Use library.sh from prow-tests image, instead of yet another copy of it

hack/deploy.sh

@@ -14,26 +14,28 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-set -o errexit
+# Load github.com/knative/test-infra/images/prow-tests/scripts/library.sh
+[ -f /workspace/library.sh ] \
+  && source /workspace/library.sh \
+  || eval "$(docker run --entrypoint sh gcr.io/knative-tests/test-infra/prow-tests -c 'cat library.sh')"
+[ -v KNATIVE_TEST_INFRA ] || exit 1
 
-source "$(dirname $(readlink -f ${BASH_SOURCE}))/../test/library.sh"
+set -o errexit
 
 : ${PROJECT_ID:="knative-environments"}
 readonly PROJECT_ID
 readonly K8S_CLUSTER_NAME=${1:?"First argument must be the kubernetes cluster name."}
 readonly K8S_CLUSTER_ZONE=us-central1-a
 readonly K8S_CLUSTER_MACHINE=n1-standard-8
 readonly K8S_CLUSTER_NODES=5
-readonly SERVING_RELEASE=https://storage.googleapis.com/knative-releases/latest/release.yaml
-readonly ISTIO_YAML=https://storage.googleapis.com/knative-releases/latest/istio.yaml
 readonly PROJECT_USER=$(gcloud config get-value core/account)
 readonly CURRENT_PROJECT=$(gcloud config get-value project)
 
 function cleanup() {
   gcloud config set project ${CURRENT_PROJECT}
 }
 
-cd ${SERVING_ROOT_DIR}
+cd ${REPO_ROOT_DIR}
 trap cleanup EXIT
 
 echo "Using project ${PROJECT_ID} and user ${PROJECT_USER}"
@@ -60,16 +62,6 @@ gcloud --project=${PROJECT_ID} container clusters create \
 header "Setting cluster admin"
 acquire_cluster_admin_role ${PROJECT_USER} ${K8S_CLUSTER_NAME} ${K8S_CLUSTER_ZONE}
 
-header "Installing istio"
-kubectl apply -f ${ISTIO_YAML}
-wait_until_pods_running istio-system
-
-kubectl label namespace default istio-injection=enabled
-
-header "Installing Knative Serving"
-kubectl apply -f ${SERVING_RELEASE}
-
-wait_until_pods_running knative-serving
-wait_until_pods_running knative-build
+start_latest_knative_serving
 
 header "Knative Serving deployed successfully to ${K8S_CLUSTER_NAME}"

hack/verify-codegen.sh

@@ -14,12 +14,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-source "$(dirname $(readlink -f ${BASH_SOURCE}))/../test/library.sh"
-
 set -o errexit
 set -o nounset
 set -o pipefail
 
+readonly SERVING_ROOT_DIR="$(git rev-parse --show-toplevel)"
 readonly TMP_DIFFROOT="$(mktemp -d -p ${SERVING_ROOT_DIR})"
 
 cleanup() {
@@ -43,7 +42,7 @@ cp -a "${SERVING_ROOT_DIR}/config"/* "${TMP_DIFFROOT}/config"
 "${SERVING_ROOT_DIR}/hack/update-codegen.sh"
 echo "Diffing ${SERVING_ROOT_DIR} against freshly generated codegen"
 ret=0
-diff -Naupr "${SERVING_ROOT_DIR}/pkg" "${TMP_DIFFROOT}/pkg" || ret=$?
+diff -Naupr "${SERVING_ROOT_DIR}/pkg" "${TMP_DIFFROOT}/pkg" || ret=1
 
 # Restore working tree state
 rm -fr "${TMP_DIFFROOT}/config"