| // Copyright (c) 2022, 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. |
| |
| import 'package:build/build.dart'; |
| |
| /// Factory for the build script. |
| Builder copyBuilder(_) => _CopyBuilder(); |
| |
| class _CopyBuilder extends Builder { |
| @override |
| Map<String, List<String>> get buildExtensions => { |
| "web/{{}}.dart.js": ["compiled/{{}}.dart.js"], |
| "web/static_assets/{{}}.png": ["compiled/static_assets/{{}}.png"], |
| "web/static_assets/{{}}.html": ["compiled/static_assets/{{}}.html"], |
| "web/static_assets/{{}}.css": ["compiled/static_assets/{{}}.css"], |
| "web/manifest.json": ["compiled/manifest.json"], |
| }; |
| |
| @override |
| Future<void> build(BuildStep buildStep) async { |
| final inputAsset = buildStep.inputId; |
| final allowedOutputs = buildStep.allowedOutputs; |
| |
| if (allowedOutputs.length != 1) { |
| return; |
| } |
| |
| final outputAsset = allowedOutputs.first; |
| await _copyBinaryFile( |
| buildStep, |
| inputAsset: inputAsset, |
| outputAsset: outputAsset, |
| ); |
| } |
| |
| Future<void> _copyBinaryFile( |
| BuildStep buildStep, { |
| required AssetId inputAsset, |
| required AssetId outputAsset, |
| }) { |
| return buildStep.writeAsBytes( |
| outputAsset, |
| buildStep.readAsBytes(inputAsset), |
| ); |
| } |
| } |