Little C++ utility to searching upward until finding a "assets" subdirectory. Useful during development when I don't want to copy the assets to build directory every time.

locate_asset_path.cpp

auto locate_asset_path(const std::filesystem::path& current_path)
    -> std::optional<std::filesystem::path>
{
  namespace fs = std::filesystem;

  std::optional<fs::path> result = std::nullopt;
  for (auto path = current_path; path != current_path.root_path();
       path = path.parent_path()) {
    const auto assets_path = path / "assets";
    if (exists(assets_path) && is_directory(assets_path)) {
      result = assets_path;
    }
  }

  return result.has_value() ? std::optional{absolute(*result)} : std::nullopt;
}