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Subject: Re: [OMPI devel] Switching away from SVN?
From: Ralph H Castain (rhc_at_[hidden])
Date: 2008-03-21 10:24:36


On 3/21/08 7:41 AM, "Jeff Squyres" <jsquyres_at_[hidden]> wrote:

> The next MPI Forum meeting is April 28-30 in Chicago, IL. Following
> what we have been doing for the past 2 meetings, this means that the
> OMPI meeting will be 1-5pm US Central time on Wednesday, 30 April.
>
> We could probably have a teleconf portion for this, because I would
> imagine that this kind of discussion (perhaps with some hands-on and/
> or some brief slides) could translate well to a remote audience for
> those who don't want to travel just for a 1 afternoon meeting.

That would really help...thanks!

>
>
>
> On Mar 21, 2008, at 9:26 AM, Ralph H Castain wrote:
>> 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.
>>>> _______________________________________________
>>>> devel mailing list
>>>> devel_at_[hidden]
>>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>>
>>
>>
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>