Now that GitHub is back up again, it looks like 
a cron version of <a href="https:&#x2F;&#x2F;help.github.com&#x2F;articles&#x2F;duplicating-a-repository&#x2F;" rel="nofollow">https:&#x2F;&#x2F;help.github.com&#x2F;articles&#x2F;duplicating-a-repository&#x2F;</a> would get me some of the way there.