Result TableMetadataUtil::CodecFromFileName()

in src/iceberg/table_metadata.cc [137:154]

• 15 lines of code
• 4 McCabe index (conditional complexity)

Result<MetadataFileCodecType> TableMetadataUtil::CodecFromFileName(
    std::string_view file_name) {
  if (file_name.find(".metadata.json") == std::string::npos) {
    return InvalidArgument("{} is not a valid metadata file", file_name);
  }

  // We have to be backward-compatible with .metadata.json.gz files
  if (file_name.ends_with(".metadata.json.gz")) {
    return MetadataFileCodecType::kGzip;
  }

  std::string_view file_name_without_suffix =
      file_name.substr(0, file_name.find_last_of(".metadata.json"));
  if (file_name_without_suffix.ends_with(".gz")) {
    return MetadataFileCodecType::kGzip;
  }
  return MetadataFileCodecType::kNone;
}