From: Jeff King <peff@peff.net>
Date: Fri, 02 Jun 2017 22:30:04 GMT
Subject: Re: git-2.13.0: log --date=format:%z not working
Message-ID: <20170602223003.6etkdnnogb2jmoh3@sigill.intra.peff.net>
In-Reply-To: <22833.57584.108133.30274@a1i15.kph.uni-mainz.de>

On Sat, Jun 03, 2017 at 12:04:32AM +0200, Ulrich Mueller wrote:

> Actually, the POSIX definition for %Z continues: "or by no bytes if no
> timezone information exists." So also returning an empty string would
> be compliant (but maybe not very helpful).
> [...]
> I agree that GMT+0200 could be misleading. But what about resolving %Z
> the same as %z in the case of the author's time zone, as was suggested
> earlier? It is supposed to be human-readable output, or do we expect
> that someone would use the %Z output and e.g. plug it back into their
> TZ?

Yeah, I think these are the only real contenders: an empty string, or
"+0200" (which _isn't_ confusing, because it doesn't have the
abbreviation in front of it, so it pretty clearly is an offset from
GMT).

I don't have a preference between the other two.

The remaining question is whether we want to care about preserving the
system %Z for the local-timezone case.

-Peff