From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH v4] gc: call "prune --expire 2.weeks.ago" by default
Date: Wed, 12 Mar 2008 16:13:06 -0700
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Cc: Brandon Casey <casey@nrlssc.navy.mil>,
	Jakub Narebski <jnareb@gmail.com>,
	Nicolas Pitre <nico@cam.org>, git@vger.kernel.org
To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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In-Reply-To: <alpine.LSU.1.00.0803122348210.1656@racer.site> (Johannes
 Schindelin's message of "Wed, 12 Mar 2008 23:50:39 +0100 (CET)")
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Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

>> Yuck; approxidate() returns ulong.  Can subtracting a ulong from another
>> ever go negative?
>> 
>> Besides, because there is no guarantee of the order of evaluation between
>> these two approxidate() calls, you may get +1 or -1 on the second boundary.
>> 
>> I think the reason why you did not catch it in your test is because your
>> tests are half complete; they test only what you wanted to catch
>> (misconfigured case) and do not test the other half (properly working
>> case).
>
> Yes, probably.  Of course, comparing a difference to 0 is absolutely 
> moronic.
>
> I should have written
>
> 				approxidate(value) >= approxidate("now"))
>
> in the first place.

Eh, sorry, but why?

> So, could you tell me, please, if I should resend the patch with your 
> --prune documentation, or without?

I like Nico's suggestion to put that "historical notes" in RelNotes, so
the documentation part is fine as is.