The vim integration piece uses the same concepts as the gdb integration. The rest uses some (very ugly) local scripts, cobbled together in 10-minute snatches of time over years. Hopefully, the functionality of the pieces not included here can be inferred from the names.
https://gist.github.com/bcgraham/f88e7e500e1b933bed1c7077f86...
I don't have the time now to clean it up, unfortunately. Before you judge too harshly, let him without sin cast the first stone.