Google-docs – Why doesn’t Grammarly work in Google Docs

It's a big problem with Google docs. The new version that the Google Apps team released last week is better with formatting, but for printing purposes, I usually just export to a Word doc and work from that.

Lars Kellog-Stedman created a great little python app called gitdriver which I found on this answer at StackOverflow. It does what you're looking for. It authenticates to Google with OAuth and pulls down all the revisions of a document, committing them to a git repository.

With this, you could fetch a versioned copy of your Google Doc and then work with it using traditional git tools.