GIT_VERSION = $(shell git describe --tags --always)

GIT_HEAD ?= $(shell git log -1 --format=%H)

NOW_GO_RFC339 = $(shell date --utc +'%Y-%m-%dT%H:%M:%SZ')

export CGO_ENABLED ?= 0

export GOFLAGS ?= -mod=readonly -trimpath

OUTPUT_DIR ?= _build

GO_DEFINES ?= -X main.BuildTag=$(GIT_VERSION) -X main.BuildCommit=$(GIT_HEAD) -X main.BuildDate=$(NOW_GO_RFC339)

GO_LDFLAGS += -w -extldflags '-static' $(GO_DEFINES)

GO_BUILD_FLAGS ?= -v -ldflags '$(GO_LDFLAGS)'

GO_TEST_FLAGS ?= -v -race

default: build

.PHONY: build

build:

go build $(GO_BUILD_FLAGS) -o $(OUTPUT_DIR)/ .

.PHONY: install

install:

go install $(GO_BUILD_FLAGS) .

.PHONY: test

test:

CGO_ENABLED=1 go test $(GO_TEST_FLAGS) ./...

.PHONY: clean

clean:

rm -rf $(OUTPUT_DIR)

.PHONY: lint

lint:

golangci-lint run ./...