blob: 2803eead072a909c9a1cce9bd5e140898b16275c [file] [log] [blame]
// 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.');
}
}