compile git version inside go binary

.gitignore

mybinary

Readme.md

Compile git version inside go binary

main.go

package main

import "fmt"

var Version string
var Buildtime string

func main() {
	fmt.Printf("Version: %s\n", Version)
	fmt.Printf("Buildtime: %s\n", Buildtime)
}

Makefile

VERSION := $(shell git rev-parse --short HEAD)
BUILDTIME := $(shell date -u '+%Y-%m-%dT%H:%M:%SZ')

GOLDFLAGS += -X main.Version=$(VERSION)
GOLDFLAGS += -X main.Buildtime=$(BUILDTIME)
GOFLAGS = -ldflags "$(GOLDFLAGS)"

run: build
	./mybinary

build:
	go build -o mybinary $(GOFLAGS) .