Gentoo Archives: gentoo-dev

From: Ulrich Mueller <ulm@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] mtime preservation
Date: Thu, 26 Nov 2009 00:07:08
Message-Id: 19213.46817.620937.656202@a1i15.kph.uni-mainz.de
In Reply to: Re: [gentoo-dev] Re: mtime preservation by Ciaran McCreesh
1 >>>>> On Wed, 25 Nov 2009, Ciaran McCreesh wrote:
2
3 > On Wed, 25 Nov 2009 21:52:00 +0000 (UTC)
4 > Duncan <1i5t5.duncan@×××.net> wrote:
5 >> That's a great explanation (thanks, I now know the details to the
6 >> degree I'd be interested), but what was asked for was examples of
7 >> breakage, aka actual bugs.
8
9 > Why? You can easily look and see that it's broken.
10
11 Only for a suitable definition of "broken".
12
13 > Examples will merely be dismissed as one-off cases that can be
14 > worked around, or as relying upon a string of coincidences that will
15 > "obviously" never really happen, right up until they do, at which
16 > point they'll be dismissed with a WORKSFORME.
17
18 Real examples would be issues like bugs 83877 [1] or 263387 [2].
19 Nothing that could be easily dismissed or worked around. Both issues
20 are fixed with Portage since a long time.
21
22 I don't know of any example where non-preservation of nanosecond
23 timestamps would cause problems.
24
25 > What you have is a proof that it's broken, which is far better than
26 > an example.
27
28 So we have a proven theorem, but unfortunately the cases where it is
29 applicable form an empty set. ;-)
30
31 Ulrich
32
33 [1] <http://bugs.gentoo.org/83877#c36>
34 [2] <http://bugs.gentoo.org/263387>

Replies

Subject Author
Re: [gentoo-dev] mtime preservation Ciaran McCreesh <ciaran.mccreesh@××××××××××.com>
[gentoo-dev] Re: mtime preservation Duncan <1i5t5.duncan@×××.net>