Collapse successful GET messages together.

lib/src/command/serve.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 pub.command.serve;
 
 import 'dart:async';
 import 'dart:math' as math;
 
 import 'package:barback/barback.dart';
@@ skipping 130 matching lines @@
   Future _startServer(AssetEnvironment environment, String rootDirectory,
       int directoryLength) async {
     var server = await environment.serveDirectory(rootDirectory);
     // In release mode, strip out .dart files since all relevant ones have
     // been compiled to JavaScript already.
     if (mode == BarbackMode.RELEASE) {
       server.allowAsset = (url) => !url.path.endsWith(".dart");
     }
 
     // Add two characters to account for "[" and "]".
-    var prefix = log.gray(
+    var directory = log.gray(
         padRight("[${server.rootDirectory}]", directoryLength + 2));
 
     server.results.listen((result) {
-      var buffer = new StringBuffer();
-      buffer.write("$prefix ");
-
       if (result.isSuccess) {
-        buffer.write(
-            "${log.green('GET')} ${result.url.path} $_arrow ${result.id}");
+        var prefix = "$directory ${log.green('GET')}";
+        log.collapsible("$prefix ${result.url.path} $_arrow ${result.id}",
+            "$prefix Served ## assets.");
       } else {
-        buffer.write("${log.red('GET')} ${result.url.path} $_arrow");
+        var buffer = new StringBuffer();
+        buffer.write("$directory ${log.red('GET')} ${result.url.path} $_arrow");
 
         var error = result.error.toString();
         if (error.contains("\n")) {
           buffer.write("\n${prefixLines(error)}");
         } else {
           buffer.write(" $error");
         }
+
+        log.error(buffer);
       }
-
-      log.message(buffer);
     }, onError: _fatalError);
 
     log.message("Serving ${entrypoint.root.name} "
         "${padRight(server.rootDirectory, directoryLength)} "
         "on ${log.bold('http://$hostname:${server.port}')}");
   }
 
   /// Reports [error] and exits the server.
   void _fatalError(error, [stackTrace]) {
     if (_completer.isCompleted) return;
     _completer.completeError(error, stackTrace);
   }
 }