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Re: [SVN-DEV] Re: svn needs a patch subcommand (Was svn ci/up --xml-file)

From: C. Scott Ananian <cananian_at_lesser-magoo.lcs.mit.edu>
Date: 2001-09-17 04:37:05 CEST

On 16 Sep 2001, Ben Collins-Sussman wrote:

> Mo, I see two different needs:
> 1. Subversion users need to be able to trade patches with one
> another, and the patches need to describe not only property
> changes, but tree deltas (e.g. deleting/adding/renaming
> directories as well as files.)
> 2. Subversion users need to be able to create patches for CVS or
> other non-Subversion users. An 'svn patch' subcommand should
> be similar to CVS's -- generate standard patch files.

Actually, there is only one need. 'patch' will ignore lines it does not
understand, so it is entirely possible (indeed, desirable) to create *one*
patch format which covers both of these cases. 'svn xdiff' generates
'patch++' format which is both a) usable with standard patch, and b)
usable as input to 'svn patch' which will apply the patch++ in its
entirety. Better yet, this patch format is a valid XML document!

I've already described how this is done, and sent an email to Mo just a
little bit ago re-stating it.

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              ( http://lesser-magoo.lcs.mit.edu/~cananian )
 "These students are going to have to find out what law and order is
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# MPEG 2 PS VOB file on stdin -> descrambled output on stdout
# arguments: title key bytes in least to most-significant order

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Received on Sat Oct 21 14:36:41 2006

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