git-p4 package in contrib, how to proceed?

[Luke Diamand <luke@diamand.org>]

Hi!

I'm trying to create a package  for 'git-p4', a python script which 
mirrors between git and Perforce (the latter is a proprietary version 
control system). I'm looking for advice on the best way to do this.

The source code lives in the upstream git repository, but isn't packaged 
with the regular 'git' package because of the proprietary nature of 
Perforce. I thought I'd try to create a separate package that could go 
into contrib instead.

I've created a bug report with a patch for the git package to implement 
this (773245) which Jonathan Nieder was kind enough to look at, but I'm 
struggling to understand what I should do next!

Is it going to be possible to get the regular git package to generate a 
secondary package in contrib? Or would I be better off with a new 
standalone package?

Thanks!
Luke