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Date:	Fri, 2 Nov 2001 21:43:24 -0500
From:	Christopher Faylor <cgf AT redhat DOT com>
To:	cygwin-apps AT cygwin DOT com
Subject:	Re: patches to vendor source trees - discussion
Message-ID:	<20011102214324.K31918@redhat.com>
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On Sat, Nov 03, 2001 at 01:37:03PM +1100, Robert Collins wrote:
>On Sat, 2001-11-03 at 13:25, Christopher Faylor wrote:
>> On Sat, Nov 03, 2001 at 01:15:54PM +1100, Robert Collins wrote:
>> >On Sat, 2001-11-03 at 13:03, Christopher Faylor wrote:
>> >>Couldn't the patch remove itself?
>> >
>> >Not if you create the patch via diff!
>> 
>> Why?  The patch could patch itself into a zero length file and the file
>> could be removed via "patch -E".
>
>To make the patch a zero length file, the entire contents need to be
>listed with a - before each line right?
>
>so how long is a file that completely contains itself?

Yep.  You're right.  If the patch was constructed from diff and if there
was only one file, you couldn't have the patch delete itself.

cgf

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