inspect method

NativeBinaryInfo inspect(File file, { required NativeTarget target, required String canonicalName, })

Inspects a file and returns validation results.

Throws BinaryFormatException if the file does not match the expected format, or BinaryArchitectureException if the architecture is wrong.

Implementation

NativeBinaryInfo inspect(
  File file, {
  required NativeTarget target,
  required String canonicalName,
}) {
  if (!file.existsSync()) {
    throw BinaryFormatException('File not found: ${file.path}');
  }

  final raf = file.openSync();
  List<int> header;
  try {
    header = raf.readSync(32);
  } finally {
    raf.closeSync();
  }

  if (header.isEmpty) {
    throw BinaryFormatException('Empty file: ${file.path}');
  }

  final format = _detectFormat(canonicalName, header);

  if (validateArchitecture && format != _BinaryFormat.staticArchive) {
    _validateArchitecture(header, format, target, file.path);
  }

  return NativeBinaryInfo(
    path: file.path,
    format: format,
    sizeBytes: file.lengthSync(),
  );
}