init

.gitignore

@@ -0,0 +1 @@
+main

Makefile

@@ -0,0 +1,12 @@
+VERSION := $(shell cat VERSION)
+BUILD_USER := $(shell whoami)
+BUILD_DATE := $(shell date -u '+%Y-%m-%dT%H:%M:%SZ')
+GIT_COMMIT := $(shell git rev-list -1 HEAD)
+GIT_SHORT_COMMIT := $(shell git rev-parse --short HEAD)
+GIT_BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
+
+
+GOLDFLAGS = "-X main.Version=$(VERSION) -X main.GitBranch=$(GIT_BRANCH) -X main.GitCommit=$(GIT_COMMIT) -X main.BuildUser=$(BUILD_USER) -X main.BuildDate=$(BUILD_DATE)"
+
+build:
+	GOOS=$(GOOS) GOARCH=$(GOARCH) go build -ldflags $(GOLDFLAGS) -o main

VERSION

@@ -0,0 +1 @@
+1.0.0

main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"runtime"
+)
+
+func main() {
+	versionFlag := flag.Bool("version", false, "Print version information and quit")
+	flag.Parse()
+	if *versionFlag {
+		printVersion()
+	}
+}
+
+var (
+	Version   string
+	GitBranch string
+	GitCommit string
+	BuildUser string
+	BuildDate string
+)
+
+func printVersion() {
+	fmt.Printf(`version %s
+build user: %s
+build date: %s
+go version: %s
+platform: %s/%s
+git branch: %s
+git commit: %s
+`, Version, BuildUser, BuildDate, runtime.Version(), runtime.GOOS, runtime.GOARCH, GitBranch, GitCommit)
+}