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From: Frans Englich <fenglich <at> fastmail.fm>
Subject: Re: Bug report: .gitattributes: -diff Unset causes files to be reported as binaries
Newsgroups: gmane.comp.version-control.git
Date: 2009-07-02 11:29:04 GMT (36 weeks, 8 hours and 15 minutes ago)
On Thursday 02 July 2009 13:12:28 Paolo Bonzini wrote:
> >> So as far as I can see, git is behaving exactly as it is supposed to.
> >> Maybe you can be more specific about what effect you were trying to
> >> achieve by setting gitattributes in the first place?
> >
> > To exclude it in diffs, such as from `git show`. Take the case where you
> > have a grammar file for a parser and generate a source file from it(or
> > any similar scenario); the diff for the generated source file is not of
> > interest and is just noisy when read as part of a patch. This applies to
> > all kinds of generated files. However, this doesn't mean that the file
> > should be treated as a binary, and what practicalities that implies.
>
> I am not sure it is a good idea, but you can do this with
>
> FILE diff=/bin/true
>
> > If -diff affects whether a file is treated as a binary, as opposed
> > whether it's diff'ed, it would imo make sense to call it -binary.
>
> No, diff affects how a file is diffed.  The particular setting "-diff"
> diffs the file as if it was binary.

Aha, then we're maybe at conclusion; if -diff doesn't cause the files to be 
treated as binaries, then the phrase "Binary files a/file.txt and b/file.txt 
differ" is wrong, it shouldn't read "Binary files", but maybe rather "The 
files".

Cheers,

		Frans