Method GetForceDownloadWorlds

libs/storage/storage.cpp:517–593

}

Storage::WorldStatus Storage::GetForceDownloadWorlds(std::vector<platform::CountryFile> & res) const
{
  CHECK_THREAD_CHECKER(m_threadChecker, ());

  bool hasWorld[] = {false, false};
  string const worldName[] = {WORLD_FILE_NAME, WORLD_COASTS_FILE_NAME};

  {
    // Check if Worlds already present.
    std::vector<platform::LocalCountryFile> localFiles;
    FindAllLocalMapsAndCleanup(m_currentVersion, m_dataDir, localFiles);
    for (auto const & f : localFiles)
    {
      for (int i = 0; i < 2; ++i)
        if (f.GetCountryName() == worldName[i])
          hasWorld[i] = true;
    }

    if (hasWorld[0] && hasWorld[1])
      return WorldStatus::READY;
  }

  Platform & pl = GetPlatform();

  // Parse root data folder (we stored Worlds here in older versions).
  // Note that m_dataDir maybe empty and we take Platform::WritableDir.
  std::vector<platform::LocalCountryFile> rootFiles;
  (void)FindAllLocalMapsInDirectoryAndCleanup(m_dataDir.empty() ? pl.WritableDir() : m_dataDir, 0 /* version */,
                                              -1 /* latestVersion */, rootFiles);

  bool anyWorldWasMoved = false;
  for (auto const & f : rootFiles)
  {
    for (int i = 0; i < 2; ++i)
    {
      if (f.GetCountryName() != worldName[i])
        continue;

      if (!hasWorld[i])
      {
        try
        {
          auto const filePath = f.GetPath(MapFileType::Map);
          uint32_t const version = version::ReadVersionDate(pl.GetReader(filePath, "f"));
          ASSERT(version > 0, ());

          auto const dirPath = base::JoinPath(f.GetDirectory(), std::to_string(version));
          if (pl.MkDirChecked(dirPath) &&
              base::RenameFileX(filePath, base::JoinPath(dirPath, worldName[i] + DATA_FILE_EXTENSION)))
          {
            anyWorldWasMoved = hasWorld[i] = true;
            break;
          }
          else
          {
            LOG(LERROR, ("Can't move", filePath, "into", dirPath));
            return WorldStatus::ERROR_MOVE_FILE;
          }