If the project is using git, there's a git-extras package to show statistics on the git history where you can see the files that are most frequently worked on.

If the project is using git, there's a git-extras package to show statistics on the git history where you can see the files that are most frequently worked on. https://github.com/tj/git-extras/blob/master/bin/git-effort https://github.com/tj/git-extras/blob/master/bin/git-effort