getConfig function

Implementation

Map<String, dynamic> getConfig({String? configFile}) {
  // if `flutter_native_splash.yaml` exists use it as config file, otherwise use `pubspec.yaml`
  String filePath;
  if (configFile != null) {
    if (File(configFile).existsSync()) {
      filePath = configFile;
    } else {
      print('The config file `$configFile` was not found.');
      exit(1);
    }
  } else if (File('flutter_native_splash.yaml').existsSync()) {
    filePath = 'flutter_native_splash.yaml';
  } else {
    filePath = 'pubspec.yaml';
  }

  final Map yamlMap = loadYaml(File(filePath).readAsStringSync());

  if (yamlMap['flutter_native_splash'] is! Map) {
    throw Exception('Your `$filePath` file does not contain a '
        '`flutter_native_splash` section.');
  }

  // yamlMap has the type YamlMap, which has several unwanted side effects
  final config = <String, dynamic>{};
  for (MapEntry<dynamic, dynamic> entry
      in yamlMap['flutter_native_splash'].entries) {
    if (entry.value is YamlList) {
      var list = <String>[];
      for (var value in (entry.value as YamlList)) {
        if (value is String) {
          list.add(value);
        }
      }
      config[entry.key] = list;
    } else {
      config[entry.key] = entry.value;
    }
  }
  return config;
}