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polymer/lib/transformer.dart

Index: polymer/lib/transformer.dart
diff --git a/polymer/lib/transformer.dart b/polymer/lib/transformer.dart
deleted file mode 100644
index 5e4f3da9ade27981e8e98b6990e7a6f1b739306d..0000000000000000000000000000000000000000
--- a/polymer/lib/transformer.dart
+++ /dev/null
@@ -1,205 +0,0 @@
-// 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.
-
-/// Transfomer used for pub-serve and pub-deploy.
-library polymer.transformer;
-
-import 'package:barback/barback.dart';
-import 'package:web_components/transformer.dart' as web_components;
-import 'package:observe/transformer.dart';
-
-import 'src/build/build_filter.dart';
-import 'src/build/common.dart';
-import 'src/build/index_page_builder.dart';
-import 'src/build/html_finalizer.dart';
-import 'src/build/linter.dart';
-import 'src/build/build_log_combiner.dart';
-import 'src/build/polyfill_injector.dart';
-import 'src/build/polymer_bootstrap.dart';
-
-/// The Polymer transformer, which internally runs several phases that will:
-///   * Extract inlined script tags into their separate files
-///   * Apply the observable transformer on every Dart script.
-///   * Inline imported html files
-///   * Combine scripts from multiple files into a single script tag
-///   * Inject extra polyfills needed to run on all browsers.
-///
-/// 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 PolymerTransformerGroup implements TransformerGroup {
-  final Iterable<Iterable> phases;
-
-  PolymerTransformerGroup(TransformOptions options)
-      : phases = createDeployPhases(options);
-
-  PolymerTransformerGroup.asPlugin(BarbackSettings settings)
-      : this(_parseSettings(settings));
-}
-
-TransformOptions _parseSettings(BarbackSettings settings) {
-  var args = settings.configuration;
-  bool releaseMode = settings.mode == BarbackMode.RELEASE;
-  bool jsOption = args['js'];
-  bool csp = args['csp'] == true; // defaults to false
-  bool injectBuildLogs =
-      !releaseMode && args['inject_build_logs_in_output'] != false;
-  bool injectWebComponentsJs = true;
-  if (args['inject_platform_js'] != null) {
-    print(
-        'Deprecated polymer transformer option `inject_platform_js`. This has '
-        'been renamed `inject_web_components_js` to match the new file name.');
-    injectWebComponentsJs = args['inject_platform_js'] != false;
-  }
-  if (args['inject_webcomponents_js'] != null) {
-    injectWebComponentsJs = args['inject_webcomponents_js'] != false;
-  }
-  return new TransformOptions(
-      entryPoints: readFileList(args['entry_points']),
-      inlineStylesheets: _readInlineStylesheets(args['inline_stylesheets']),
-      directlyIncludeJS: jsOption == null ? releaseMode : jsOption,
-      contentSecurityPolicy: csp,
-      releaseMode: releaseMode,
-      lint: _parseLintOption(args['lint']),
-      injectBuildLogsInOutput: injectBuildLogs,
-      injectWebComponentsJs: injectWebComponentsJs);
-}
-
-// Lint option can be empty (all files), false, true, or a map indicating
-// include/exclude files.
-_parseLintOption(value) {
-  var lint = null;
-  if (value == null || value == true) return new LintOptions();
-  if (value == false) return new LintOptions.disabled();
-  if (value is Map && value.length == 1) {
-    var key = value.keys.single;
-    var files = readFileList(value[key]);
-    if (key == 'include') {
-      return new LintOptions.include(files);
-    } else if (key == 'exclude') {
-      return new LintOptions.exclude(files);
-    }
-  }
-
-  // Any other case it is an error:
-  print('Invalid value for "lint" in the polymer transformer. '
-      'Expected one of the following: \n'
-      '    lint: true  # or\n'
-      '    lint: false # or\n'
-      '    lint: \n'
-      '      include: \n'
-      '        - file1 \n'
-      '        - file2 # or \n'
-      '    lint: \n'
-      '      exclude: \n'
-      '        - file1 \n'
-      '        - file2 \n');
-  return new LintOptions();
-}
-
-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('Invalid value for "entry_points" in the polymer transformer.');
-  }
-  return files;
-}
-
-Map<String, bool> _readInlineStylesheets(settingValue) {
-  if (settingValue == null) return null;
-  var inlineStylesheets = {};
-  bool error = false;
-  if (settingValue is Map) {
-    settingValue.forEach((key, value) {
-      if (value is! bool || key is! String) {
-        error = true;
-        return;
-      }
-      if (key == 'default') {
-        inlineStylesheets[key] = value;
-        return;
-      }
-
-      key = systemToAssetPath(key);
-      // Special case package urls, convert to AssetId and use serialized form.
-      var packageMatch = _PACKAGE_PATH_REGEX.matchAsPrefix(key);
-      if (packageMatch != null) {
-        var package = packageMatch[1];
-        var path = 'lib/${packageMatch[2]}';
-        key = new AssetId(package, path).toString();
-      }
-      inlineStylesheets[key] = value;
-    });
-  } else if (settingValue is bool) {
-    inlineStylesheets['default'] = settingValue;
-  } else {
-    error = true;
-  }
-  if (error) {
-    print('Invalid value for "inline_stylesheets" in the polymer transformer.');
-  }
-  return inlineStylesheets;
-}
-
-/// Create deploy phases for Polymer. Note that inlining HTML Imports
-/// comes first (other than linter, if [options.linter] is enabled), which
-/// allows the rest of the HTML-processing phases to operate only on HTML that
-/// is actually imported.
-List<List<Transformer>> createDeployPhases(TransformOptions options,
-    {String sdkDir}) {
-  // TODO(sigmund): this should be done differently. We should lint everything
-  // that is reachable and have the option to lint the rest (similar to how
-  // dart2js can analyze reachable code or entire libraries).
-  var phases = [];
-
-  phases.addAll([
-    /// Must happen first, temporarily rewrites <link rel="x-dart-test"> tags to
-    /// <script type="application/dart" _was_test></script> tags.
-    [new web_components.RewriteXDartTestToScript(options.entryPoints)],
-    [new web_components.ScriptCompactorTransformer(options.entryPoints)],
-    [new PolymerBootstrapTransformer(options)],
-  ]);
-
-  // Lint after injecting @HtmlImport imports otherwise we will likely have
-  // incorrect warnings about missing elements.
-  if (options.lint.enabled) phases.add([new Linter(options)]);
-
-  phases.addAll([
-    [
-      new web_components.ImportInlinerTransformer(
-          options.entryPoints, ['[[', '{{'])
-    ],
-    [new HtmlFinalizer(options)],
-    [
-      new ObservableTransformer(
-          releaseMode: options.releaseMode,
-          injectBuildLogsInOutput: options.injectBuildLogsInOutput)
-    ],
-    // TODO(jakemac): Move to web_components.
-    [new PolyfillInjector(options)],
-    [new BuildFilter(options)],
-    [new BuildLogCombiner(options)],
-  ]);
-  if (!options.releaseMode) {
-    phases.add([new IndexPageBuilder(options)]);
-  }
-  /// Must happen last, rewrites
-  /// <script type="application/dart" _was_test></script> tags back to
-  /// <link rel="x-dart-test"> tags.
-  phases.add(
-      [new web_components.RewriteScriptToXDartTest(options.entryPoints)]);
-  return phases;
-}
-
-final RegExp _PACKAGE_PATH_REGEX = new RegExp(r'packages\/([^\/]+)\/(.*)');