CODE_GEN_BIN_NAME := codegen
CODE_GEN_GO_DEPENDENCIES := $(call rwildcard,cmd/codegen/,*.go)
CODE_GEN_BUILDFLAGS :=
ifdef DEBUG
CODE_GEN_BUILDFLAGS := -gcflags "all=-N -l" $(CODE_GEN_BUILDFLAGS)
endif

PEGOMOCK_VERSION := v2.7.0
CLIENTSET_GENERATOR_VERSION := kubernetes-1.15.12
GEN_APIDOCS_VERSION := v0.0.0-20190912061656-a61bc210ee54
OPENAPI_GEN_VERSION := 36ebc4887cdc

build-codegen: build/$(CODE_GEN_BIN_NAME) ## Build the code generator

build/$(CODE_GEN_BIN_NAME): $(CODE_GEN_GO_DEPENDENCIES)
	CGO_ENABLED=$(CGO_ENABLED) $(GO) build $(CODE_GEN_BUILDFLAGS) -o build/$(CODE_GEN_BIN_NAME) cmd/codegen/codegen.go

test-codegen: ## Test the code geneator
	CGO_ENABLED=$(CGO_ENABLED) $(GO) test -v -short ./cmd/codegen/...

# Generate go code using generate directives in files and kubernetes code generation
# Anything generated by this target should be checked in
generate: build-codegen install-generate-deps generate-mocks generate-client ## Generate the Go code (crds, mocks, openapi, client)
	@$(MAKE) fmt
	@$(MAKE) importfmt
	@echo "Generation complete"

install-generate-deps:
	$(GO) get github.com/petergtz/pegomock/...@$(PEGOMOCK_VERSION)

generate-mocks: install-generate-deps go-generate fmt importfmt ## Generate the mocks

go-generate:
	@echo "Generating Mocks using pegomock"
	$(GO) generate ./...

generate-client: codegen-config fmt importfmt ## Generate the client

codegen-config: build-codegen ## Generate the deepcopy for the config, jenkinsfile, and tekton/syntax packages
	# sleep for one second to prevent collision with previous codegen's replacement of go.mod
	sleep 1
	./build/$(CODE_GEN_BIN_NAME) --generator-version $(CLIENTSET_GENERATOR_VERSION) clientset --generator deepcopy --output-package=pkg --input-package=v2/pkg --group-with-version=config: --group-with-version=jenkinsfile: --group-with-version=tekton:syntax --semver=v2

# Generated docs are not checked in
generate-docs: build-codegen ## Generate the docs
	@echo "Generating HTML docs for Kubernetes Clients"
	./build/$(CODE_GEN_BIN_NAME) --generator-version $(GEN_APIDOCS_VERSION) docs

install-refdocs:
	$(GO) get github.com/jenkins-x/gen-crd-api-reference-docs

stash:
	# Making sure repo has no outstanding changes
	git stash

# Verifies that generated code is in sync with implementation
verify-generation-complete: stash generate ## Verify the generated code is up to date
	$(eval CHANGED = $(shell git ls-files --modified --others --exclude-standard))
	@if [ "$(CHANGED)" == "" ]; \
      	then \
      	    echo "All generated files up to date"; \
      	else \
      		echo "Code generation is out of date"; \
      		echo "$(CHANGED)"; \
			git diff; \
      		exit 1; \
      	fi