RE: Resizing an existing repository while keeping the revision numbering

As it happens, subversion is really efficient with storing binary deltas, especially if you are talking
about builds of two nearby revisions for a library. It is very useful for regression testing, especially if you can not run all of the tests for each committed revision due to compute constraints.

Question though remains. Is it possible to add a flag to the svn load saying "start loading dump from revision nnnn?"
If that does not fit the design of subversion, what about a flag to svnadmin "put n empty(trivial change) revisions on top of the current repo?"

Doing svn ci of a dummy file via Perl script takes too long (about 2-3hours for 20k dummy revisions on my box).

A usage scenario is when you would like to have a mirror for all the revisions from now on, and do not bother with doing a 2-3 day sync over a slow connection for the whole repo.

best regards,
Oleg

-----Original Message-----
From: Andy Levy [mailto:andy.levy_at_gmail.com]
Sent: 22 July 2009 14:03
To: Andrey Repin
Cc: Oleg X Rasskazov
Subject: Re: Resizing an existing repository while keeping the revision numbering

On Wed, Jul 22, 2009 at 08:55, Andrey Repin<anrdaemon_at_freemail.ru> wrote:
> Greetings, Oleg X Rasskazov!
>
>> One of the ways we use subversion is to store compiled binaries of all the
>> revisions of a large library we are working on. Even with efficient
>> subversion storage algorithms (deltifying changes) and cheap hdds we are
>> running out of space.
>
> As far as I know, SVN deltify only text/* files.

Subversion performs a binary diff algorithm on all files for storage.
If the files/diffs are sufficiently large, then a completely new copy
will be stored.
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Received on 2009-07-22 18:38:55 CEST