From: Jeff King <peff@peff.net>
Date: Mon, 30 Aug 2021 20:49:26 GMT
Subject: Re: [PATCH] merge-recursive: use fspathcmp() in path_hashmap_cmp()
Message-ID: <YS1EVq2Gz+sPhw3c@coredump.intra.peff.net>
In-Reply-To: <8d2e0876-9441-9665-ebb1-8cb28902014b@web.de>

On Mon, Aug 30, 2021 at 08:22:25PM +0200, René Scharfe wrote:

> > It however may not be a bad idea to catch these code paths where a
> > local variable masks 'ignore_case' (and possibly other globals) and
> > rename these local ones to avoid a mistake like this.
> 
> The name itself is OK, I think, but using it at global scope is
> confusing.  -Wshadow can help find such cases, but not this one, as
> test-hashmap.c doesn't include the global declaration.  Moving the
> global into a struct to provide a poor man's namespace would fix this
> for all namesakes, assisted by the compiler.  We'd then access it as
> the_config.ignore_case or even the_config.core.ignore_case.
> 
> Moving all config-related variables would be quite noisy, I guess,
> and probably conflict with lots of in-flight patches, but might be
> worth it.

Really most of these ought to be in the repository struct anyway, I
would think. The value of ignore_case comes from core.ignorecase, which
is going to be repository-specific. We are probably doing the wrong
thing already by looking at the parent core.ignorecase value when
operating in an in-process submodule, but nobody noticed because it's
quite unlikely for a submodule to have a different setting than the
parent.

-Peff