Make .gitignore ignore everything except a few files

Question

I understand that a .gitignore file cloaks specified files from Git\'s version control. I have a project (LaTeX) that generates lots of extra files (.auth, .dvi, .pdf, logs,

Answer 1

If you want to ignore the whole content of a directory except one file inside it, you could write a pair of rules for each directory in the file path. E.g. .gitignore to ignore the pippo folder except from pippo/pluto/paperino.xml

pippo/*
!pippo/pluto
pippo/pluto/*
!pippo/pluto/paperino.xml

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Note that if you simply had written above:

pippo/*
!pippo/pluto/paperino.xml

It wouldn't work because the intermediary pluto folder would not exist to Git, so paperino.xml could not find a place in which to exist.