Several weeks ago I remember seeing an article on HN that was about analyzing version control history to find files that were usually changed at the same time, and using that to identify parts of the application that weren't as well-factored as they ought to be.
Google and https://hn.algolia.com/ search are failing me. Anyone have the URL to that post?
Ergosome
evSrc: Evolutionary couplings between files reveal poor design choices in software architecture
http://ergoso.me/computer/science/github/software/evolutiona...
https://news.ycombinator.com/item?id=8753174