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From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: Norbert Kiesel <nkiesel@gmail.com>,
	Stefan Beller <sbeller@google.com>,
	"git@vger.kernel.org" <git@vger.kernel.org>
Subject: Re: [PATCH 0/3] fix local_tzoffset with far-in-future dates
Date: Mon, 20 Jun 2016 18:21:12 -0400	[thread overview]
Message-ID: <20160620222112.GB6431@sigill.intra.peff.net> (raw)
In-Reply-To: <xmqqy45zse7o.fsf@gitster.mtv.corp.google.com>

On Mon, Jun 20, 2016 at 03:11:23PM -0700, Junio C Hamano wrote:

> Jeff King <peff@peff.net> writes:
> 
> > I still don't know how that screwed-up timestamp got _into_
> > a commit, so perhaps there is another bug lurking.  I couldn't convince
> > git to parse anything beyond 2100, and committing with
> > GIT_AUTHOR_DATE='@5758122296 +0000' works just fine.
> 
> Interesting.  The weirdest I could come up with was with
> 
>     GIT_AUTHOR_DATE='@5758122296 -9999
> 
> which gets turned into the same timestamp but with -10039 timezone
> (simply because 99 minutes is an hour and 39 minutes).

Yeah, as weird as that is, I think it's reasonable. We _could_ turn
nonsense timezones into "+0000". That doesn't necessarily help the user
much, but at least it's less bizarre than making a 46-year timezone
offset.

I also looked for other uses of tm_to_time_t without checking for an
error return. Most of them do check. The exception is datestamp(), but
is calling it on the output of localtime(time()), which should generally
be sensible.

-Peff

  reply	other threads:[~2016-06-20 22:22 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-20 18:41 unable to pull from remote if commit date is in the future Norbert Kiesel
2016-06-20 18:46 ` Stefan Beller
2016-06-20 19:05   ` Norbert Kiesel
2016-06-20 19:39     ` Jeff King
2016-06-20 19:45       ` Norbert Kiesel
2016-06-20 19:46       ` Jeff King
2016-06-20 20:00         ` Jeff King
2016-06-20 21:09           ` [PATCH 0/3] fix local_tzoffset with far-in-future dates Jeff King
2016-06-20 21:10             ` [PATCH 1/3] t0006: rename test-date's "show" to "relative" Jeff King
2016-06-20 21:11             ` [PATCH 2/3] t0006: test various date formats Jeff King
2016-06-20 21:14             ` [PATCH 3/3] local_tzoffset: detect errors from tm_to_time_t Jeff King
2016-06-20 22:11             ` [PATCH 0/3] fix local_tzoffset with far-in-future dates Junio C Hamano
2016-06-20 22:21               ` Jeff King [this message]
2016-06-21  6:37                 ` Norbert Kiesel
2016-06-21 12:18                   ` Jeff King
2016-06-20 19:49       ` unable to pull from remote if commit date is in the future Eric Deplagne
2016-06-20 20:02         ` Jeff King
2016-06-20 20:27 ` Andreas Schwab

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