Function loadSingleConfigFile

src/utils/cli-config.ts:63–94

(filePath: string, required: boolean)

}

function loadSingleConfigFile(filePath: string, required: boolean): Partial<CliFlags> {
  if (!fs.existsSync(filePath)) {
    if (required) {
      throw new AppError('INVALID_ARGS', `Config file not found: ${filePath}`);
    }
    return {};
  }

  let raw: string;
  try {
    raw = fs.readFileSync(filePath, 'utf8');
  } catch (error) {
    throw new AppError('INVALID_ARGS', `Failed to read config file: ${filePath}`, {
      cause: error instanceof Error ? error.message : String(error),
    });
  }

  let parsed: unknown;
  try {
    parsed = JSON.parse(raw);
  } catch (error) {
    throw new AppError('INVALID_ARGS', `Invalid JSON in config file: ${filePath}`, {
      cause: error instanceof Error ? error.message : String(error),
    });
  }

  if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) {
    throw new AppError('INVALID_ARGS', `Config file must contain a JSON object: ${filePath}`);
  }

  return parseConfigObject(parsed as Record<string, unknown>, `config file ${filePath}`);
}

function parseConfigObject(
  source: Record<string, unknown>,