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From Jens-Heiner Rechtien <>
Subject Re: An svn question
Date Mon, 27 Jun 2011 09:24:29 GMT
On 06/27/2011 10:08 AM, Mathias Bauer wrote:
> On 25.06.2011 14:05, Jens-Heiner Rechtien wrote:
>> Hi Mathias,
>> On 06/23/2011 07:15 PM, Mathias Bauer wrote:
>>> Hi,
>>> I'm no svn expert, but I hope to find some here.
>>> We still have a lot of work in so called child workspaces (in Mercurial
>>> they are just an own repository that originates from the "main"
>>> repository). When I thought about possible ways to move them to the
>>> Apache repository, I had the idea that doing this as a patch might be
>>> the easiest way:
>>> - it's trivial to create a patch of a CWS containing all changes
>>> - the patch does not have any copyright problems as all changes in it
>>> are done by Oracle employees or by other developers under SCA
>>> - changes on problematic files will just not apply if the file is not in
>>> the basic svn repo of OOo
>>> Sounds like a good idea, doesn't it?
>>> But now I recognized that this idea was based on the wonderful feature
>>> that the "git extended" diff format offers. It allows to have file
>>> removal, addition or renaming (that includes moves in the tree) or file
>>> attribute changes in the diff and by using "hg patch" (and not the patch
>>> command of the OS) all these changes apply nicely in the target
>>> repository.
>>> I didn't find a support for this in svn, but maybe there is something
>>> similar or comparable we could use.
>> Simply use "git apply". This tool applies git style patches to a working
>> directory which explicitly doesn't need to be a git repository as long
>> the --index option is not used. Nice tool, lots of possibility to fix
>> whitespace etc on the fly.
> But that doesn't solve the problem that you have to add/remove files in
> svn manually after using git apply, right? For some CWS this is the most
> tedious part (refactoring, gbuildifying etc.).
> Maybe using
> svn status | grep '?' | sed 's/^.* /svn add /'
> or so and something similar for "svn remove" should work, but perhaps
> there's something built into svn that makes it easier?!

Adding is easy because it works recursive. Deleting is a bit more work. 
The real PITA is renaming ...

I would use the "git apply --summary" feature on a patch to get all the 
added, renamed and deleted files. A bit of scripting will probably be 


$ hg export --git -r 3d41828c7d6b > patch
$ gitapply --summary patch
  rename sfx2/source/dialog/about.cxx => cui/source/dialogs/about.cxx (0%)
  create mode 100644 cui/source/dialogs/about.hrc
  rename svx/source/intro/iso.src => cui/source/dialogs/about.src (0%)
  rename sfx2/inc/about.hxx => cui/source/inc/about.hxx (0%)
  rename svx/source/intro/{intro_tmpl.hrc => about_ooo.hrc} (0%)
  rename svx/source/intro/{ooo.src => about_ooo.src} (0%)

You'll need the --force option of 'svn rename' and 'svn delete' after 
applying the patch.

> I assume that tracking of moved files does not work anyway in svn (what
> a PITA!), so the best one could get is a list of all missing and new files.
> Regards,
> Mathias


Jens-Heiner Rechtien

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