From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <bonzini@gnu.org>
Subject: Re: more fancy ignoring of files ('if' in .gitignore?)
Date: Tue, 27 Oct 2009 11:00:27 +0100
Message-ID: <4AE6C4BB.5060403@gnu.org>
References: <200910271030.54571.schubert.seb@googlemail.com>
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To: Sebastian Schubert <schubert.seb@googlemail.com>
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On 10/27/2009 10:30 AM, Sebastian Schubert wrote:
> Hi,
>
> I would like to ignore files if certain other files are present. In my
> special case, I want to ignore foo.pdf and foo.eps if foo.fig is
> present (both pdf and eps are generated on the fly but don't belong
> into repository). In general, I do NOT want to ignore pdf or eps. There
> are a lot of foos so I would like to have a general solution.
>
> Is this possible?

I suggesting adding to your makefile a rule like

.gitignore: $(wildcard *.fig)
	(grep -ve \.pdf$ \.eps$ .gitignore;
	for i in $^; do echo $i; done | \
		sed -n 's/fig$/eps/p; s/eps$/pdf/p') > .gitignore.tmp
	mv .gitignore.tmp .gitignore

Paolo