Dump/load question

[Fred Mailhot <fr...@gmail.com>]

Hi,

Pardon in advance for the painstaking explicitness of this
question...I want to be sure I'm being understood, since I'm not
perfectly comfortable with svn yet.

I guess this is a multipart question:

1) Assume I have a repo at revision 100, and I do the following:

$ svnadmin dump --revision 1:90 [path-to-repo] > partial.dump
$ svnadmin load [path-to-repo] < partial.dump

Will I have eliminated revisions 91-100 of my repository?

2) If the above works, let's now assume that my repo has a few subdirectories:

- repo
  - foo
  - bar
  - baz

and I want to "eliminate" the most recent revisions that affected "bar"...
Can I do the following?

$ svnadmin dump [path-to-repo] > full.dump
$ svnadmin dump --revision 1:90 [path-to-repo] > partial.dump
$ cat full.dump | svndumpfilter include foo > foo-full.dump
$ cat full.dump | svndumpfilter include baz > baz-full.dump
$ cat partial.dump | svndumpfilter include bar > bar-partial.dump
$ svnadmin load [path-to-repo] < foo-full.dump
$ svnadmin load [path-to-repo] < baz-full.dump
$ svnadmin load [path-to-repo] < bar-partial.dump

Thanks in advance for any assistance...

Fred.

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@subversion.tigris.org
For additional commands, e-mail: users-help@subversion.tigris.org

Re: Dump/load question

[Ryan Schmidt <su...@ryandesign.com>]

On Feb 6, 2007, at 13:24, Fred Mailhot wrote:

> 1) Assume I have a repo at revision 100, and I do the following:
>
> $ svnadmin dump --revision 1:90 [path-to-repo] > partial.dump
> $ svnadmin load [path-to-repo] < partial.dump
>
> Will I have eliminated revisions 91-100 of my repository?

Well... you'd have to delete the repository (or rename it or move it  
out of the way for backup purposes) and create a new empty one  
between those two steps:

$ svnadmin dump --revision 1:90 [path-to-repo] > partial.dump
$ mv [path-to-repo] [path-to-repo-backup]
$ svnadimn create [path-to-repo]
$ svnadmin load [path-to-repo] < partial.dump

Other than that, yes, I believe that will work. Anyone who has a  
working copy of any revision higher than 90 will have to trash it and  
check out a new one. (If they don't, things will probably break in  
horrible ways.)


> 2) If the above works, let's now assume that my repo has a few  
> subdirectories:
>
> - repo
>  - foo
>  - bar
>  - baz
>
> and I want to "eliminate" the most recent revisions that affected  
> "bar"...
> Can I do the following?
>
> $ svnadmin dump [path-to-repo] > full.dump
> $ svnadmin dump --revision 1:90 [path-to-repo] > partial.dump
> $ cat full.dump | svndumpfilter include foo > foo-full.dump
> $ cat full.dump | svndumpfilter include baz > baz-full.dump
> $ cat partial.dump | svndumpfilter include bar > bar-partial.dump
> $ svnadmin load [path-to-repo] < foo-full.dump
> $ svnadmin load [path-to-repo] < baz-full.dump
> $ svnadmin load [path-to-repo] < bar-partial.dump

As above, move the old repo out of the way, then create a new empty  
one, after you create the dumps, before you try to load the dumps  
back in.

Note that your revisions will get renumbered when they're loaded back  
in. Whether this is a problem for you depends on how you've used your  
repository. For example, if you've written lots of commit messages  
like "Merged revision 5 of foobranch into trunk" then those comments  
will no longer be accurate because the revision number will have  
changed in the new repo.

There may be a way to avoid most of this problem but I'm not sure  
because I haven't had to use svndumpfilter myself. Maybe someone else  
has some better advice.


-- 

To reply to the mailing list, please use your mailer's Reply To All  
function


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@subversion.tigris.org
For additional commands, e-mail: users-help@subversion.tigris.org