Makefile

# Image URL to use all building/pushing image targets
IMG ?= controller:latest
# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
ENVTEST_K8S_VERSION = 1.30.0

.PHONY: all

all: build

build:
	go build -o bin/fedhcp ./main.go

clean:
	rm -rf bin

run: all
	sudo ./bin/fedhcp

.PHONY: docker-build
docker-build: ## Build docker image with the manager.
	docker build -t ${IMG}

.PHONY: docker-push
docker-push: ## Push docker image with the manager.
	docker push ${IMG}

.PHONY: fmt
fmt: goimports ## Run goimports against code.
	$(GOIMPORTS) -w .

.PHONY: vet
vet: ## Run go vet against code.
	go vet ./...

.PHONY: help
help: ## Display this help.
	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)

.PHONY: addlicense
addlicense: ## Add license headers to all go files.
	find . -name '*.go' -exec go run github.com/google/addlicense -f hack/license-header.txt {} +

.PHONY: checklicense
checklicense: ## Check that every file has a license header present.
	find . -name '*.go' -exec go run github.com/google/addlicense  -check -c 'OnMetal authors' {} +

lint: golangci-lint ## Run golangci-lint against code.
	$(GOLANGCI_LINT) run ./...

.PHONY: test
test: controller-gen fmt vet envtest ## Run tests.
	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" go test ./... -coverprofile cover.out

##@ Dependencies

## Location to install dependencies to
LOCALBIN ?= $(shell pwd)/bin
$(LOCALBIN):
	mkdir -p $(LOCALBIN)

## Tool Binaries
KUBECTL ?= kubectl
KUSTOMIZE ?= $(LOCALBIN)/kustomize-$(KUSTOMIZE_VERSION)
CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen-$(CONTROLLER_TOOLS_VERSION)
ENVTEST ?= $(LOCALBIN)/setup-envtest-$(ENVTEST_VERSION)
GOLANGCI_LINT = $(LOCALBIN)/golangci-lint-$(GOLANGCI_LINT_VERSION)
GOIMPORTS ?= $(LOCALBIN)/goimports-$(GOIMPORTS_VERSION)

## Tool Versions
KUSTOMIZE_VERSION ?= v5.4.1
CONTROLLER_TOOLS_VERSION ?= v0.15.0
ENVTEST_VERSION ?= latest
GOLANGCI_LINT_VERSION ?= v1.61.0
GOIMPORTS_VERSION ?= v0.25.0

.PHONY: kustomize
kustomize: $(KUSTOMIZE) ## Download kustomize locally if necessary.
$(KUSTOMIZE): $(LOCALBIN)
  $(call go-install-tool,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/v5,$(KUSTOMIZE_VERSION))

.PHONY: controller-gen
controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary.
$(CONTROLLER_GEN): $(LOCALBIN)
	$(call go-install-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen,$(CONTROLLER_TOOLS_VERSION))

.PHONY: envtest
envtest: $(ENVTEST) ## Download setup-envtest locally if necessary.
$(ENVTEST): $(LOCALBIN)
	$(call go-install-tool,$(ENVTEST),sigs.k8s.io/controller-runtime/tools/setup-envtest,$(ENVTEST_VERSION))

.PHONY: golangci-lint
golangci-lint: $(GOLANGCI_LINT) ## Download golangci-lint locally if necessary.
$(GOLANGCI_LINT): $(LOCALBIN)
	$(call go-install-tool,$(GOLANGCI_LINT),github.com/golangci/golangci-lint/cmd/golangci-lint,${GOLANGCI_LINT_VERSION})

.PHONY: goimports
goimports: $(GOIMPORTS) ## Download goimports locally if necessary.
$(GOIMPORTS): $(LOCALBIN)
	$(call go-install-tool,$(GOIMPORTS),golang.org/x/tools/cmd/goimports,$(GOIMPORTS_VERSION))

# go-install-tool will 'go install' any package with custom target and name of binary, if it doesn't exist
# $1 - target path with name of binary (ideally with version)
# $2 - package url which can be installed
# $3 - specific version of package
define go-install-tool
@[ -f $(1) ] || { \
set -e; \
package=$(2)@$(3) ;\
echo "Downloading $${package}" ;\
GOBIN=$(LOCALBIN) go install $${package} ;\
mv "$$(echo "$(1)" | sed "s/-$(3)$$//")" $(1) ;\
}
endef