package version

import (

    "flag"

    "fmt"

    "os"

)

var (

    BuildVersion = "0.0"

    BuildTime    = ""

    CommitID     = "xxxxx"

)

func Parse() {

    var showVer bool

    flag.BoolVar(&showVer, "v", false, "show build version")

    flag.Parse()

    if showVer {

        fmt.Printf("build ver:\t%s\n", BuildVersion)

        fmt.Printf("build time:\t%s\n", BuildTime)

        fmt.Printf("Commit ID:\t%s\n", CommitID)

        os.Exit()

    }

}

BUILD_VERSION   := $(SERVER_VERSION)

BUILD_TIME      := $(shell date "+%F %T")

COMMIT_SHA1     := $(shell git rev-parse HEAD )

all myapp

myapp:

    go build -gcflags "-N -l" \

    -ldflags                                    \

    "                                           \

    -X 'version.BuildVersion=${BUILD_VERSION}'  \

    -X 'version.BuildTime=${BUILD_TIME}'        \

    -X 'version.CommitID=${COMMIT_SHA1}'        \

    "                                           \

    myapp