UPSTREAM: <carry>: fix e2e tests on release branches

Author: damdo

openshift/e2e-openstack.sh

@@ -7,6 +7,15 @@ echo "Running e2e-openstack.sh"
 unset GOFLAGS
 tmp="$(mktemp -d)"
 
-git clone --depth=1 "https://github.com/openshift/cluster-api-provider-openstack.git" "$tmp"
+if [ "${PULL_BASE_REF}" == "master" ]; then
+  # the default branch for cluster-api-provider-openstack is main.
+  CAPO_BASE_REF="main"
+else
+  CAPO_BASE_REF=$PULL_BASE_REF
+fi
 
+echo "cloning github.com/openshift/cluster-api-provider-openstack at branch '$CAPO_BASE_REF'"
+git clone --single-branch --branch="$CAPO_BASE_REF" --depth=1 "https://github.com/openshift/cluster-api-provider-openstack.git" "$tmp"
+
+echo "running cluster-api-provider-openstack's: make -C 'openshift' e2e"
 exec make -C "$tmp/openshift" e2e

openshift/e2e-tests.sh

@@ -7,6 +7,15 @@ echo "Running e2e-tests.sh"
 unset GOFLAGS
 tmp="$(mktemp -d)"
 
-git clone --depth=1 "https://github.com/openshift/cluster-capi-operator.git" "$tmp"
+if [ "${PULL_BASE_REF}" == "master" ]; then
+  # the default branch for cluster-capi-operator is main.
+  CCAPIO_BASE_REF="main"
+else
+  CCAPIO_BASE_REF=$PULL_BASE_REF
+fi
 
+echo "cloning github.com/openshift/cluster-capi-operator at branch '$CCAPIO_BASE_REF'"
+git clone --single-branch --branch="$CCAPIO_BASE_REF" --depth=1 "https://github.com/openshift/cluster-capi-operator.git" "$tmp"
+
+echo "running cluster-capi-operator's: make e2e"
 exec make -C "$tmp" e2e