Use the dart:async Stream API thoroughly in Pub.

utils/pub/command_lish.dart

 // Copyright (c) 2012, 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 command_lish;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:json';
 import 'dart:uri';
@@ skipping 73 matching lines @@
       }
     });
   }
 
   Future onRun() {
     var files;
     var packageBytesFuture = _filesToPublish.then((f) {
       files = f;
       log.fine('Archiving and publishing ${entrypoint.root}.');
       return createTarGz(files, baseDir: entrypoint.root.dir);
-    }).then(consumeInputStream);
+    }).then((stream) => stream.toBytes());
 
     // Show the package contents so the user can verify they look OK.
     var package = entrypoint.root;
     log.message(
         'Publishing "${package.name}" ${package.version}:\n'
         '${generateTree(files)}');
 
       // Validate the package.
     return _validate(packageBytesFuture.then((bytes) => bytes.length))
         .then((_) => packageBytesFuture).then(_publish);
@@ skipping 73 matching lines @@
         var s = warnings.length == 1 ? '' : 's';
         message = "Package has ${warnings.length} warning$s. Upload anyway";
       }
 
       return confirm(message).then((confirmed) {
         if (!confirmed) throw "Package upload canceled.";
       });
     });
   }
 }