Removing polymer-specific code from barback runner

pkg/polymer/lib/builder.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.
 
 /**
  * Common logic to make it easy to run the polymer linter and deploy tool.
  *
  * The functions in this library are designed to make it easier to create
  * `build.dart` files. A `build.dart` file is a Dart script that can be invoked
  * from the command line, but that can also invoked automatically by the Dart
@@ skipping 173 matching lines @@
     options = parseOptions([]);
   }
   if (currentPackage == null) currentPackage = readCurrentPackageFromPubspec();
 
   var transformOptions = new TransformOptions(
       entryPoints: entryPoints,
       directlyIncludeJS: options.directlyIncludeJS,
       contentSecurityPolicy: options.contentSecurityPolicy,
       releaseMode: options.releaseMode);
 
+  var phases = new PolymerTransformerGroup(transformOptions).phases;
   var barbackOptions = new BarbackOptions(
-      new PolymerTransformerGroup(transformOptions).phases,
-      options.outDir, currentPackage: currentPackage,
-      packageDirs: packageDirs, machineFormat: options.machineFormat);
+      phases, options.outDir, currentPackage: currentPackage,
+      packageDirs: packageDirs, machineFormat: options.machineFormat,
+      packagePhases: {'polymer' : phases});

[Siggi Cherem (dart-lang), 2014/02/11 23:15:20]

actually, for polymer we only need to apply the observe transformer on a single
file. Could we specify that instead?

In other words, we want something that matches this part of polymer's pubspec:

transformers:
- observe:
    files: lib/src/instance.dart

[blois, 2014/02/12 02:39:27]

Updated builder & deploy to cover this.

[Siggi Cherem (dart-lang), 2014/02/12 03:05:28]

awesome, thanks!

   return runBarback(barbackOptions)
       .then((_) => print('Done! All files written to "${options.outDir}"'));
 }
 
 
 /**
  * Options that may be used either in build.dart or by the linter and deploy
  * tools.
  */
 class CommandLineOptions {
@@ skipping 116 matching lines @@
   }
   if (res['help']) {
     print('A build script that invokes the polymer linter and deploy tools.');
     showUsage();
     exit(0);
   }
   return new CommandLineOptions(res['changed'], res['removed'], res['clean'],
       res['full'], res['machine'], res['deploy'], res['out'], res['js'],
       res['csp'], !res['debug']);
 }