Function SaveCountriesToWritableDirAtomic

libs/storage/storage.cpp:128–157

namespace
{
bool SaveCountriesToWritableDirAtomic(std::string const & buffer)
{
  auto & pl = GetPlatform();
  std::string const finalPath = base::JoinPath(pl.WritableDir(), COUNTRIES_FILE);
  std::string const tmpPath = finalPath + EXTENSION_TMP;

  try
  {
    FileWriter w(tmpPath);
    w.Write(buffer.data(), buffer.size());
  }
  catch (...)
  {
    LOG(LWARNING, ("COUNTRIES: write tmp failed:", tmpPath));
    pl.RemoveFileIfExists(tmpPath);
    return false;
  }

  pl.RemoveFileIfExists(finalPath);
  if (!base::RenameFileX(tmpPath, finalPath))
  {
    LOG(LWARNING, ("COUNTRIES: rename failed:", tmpPath, "->", finalPath));
    pl.RemoveFileIfExists(tmpPath);
    return false;
  }

  pl.DisableBackupForFile(finalPath);
  LOG(LINFO, ("COUNTRIES: saved to:", finalPath));
  return true;
}
}  // namespace

void Storage::ApplyCountriesInMemory(std::string const & buffer)