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Re: SVN + Shadow Copy

From: Mat Booth <mat.booth_at_wandisco.com>
Date: Tue, 31 Jul 2012 11:55:47 +0100

On 31 July 2012 11:01, Nico Kadel-Garcia <nkadel_at_gmail.com> wrote:
> On Tue, Jul 31, 2012 at 5:31 AM, Mat Booth <mat.booth_at_wandisco.com> wrote:
>> On 30 July 2012 20:52, Fernando Gomes <Fernando.Gomes_at_grupospring.com> wrote:
>>> Hello all,
>>>
>>> I am a rather experienced developer and I’m currently trying to use SVN to back up a batch of files automatically every X hours. The problem is that some of the files are open and the commit fails entirely.
>>> I have managed to invoke a non-persistent Shadow Copy over the volume but since I am not using a windows server but windows 7 the shadow copy is read-only. (I am using the vscsc.exe variant of the Shadow Copy SDK from Microsoft).
>>>
>>> Everything would work just fine if this Shadow Copy was write-enabled because the .svn folder files cannot be edited and because so the script (running "svn add" or "svn commit") cannot complete.
>>>
>>> Has anyone tried this scenario before? If so is there any way to invoke a simple "svn commit" over open files (using shadow copy or not) on an non-server based operating system?
>>>
>>> Thank you for any thoughts,
>>>
>>> Fernando M. A. Gomes
>>>
>>
>>
>> Subversion is not a backup system. Usually you would arrange for a
>> separate system to backup your Subversion repositories.
>>
>> I can't help feeling there is a better tool out there for your use-case.
>
> Matt, it looks like he wants to back up working copies, not
> repositories.

Exactly, but as I've said Subversion itself isn't a backup system and
shouldn't really be used as such.

> Fernando, if you can leave the working copy somewhere
> else and shadow copy your relevant source material to *that*, I think
> you'd be in better shape.
>
> "Files being open" and thus unable to be copied is a typical Windows
> problem in an ative system. It's potentially exacerbated if you use
> svn:keywords, and the files are expected to be edited dynamically when
> committted.
>
> It's an interesting problem, and understandable. For pure backup,
> rather than long-term source control, I've used rsnapshot and variants
> of it. And for snapshotting Windows based filesystems I've made sure
> to export them via CIFS and expose them via a more sane filesystem
> structure. I don't necessarily get to copy those locked files, but it
> doesn't block the whole backup procedure.

-- 
Mat Booth
Software Engineer
WANdisco, Inc.
http://www.wandisco.com
Received on 2012-07-31 12:56:20 CEST

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