[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: long path names on windows prefixed with \\?\ not handled by svn commands

From: Heinz Prantner <heinz.prantner_at_opensynergy.com>
Date: Wed, 12 May 2010 11:05:03 +0200

Hello Bert,

yes, confirmed, providing absolute paths without the prefix \\?\
works. As you mention, we just have to know which function requires
the prefix, or has it implicit or does not support it at all.
Thanks for your clarification.

Heinz

On 11.05.2010, at 21:57, Bert Huijben wrote:

> Subversion uses the APR library which handles the escaping for
> specific API functions that allow this trick. The ‘\\?\’ style
> paths are not a different path, but just the original path escaped
> for a specific api.
> (Some Windows APIs allow this trick, others just support long paths
> directly and then there are functions that support neither. By
> passing the long path yourself you assume that all filesystem
> functions have this long path support)
>
> If you pass absolute paths to svn, it should support long paths
> directly. (Windows doesn’t support long relative paths). Subversion
> 1.7 will probably work better with long relative paths, as it will
> use absolute paths internally for almost every operation.
>
> Bert
>
> From: Heinz Prantner [mailto:heinz.prantner_at_opensynergy.com]
> Sent: dinsdag 11 mei 2010 14:21
> To: users_at_subversion.apache.org
> Subject: long path names on windows prefixed with \\?\ not handled
> by svn commands
>
> Hello,
>
> running svn client commands other than svn checkout on windows fail,
> if the path name (of the local working copy location) is prefixed
> with \\?\.
> The prefix is required for path names longer than 255 or so.
>
> It seems that svn commands like svn info or svn status behave
> different
> than svn checkout command regarding the path name prefix.
>
> example:
>
> svn info \\?\c:\long\path\name
> svn: '\' is not a working copy
>
> Any thoughts?
>
> (I am using svn client version 1.6.11 from CollabNet)
>
> Thanks,
> Heinz
>
>
>
>
>

Heinz Prantner
Senior Software Design Engineer

OpenSynergy GmbH
Rotherstr. 9, 10245 Berlin

t: +49 (30) 20 1818 35-23
f: +49 (39) 20 1818 35-02
m: +49 (179) 23 63 588
e: heinz.prantner_at_opensynergy.com

w: www.opensynergy.com

Handelsregister: Amtsgericht Charlottenburg, HRB 108616B
Geschäftsführung: Frank-Peter Böhm, Stefaan Sonck Thiebaut, Rolf Morich
Received on 2010-05-12 11:05:19 CEST

This is an archived mail posted to the Subversion Users mailing list.

This site is subject to the Apache Privacy Policy and the Apache Public Forum Archive Policy.