[PATCH] optionally disable normalization of working copy files in diff invocations

Hello,

attached is a patch against the current subversion trunk state (revision
1611327) that fixes a problem when using external diff programs that's
also been described years ago here:

http://svn.haxx.se/users/archive-2008-10/0664.shtml

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When passing the new diff command line option --no-normalization then
svn diff won't create and pass on a temporary, normalized version of a
file for local working copy files.
This normalization is the default behaviour when svn diff encounters
files that have the svn:keywords or svn:eol-style properties set, such
that the base version and the working copy version of the file have the
same format.
This makes it impossible to edit diffed files when using an external
--diff-cmd that supports editing, because the file passed to the
external tool is a temporary file that will be deleted afterwards,
instead of the original working copy file.
When passing --no-normalization the original file is passed to the diff
tool instead. External tools that can ignore whitespace differences
(present due to svn:eol-style) can still display decent diffs and the
benefit of editing the diffed files in place is helpful.
----
Best regards,
Matthias Gerstner
-- 
Matthias Gerstner, Dipl.-Wirtsch.-Inf. (FH)
Entwicklung
 
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