loadConfigFile function

Implementation

Map<String, dynamic> loadConfigFile(String path, String? fileOptionResult) {
  final File file = File(path);
  final String yamlString = file.readAsStringSync();
  // ignore: always_specify_types
  final Map yamlMap = loadYaml(yamlString);

  if (!(yamlMap['flutter_icons'] is Map)) {
    stderr.writeln(NoConfigFoundException('Check that your config file '
        '`${fileOptionResult ?? defaultConfigFile}`'
        ' has a `flutter_icons` section'));
    exit(1);
  }

  // yamlMap has the type YamlMap, which has several unwanted side effects
  final Map<String, dynamic> config = <String, dynamic>{};
  for (MapEntry<dynamic, dynamic> entry in yamlMap['flutter_icons'].entries) {
    config[entry.key] = entry.value;
  }

  return config;
}