sync channel, sharing data between the server and cli packages

app/main.go

@@ -46,6 +46,7 @@ type realize struct {
 	Blueprint                        c.Blueprint
 	Server                           s.Server
 	Files                            map[string]string
+	Sync                            chan string
 }
 
 // Application initialization
@@ -59,11 +60,16 @@ func init() {
 			"config": Config,
 			"output": Output,
 		},
+		Sync: make(chan string),
+	}
+	r.Blueprint = c.Blueprint{
+		Files: r.Files,
+		Sync: r.Sync,
 	}
-	r.Blueprint = c.Blueprint{Files: r.Files}
 	r.Server = s.Server{
 		Blueprint: &r.Blueprint,
 		Files:     r.Files,
+		Sync:     r.Sync,
 	}
 	r.Increase()
 	R = &r

cli/exec.go

@@ -56,6 +56,8 @@ func (p *Project) GoRun(channel chan bool, runner chan bool, wr *sync.WaitGroup)
 				} else {
 					p.Buffer.StdOut = append(p.Buffer.StdOut, output.Text())
 				}
+				go func() { p.parent.Sync <- "sync" }()
+
 				if p.Watcher.Output["cli"] {
 					log.Println(pname(p.Name, 3), ":", BlueS(output.Text()))
 				}

cli/main.go

@@ -26,6 +26,7 @@ type logWriter struct{}
 type Blueprint struct {
 	Projects []Project         `yaml:"projects,omitempty"`
 	Files    map[string]string `yaml:"-"`
+	Sync     chan string
 }
 
 // Project defines the informations of a single project

server/main.go

@@ -16,6 +16,7 @@ import (
 type Server struct {
 	Blueprint *c.Blueprint
 	Files     map[string]string
+	Sync      chan string
 }
 
 func render(c echo.Context, path string) error {
@@ -35,29 +36,33 @@ func (s *Server) Start() {
 	e := echo.New()
 	e.Use(middleware.Gzip())
 	e.GET("/", func(c echo.Context) error {
-		return c.JSON(200, s.Blueprint)
+		return c.JSON(200, s.Blueprint.Projects)
 		//return render(c, "server/assets/index.html")
 	})
 
-	e.GET("/projects", standard.WrapHandler(projects()))
+	e.GET("/projects", standard.WrapHandler(s.projects()))
 	go e.Run(standard.New(":5000"))
 }
 
 // The WebSocket for projects list
-func projects() websocket.Handler {
+func (s *Server) projects() websocket.Handler {
 	return websocket.Handler(func(ws *websocket.Conn) {
-		for {
-			message, _ := json.Marshal("")
+		msg := func() {
+			fmt.Println("tick")
+			message, _ := json.Marshal(s.Blueprint.Projects)
 			err := websocket.Message.Send(ws, string(message))
-			fmt.Println("")
-			if err != nil {
-				log.Fatal(err)
-			}
-			msg := ""
-			err = websocket.Message.Receive(ws, &msg)
 			if err != nil {
 				log.Fatal(err)
 			}
 		}
+		msg()
+		for {
+			select {
+			default:
+				continue
+			case <-s.Sync:
+				msg()
+			}
+		}
 	})
 }