A Shake build system that builds a cabal project together with a set of dependencies available in source.
See Build.hs.
Note that this is fleshed from something slightly custom (you probably want to read/modify it for your own purposes), but demonstrates some Shake capabilities quite well.
To use it, remove the parts related to cabalgen (you probably don't want it) and drop it next to your .cabal file.
Built at Tsuru Capital.
BSD.