// Copyright 2014 The Flutter Authors. 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:meta/meta.dart'; import 'package:yaml/yaml.dart'; import '../base/common.dart'; import '../base/file_system.dart'; import '../build_system/build_system.dart'; import '../build_system/targets/localizations.dart'; Future<void> generateLocalizationsSyntheticPackage({ @required Environment environment, @required BuildSystem buildSystem, }) async { assert(environment != null); assert(buildSystem != null); final FileSystem fileSystem = environment.fileSystem; final File l10nYamlFile = fileSystem.file( fileSystem.path.join(environment.projectDir.path, 'l10n.yaml')); // If pubspec.yaml has generate:true and if l10n.yaml exists in the // root project directory, check to see if a synthetic package should // be generated for gen_l10n. if (!l10nYamlFile.existsSync()) { return; } final YamlNode yamlNode = loadYamlNode(l10nYamlFile.readAsStringSync()); if (yamlNode.value != null && yamlNode is! YamlMap) { throwToolExit( 'Expected ${l10nYamlFile.path} to contain a map, instead was $yamlNode' ); } BuildResult result; // If an l10n.yaml file exists but is empty, attempt to build synthetic // package with default settings. if (yamlNode.value == null) { result = await buildSystem.build( const GenerateLocalizationsTarget(), environment, ); } else { final YamlMap yamlMap = yamlNode as YamlMap; final Object value = yamlMap['synthetic-package']; if (value is! bool && value != null) { throwToolExit( 'Expected "synthetic-package" to have a bool value, ' 'instead was "$value"' ); } // Generate gen_l10n synthetic package only if synthetic-package: true or // synthetic-package is null. final bool isSyntheticL10nPackage = value as bool ?? true; if (!isSyntheticL10nPackage) { return; } } result = await buildSystem.build( const GenerateLocalizationsTarget(), environment, ); if (result == null || result.hasException) { throwToolExit('Generating synthetic localizations package has failed.'); } }