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SVN bug? merge replaces all files in an added directory

From: Rob Hubbard <rob.hubbard_at_softel.co.uk>
Date: Wed, 7 Oct 2009 09:41:03 +0100

Hello,

I have seen some odd behaviour in our source code repository. I have
tried to write a script to demonstrate the problem, but have been unable
to do so; my script always seems to produce the expected result.
Therefore, unfortunately, I do not know exactly what circumstances lead
to this problem; there is something happening on our main server that
I'm not doing in my test scripts (on a locally created repository). I'm
sorry that I have been unable to determine what that difference is.

The symptoms are that in a merge operation, when a directory has been
added in the source of the merge, every file within the directory is
replaced in the target.

Therefore, when the log of the committed merged revision is viewed,
rather than a simple

        A branch/directory (from /trunk/directory:1234)

you see

        A branch/directory (from /trunk/directory:1234)
        R branch/directory/file1.txt (from
/trunk/directory/file1.txt:1234)
        R branch/directory/file2.txt (from
/trunk/directory/file2.txt:1234)
        R branch/directory/file3.txt (from
/trunk/directory/file3.txt:1234)
        ...

I don't think this always happens.

I have tried experimenting with changes to the svn:eol-style, as I
suspected the problem might be to do with changes to that property. [I
believe that when this property is set, linefeeds are represented as LF,
so when a Windoze-style text file has the property set, even to 'CRLF',
every line in the file changes, but the changes are 'unimportant'.] I
thought that perhaps this property was changing independently of the
file content. However, that did not appear to be the case after all:
even with deliberate property changes I could not reproduce this
problem.

The SVN clients are version 1.6.5, server version 1.6.4. I'm not sure
what version the repository itself is, but it has ./format=3,
./db/format=1, ./db/fs-type=fsfs; is that a 1.3 structure? Could that be
relevant?

Other members of the team are using 1.6.x clients. It is possible that
some 1.5.x clients are in use, but I don't think so. This is all running
on Windows XP SP3 with the repository on Windows 2003 SP1.

Has anyone else seen this behaviour, or know why it happens?
Could it be due to some kind of user error?

This is not a major problem, but I would like to understand what is
going on.

If anyone could offer even just clues or untested suggestions I would
very much appreciate it.

(Please CC me on any replies.)

Many thanks,
Rob.

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Received on 2009-10-07 10:42:07 CEST

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