Converting from a Makefile

Here's an example Makefile that we'll "Divide and Conquer" in the next conversion tutorials.

Makefile

Makefile

BINARY      := superdo
VET_REPORT  := vet.report
TEST_REPORT := tests.xml
GOARCH      := amd64

VERSION ?= ?
COMMIT  := $(shell git rev-parse HEAD)
BRANCH  := $(shell git rev-parse --abbrev-ref HEAD)

GITHUB_USERNAME := turtlemonvh
BUILD_DIR       := ${GOPATH}/src/github.com/${GITHUB_USERNAME}/${BINARY}
CURRENT_DIR     := $(shell pwd)
BUILD_DIR_LINK  := $(shell readlink ${BUILD_DIR})

LDFLAGS := -ldflags "-X main.VERSION=${VERSION} -X main.COMMIT=${COMMIT} -X main.BRANCH=${BRANCH}"

.PHONY: %

all: link clean test vet build

link:
    if [ "${BUILD_DIR_LINK}" != "${CURRENT_DIR}" ]; then \
        echo "Fixing symlinks for build"; \
        rm -f ${BUILD_DIR}; \
        ln -s ${CURRENT_DIR} ${BUILD_DIR}; \
    fi

build: build.linux build.darwin build.windows

build.linux:
    cd ${BUILD_DIR}; \
    GOOS=linux GOARCH=${GOARCH} \
      go build ${LDFLAGS} -o ${BINARY}-linux-${GOARCH} .

build.darwin:
    cd ${BUILD_DIR}; \
    GOOS=darwin GOARCH=${GOARCH} \
      go build ${LDFLAGS} -o ${BINARY}-darwin-${GOARCH} .

build.windows:
    cd ${BUILD_DIR}; \
    GOOS=windows GOARCH=${GOARCH} \
      go build ${LDFLAGS} -o ${BINARY}-windows-${GOARCH}.exe .

test:
    if ! hash go2xunit 2>/dev/null; then go install github.com/tebeka/go2xunit; fi
    cd ${BUILD_DIR}; \
    go test -v ./... 2>&1 | go2xunit -output ${TEST_REPORT}

vet:
    cd ${BUILD_DIR}; \
    go vet ./... > ${VET_REPORT} 2>&1

fmt:
    cd ${BUILD_DIR}; \
    go fmt $$(go list ./... | grep -v /vendor/)

clean:
    -rm -f ${TEST_REPORT}
    -rm -f ${VET_REPORT}
    -rm -f ${BINARY}-*