func NewClientLogger(client *stomp.Client, id int64, limit int64) LoggerFunc {
var size int64
var dest = fmt.Sprintf("/topic/logs.%d", id)
var opts = []stomp.MessageOption{
stomp.WithRetain("all"),
}
return func(line *build.Line) {
if size > limit {
return
}
if err := client.SendJSON(dest, line, opts...); err != nil {
logrus.Errorf("Error streaming build logs. %s", err)
}
size += int64(len(line.Out))
}
}
// NewClientUpdater returns an updater that sends updated build details
// to the drone server.
func NewClientUpdater(client *stomp.Client) UpdateFunc {
return func(w *model.Work) {
err := client.SendJSON("/queue/updates", w)
if err != nil {
logger.Warningf("Error updating %s/%s#%d.%d. %s",
w.Repo.Owner, w.Repo.Name, w.Build.Number, w.Job.Number, err)
}
if w.Job.Status != model.StatusRunning {
var dest = fmt.Sprintf("/topic/logs.%d", w.Job.ID)
var opts = []stomp.MessageOption{
stomp.WithHeader("eof", "true"),
stomp.WithRetain("all"),
}
if err := client.Send(dest, []byte("eof"), opts...); err != nil {
logger.Warningf("Error sending eof %s/%s#%d.%d. %s",
w.Repo.Owner, w.Repo.Name, w.Build.Number, w.Job.Number, err)
}
}
}
}
// HandleUpdate handles build updates from the agent and persists to the database.
func HandleUpdate(c context.Context, message *stomp.Message) {
defer func() {
message.Release()
if r := recover(); r != nil {
err := r.(error)
logrus.Errorf("Panic recover: broker update handler: %s", err)
}
}()
work := new(model.Work)
if err := message.Unmarshal(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 {
logrus.Errorf("Unable to find build. %s", err)
return
}
job, err := store.GetJob(c, work.Job.ID)
if err != nil {
logrus.Errorf("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
job.Error = work.Job.Error
if build.Status == model.StatusPending {
build.Started = work.Job.Started
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 {
logrus.Errorf("Unable to update job. %s", err)
return
}
if ok {
// 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, uerr := store.GetUser(c, work.User.ID)
if uerr != nil {
logrus.Errorf("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))
}
client := stomp.MustFromContext(c)
err = client.SendJSON("/topic/events", model.Event{
Type: func() model.EventType {
// HACK we don't even really care about the event type.
// so we should just simplify how events are triggered.
if job.Status == model.StatusRunning {
return model.Started
}
return model.Finished
}(),
Repo: *work.Repo,
Build: *build,
Job: *job,
},
stomp.WithHeader("repo", work.Repo.FullName),
stomp.WithHeader("private", strconv.FormatBool(work.Repo.IsPrivate)),
)
if err != nil {
logrus.Errorf("Unable to publish to /topic/events. %s", err)
}
if job.Status == model.StatusRunning {
return
}
var buf bytes.Buffer
var sub []byte
done := make(chan bool)
dest := fmt.Sprintf("/topic/logs.%d", job.ID)
sub, err = client.Subscribe(dest, stomp.HandlerFunc(func(m *stomp.Message) {
defer m.Release()
if m.Header.GetBool("eof") {
done <- true
return
}
buf.Write(m.Body)
buf.WriteByte('\n')
}))
if err != nil {
logrus.Errorf("Unable to read logs from broker. %s", err)
return
}
defer func() {
client.Unsubscribe(sub)
client.Send(dest, []byte{}, stomp.WithRetain("remove"))
}()
select {
case <-done:
case <-time.After(30 * time.Second):
logrus.Errorf("Unable to read logs from broker. Timeout. %s", err)
return
}
if err := store.WriteLog(c, job, &buf); err != nil {
logrus.Errorf("Unable to write logs to store. %s", err)
return
}
}