Comments for timburks's nu  

drnic, that doesn’t handle the case where the bundle isn’t a git repository. i.e. i personally just hit the download button to install my copy. In retrospect, making it a git clone probably would have been more useful, but the point still stands

Instead of rm -rf’ing the folder, clone the repo if the folder doesn’t exist, or "cd folder && git pull" if the folder does exist, perhaps?