private void StartStagingInstance(StagingInstance instance, StagingStartMessageRequest pmessage) { StagingWorkspace workspace = new StagingWorkspace(instance.Properties.Directory); try { try { instance.Lock.EnterWriteLock(); instance.Properties.UseDiskQuota = this.useDiskQuota; instance.Properties.UploadThrottleBitsps = this.uploadThrottleBitsps; UriBuilder streamingLog = new UriBuilder(); streamingLog.Host = this.ExternalHost; streamingLog.Scheme = "http"; streamingLog.Path = string.Format("/staging_tasks/{0}/file_path", pmessage.TaskID); streamingLog.Query = string.Format("path={0}×tamp={1}", workspace.StagingLogSuffix, RubyCompatibility.DateTimeToEpochSeconds(DateTime.Now)); instance.Properties.StreamingLogUrl = DEAUtilities.GetHmacedUri(streamingLog.Uri.ToString(), this.directoryServerHmacKey, new string[] { "path", "timestamp" }).ToString(); instance.Workspace = workspace; instance.Properties.TaskLog = workspace.StagingLogPath; } finally { instance.Lock.ExitWriteLock(); } instance.AfterSetup += new StagingInstance.StagingTaskEventHandler(this.AfterStagingSetup); Logger.Info("Started staging task {0}", instance.Properties.TaskId); try { instance.SetupStagingEnvironment(); } catch (Exception ex) { Logger.Error("Error setting up staging environment: ", ex.ToString()); throw ex; } instance.UnpackDroplet(); instance.PrepareStagingDirs(); instance.GetBuildpack(pmessage, this.gitPath, this.buildpacksDir); this.stagingTaskRegistry.ScheduleSnapshotStagingState(); try { Logger.Info("Staging task {0}: Running compilation script", pmessage.TaskID); instance.CreatePrison(); this.stagingTaskRegistry.ScheduleSnapshotStagingState(); instance.CompileProcess = instance.Buildpack.StartCompile(instance.Prison); instance.Lock.EnterWriteLock(); instance.Properties.Start = DateTime.Now; } finally { if(instance.Lock.IsWriteLockHeld) { instance.Lock.ExitWriteLock(); } } } catch (Exception ex) { instance.StagingException = ex; instance.Properties.Stopped = true; Logger.Error(ex.ToString()); } }