ci: Check if working tree is dirty

- run unit tests in a dedicated CI step
- check if working tree is dirty and fail CI build

.github/workflows/e2e.yaml

@@ -29,7 +29,13 @@ jobs:
         uses: ./.github/actions/kustomize
       - name: Setup Kubebuilder
         uses: ./.github/actions/kubebuilder
-      - name: Run tests and build image
+      - name: Run tests
+        run: make test
+        env:
+          KUBEBUILDER_ASSETS: ${{ github.workspace }}/kubebuilder/bin
+      - name: Check if working tree is dirty
+        run: git diff --quiet || echo 'run make test and commit changes' && exit 1
+      - name: Build container image
         run: make docker-build IMG=test/source-controller:latest
         env:
           KUBEBUILDER_ASSETS: ${{ github.workspace }}/kubebuilder/bin

Makefile

@@ -62,7 +62,7 @@ generate: controller-gen
 	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
 
 # Build the docker image
-docker-build: test
+docker-build:
 	docker build . -t ${IMG}
 
 # Push the docker image