codex: Code Explorer for Cabal
This tool download and cache the source code of packages in your local hackage,
he can then use this cache to generate
tags files aggregating the sources of all the dependencies of your cabal projects.
You basically do `codex update` in your cabal project directory and you'll get a
that you can use in your favorite text editor (VIMEmacsSublime).
For package maintainers and hackage trustees