From: Marcin Wiśnicki <mwisnicki@gmail.com>
Date: Thu, 06 Oct 2011 13:56:37 GMT
Subject: List of directories containing only ignored files
Message-ID: <CAC9GOO__nN9W1vvoMxq2LKnn=YoFPjTE6jKPbQ2h7im3JtujQA@mail.gmail.com>

What's the easiest way to find all directories that contain only
ignored files but are not ignored themselves.

For example, given following .gitignore:

  obj/

and following files:

  /project1/foo.c
  /project1/obj/foo.o
  /project2/obj/bar.o

Where /project2 contains leftovers from different branch that are not
cleared on switch because they are ignored.

I would like to see:

  /project2


Alternatively: how to remove such leftovers when switching branches ?