mojombo/jekyll — pull request #556 by parkr (2012-05-20 05:09:19+00:00)
Title: Do not delete repositories in _site upon build.

This pull request includes the code (with tests) that allows the user to keep repositories that are setup in `_site`, i.e. they are not deleted upon the execution of `Site#cleanup`. It covers Git, SVN, and Mercurial. Additionally, a configuration option was added to allow the user to turn this off if preferred, but on by default ("if it's there, don't touch it"-kind of reasoning).