DirDiff plugin for Vim
If you like Vim's diff mode, you would love to do this recursively on two directories!
With pathogen.vim:
cd ~/.vim/bundle
git clone git://github.com/will133/vim-dirdiff
:DirDiff <dir1> <dir2>
If you use pathogen, you can use :Helptags to regenerate documentation. You then can see ":h dirdiff" for more information.
Copyright (c) 2001-2015 William Lee. (BSD-Like) See doc/dirdiff.txt.