Add build tests

Signed-off-by: Pierangelo Di Pilato <pierdipi@redhat.com>

hack/build.sh

@@ -3,3 +3,5 @@
 source "$(dirname $0)/common.sh"
 
 build_transform_jsonata_image || exit 1
+
+build_integration_images || exit 1

hack/common.sh

@@ -10,7 +10,7 @@ readonly REPO_ROOT_DIR
 function build_transform_jsonata_image() {
   local image="${KO_DOCKER_REPO}/transform-jsonata:${TAG}"
 
-  docker buildx build \
+  docker build \
     --platform linux/amd64,linux/arm64 \
     -t "${image}" \
     -f "${REPO_ROOT_DIR}/transform-jsonata/Dockerfile" \
@@ -21,3 +21,7 @@ function build_transform_jsonata_image() {
   TRANSFORM_JSONATA_IMAGE=$(docker inspect --format '{{index .RepoDigests 0}}' "${image}")
   export TRANSFORM_JSONATA_IMAGE
 }
+
+function build_integration_images() {
+  "${REPO_ROOT_DIR}/mvnw" clean package -P knative -DskipTests || return $?
+}

hack/release.sh

@@ -27,7 +27,7 @@ function build_release() {
 
   # KO_DOCKER_REPO and TAG are calculated in release.sh script
 
-  ./mvnw clean package -P knative -DskipTests || return $?
+  build_integration_images || return $?
 
   # use the function so that the exported TRANSFORM_JSONATA_IMAGE is visible after during generate_transformation_configMap
   build_transform_jsonata_image || return $?

test/presubmit-tests.sh

@@ -1,8 +1,13 @@
 #!/usr/bin/env bash
 
-# TODO a placeholder script to CI automation.
-# Can be used to execute integration tests in the future.
+# shellcheck disable=SC1090
+source "$(go run knative.dev/hack/cmd/script presubmit-tests.sh)"
+source "$(go run knative.dev/hack/cmd/script infra-library.sh)"
+source "$(go run knative.dev/hack/cmd/script e2e-tests.sh)"
 
-./hack/build.sh
+function build_tests() {
+  header "Running build tests"
+  ./hack/build.sh || fail_test "build tests failed"
+}
 
-true
+main $@