Is there a plugin for versioning files in the theme (style , .js and .php files)?

I checked the available wordpress plugins for versioning, but none seem to do what I need. I would like a way to peform some simple version control on the style sheet or .php files in the theme. Ideally a simple way so that the file history of each file is available and if a file is changed I can return to a previous version easily if needed.

Wordpress does this by defaut for pages and posts, but I can't find a way to easily version my theme files.