✨ Remove deprecated go get from Makefile

Makefile

@@ -1,4 +1,3 @@
-
 # Git
 GIT_VERSION ?= $(shell git describe --tags --always)
 GIT_BRANCH ?= $(shell git rev-parse --abbrev-ref HEAD)
@@ -17,6 +16,9 @@ KOORD_SCHEDULER_IMG ?= "${REG}/${REG_NS}/koord-scheduler:${GIT_BRANCH}-${GIT_COM
 # ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
 ENVTEST_K8S_VERSION = 1.23
 
+# Set license header files.
+LICENSE_HEADER_GO ?= hack/boilerplate.go.txt
+
 # Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
 ifeq (,$(shell go env GOBIN))
 GOBIN=$(shell go env GOPATH)/bin
@@ -60,7 +62,7 @@ manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and Cust
 .PHONY: generate
 generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
 	@hack/generate_client.sh
-	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./apis/..."
+	$(CONTROLLER_GEN) object:headerFile="$(LICENSE_HEADER_GO)" paths="./apis/..."
 
 .PHONY: fmt
 fmt: ## Run go fmt against code.
@@ -71,8 +73,8 @@ vet: ## Run go vet against code.
 	go vet ./...
 
 .PHONY: lint
-lint:
-	golangci-lint run
+lint: golangci-lint ## Lint Go code.
+	$(GOLANGCI_LINT) run -v --timeout=5m
 
 .PHONY: test
 test: manifests generate fmt vet envtest ## Run tests.
@@ -157,31 +159,41 @@ deploy: manifests kustomize ## Deploy controller to the K8s cluster specified in
 undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
 	$(KUSTOMIZE) build config/default | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
 
-CONTROLLER_GEN = $(shell pwd)/bin/controller-gen
-.PHONY: controller-gen
-controller-gen: ## Download controller-gen locally if necessary.
-	$(call go-get-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/[email protected])
+##@ Build Dependencies
+
+## Location to install dependencies to
+LOCALBIN ?= $(shell pwd)/bin
+$(LOCALBIN):
+	mkdir -p $(LOCALBIN)
 
-KUSTOMIZE = $(shell pwd)/bin/kustomize
+## Tool Binaries
+KUSTOMIZE ?= $(LOCALBIN)/kustomize
+CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
+ENVTEST ?= $(LOCALBIN)/setup-envtest
+GOLANGCI_LINT ?= $(LOCALBIN)/golangci-lint
+
+## Tool Versions
+KUSTOMIZE_VERSION ?= v3.8.7
+CONTROLLER_TOOLS_VERSION ?= v0.8.0
+GOLANGCILINT_VERSION ?= v1.45.2
+
+KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"
 .PHONY: kustomize
-kustomize: ## Download kustomize locally if necessary.
-	$(call go-get-tool,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/[email protected])
+kustomize: $(KUSTOMIZE) ## Download kustomize locally if necessary.
+$(KUSTOMIZE): $(LOCALBIN)
+	curl -s $(KUSTOMIZE_INSTALL_SCRIPT) | bash -s -- $(subst v,,$(KUSTOMIZE_VERSION)) $(LOCALBIN)
+
+.PHONY: controller-gen
+controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary.
+$(CONTROLLER_GEN): $(LOCALBIN)
+	GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_TOOLS_VERSION)
 
-ENVTEST = $(shell pwd)/bin/setup-envtest
 .PHONY: envtest
-envtest: ## Download envtest-setup locally if necessary.
-	$(call go-get-tool,$(ENVTEST),sigs.k8s.io/controller-runtime/tools/setup-envtest@latest)
-
-# go-get-tool will 'go get' any package $2 and install it to $1.
-PROJECT_DIR := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))
-define go-get-tool
-@[ -f $(1) ] || { \
-set -e ;\
-TMP_DIR=$$(mktemp -d) ;\
-cd $$TMP_DIR ;\
-go mod init tmp ;\
-echo "Downloading $(2)" ;\
-GOBIN=$(PROJECT_DIR)/bin go get $(2) ;\
-rm -rf $$TMP_DIR ;\
-}
-endef
+envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
+$(ENVTEST): $(LOCALBIN)
+	GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest
+
+.PHONY: golangci-lint
+golangci-lint: $(GOLANGCI_LINT) ## Download golangci-lint locally if necessary.
+$(GOLANGCI_LINT): $(LOCALBIN)
+	GOBIN=$(LOCALBIN) go install github.com/golangci/golangci-lint/cmd/golangci-lint@$(GOLANGCILINT_VERSION)