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From: Junio C Hamano <gitster@pobox.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Imre Deak <imre.deak@gmail.com>, git@vger.kernel.org
Subject: Re: [PATCH] builtin-apply: check for empty files when detecting creation patch
Date: Tue, 13 May 2008 15:34:05 -0700	[thread overview]
Message-ID: <7vlk2dsujm.fsf@gitster.siamese.dyndns.org> (raw)
In-Reply-To: <alpine.LFD.1.10.0805131514300.3019@woody.linux-foundation.org> (Linus Torvalds's message of "Tue, 13 May 2008 15:24:45 -0700 (PDT)")

Linus Torvalds <torvalds@linux-foundation.org> writes:

> Look at CVS-generated patches, or SVN for that matter. The diffs look like 
> this:
>
> 	Index: file
> 	===================================================================
> 	--- file (revision 0)
> 	+++ file (working copy)
> 	@@ -0,0 +1 @@
> 	+test
>
> and there is no /dev/null there.
>
> The thing is, git-apply is careful, and it's very much careful with 
> respect to *knowing* that there are lots of different versions of "diff" 
> floating around, and lots of different SCM systems that generate odd diff 
> headers. We should absolutely NOT start expecting that diffs are only 
> generated with GNU diff.
>
> So non-/dev/null'ness means absolutely nothing. It means "don't know", and 
> we should leave is_new and is_delete as -1.

Ok, then what's the judgement for the original issue?  Is it a user error
to have a tracked absolutely empty file in the index?

  reply	other threads:[~2008-05-13 22:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-08 14:39 [PATCH] builtin-apply: check for empty files when detecting creation patch Imre Deak
2008-05-11  2:36 ` Junio C Hamano
2008-05-13 20:16   ` Imre Deak
2008-05-13 21:48     ` Junio C Hamano
2008-05-13 22:24       ` Linus Torvalds
2008-05-13 22:34         ` Junio C Hamano [this message]
2008-05-13 22:58           ` Linus Torvalds
2008-05-14  0:13             ` Junio C Hamano
2008-05-14  1:14               ` Linus Torvalds
2008-05-17  9:12                 ` Junio C Hamano
2008-05-17  9:18                   ` [PATCH 1/2] builtin-apply: accept patch to an empty file Junio C Hamano
2008-05-17  9:19                   ` [PATCH 2/2] builtin-apply: do not declare patch is creation when we do not know it Junio C Hamano

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