Makefile

.DEFAULT_GOAL:=help

#
# Go.
#
GOOS?=$(shell go env GOOS)
GOARCH?=$(shell go env GOARCH)
LDFLAGS?=$(shell hack/version.sh)

#
# Directories.
#
# Full directory of where the Makefile resides
ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
#EXP_DIR := exp

TEST_DIR := test
TOOLS_DIR := hack/tools
#BIN_DIR := $(abspath $(TOOLS_DIR)/$(BIN_DIR))
E2E_FRAMEWORK_DIR := $(TEST_DIR)/framework
GO_INSTALL := ./hack/go_install.sh

# output
OUTPUT_DIR := $(abspath $(ROOT_DIR)/_output)
OUTPUT_BIN_DIR := $(OUTPUT_DIR)/bin
OUTPUT_TOOLS_DIR := $(OUTPUT_DIR)/tools
#ARTIFACTS ?= ${OUTPUT_DIR}/_artifacts

dirs := $(OUTPUT_DIR) $(OUTPUT_BIN_DIR) $(OUTPUT_TOOLS_DIR)

$(foreach dir, $(dirs), \
  $(if $(shell [ -d $(dir) ] && echo 1 || echo 0),, \
    $(shell mkdir -p $(dir)) \
  ) \
)

export PATH := $(abspath $(OUTPUT_BIN_DIR)):$(abspath $(OUTPUT_TOOLS_DIR)):$(PATH)

#
# Binaries.
#
# Note: Need to use abspath so we can invoke these from subdirectories
CONTROLLER_GEN_VER := v0.15.0
CONTROLLER_GEN_BIN := controller-gen
CONTROLLER_GEN := $(abspath $(OUTPUT_TOOLS_DIR)/$(CONTROLLER_GEN_BIN)-$(CONTROLLER_GEN_VER))
CONTROLLER_GEN_PKG := sigs.k8s.io/controller-tools/cmd/controller-gen


.PHONY: help
help: ## list makefile targets
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

## --------------------------------------
## Binaries
## --------------------------------------

##@ build:

.PHONY: build
build: # build binary
	@GOOS=$(GOOS) GOARCH=$(GOARCH) go build -ldflags "${LDFLAGS}" -o telemetry

## --------------------------------------
## Generate / Manifests
## --------------------------------------:

##@ generate:

.PHONY: generate-go-deepcopy
generate-go-deepcopy: $(CONTROLLER_GEN) ## Generate deepcopy object
	$(MAKE) clean-generated-deepcopy SRC_DIRS="./pkg/apis/"
	$(CONTROLLER_GEN) \
		object:headerFile=./hack/boilerplate.go.txt \
		paths=./pkg/apis/...

.PHONY: generate-manifests
generate-manifests: $(CONTROLLER_GEN) ## Generate manifests e.g. CRD, RBAC etc.
	$(CONTROLLER_GEN) \
		paths=./pkg/apis/... \
		crd \
		output:crd:dir=./crds/

## --------------------------------------
## Hack / Tools
## --------------------------------------

##@ hack/tools:

.PHONY: $(CONTROLLER_GEN_BIN)
$(CONTROLLER_GEN_BIN): $(CONTROLLER_GEN) ## Build a local copy of controller-gen.

$(CONTROLLER_GEN): # Build controller-gen into tools folder.
	@if [ ! -f $(OUTPUT_TOOLS_DIR)/$(CONTROLLER_GEN_BIN) ]; then \
		CGO_ENABLED=0 GOBIN=$(OUTPUT_TOOLS_DIR) $(GO_INSTALL) $(CONTROLLER_GEN_PKG) $(CONTROLLER_GEN_BIN) $(CONTROLLER_GEN_VER); \
	fi

## --------------------------------------
## Cleanup / Verification
## --------------------------------------

##@ clean:

.PHONY: clean
clean: ## Remove all generated files
	$(MAKE) clean-output clean-generated-deepcopy

.PHONY: clean-output
clean-output: ## Remove all generated binaries
	rm -rf $(OUTPUT_DIR)

.PHONY: clean-generated-deepcopy
clean-generated-deepcopy: ## Remove files generated by conversion-gen from the mentioned dirs. Example SRC_DIRS="./api/v1beta1"
	(IFS=','; for i in $(SRC_DIRS); do find $$i -type f -name 'zz_generated.deepcopy*' -exec rm -f {} \;; done)