Method CreateDirectoryPath

common/FileSystem.cpp:1809–1916

}

bool FileSystem::CreateDirectoryPath(const char* Path, bool Recursive, Error* error)
{
	const std::wstring wpath = GetWin32Path(Path);

	// has a path
	if (wpath.empty()) [[unlikely]]
	{
		Error::SetStringView(error, "Path is empty.");
		return false;
	}

	// try just flat-out, might work if there's no other segments that have to be made
	if (CreateDirectoryW(wpath.c_str(), nullptr))
		return true;

	// check error
	DWORD lastError = GetLastError();
	if (lastError == ERROR_ALREADY_EXISTS)
	{
		// check the attributes
		const u32 Attributes = GetFileAttributesW(wpath.c_str());
		if (Attributes != INVALID_FILE_ATTRIBUTES && Attributes & FILE_ATTRIBUTE_DIRECTORY)
			return true;
	}

	if (!Recursive)
	{
		Error::SetWin32(error, "CreateDirectoryW() failed: ", lastError);
		return false;
	}

	// check error
	if (lastError == ERROR_PATH_NOT_FOUND)
	{
		// part of the path does not exist, so we'll create the parent folders, then
		// the full path again.
		const size_t pathLength = wpath.size();
		std::wstring tempPath;
		tempPath.reserve(pathLength);

		// for absolute paths, we need to skip over the path root
		size_t rootLength = 0;
		if (Path::IsAbsolute(Path))
		{
			const wchar_t* root_start = wpath.c_str();
			wchar_t* root_end;
			const HRESULT hr = PathCchSkipRoot(const_cast<wchar_t*>(root_start), &root_end);
			if (FAILED(hr))
			{
				Error::SetHResult(error, "PathCchSkipRoot() failed: ", hr);
				return false;
			}
			rootLength = static_cast<size_t>(root_end - root_start);

			// copy path root
			tempPath.append(wpath, 0, rootLength);
		}