+# What we use to tag the Docker image. For release candidate
+# packages, the OS package has a "~rc" suffix, but Python requires
+# just an "rc" suffix. Arvados-cwl-runner will be expecting the
+# Python-compatible version string when it tries to pull the Docker
+# image, but --build-arg is expecting the OS package version.
+cwl_runner_version_tag=$(echo -n $cwl_runner_version | sed s/~rc/rc/g)
+
+if [[ "${cwl_runner_version}" != "${ARVADOS_BUILDING_VERSION}" ]]; then
+ cwl_runner_version="${cwl_runner_version}-1"
+else
+ cwl_runner_version="${ARVADOS_BUILDING_VERSION}-${ARVADOS_BUILDING_ITERATION}"
+fi