package cmd import ( "fmt" "github.com/containous/flaeg" "github.com/containous/traefik/version" "io" "os" "runtime" "text/template" ) var versionTemplate = `Version: {{.Version}} Codename: {{.Codename}} Go version: {{.GoVersion}} Built: {{.BuildTime}} OS/Arch: {{.Os}}/{{.Arch}}` // NewVersionCmd builds a new Version command func NewVersionCmd() *flaeg.Command { //version Command init return &flaeg.Command{ Name: "version", Description: `Print version`, Config: struct{}{}, DefaultPointersConfig: struct{}{}, Run: func() error { if err := getVersionPrint(os.Stdout); err != nil { return err } fmt.Printf("\n") return nil }, } } func getVersionPrint(wr io.Writer) error { tmpl, err := template.New("").Parse(versionTemplate) if err != nil { return err } v := struct { Version string Codename string GoVersion string BuildTime string Os string Arch string }{ Version: version.Version, Codename: version.Codename, GoVersion: runtime.Version(), BuildTime: version.BuildDate, Os: runtime.GOOS, Arch: runtime.GOARCH, } return tmpl.Execute(wr, v) }