Makefile

# A Self-Documenting Makefile: http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html

# Project variables
PACKAGE = github.com/banzaicloud/jwt-to-rbac
BINARY_NAME ?= jwt-to-rbac
DOCKER_IMAGE = banzaicloud/jwt-to-rbac

# Build variables
BUILD_DIR ?= build
BUILD_PACKAGE = ${PACKAGE}/cmd
VERSION ?= $(shell git rev-parse --abbrev-ref HEAD)
COMMIT_HASH ?= $(shell git rev-parse --short HEAD 2>/dev/null)
BUILD_DATE ?= $(shell date +%FT%T%z)
LDFLAGS += -X main.version=${VERSION} -X main.commitHash=${COMMIT_HASH} -X main.buildDate=${BUILD_DATE}
export CGO_ENABLED ?= 0
ifeq (${VERBOSE}, 1)
	GOARGS += -v
endif

# Docker variables
DOCKER_TAG ?= $(shell echo ${VERSION} | sed 's/\//-/')

# Dependency versions
GOLANGCI_VERSION = 1.42.1
LICENSEI_VERSION = 0.3.1

GOLANG_VERSION = 1.16

.PHONY: clean
clean: ## Clean the working area and the project
	rm -rf bin/ ${BUILD_DIR}/ vendor/

.PHONY: build
build: GOARGS += -tags "${GOTAGS}" -ldflags "${LDFLAGS}"
build: ## Build a binary
ifeq (${VERBOSE}, 1)
	go env
endif
ifneq (${IGNORE_GOLANG_VERSION_REQ}, 1)
	@printf "${GOLANG_VERSION}\n$$(go version | awk '{sub(/^go/, "", $$3);print $$3}')" | sort -t '.' -k 1,1 -k 2,2 -k 3,3 -g | head -1 | grep -q -E "^${GOLANG_VERSION}$$" || (printf "Required Go version is ${GOLANG_VERSION}\nInstalled: `go version`" && exit 1)
endif

	@$(eval GENERATED_BINARY_NAME = ${BINARY_NAME})
	@$(if $(strip ${BINARY_NAME_SUFFIX}),$(eval GENERATED_BINARY_NAME = ${BINARY_NAME}-$(subst $(eval) ,-,$(strip ${BINARY_NAME_SUFFIX}))),)
	go build ${GOARGS} -o ${BUILD_DIR}/${GENERATED_BINARY_NAME} ${BUILD_PACKAGE}

.PHONY: build-release
build-release: LDFLAGS += -w
build-release: build ## Build a binary without debug information

.PHONY: build-debug
build-debug: GOARGS += -gcflags "all=-N -l"
build-debug: BINARY_NAME_SUFFIX += debug
build-debug: build ## Build a binary with remote debugging capabilities

.PHONY: docker
docker: ## Build a Docker image
	docker build --build-arg BUILD_DIR=${BUILD_DIR} --build-arg BINARY_NAME=${GENERATED_BINARY_NAME} -t ${DOCKER_IMAGE}:${DOCKER_TAG} -f Dockerfile .
ifeq (${DOCKER_LATEST}, 1)
	docker tag ${DOCKER_IMAGE}:${DOCKER_TAG} ${DOCKER_IMAGE}:latest
endif

.PHONY: docker-debug
docker-debug: export GOOS = linux
docker-debug: BINARY_NAME_SUFFIX += docker
docker-debug: build-debug ## Build a Docker image with remote debugging capabilities
	docker build --build-arg BUILD_DIR=${BUILD_DIR} --build-arg BINARY_NAME=${GENERATED_BINARY_NAME} -t ${DOCKER_IMAGE}:${DOCKER_TAG}-debug -f Dockerfile.debug .

.PHONY: check
check: test lint ## Run tests and linters

bin/licensei: bin/licensei-${LICENSEI_VERSION}
	@ln -sf licensei-${LICENSEI_VERSION} bin/licensei
bin/licensei-${LICENSEI_VERSION}:
	@mkdir -p bin
	curl -sfL https://raw.githubusercontent.com/goph/licensei/master/install.sh | bash -s v${LICENSEI_VERSION}
	@mv bin/licensei $@

.PHONY: license-check
license-check: bin/licensei ## Run license check
	bin/licensei check
	./scripts/check-header.sh

.PHONY: license-cache
license-cache: bin/licensei ## Generate license cache
	bin/licensei cache

.PHONY: test
test: GOARGS += -tags "${GOTAGS}"
test: ## Run all tests
	go test ${GOARGS} ./...

bin/golangci-lint: bin/golangci-lint-${GOLANGCI_VERSION}
	@ln -sf golangci-lint-${GOLANGCI_VERSION} bin/golangci-lint
bin/golangci-lint-${GOLANGCI_VERSION}:
	@mkdir -p bin
	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v${GOLANGCI_VERSION}
	@mv bin/golangci-lint $@

.PHONY: lint
lint: bin/golangci-lint ## Run linter
	bin/golangci-lint run

release-%: ## Release a new version
	git tag -s -m 'Release $*' $*

	@echo "Version updated to $*!"
	@echo "To push the changes execute:"
	@echo
	@echo "git push origin $*"

.PHONY: patch
patch: ## Release a new patch version
	@${MAKE} release-$(shell git describe --abbrev=0 --tags | sed 's/^v//' | awk -F'[ .]' '{print $$1"."$$2"."$$3+1}')

.PHONY: minor
minor: ## Release a new minor version
	@${MAKE} release-$(shell git describe --abbrev=0 --tags | sed 's/^v//' | awk -F'[ .]' '{print $$1"."$$2+1".0"}')

.PHONY: major
major: ## Release a new major version
	@${MAKE} release-$(shell git describe --abbrev=0 --tags | sed 's/^v//' | awk -F'[ .]' '{print $$1+1".0.0"}')

.PHONY: list
list: ## List all make targets
	@${MAKE} -pRrn : -f $(MAKEFILE_LIST) 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | egrep -v -e '^[^[:alnum:]]' -e '^$@$$' | sort

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

# Variable outputting/exporting rules
var-%: ; @echo $($*)
varexport-%: ; @echo $*=$($*)