Roll Observatory packages and add a roll script

web_components/lib/transformer.dart

Index: web_components/lib/transformer.dart
diff --git a/web_components/lib/transformer.dart b/web_components/lib/transformer.dart
deleted file mode 100644
index fe0ca34a7c73f2a5f4de2bf7089fada5a1c37cfd..0000000000000000000000000000000000000000
--- a/web_components/lib/transformer.dart
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright (c) 2015, 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.
-
-/// Transformer used for pub serve and pub build
-library web_components.transformer;
-
-import 'package:barback/barback.dart';
-
-export 'build/html_import_annotation_recorder.dart';
-import 'build/import_inliner.dart';
-export 'build/import_inliner.dart';
-import 'build/script_compactor.dart';
-export 'build/script_compactor.dart';
-import 'build/test_compatibility.dart';
-export 'build/test_compatibility.dart';
-import 'build/web_components.dart';
-export 'build/web_components.dart';
-
-/// The Web Components transformer group, which internally runs several phases
-/// that:
-///   * Extract inlined script tags into separate files.
-///   * Extract script tags from entry points and all html imports and add them
-///     as dart imports in a new *.bootstrap.dart file.
-///   * Run the `initialize` transformer.
-///   * Inlines @HtmlImport annotations as html imports into the entry point.
-///   * Inline imported html files and remove all but the main dart script tag.
-///
-/// At the end of these phases, this tranformer produces a single entrypoint
-/// HTML file with a single Dart script that can later be compiled with dart2js.
-class WebComponentsTransformerGroup implements TransformerGroup {
-  final Iterable<Iterable> phases;
-
-  WebComponentsTransformerGroup(TransformOptions options)
-      : phases = createDeployPhases(options);
-
-  WebComponentsTransformerGroup.asPlugin(BarbackSettings settings)
-      : this(_parseSettings(settings));
-}
-
-/// Create deploy phases for web_components.
-List<List<Transformer>> createDeployPhases(TransformOptions options,
-    {String sdkDir}) {
-  var phases = [];
-
-  /// Must happen first, temporarily rewrites <link rel="x-dart-test"> tags to
-  /// <script type="application/dart" _was_test></script> tags.
-  phases.add([new RewriteXDartTestToScript(options.entryPoints)]);
-
-  // Must happen before the WebComponents transformer, grabs all dart scripts
-  // and combines them into one bootstrap file.
-  phases.add([new ScriptCompactorTransformer(options.entryPoints)]);
-
-  // Runs the customized version of the `initialize` transformer and inlines
-  // @HtmlImport annotations.
-  phases.add([new WebComponentsTransformer(options)]);
-
-  // Inlines all html imports and removes all dart script tags in the process.
-  phases.add([new ImportInlinerTransformer(options.entryPoints)]);
-
-  /// Must happen last, rewrites
-  /// <script type="application/dart" _was_test></script> tags to
-  /// <link rel="x-dart-test"> tags.
-  phases.add([new RewriteScriptToXDartTest(options.entryPoints)]);
-  return phases;
-}
-
-/// Options used by web_components transformers
-class TransformOptions {
-  /// List of entrypoints paths. The paths are relative to the package root and
-  /// are represented using posix style, which matches the representation used
-  /// in asset ids in barback. If null, any html file under 'web/' or 'test/' is
-  /// considered an entry point.
-  final List<String> entryPoints;
-
-  /// Current Barback mode.
-  final bool releaseMode;
-
-  TransformOptions(this.entryPoints, this.releaseMode);
-
-  /// Whether an asset with [id] is an entry point HTML file.
-  bool isHtmlEntryPoint(AssetId id) {
-    if (id.extension != '.html') return false;
-
-    // Note: [id.path] is a relative path from the root of a package.
-    if (entryPoints == null) {
-      return id.path.startsWith('web/') || id.path.startsWith('test/');
-    }
-
-    return entryPoints.contains(id.path);
-  }
-}
-
-// Builds TransformOptions given some BarbackSettings
-TransformOptions _parseSettings(BarbackSettings settings) {
-  var args = settings.configuration;
-  bool releaseMode = settings.mode == BarbackMode.RELEASE;
-  var entryPoints = readFileList(args['entry_points']);
-  return new TransformOptions(entryPoints, releaseMode);
-}
-
-/// Reads a file list value from the [BarbackSettings]
-/// TODO(jakemac): This should also move to code_transformers.
-readFileList(value) {
-  if (value == null) return null;
-  var files = [];
-  bool error;
-  if (value is List) {
-    files = value;
-    error = value.any((e) => e is! String);
-  } else if (value is String) {
-    files = [value];
-    error = false;
-  } else {
-    error = true;
-  }
-  if (error) {
-    print('Bad value for "entry_points" in the web_components transformer. '
-        'Expected either one String or a list of Strings.');
-  }
-  return files;
-}