Method toSplitPlatformPath

src/Common/PlatformFileSystem.cpp:97–142

}

std::pair<std::filesystem::path, std::filesystem::path>
PlatformFileSystem::toSplitPlatformPath(PathId id) {
  std::filesystem::path path = toPath(id);
  const std::string pathstr = path.string();
  filepath_to_working_directories_cache_t::const_iterator it =
      m_filepathToWorkingDirectoriesCache.find(pathstr);
  if (it != m_filepathToWorkingDirectoriesCache.end()) {
    std::filesystem::path suffix = path.lexically_relative(it->second);
    return std::make_pair(it->second, suffix);
  }

  int32_t minUpDirs = std::numeric_limits<int32_t>::max();
  std::filesystem::path bestPrefix;
  std::filesystem::path bestSuffix;

  for (const Configuration &configuration : m_configurations) {
    const std::filesystem::path &prefix = configuration.m_sourceDir;
    if (prefix == path) {
      bestPrefix = path;
      bestSuffix = ".";
      minUpDirs = 0;
      break;
    } else if (prefix.root_path() == path.root_path()) {
      std::filesystem::path suffix = path.lexically_relative(prefix);

      int32_t upDirs = 0;
      for (const auto &part : suffix) {
        if (part == "..")
          ++upDirs;
        else
          break;
      }

      if (upDirs < minUpDirs) {
        minUpDirs = upDirs;
        bestPrefix = prefix;
        bestSuffix = suffix;
        if (minUpDirs == 0) break;
      }
    }
  }

  return (minUpDirs == std::numeric_limits<int32_t>::max())
             ? std::make_pair("", path)
             : std::make_pair(bestPrefix, bestSuffix);
}

std::filesystem::path PlatformFileSystem::toPlatformRelPath(PathId id) {
  return toSplitPlatformPath(id).second;