Re: [RFC/PATCH] dontdiff: generate from gitignore

From: Linus Torvalds
Date: Fri Sep 12 2008 - 13:38:17 EST




On Fri, 12 Sep 2008, Randy Dunlap wrote:
>
> Generate the "dontdiff" file from the .gitignore files.

t's not quite as simple as that, though.

The .gitignore files are fundamentally location hierarchy-aware, so a
ignore entry in one subdirectory only affects that subdirectory
(recursively), so if you flatten then, you should take that into account.

As far as I can tell, your script will generate lots of incorrect entries
due to this. Eg, it will generate

parse.[ch]

as a dontdiff pattern, because scripts/genksyms/.gitignore has that, but
that means that now it will ignore parse.c in all the _other_ places,
where it *isn't* a generated file (ie mm/parse.c).

Linus
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