Makefile

PACKAGE  = app
DATE    ?= $(shell date +%FT%T%z)
VERSION ?= $(shell git describe --tags --always --dirty --match=v* 2> /dev/null || \
			cat $(CURDIR)/.version 2> /dev/null || echo v0)
PKGS     = $(or $(PKG),$(shell env GO111MODULE=on $(GO) list ./...))
TESTPKGS = $(shell env GO111MODULE=on $(GO) list -f '{{ if or .TestGoFiles .XTestGoFiles }}{{ .ImportPath }}{{ end }}' $(PKGS))
BIN      = $(CURDIR)/bin

GO      = go
GODOC   = godoc
TIMEOUT = 15
V = 0
Q = $(if $(filter 1,$V),,@)
M = $(shell printf "\033[34;1m▶\033[0m")

export GO111MODULE=on

.PHONY: all
all: $(BIN) ; $(info $(M) building executable…) @ ## Build program binary
	$Q $(GO) build \
		-tags release \
		-ldflags '-X $(PACKAGE)/cmd.Version=$(VERSION) -X $(PACKAGE)/cmd.BuildDate=$(DATE)' \
		-o $(BIN)/$(PACKAGE) ./cmd/...

# Tools

$(BIN):
	@mkdir -p $@
$(BIN)/%: | $(BIN) ; $(info $(M) building $(REPOSITORY)…)
	$Q tmp=$$(mktemp -d); \
	   env GO111MODULE=off GOCACHE=off GOPATH=$$tmp GOBIN=$(BIN) $(GO) get $(REPOSITORY) \
		|| ret=$$?; \
	   rm -rf $$tmp ; exit $$ret

# Misc

.PHONY: clean
clean: ; $(info $(M) cleaning…)	@ ## Cleanup everything
	@rm -rf $(BIN)
	@rm -rf test/tests.* test/coverage.*

.PHONY: help
help:
	@grep -E '^[ a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | \
		awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-15s\033[0m %s\n", $$1, $$2}'

.PHONY: version
version:
	@echo $(VERSION)