Re: [PATCH 3/3] get_maintainer: add patch-only pattern matching type

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On Wed, 2023-09-27 at 09:15 -0700, Kees Cook wrote:
> On Wed, Sep 27, 2023 at 03:19:16AM +0000, Justin Stitt wrote:
> > Add the "D:" type which behaves the same as "K:" but will only match
> > content present in a patch file.
> > 
> > To illustrate:
> > 
> > Imagine this entry in MAINTAINERS:
> > 
> > NEW REPUBLIC
> > M: Han Solo <hansolo@xxxxxxxxxxxxxxxx>
> > W: https://www.jointheresistance.org
> > D: \bstrncpy\b
> > 
> > Our maintainer, Han, will only be added to the recipients if a patch
> > file is passed to get_maintainer (like what b4 does):
> > $ ./scripts/get_maintainer.pl 0004-some-change.patch
> > 
> > If the above patch has a `strncpy` present in the subject, commit log or
> > diff then Han will be to/cc'd.
> > 
> > However, in the event of a file from the tree given like:
> > $ ./scripts/get_maintainer.pl ./lib/string.c
> > 
> > Han will not be noisily to/cc'd (like a K: type would in this
> > circumstance)
> > 
> > Note that folks really shouldn't be using get_maintainer on tree files
> > anyways [1].
> > 
> > [1]: https://lore.kernel.org/all/20230726151515.1650519-1-kuba@xxxxxxxxxx/
> 
> As Greg suggested, please drop the above paragraph and link. Then this
> looks good to me.
> 
> I would immediately want to send this patch too, so please feel free to
> add this to your series (and I bet many other hints on "git grep 'K:.\\b'"
> would want to switch from K: to D: too):
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
[]
> @@ -5057,7 +5057,7 @@ F:	Documentation/kbuild/llvm.rst
>  F:	include/linux/compiler-clang.h
>  F:	scripts/Makefile.clang
>  F:	scripts/clang-tools/
> -K:	\b(?i:clang|llvm)\b
> +D:	\b(?i:clang|llvm)\b

etc...

My assumption is that the K: --file use is just unnecessary
and it'd be better to only use the K: lookup on patches.

(and I've somehow stuffed up the receiving side of my
 email configuration so please ignore any emails to me
 that bounce for a while)




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