Asset manager for NodeJs that reads supplied min files

I'm checking a lot of the asset management packages for Nodejs. However, I can't seem to find a manager, that reads the "min" version of a file. Example: If I define, lets say, '/js/jquery.js' in the config, but in the same folder the "jquery.min.js" exists. So it should just add that, instead of uglify/minify the uncompressed one.