将版本信息打包到go的二进制中

package main

import "fmt"

var (
   Tag      = "v0.0.0"
   CommitID = ""
   Branch   = ""
   DATE     = ""
)

func main() {
   fmt.Println("tag:", Tag, "branch:", Branch, "commitID:", CommitID, "DATE:", DATE)
}

#!/bin/sh

# 获取当前commit号
CommitID=$(git rev-parse HEAD)

# 获取当前分支名称
Branch=$(git rev-parse --abbrev-ref HEAD)

# 获取最近的tag
Tag=$(git describe --abbrev=0 --tags)

# 打包时间
DATE=$(date +'%Y-%m-%dT%H:%M:%m+08:00') 

go build -ldflags "-X 'main.Tag=$Tag' -X 'main.Branch=$Branch' -X 'main.CommitID=$CommitID' -X 'main.DATE=$DATE'"