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Re: Upgrading from 1.4 to 1.6.3

From: Ryan Schmidt <subversion-2009b_at_ryandesign.com>
Date: Mon, 13 Jul 2009 14:37:01 -0500

On Jul 13, 2009, at 12:33, Stefan Sperling wrote:

> What happens if you use an intermittent

You mean intermediate?

> directory as the repository
> location, such as "<Location /svn/>" and run
>
> svn switch --relocate http://crossbow:81/toolbox/branches/vitaliy \
> http://crossbow:81/svn/toolbox/branches/vitaliy
>
> in the working copies?
>
> The FAQ entry I pointed to earlier says:
>
> "The solution is to make sure your repository <Location> does not
> overlap
> or live within any areas already exported as normal web shares."
>
> I'm not sure, but I guess a location of / would pretty much overlap
> with everything else?

That's not exactly what that means.

Consider that you have a virtual host:

<VirtualHost *:80>
        ServerName server
        DocumentRoot /path/to/documentroot
        <Location />
                DAV svn
                SVNParentPath /path/to/repositories
        </Location>
</VirtualHost>

Imagine that there is a repository at /path/to/repositories/foo but
there is also a directory at /path/to/documentroot/foo. What happens
if you request http://server/foo/? Which of the two entities will be
reached? It's undefined. Apache might choose the one or the other,
even changing its mind depending on the circumstances. That is the
situation described in the FAQ, and is why you should not have things
in your document root that match the things you want to serve with
Subversion.

In Vitaliy's case he intends to have a VirtualHost that does nothing
but Subversion:

>> <VirtualHost 10.2.8.10:81>
>> ServerName crossbow
>> <Location />
>> DAV svn
>> SVNParentPath /usr/local/subversion
>> AllowOverride All
>> # how to authenticate a user
>> AuthType Basic
>> AuthName "Subversion Repository"
>> AuthUserFile /var/www/.sub_passwd
>> AuthzSVNAccessFile /var/www/authz
>> Require valid-user
>> </Location>
>> </VirtualHost>

But no DocumentRoot has been defined in this VirtualHost, therefore
the server's global DocumentRoot is being used. Does that document
root have a directory "toolbox" in it? If so that could cause the
issue. The solution, and one you should employ in any case, is to
define in this VirtualHost a DocumentRoot, for example pointing to an
empty directory:

<VirtualHost>
DocumentRoot /var/empty
<Location />
...
</Location>
</VirtualHost>

If that does not help, you may still want to move your repositories
into a subdirectory of the URL space (e.g. <Location /svn/> as
suggested by Stefan). There seem to be some edge cases when serving
repositories out of the root of the URL space which Subversion does
not handle properly in all configurations, and you will avoid these
by serving out of a subdirectory. This can also help you by giving
you a place (e.g. your DocumentRoot) for files that don't necessarily
go in a repository, such as favicon.ico, robots.txt, svnindex.xslt, etc.

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Received on 2009-07-13 21:38:23 CEST

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