make: Add target to verify generated files are up to date

Makefile

@@ -4,13 +4,22 @@ export GOBIN=$(CURDIR)/bin
 export PATH:=$(PATH):$(GOBIN)
 
 ## Run all linters
-lint: golangci-lint
+lint: golangci-lint check-go-generated
 
 ## Run golangci-lint
 golangci-lint:
 	go install github.com/golangci/golangci-lint/cmd/[email protected]
 	golangci-lint run --config .golangci.yml
 
+## Run go generate
+generate:
+	go install golang.org/x/tools/cmd/[email protected]
+	go generate ./...
+
+## Check generated files are up to date
+check-go-generated: generate
+	git diff | (! grep .)
+
 ## Run go test
 go-test:
 	CGO_ENABLED=0 go test -v -covermode=atomic ./...