verify staleness of vendored cluster-api-actuator-pkg

Makefile

@@ -74,7 +74,11 @@ push:
 	docker push "$(IMAGE):$(MUTABLE_TAG)"
 
 .PHONY: check
-check: fmt vet lint test ## Check your code
+check: fmt vet lint test check-pkg ## Check your code
+
+.PHONY: check-pkg
+check-pkg:
+	./hack/verify-actuator-pkg.sh
 
 .PHONY: unit
 unit: # Run unit test

hack/verify-actuator-pkg.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+
+if ! command -v dep 1>/dev/null 2>&1; then
+	curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+fi
+
+if dep check | grep -q cluster-api-actuator-pkg; then
+	exit 1
+fi
+dep ensure -update github.com/openshift/cluster-api-actuator-pkg
+git diff --exit-code