Makefile

BINDIR      := $(CURDIR)/bin
DIST_DIRS   := find * -type d -exec
TARGETS     := darwin/amd64 darwin/arm64 linux/amd64 linux/arm64 windows/amd64
BINNAME     ?= filter-proxy

GOBIN         = $(shell go env GOBIN)
ifeq ($(GOBIN),)
GOBIN         = $(shell go env GOPATH)/bin
endif
GOX           = $(GOBIN)/gox
GOIMPORTS     = $(GOBIN)/goimports
ARCH          = $(shell uname -p)

# go option
PKG         := ./...
TAGS        :=
TESTS       := .
TESTFLAGS   :=
LDFLAGS     := -w -s
GOFLAGS     :=
CGO_ENABLED ?= 0

SRC := $(shell find . -type f -name '*.go' -print) go.mod go.sum

SHELL      = /usr/bin/env bash

GIT_COMMIT = $(shell git rev-parse HEAD)
GIT_SHA    = $(shell git rev-parse --short HEAD)
GIT_TAG    = $(shell git describe --tags --abbrev=0 --exact-match 2>/dev/null)
GIT_DIRTY  = $(shell test -n "`git status --porcelain`" && echo "dirty" || echo "clean")

.PHONY: all
all: build

.PHONY: build
build: $(BINDIR)/$(BINNAME)

$(BINDIR)/$(BINNAME): $(SRC)
	GO111MODULE=on CGO_ENABLED=$(CGO_ENABLED) go build $(GOFLAGS) -trimpath -tags '$(TAGS)' -ldflags '$(LDFLAGS)' -o '$(BINDIR)'/$(BINNAME) ./cmd/filter-proxy

$(GOX):
	(cd /; GO111MODULE=on go install github.com/mitchellh/gox@latest)

$(GOIMPORTS):
	(cd /; GO111MODULE=on go install golang.org/x/tools/cmd/goimports@latest)

.PHONY: build-cross
build-cross: LDFLAGS += -extldflags "-static"
build-cross: $(GOX)
	GOFLAGS="-trimpath" GO111MODULE=on CGO_ENABLED=0 $(GOX) -parallel=3 -output="_dist/{{.OS}}-{{.Arch}}/$(BINNAME)" -osarch='$(TARGETS)' $(GOFLAGS) -tags '$(TAGS)' -ldflags '$(LDFLAGS)' ./cmd/filter-proxy

.PHONY: dist
dist:
	( \
		cd _dist && \
		$(DIST_DIRS) cp ../LICENCE {} \; && \
		$(DIST_DIRS) cp ../README.md {} \; && \
		$(DIST_DIRS) tar -zcf filter-proxy-${VERSION}-{}.tar.gz {} \; && \
		$(DIST_DIRS) zip -r filter-proxy-${VERSION}-{}.zip {} \; \
	)

.PHONY: checksum
checksum:
	for f in $$(ls _dist/*.{gz,zip} 2>/dev/null) ; do \
		shasum -a 256 "$${f}" | sed 's/_dist\///' > "$${f}.sha256sum" ; \
		shasum -a 256 "$${f}" | awk '{print $$1}' > "$${f}.sha256" ; \
	done

.PHONY: clean
clean:
	@rm -rf '$(BINDIR)' ./_dist

.PHONY: info
info:
	 @echo "Version:           ${VERSION}"
	 @echo "Git Tag:           ${GIT_TAG}"
	 @echo "Git Commit:        ${GIT_COMMIT}"
	 @echo "Git Tree State:    ${GIT_DIRTY}"