// GetRepoEvents will upgrade the connection to a Websocket and will stream
// event updates to the browser.
func GetRepoEvents(c *gin.Context) {
repo := session.Repo(c)
c.Writer.Header().Set("Content-Type", "text/event-stream")
eventc := make(chan *bus.Event, 1)
bus.Subscribe(c, eventc)
defer func() {
bus.Unsubscribe(c, eventc)
close(eventc)
log.Infof("closed event stream")
}()
c.Stream(func(w io.Writer) bool {
select {
case event := <-eventc:
if event == nil {
log.Infof("nil event received")
return false
}
// TODO(bradrydzewski) This is a super hacky workaround until we improve
// the actual bus. Having a per-call database event is just plain stupid.
if event.Repo.FullName == repo.FullName {
var payload = struct {
model.Build
Jobs []*model.Job `json:"jobs"`
}{}
payload.Build = event.Build
payload.Jobs, _ = store.GetJobList(c, &event.Build)
data, _ := json.Marshal(&payload)
sse.Encode(w, sse.Event{
Event: "message",
Data: string(data),
})
}
case <-c.Writer.CloseNotify():
return false
}
return true
})
}
// Wait is a long request that polls and waits for cancelled build requests.
func Wait(c *gin.Context) {
id, err := strconv.ParseInt(c.Param("id"), 10, 64)
if err != nil {
c.String(500, "Invalid input. %s", err)
return
}
eventc := make(chan *bus.Event, 1)
bus.Subscribe(c, eventc)
defer bus.Unsubscribe(c, eventc)
for {
select {
case event := <-eventc:
if event.Job.ID == id && event.Type == bus.Cancelled {
c.JSON(200, event.Job)
return
}
case <-c.Writer.CloseNotify():
return
}
}
}