| Index: observatory_pub_packages/polymer/src/build/index_page_builder.dart
|
| ===================================================================
|
| --- observatory_pub_packages/polymer/src/build/index_page_builder.dart (revision 0)
|
| +++ observatory_pub_packages/polymer/src/build/index_page_builder.dart (working copy)
|
| @@ -0,0 +1,104 @@
|
| +// 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.
|
| +
|
| +/// Builds an index.html file in each folder containing entry points, if none
|
| +/// already exists. This file simply lists all the entry point files.
|
| +library polymer.src.build.index_page_builder;
|
| +
|
| +import 'dart:async';
|
| +import 'dart:math';
|
| +
|
| +import 'package:barback/barback.dart';
|
| +import 'package:path/path.dart' as path;
|
| +
|
| +import 'common.dart';
|
| +
|
| +/// Builds an index.html file in each folder containing entry points, if none
|
| +/// already exists. This file simply lists all the entry point files.
|
| +class IndexPageBuilder extends AggregateTransformer {
|
| + final TransformOptions options;
|
| +
|
| + IndexPageBuilder(this.options);
|
| +
|
| + classifyPrimary(AssetId id) {
|
| + if (!options.isHtmlEntryPoint(id)) return null;
|
| + // Group all entry points together.
|
| + return 'all_entry_points';
|
| + }
|
| +
|
| + Future apply(AggregateTransform transform) {
|
| + Map<String, List<String>> dirFilesMap = {};
|
| +
|
| + return transform.primaryInputs.toList().then((assets) {
|
| + // Add the asset to its directory, and make sure its directory is included
|
| + // in all its parents.
|
| + for (var asset in assets) {
|
| + var dir = path.url.dirname(asset.id.path);
|
| + while (dir != '.') {
|
| + dirFilesMap.putIfAbsent(dir, () => []);
|
| +
|
| + var relativePath = path.url.relative(asset.id.path, from: dir);
|
| + var relativeDir = path.url.dirname(relativePath);
|
| + dirFilesMap[dir].add(relativePath);
|
| + dir = path.url.dirname(dir);
|
| + }
|
| + }
|
| +
|
| + // Create an output index.html file for each directory, if one doesn't
|
| + // exist already
|
| + var futures = [];
|
| + dirFilesMap.forEach((directory, files) {
|
| + futures.add(_createOutput(directory, files, transform));
|
| + });
|
| + return Future.wait(futures);
|
| + });
|
| + }
|
| +
|
| + Future _createOutput(
|
| + String directory, List<String> files, AggregateTransform transform) {
|
| + var indexAsset = new AssetId(
|
| + transform.package, path.join(directory, 'index.html'));
|
| +
|
| + return transform.hasInput(indexAsset).then((exists) {
|
| + // Don't overwrite existing outputs!
|
| + if (exists) return;
|
| +
|
| + // Sort alphabetically by recursive path parts.
|
| + files.sort((String a, String b) {
|
| + var aParts = path.split(a);
|
| + var bParts = path.split(b);
|
| + int diff = 0;
|
| + int minLength = min(aParts.length, bParts.length);
|
| + for (int i = 0; i < minLength; i++) {
|
| + // Directories are sorted below files.
|
| + var aIsDir = i < aParts.length - 1;
|
| + var bIsDir = i < bParts.length - 1;
|
| + if (aIsDir && !bIsDir) return 1;
|
| + if (!aIsDir && bIsDir) return -1;
|
| +
|
| + // Raw string comparison, if not identical we return.
|
| + diff = aParts[i].compareTo(bParts[i]);
|
| + if (diff != 0) return diff;
|
| + }
|
| + // Identical files, shouldn't happen in practice.
|
| + return 0;
|
| + });
|
| +
|
| + // Create the document with a list.
|
| + var doc = new StringBuffer(
|
| + '<!DOCTYPE html><html><body><h1>Entry points</h1><ul>');
|
| +
|
| + // Add all the assets to the list.
|
| + for (var file in files) {
|
| + doc.write('<li><a href="$file">$file</a></li>');
|
| + };
|
| +
|
| + doc.write('</ul></body></html>');
|
| +
|
| + // Output the index.html file
|
| + transform.addOutput(new Asset.fromString(indexAsset , doc.toString()));
|
| + });
|
| + }
|
| +
|
| +}
|
|
|
Chromium Code Reviews
Issue 816693004:
Add observatory_pub_packages snapshot to third_party (Closed)
Base URL: http://dart.googlecode.com/svn/third_party/