Wait for all log entries to be printed before exiting "pub build".

pkg/barback/lib/src/package_graph.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library barback.package_graph;
 
 import 'dart:async';
 
 import 'asset_cascade.dart';
 import 'asset_id.dart';
@@ skipping 40 matching lines @@
   /// This emits errors as they're detected. If an error occurs in one part of
   /// the graph, unrelated parts will continue building.
   ///
   /// This will not emit programming errors from barback itself. Those will be
   /// emitted through the [results] stream's error channel.
   Stream<BarbackException> get errors => _errors;
   Stream<BarbackException> _errors;
 
   /// The stream of [LogEntry] objects used to report transformer log entries.
   Stream<LogEntry> get log => _logController.stream;
-  final _logController = new StreamController<LogEntry>.broadcast();
+  final _logController = new StreamController<LogEntry>.broadcast(sync: true);

[Bob Nystrom, 2014/01/29 20:56:46]

Don't forget to bump the barback version.

[nweiz, 2014/01/29 21:26:55]

Done.

 
   /// The most recent error emitted from a cascade's result stream.
   ///
   /// This is used to pipe an unexpected error from a build to the resulting
   /// [Future] returned by [getAllAssets].
   var _lastUnexpectedError;
 
   /// The stack trace for [_lastUnexpectedError].
   StackTrace _lastUnexpectedErrorTrace;
 
@@ skipping 113 matching lines @@
       if (cascade == null) throw new ArgumentError("Unknown package $package.");
       cascade.removeSources(ids);
     });
   }
 
   void updateTransformers(String package,
       Iterable<Iterable<Transformer>> transformers) {
     _cascades[package].updateTransformers(transformers);
   }
 }