I've recently been researching this for my own needs, and this author's md -> pandoc -> etc chain is pretty much where I settled. Reading this article, I was hoping to find a way to point code blocks at a git repo (local, remote, w/e) so that as code changes, the book follows (I do mean during the formatting phase - not that an ebook would follow a remote repo to get code.) I did not find that solution in this article.

Has anyone come up with a method for doing what I want? Maybe the ```lang code blocks in md could take parameters like repo, file, line range; then an update to pandoc would fix it all right up. Thoughts?