Example #1
0
File: queue.go Project: Ablu/drone
// WriteLogs handles an http request from the agent to stream build logs from
// the agent to the server to enable real time streamings to the client.
func WriteLogs(c *gin.Context) {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		c.String(500, "Invalid input. %s", err)
		return
	}

	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
	if err != nil {
		c.String(500, "Cannot upgrade to websocket. %s", err)
		return
	}
	defer conn.Close()

	wc, err := stream.Writer(c, stream.ToKey(id))
	if err != nil {
		c.String(500, "Cannot create stream writer. %s", err)
		return
	}
	defer func() {
		wc.Close()
		stream.Delete(c, stream.ToKey(id))
	}()

	var msg []byte
	for {
		_, msg, err = conn.ReadMessage()
		if err != nil {
			break
		}
		wc.Write(msg)
		wc.Write(newline)
	}

	if err != nil && err != io.EOF {
		c.String(500, "Error reading logs. %s", err)
		return
	}
	//
	// rc, err := stream.Reader(c, stream.ToKey(id))
	// if err != nil {
	// 	c.String(500, "Failed to create stream reader. %s", err)
	// 	return
	// }
	//
	// wg := sync.WaitGroup{}
	// wg.Add(1)
	//
	// go func() {
	// 	defer recover()
	// 	store.WriteLog(c, &model.Job{ID: id}, rc)
	// 	wg.Done()
	// }()
	//
	// wc.Close()
	// wg.Wait()

}
Example #2
0
func GetStream(c *gin.Context) {

	repo := session.Repo(c)
	buildn, _ := strconv.Atoi(c.Param("build"))
	jobn, _ := strconv.Atoi(c.Param("number"))

	c.Writer.Header().Set("Content-Type", "text/event-stream")

	build, err := store.GetBuildNumber(c, repo, buildn)
	if err != nil {
		log.Debugln("stream cannot get build number.", err)
		c.AbortWithError(404, err)
		return
	}
	job, err := store.GetJobNumber(c, build, jobn)
	if err != nil {
		log.Debugln("stream cannot get job number.", err)
		c.AbortWithError(404, err)
		return
	}

	rc, err := stream.Reader(c, stream.ToKey(job.ID))
	if err != nil {
		c.AbortWithError(404, err)
		return
	}

	go func() {
		<-c.Writer.CloseNotify()
		rc.Close()
	}()

	var line int
	var scanner = bufio.NewScanner(rc)
	for scanner.Scan() {
		line++
		var err = sse.Encode(c.Writer, sse.Event{
			Id:    strconv.Itoa(line),
			Event: "message",
			Data:  scanner.Text(),
		})
		if err != nil {
			break
		}
		c.Writer.Flush()
	}

	log.Debugf("Closed stream %s#%d", repo.FullName, build.Number)
}
Example #3
0
File: queue.go Project: Ablu/drone
// Pull is a long request that polls and attemts to pull work off the queue stack.
func Pull(c *gin.Context) {
	logrus.Debugf("Agent %s connected.", c.ClientIP())

	w := queue.PullClose(c, c.Writer)
	if w == nil {
		logrus.Debugf("Agent %s could not pull work.", c.ClientIP())
	} else {

		// setup the channel to stream logs
		if err := stream.Create(c, stream.ToKey(w.Job.ID)); err != nil {
			logrus.Errorf("Unable to create stream. %s", err)
		}

		c.JSON(202, w)

		logrus.Debugf("Agent %s assigned work. %s/%s#%d.%d",
			c.ClientIP(),
			w.Repo.Owner,
			w.Repo.Name,
			w.Build.Number,
			w.Job.Number,
		)
	}
}
Example #4
0
// Update handles build updates from the agent  and persists to the database.
func Update(c *gin.Context) {
	work := &queue.Work{}
	if err := c.BindJSON(work); err != nil {
		logrus.Errorf("Invalid input. %s", err)
		return
	}

	// TODO(bradrydzewski) it is really annoying that we have to do this lookup
	// and I'd prefer not to. The reason we do this is because the Build and Job
	// have fields that aren't serialized to json and would be reset to their
	// empty values if we just saved what was coming in the http.Request body.
	build, err := store.GetBuild(c, work.Build.ID)
	if err != nil {
		c.String(404, "Unable to find build. %s", err)
		return
	}
	job, err := store.GetJob(c, work.Job.ID)
	if err != nil {
		c.String(404, "Unable to find job. %s", err)
		return
	}
	build.Started = work.Build.Started
	build.Finished = work.Build.Finished
	build.Status = work.Build.Status
	job.Started = work.Job.Started
	job.Finished = work.Job.Finished
	job.Status = work.Job.Status
	job.ExitCode = work.Job.ExitCode

	if build.Status == model.StatusPending {
		build.Status = model.StatusRunning
		store.UpdateBuild(c, build)
	}

	if job.Status == model.StatusRunning {
		err := stream.Create(c, stream.ToKey(job.ID))
		if err != nil {
			logrus.Errorf("Unable to create stream. %s", err)
		}
	}

	ok, err := store.UpdateBuildJob(c, build, job)
	if err != nil {
		c.String(500, "Unable to update job. %s", err)
		return
	}

	if ok && build.Status != model.StatusRunning {
		// get the user because we transfer the user form the server to agent
		// and back we lose the token which does not get serialized to json.
		user, err := store.GetUser(c, work.User.ID)
		if err != nil {
			c.String(500, "Unable to find user. %s", err)
			return
		}
		remote.Status(c, user, work.Repo, build,
			fmt.Sprintf("%s/%s/%d", work.System.Link, work.Repo.FullName, work.Build.Number))
	}

	if build.Status == model.StatusRunning {
		bus.Publish(c, bus.NewEvent(bus.Started, work.Repo, build, job))
	} else {
		bus.Publish(c, bus.NewEvent(bus.Finished, work.Repo, build, job))
	}

	c.JSON(200, work)
}