package main import ( "bufio" "fmt" "io" "log" "os" "os/exec" path "path/filepath" "regexp" ) var cmdVersion = &Command{ UsageLine: "version", Short: "show the Bee, Beego and Go version", Long: ` show the Bee, Beego and Go version bee version bee :1.2.3 beego :1.4.2 Go :go version go1.3.3 linux/amd64 `, } func init() { cmdVersion.Run = versionCmd } func versionCmd(cmd *Command, args []string) int { fmt.Println("bee :" + version) fmt.Println("beego :" + getbeegoVersion()) //fmt.Println("Go :" + runtime.Version()) goversion, err := exec.Command("go", "version").Output() if err != nil { log.Fatal(err) } fmt.Println("Go :" + string(goversion)) return 0 } func getbeegoVersion() string { gopath := os.Getenv("GOPATH") re, err := regexp.Compile(`VERSION = "([0-9.]+)"`) if err != nil { return "" } if gopath == "" { err = fmt.Errorf("you should set GOPATH in the env") return "" } wgopath := path.SplitList(gopath) for _, wg := range wgopath { wg, _ = path.EvalSymlinks(path.Join(wg, "src", "github.com", "astaxie", "beego")) filename := path.Join(wg, "beego.go") _, err := os.Stat(filename) if err != nil { if os.IsNotExist(err) { continue } ColorLog("[ERRO] get beego.go has error\n") } fd, err := os.Open(filename) if err != nil { ColorLog("[ERRO] open beego.go has error\n") continue } reader := bufio.NewReader(fd) for { byteLine, _, er := reader.ReadLine() if er != nil && er != io.EOF { return "" } if er == io.EOF { break } line := string(byteLine) s := re.FindStringSubmatch(line) if len(s) >= 2 { return s[1] } } } return "you don't install beego,install first: github.com/astaxie/beego" }