Update help printer

cmd/cmd.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"flag"
 	"fmt"
+	"io"
 	"math/rand"
 	"os"
 	"strings"
@@ -160,6 +161,11 @@ var (
 
 func init() {
 	rand.Seed(time.Now().Unix())
+	help := cli.HelpPrinter
+	cli.HelpPrinter = func(writer io.Writer, templ string, data interface{}) {
+		help(writer, templ, data)
+		os.Exit(0)
+	}
 }
 
 func newCmd(opts ...Option) Cmd {
@@ -174,6 +180,10 @@ func newCmd(opts ...Option) Cmd {
 		o(&options)
 	}
 
+	if len(options.Description) == 0 {
+		options.Description = "a go-micro service"
+	}
+
 	cmd := new(cmd)
 	cmd.opts = options
 	cmd.app = cli.NewApp()
@@ -183,6 +193,11 @@ func newCmd(opts ...Option) Cmd {
 	cmd.app.Before = cmd.Before
 	cmd.app.Flags = DefaultFlags
 	cmd.app.Action = func(c *cli.Context) {}
+
+	if len(options.Version) == 0 {
+		cmd.app.HideVersion = true
+	}
+
 	return cmd
 }
 

options.go

@@ -28,7 +28,6 @@ type Options struct {
 func newOptions(opts ...Option) Options {
 	opt := Options{
 		Broker:    broker.DefaultBroker,
-		Cmd:       cmd.DefaultCmd,
 		Client:    client.DefaultClient,
 		Server:    server.DefaultServer,
 		Registry:  registry.DefaultRegistry,
@@ -40,6 +39,14 @@ func newOptions(opts ...Option) Options {
 		o(&opt)
 	}
 
+	// New Command
+	if opt.Cmd == nil {
+		opt.Cmd = cmd.NewCmd(
+			cmd.Name(opt.Server.Options().Name),
+			cmd.Version(opt.Server.Options().Version),
+		)
+	}
+
 	return opt
 }
 

service.go

@@ -32,6 +32,11 @@ func newService(opts ...Option) Service {
 
 func (s *service) Init(opts ...Option) {
 	s.opts.Cmd.Init()
+
+	for _, o := range opts {
+		o(&s.opts)
+	}
+
 	s = newService(opts...).(*service)
 }