| // Copyright 2020 The Dart Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| import 'package:path/path.dart' as p; |
| |
| import '../../dwds.dart'; |
| import 'require.dart'; |
| |
| /// Provides a [RequireStrategy] suitable for use with Frontend Server. |
| class FrontendServerRequireStrategyProvider { |
| final ReloadConfiguration _configuration; |
| final AssetReader _assetReader; |
| final Future<Map<String, String>> Function() _digestsProvider; |
| |
| RequireStrategy _requireStrategy; |
| |
| FrontendServerRequireStrategyProvider( |
| this._configuration, this._assetReader, this._digestsProvider); |
| |
| RequireStrategy get strategy => _requireStrategy ??= RequireStrategy( |
| _configuration, |
| _moduleProvider, |
| (_) => _digestsProvider(), |
| _moduleForServerPath, |
| _serverPathForModule, |
| _sourceMapPathForModule, |
| _serverPathForAppUri, |
| _moduleInfoForProvider, |
| _assetReader, |
| ); |
| |
| Future<Map<String, String>> _moduleProvider( |
| MetadataProvider metadataProvider) async => |
| (await metadataProvider.moduleToModulePath).map((key, value) => |
| MapEntry(key, relativizePath(removeJsExtension(value)))); |
| |
| Future<String> _moduleForServerPath( |
| MetadataProvider metadataProvider, String serverPath) async => |
| (await metadataProvider.modulePathToModule)[serverPath]; |
| |
| Future<String> _serverPathForModule( |
| MetadataProvider metadataProvider, String module) async => |
| (await metadataProvider.moduleToModulePath)[module] ?? ''; |
| |
| Future<String> _sourceMapPathForModule( |
| MetadataProvider metadataProvider, String module) async { |
| var path = (await metadataProvider.moduleToSourceMap)[module] ?? ''; |
| return relativizePath(path); |
| } |
| |
| String _serverPathForAppUri(String appUri) { |
| if (appUri.startsWith('org-dartlang-app:')) { |
| return Uri.parse(appUri).path.substring(1); |
| } |
| return null; |
| } |
| |
| Future<Map<String, ModuleInfo>> _moduleInfoForProvider( |
| MetadataProvider metadataProvider) async { |
| var modules = await metadataProvider.moduleToModulePath; |
| var result = <String, ModuleInfo>{}; |
| for (var module in modules.keys) { |
| var modulePath = modules[module]; |
| result[module] = ModuleInfo( |
| // TODO: Save locations of full kernel files in ddc metadata. |
| // Issue: https://github.com/dart-lang/sdk/issues/43684 |
| p.setExtension(modulePath, '.full.dill'), |
| p.setExtension(modulePath, '.dill')); |
| } |
| return result; |
| } |
| } |