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Subject: Re: [OMPI devel] Switching away from SVN?
From: Ralph H Castain (rhc_at_[hidden])
Date: 2008-03-21 09:26:40


Great!

I don't have a religious preference between the options (hg vs git vs ??),
but think we should definitely move away from svn.

Someone mentioned discussing this at some upcoming meeting? Could you send
around some info on this, since (ahem) some of us at least are -not-
involved in the wonderful MPI Forum, and have no idea when this might be
taking place???

Thanks
Ralph

On 3/21/08 6:52 AM, "Jeff Squyres" <jsquyres_at_[hidden]> wrote:

> Cool -- thanks Roland!
>
> For anyone who wants to play with the entire history of OMPI in git
> (as of last night or so -- this git repository is *not* being kept in
> sync with SVN), I cloned the tree that Roland created and put it here:
>
> http://www.open-mpi.org/~jsquyres/unofficial/ompi.git
>
> So you can:
>
> git clone http://www.open-mpi.org/~jsquyres/unofficial/ompi.git
>
> And then work with local git operations from there.
>
>
>
> On Mar 20, 2008, at 8:53 PM, Roland Dreier wrote:
>> <http://utsl.gen.nz/talks/git-svn/intro.html> has some interesting
>> info about svn->git conversions (and svn vs. next-gen distibuted
>> systems in general).
>>
>> Also, out of curiousity I tried doing
>>
>> git-svn clone --stdlayout http://svn.open-mpi.org/svn/ompi/
>>
>> and it seemed to work fine (git-svn is part of the main git
>> distribution). The only obvious thing missing is that you would
>> probably want to set up an author file for a real conversion, so that
>> you get real names instead of just "jsquyres". It took a while to
>> run, mostly because it has to grab each svn changeset one by one.
>>
>> The interesting thing is that a checkout of the current ompi tree
>> seems to be about 37 MB, while .git directory of my repository, which
>> has the entire history of all branches of the svn repository plus
>> 1.6MB of svn metadata is 36 MB. And git can do fun stuff like
>>
>> git diff v1.1..v1.2
>>
>> in half a second (it generates a 274858 line diff). It can generate
>> the full 116320 line (11164 commit) log of the trunk in .3 seconds.
>>
>> Jeff, if you want to see the repository, it is in
>>
>> /data/home/roland/ompi.git
>>
>> Feel free to make it available however you want (it's your data of
>> course).
>>
>> - R.
>> _______________________________________________
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>