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Re: strange diffs reported due to wc round-trip in zip

From: Richard Carlsson <richard.carlsson_at_iar.se>
Date: Thu, 06 Mar 2008 17:59:34 +0100

David Glasser wrote:
> On Thu, Mar 6, 2008 at 5:00 AM, Richard Carlsson
> <richard.carlsson_at_iar.se> wrote:
>> We've seen some recent weirdness which seems to boil down
>> to the following:
>> 1. A text-base file contains $Id:$, rather than $Id$
>> 2. The wc being zipped up, and then unzipped again.
>> The result is that in the unzipped version of the wc (which is
>> otherwise identical to the original wc, according to diff/cmp),
> Can you clarify: when comparing the two wcs, byte-for-byte (including
> all .svn directories), what is the exact difference?

None whatsoever. All files, including the contents of .svn directories,
are identical. Still, I get this after zip/unzip:

>svn st original unzipped
M unzipped\src\Table.cpp
>diff -r original unzipped

I've tried different variations of flags to diff to make sure I'm not nuts.
And if I manually change a single character in some text-base file, it shows
up immediately with diff -r, so I'm fairly confident that there are no
differences between these directory trees. But svn diff says otherwise.
File system timestamps seem to be the only thing that have changed as
a result from the zip/unzip round trip.

     /Richard Carlsson

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Received on 2008-03-06 17:59:42 CET

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