loadClayConfig function

Future<ClayConfig> loadClayConfig({ required String configPath, @visibleForTesting ClayConfig parseConfigMapForTesting(Map<String, dynamic> map)?, })

Loads and parses clay.yaml from configPath.

Implementation

Future<ClayConfig> loadClayConfig({
  required String configPath,
  @visibleForTesting
  ClayConfig Function(Map<String, dynamic> map)? parseConfigMapForTesting,
}) async {
  final file = File(configPath);
  if (!file.existsSync()) {
    throw ClayConfigException(
      'clay.yaml not found at $configPath',
    );
  }

  try {
    final raw = await file.readAsString();
    final parsed = loadYaml(raw);
    if (parsed is! Map) {
      throw ClayConfigException(
        'Invalid clay.yaml at $configPath: expected a YAML mapping',
      );
    }

    final map = Map<String, dynamic>.from(
      yamlToDart(parsed)! as Map,
    );
    final parse = parseConfigMapForTesting ?? parseConfigMap;
    return parse(map);
  } on YamlException catch (error) {
    throw ClayConfigException(
      'Invalid clay.yaml at $configPath: $error',
    );
  } on FormatException catch (error) {
    if (error.message.startsWith('ignore pattern must')) {
      throw ClayConfigException(
        'Invalid ignore patterns in clay.yaml at $configPath: '
        '${error.message}',
      );
    }
    if (error.message.startsWith('environment')) {
      throw ClayConfigException(
        'Invalid environment in clay.yaml at $configPath: ${error.message}',
      );
    }
    throw ClayConfigException(
      'Invalid clay.yaml at $configPath: $error',
    );
  } catch (error) {
    if (error is ClayConfigException) {
      rethrow;
    }
    final environmentMessage = _environmentErrorMessage(error);
    if (environmentMessage != null) {
      throw ClayConfigException(
        'Invalid environment in clay.yaml at $configPath: '
        '$environmentMessage',
      );
    }
    throw ClayConfigException(
      'Failed to parse clay.yaml at $configPath: $error',
    );
  }
}