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Issue 573863003:
simple index.html files for folders that contain entry points (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart| Index: pkg/polymer/lib/src/build/index_page_builder.dart |
| diff --git a/pkg/polymer/lib/src/build/index_page_builder.dart b/pkg/polymer/lib/src/build/index_page_builder.dart |
| new file mode 100644 |
| index 0000000000000000000000000000000000000000..829932f5aed1671e78ffc8caa9843d841a8481ee |
| --- /dev/null |
| +++ b/pkg/polymer/lib/src/build/index_page_builder.dart |
| @@ -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 'package:barback/barback.dart'; |
| +import 'package:html5lib/dom.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 ''; |
|
Siggi Cherem (dart-lang)
2014/09/16 19:40:50
nit: it might feel less magical to use a non-empty
jakemac
2014/09/16 21:17:05
Changed to 'all_entry_points'
On 2014/09/16 19:40
|
| + } |
| + |
| + 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); |
| + if (relativeDir == '.') { |
| + // Current directory for the file, add the full path. |
| + dirFilesMap[dir].add(relativePath); |
| + } else if (!dirFilesMap[dir].contains(relativeDir)) { |
| + // Subdirectory, just add the relative directory path. |
| + dirFilesMap[dir].add('$relativeDir/'); |
| + } |
| + |
| + dir = path.url.dirname(dir); |
| + } |
| + } |
| + |
| + // Create an output index.html file for each directory, if one doesn't |
| + // exist already |
| + var futures = []; |
| + dirFilesMap.forEach((directory, files) { |
| + futures.add(_createOutput(directory, files, transform)); |
| + }); |
| + return Future.wait(futures); |
| + }); |
| + } |
| + |
| + Future _createOutput( |
| + String directory, List<String> files, AggregateTransform transform) { |
| + var indexAsset = new AssetId( |
| + transform.package, path.join(directory, 'index.html')); |
| + |
| + return transform.hasInput(indexAsset).then((exists) { |
| + // Don't overwrite existing outputs! |
| + if (exists) return; |
| + |
| + // The order of [transform.primaryInputs] is not guaranteed |
| + // to be stable across multiple runs of the transformer. |
| + // Therefore, alphabetically sort the files by path, putting directories |
| + // last. |
| + files.sort((String a, String b) { |
| + var aIsDir = path.url.extension(a) == ''; |
| + var bIsDir = path.url.extension(b) == ''; |
| + if (aIsDir && !bIsDir) { |
| + return -1; |
| + } else if (!aIsDir && bIsDir) { |
| + return 1; |
| + } |
| + return a.compareTo(b); |
| + }); |
| + |
| + // Create the document with a list node. |
| + var doc = new Document.html('<!DOCTYPE html><html><body>' |
|
Siggi Cherem (dart-lang)
2014/09/16 19:40:50
change to just use StringBuffer? It seems there is
jakemac
2014/09/16 21:17:04
Done.
|
| + '<h1>Entry points</h1><ul></ul></body></html>'); |
|
Siggi Cherem (dart-lang)
2014/09/16 19:40:50
should we have a different title or divide the lis
jakemac
2014/09/16 21:17:05
Flattened, I think that is the easiest approach an
|
| + var list = doc.body.querySelector('ul'); |
| + |
| + // Add all the assets to the list node. |
| + list.children.addAll(files.map((file) { |
| + return new Element.html('<li><a href="$file">$file</a></li>'); |
| + })); |
| + |
| + // Output the index.html file |
| + transform.addOutput(new Asset.fromString(indexAsset , doc.outerHtml)); |
| + }); |
| + } |
| + |
| +} |
