Function readRemoteConfigFile

src/remote/remote-config-core.ts:15–71

(options: RemoteConfigProfileOptions)

import { parseSourceValue } from '../utils/source-value.ts';

function readRemoteConfigFile(options: RemoteConfigProfileOptions): ResolvedRemoteConfigProfile {
  const env = options.env ?? process.env;
  const resolvedPath = resolveRemoteConfigPath(options);
  if (!fs.existsSync(resolvedPath)) {
    throw new AppError('INVALID_ARGS', `Remote config file not found: ${resolvedPath}`);
  }

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

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

  const profile: RemoteConfigProfile = {};
  const source = parsed as Record<string, unknown>;
  const configDir = path.dirname(resolvedPath);
  for (const [rawKey, rawValue] of Object.entries(source)) {
    const spec = getRemoteConfigFieldSpec(rawKey as keyof RemoteConfigProfile);
    if (!spec) {
      throw new AppError(
        'INVALID_ARGS',
        `Unsupported remote config key "${rawKey}" in remote config file ${resolvedPath}.`,
      );
    }
    const parsedValue = parseSourceValue(
      spec,
      rawValue,
      `remote config file ${resolvedPath}`,
      rawKey,
    );
    (profile as Record<string, unknown>)[spec.key] =
      typeof parsedValue === 'string' && 'path' in spec && spec.path
        ? resolveUserPath(parsedValue, { cwd: configDir, env })
        : parsedValue;
  }

  return { resolvedPath, profile };
}