fix frps service init

cmd/frps/root.go

@@ -97,7 +97,17 @@ var rootCmd = &cobra.Command{
 		}
 
 		if !service.Interactive() {
-			if err := srvCmd.Execute(); err != nil {
+			var err error
+			srv, err = service.New(&serviceFRP{}, &service.Config{
+				Name:        srvName,
+				DisplayName: srvDName,
+				Description: srvDesc,
+			})
+			if err != nil {
+				fmt.Println(err)
+				os.Exit(1)
+			}
+			if err = srv.Run(); err != nil {
 				fmt.Println(err)
 				os.Exit(1)
 			}

cmd/frps/service.go

@@ -38,12 +38,6 @@ func init() {
 	rootCmd.PersistentFlags().StringVar(&srvDName, "display_name", "frps", "Service display name")
 	rootCmd.PersistentFlags().StringVar(&srvDesc, "description", "frps service", "Service description")
 
-	if !service.Interactive() {
-		srvCmd.RunE = func(cmd *cobra.Command, args []string) error {
-			return srv.Run()
-		}
-	}
-
 	srvCmd.AddCommand(installSrvCmd, uninstallSrvCmd, startSrvCmd, stopSrvCmd, restartSrvCmd)
 	rootCmd.AddCommand(srvCmd)
 }