Ctags

Make sure you've run ./install.sh & have installed vim-fugitive in vim.

Instructions

To install ctags in an existing project do:

git ctags && git init

For any new projects cloned it'll automatically adds the hooks to update ctags whenever you commit, merge, rebase or checkout in your project which is good enough.

Directory

The ctags are generated in {your project dir}/.git/tags, vim-fugitive by default looks into this directory for ctags.

Reference: http://tbaggery.com/2011/08/08/effortless-ctags-with-git.html