SVN revert.

[Steve Constable <st...@hotmail.com>]

I want to revert -rHEAD to -rOLD (where OLD represents some valid previous
revision).
I have not made any local changes but simply recognize that the OLD version
is where I want to be and continue from there.
I've 'Googled' my question and some have suggested using 'merge' and then
commit.
Here is what I tried:

svn merge -rHEAD:50 Folder_name
svn commit Folder_name -m "try to revert back to -r50 as an experiment"
But neither command generated any output from SVN. I was expecting to
see the command output similar to when I check in a bunch of files.
When I did a svn stat, I see that I'm still at the HEAD. What I was really
expecting to see was that I'm now at HEAD+1 and the contents of HEAD+1 is
really the exact same as -rOLD.
Maybe SVN is not meant to be able to move the HEAD back to some old version?
Is there some way that others have achieved this?
It seems like a core functionality-so it must be do-able....no?

Thanks for any help.
-Steve

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RE: SVN revert.

["Srilakshmanan, Lakshman" <la...@police.vic.gov.au>]

Hi Steve,

Just as clarification, 

Cd Folder_name
svn merge -rHEAD:50 <http://zxc/weqwe/asdas/....>

The URL above must be the same URL you checked out into <Folder_name>

Thanks
Lakshman
-----Original Message-----
From: Andy Levy [mailto:andy.levy@gmail.com] 
Sent: Thursday, 15 October 2009 6:09 AM
To: Steve Constable
Cc: users@subversion.tigris.org
Subject: Re: SVN revert.

On Wed, Oct 14, 2009 at 14:37, Steve Constable <st...@hotmail.com> wrote:
> I want to revert -rHEAD to -rOLD (where OLD represents some valid 
> previous revision).
> I have not made any local changes but simply recognize that the OLD 
> version is where I want to be and continue from there.
> I've 'Googled' my question and some have suggested using 'merge' and 
> then commit.
> Here is what I tried:
>
> svn merge -rHEAD:50 Folder_name
> svn commit Folder_name -m "try to revert back to -r50 as an experiment"
> But neither command generated any output from SVN. I was expecting to 
> see the command output similar to when I check in a bunch of files.
> When I did a svn stat, I see that I'm still at the HEAD. What I was 
> really expecting to see was that I'm now at HEAD+1 and the contents of 
> HEAD+1 is really the exact same as -rOLD.
> Maybe SVN is not meant to be able to move the HEAD back to some old version?
> Is there some way that others have achieved this?
> It seems like a core functionality-so it must be do-able....no?

You're misunderstanding the purpose of revert. Revert is only to undo changes in your working copy since the last update/commit. It does not touch the repository.

To roll back to a previous version, you need to do a "reverse merge".
See http://svnbook.red-bean.com/en/1.5/svn.branchmerge.basicmerging.html#svn.branchmerge.basicmerging.undo

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Re: SVN revert.

[Andy Levy <an...@gmail.com>]

On Wed, Oct 14, 2009 at 14:37, Steve Constable
<st...@hotmail.com> wrote:
> I want to revert -rHEAD to -rOLD (where OLD represents some valid previous
> revision).
> I have not made any local changes but simply recognize that the OLD version
> is where I want to be and continue from there.
> I've 'Googled' my question and some have suggested using 'merge' and then
> commit.
> Here is what I tried:
>
> svn merge -rHEAD:50 Folder_name
> svn commit Folder_name -m "try to revert back to -r50 as an experiment"
> But neither command generated any output from SVN. I was expecting to
> see the command output similar to when I check in a bunch of files.
> When I did a svn stat, I see that I'm still at the HEAD. What I was really
> expecting to see was that I'm now at HEAD+1 and the contents of HEAD+1 is
> really the exact same as -rOLD.
> Maybe SVN is not meant to be able to move the HEAD back to some old version?
> Is there some way that others have achieved this?
> It seems like a core functionality-so it must be do-able....no?

You're misunderstanding the purpose of revert. Revert is only to undo
changes in your working copy since the last update/commit. It does not
touch the repository.

To roll back to a previous version, you need to do a "reverse merge".
See http://svnbook.red-bean.com/en/1.5/svn.branchmerge.basicmerging.html#svn.branchmerge.basicmerging.undo

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