Method GetPrimaryFilePath

view/sharedcache/core/SharedCacheView.cpp:976–1033

}

std::optional<std::string> SharedCacheView::GetPrimaryFilePath()
{
	auto viewFile = GetFile();
	// 1. Try and get the primary file path using `GetOriginalFilename`.
	auto primaryFilePath = viewFile->GetOriginalFilename();

	// 2. If the original file name is not a usable file path then prompt the user to select one.
	if (primaryFilePath.empty() || !std::filesystem::exists(primaryFilePath))
	{
		if (!GetOpenFileNameInput(primaryFilePath, "Please select the primary shared cache file"))
			return std::nullopt;
		SetPrimaryFileName(BaseFileName(primaryFilePath));
		// Update so next load we don't need to prompt the user.
		viewFile->SetOriginalFilename(primaryFilePath);
	}

	// 3. If we are not in a project, we can go ahead and return the file path, it does not need to be resolved from project.
	auto primaryProjectFile = viewFile->GetProjectFile();
	if (!primaryProjectFile)
		return primaryFilePath;

	auto project = primaryProjectFile->GetProject();
	auto primaryProjectFileName = primaryProjectFile->GetName();
	auto primaryProjectFilePath = primaryProjectFile->GetPathOnDisk();

	// 4. If we are not a BNDB project file than we can return the path on disk as we are the primary file.
	if (primaryProjectFileName.find(".bndb") == std::string::npos)
	{
		// Set the primary file name to the project file name so on subsequent loads we can pick it up.
		SetPrimaryFileName(primaryProjectFileName);
		return primaryProjectFilePath;
	}

	// 5. If we are a BNDB project file the path must be resolved from the file name.
	auto primaryProjectFileFolder = primaryProjectFile->GetFolder();
	for (const auto& pj : project->GetFiles())
	{
		// Skip files not in the same folder.
		if (!IsSameFolder(pj->GetFolder(), primaryProjectFileFolder))
			continue;
		// We are looking for the file with file name we stored in metadata.
		if (pj->GetName() != m_primaryFileName)
			continue;
		return pj->GetPathOnDisk();
	}

	// 6. If we fail to resolve the project file given the `m_primaryFileName` than we fall back to asking the user.
	std::string newPrimaryFilePath;
	if (!GetOpenFileNameInput(newPrimaryFilePath, "Please select the primary shared cache file"))
		return std::nullopt;

	// TODO: We likely want to verify that the project file exists in the same directory as the BNDB.
	// TODO: We currently require the database to exist in the same directory as the files.
	// Update the primary file name for later loads, otherwise we would keep prompting to select a file.
	primaryProjectFile = project->GetFileByPathOnDisk(newPrimaryFilePath);
	SetPrimaryFileName(primaryProjectFile->GetName());
	return newPrimaryFilePath;
}