cygwin path with space as source path does not work about node-rsync HOT 1 CLOSED

function windowsPathToCygwinPath(dirPath) {
	// get diskSign and rest of dirPath
	const diskSign = dirPath[0].toLowerCase();
	dirPath = dirPath.substr(2);

	// replace backslashes with forward slashes
	dirPath = dirPath.split(path.sep).join(path.posix.sep);

	// prepend 'cygdrive'
	dirPath = `/cygdrive/${diskSign}${dirPath}`;

	// replace space with questionmark to escape it
	dirPath = dirPath.replace(/ /g, '?');

	return dirPath;
}