#
 # Example:
-#   make release
-release-rpms: clean build-rpms
+#   make release-rpms BUILD_TESTS=1
+release-rpms: clean build-rpms BUILD_TESTS=$(BUILD_TESTS)
 	hack/build-images.sh
 	hack/extract-release.sh
 .PHONY: release

hack/build-rpm-release.sh

@@ -3,7 +3,8 @@
 # This script generates release zips and RPMs into _output/releases.
 # tito and other build dependencies are required on the host. We will
 # be running `hack/build-cross.sh` under the covers, so we transitively
-# consume all of the relevant envars.
+# consume all of the relevant envars. We also consume:
+#  - BUILD_TESTS: whether or not to build a test RPM, off by default
 source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
 os::build::setup_env
 os::util::environment::setup_tmpdir_vars "build-rpm-release"
@@ -20,7 +21,7 @@ os::log::info 'Building Origin release RPMs with tito...'
 tito_tmp_dir="${BASETMPDIR}/tito"
 mkdir -p "${tito_tmp_dir}"
 tito build --output="${tito_tmp_dir}" --rpm --test --no-cleanup \
-           --rpmbuild-options="--define 'make_redistributable ${make_redistributable}'"
+           --rpmbuild-options="--define 'make_redistributable ${make_redistributable}' --define 'build_tests ${BUILD_TESTS:-0}'"
 
 os::log::info 'Unpacking tito artifacts for reuse...'
 output_directories=( $( find "${tito_tmp_dir}" -type d -name 'rpmbuild-origin*' ) )