From: Jeff King <peff@peff.net>
Date: Wed, 18 May 2016 00:58:25 GMT
Subject: Re: [Bug] git-log prints wrong unixtime with --date=format:%s
Message-ID: <20160518005824.GA7120@sigill.intra.peff.net>
In-Reply-To: <20160518004008.GA20007@sigill.intra.peff.net>

On Tue, May 17, 2016 at 08:40:08PM -0400, Jeff King wrote:

> So we need some way to tell strftime "...and by the way, this is the
> timezone for the value we are currently feeding you." There isn't a slot
> in "struct tm" for that, but I think maybe you can hack around it by
> setting the global "timezone" variable (and then restoring it
> afterwards).

I tried a few obvious things, but couldn't make anything work. Setting
"timezone" manually seems to do nothing. It's supposed to be set by
putting the right thing in $TZ and then calling tzset(). So I tried
munging $TZ to something like "+0200". It did have _some_ effect, but I
couldn't get it to behave correctly in all situations. And using "%z"
and "%Z" always just gives GMT.

So I dunno. Perhaps there is some way to coax sane behavior out of
strftime, but I could not figure it out. Suggestions welcome.

-Peff