[gmx-developers] private branch problem

Jochen Hub jhub at gwdg.de
Wed Jul 11 09:05:51 CEST 2012 


Am 7/10/12 6:40 PM, schrieb Roland Schulz:
> On Tue, Jul 10, 2012 at 12:28 PM, Szilárd Páll <szilard.pall at cbr.su.se> wrote:
>> On Tue, Jul 10, 2012 at 6:20 PM, Berk Hess <hess at kth.se> wrote:
>>> On 07/10/2012 06:06 PM, Roland Schulz wrote:
>>>>
>>>> On Tue, Jul 10, 2012 at 11:44 AM, Berk Hess <hess at kth.se> wrote:
>>>>>
>>>>> On 07/10/2012 05:19 PM, Roland Schulz wrote:
>>>>>>
>>>>>> On Tue, Jul 10, 2012 at 11:12 AM, Berk Hess <hess at kth.se> wrote:
>>>>>>>
>>>>>>> But if private branches only act as a git repository, there's no point.
>>>>>>> Then I would suggest to create a private repository on the gromacs
>>>>>>> server.
>>>>>>
>>>>>> The difference is that to create branches and set permissions on
>>>>>> git.gromacs.org one has to ask one of the admins. The private branches
>>>>>> lets one create branches and set the permissions for the own private
>>>>>> branches oneself.
>>>>>>
>>>>>> But personally I think github is more convenient to use and might be
>>>>>> the best option for most private branches.
>>>>>>
>>>>>> Roland
>>>>>
>>>>> There might be trade offs between simplicity, features and maintenance
>>>>> effort.
>>>>> I am not up to date on the configurations of the repositories and their
>>>>> options.
>>>>> It could be convenient to have the ability to use the gerrit testing
>>>>> system on private branches,
>>>>
>>>> I don't think it is possible to configure Jenkins to auto-build for
>>>> private branches. But it is possible to build using "Build now" (e.g.
>>>> http://jenkins.gromacs.org/job/Gromacs_Gerrit_4_6/build) and give the
>>>> ref of the private branch. This works with any ref valid on gerrit or
>>>> git.gromacs.org. One cannot build branches which are only on external
>>>> repos (e.g. github).
>>>>
>>>>> but on the other hand setting up a gerrit branch and especially pushing
>>>>> up a draft
>>>>> and triggering the build is non-trivial.
>>>>
>>>> I agree. But unless we have more man-power we will need to wait until
>>>> others fix issues we report. All I can do is report bugs against
>>>> Gerrit/Jenkins, which I have done quite extensively. The main issue
>>>> with draft is going to be fixed in Gerrit 2.5
>>>> (http://code.google.com/p/gerrit/issues/detail?id=1437)
>>>>
>>>>> github might be the simplest option, but it would be good to concentrate
>>>>> the different
>>>>> gromacs "side"-projects in one place to create more of a community. The
>>>>> question
>>>>> is how much setup and maintenance effort this takes, as we are
>>>>> chronically short of
>>>>> project management man power.
>>>>
>>>> Yes that's why I added the private branches in Gerrit. Because that
>>>> gave us a web-fronted for private repositories without much effort.
>>>> Why do you think it is less user-friendly then it would be on
>>>> git.gromacs.org? I don't think "git push origin
>>>> HEAD:refs/private/rschulz/test" is cryptic. I think it is a good idea
>>>> to have a username in the ref of private branches to know who is
>>>> mainly responsible for a given branch. Without it is e.g. difficult to
>>>> know whether a certain branch is still needed. Thus even on
>>>> git.gromacs.org I would suggest to make it "git push origin
>>>> HEAD:refs/rschulz/test". The reason on gerrit it has the extra
>>>> "private" is that otherwise the web-ui for the permissions got
>>>> overwhelming/confusing. And while the "private" makes it longer, I
>>>> thought it isn't a big deal.
>>>>
>>>> Roland
>>>
>>> So reading these mails it seems that private branches on gerrit might be the
>>> best
>>> solution and everything is already set up, except maybe the permissions.
>>> I thinks we want to allow more people than just gmx-core to be able to start
>>> a private branch.
>>> But do we want to allow any registered user to do this? Then we have no (a
>>> priori) control.
>>
>> if we want to manage everything through gerrit, I think we *need* a
>> more layered user hierarchy, possibly by introducing a new group e.g.
>> "gmx-dev" for developers with higher privileges than simple registered
>> users.
>
> Should I create a gmx-dev group which contains gmx-core and Jochen.
> gmx-core would have the permission +2/-2 and gmx-dev would have the
> permission to create private branches. Anyone who also wants to create
> private branches would just need to ask to be added to gmx-dev.


First of all, thanks a lot for discussing this issue. It seems to me 
like the gmx-dev solution find biggest support. Roland, are you going to 
setup the gmx-dev group and add me to the group?

Please let me know if you need to know more more details on my project.

Jochen

>
> Roland
>
>>
>>> It would be good if a short description of the project is required for a
>>> private branch
>>> and that we can keep to of who has access or accesses the repositories.
>>>
>>> Cheers,
>>>
>>> Berk
>>>
>>>>
>>>>
>>>>> Cheers,
>>>>>
>>>>> Berk
>>>>>>>
>>>>>>> Cheers,
>>>>>>>
>>>>>>> Berk
>>>>>>>
>>>>>>> On 07/10/2012 05:01 PM, Roland Schulz wrote:
>>>>>>>>
>>>>>>>> On Tue, Jul 10, 2012 at 4:55 AM, Jochen Hub <jhub at gwdg.de> wrote:
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> one update:  In order to push to gerrit, I tried:
>>>>>>>>>
>>>>>>>>> $ git push private
>>>>>>>>>
>>>>>>>>> But his gives:
>>>>>>>>>
>>>>>>>>> [remote rejected] private_jochenhub/waxs ->
>>>>>>>>> refs/private/jochenhub/waxs
>>>>>>>>> (can not create new references)
>>>>>>>>> error: failed to push some refs to
>>>>>>>>> 'ssh://jochenhub@gerrit.gromacs.org:29418/gromacs'
>>>>>>>>>
>>>>>>>>> Does anyone know what this means?
>>>>>>>>
>>>>>>>> The reason is that you are not in the gmx-core group and the private
>>>>>>>> branches are only available to gmx-core members.
>>>>>>>> Should I allow the creating of private branches for any registered
>>>>>>>> user? Or only per request and in this case for Jochen?
>>>>>>>> Or should I add Jochen to the gmx-core? Besides private branches,
>>>>>>>> gmx-core gives the permission to vote +2/-2 (opposed to only +1/-1)
>>>>>>>> and thus approve a change.
>>>>>>>> So far I added those to the gmx-core group which were already in the
>>>>>>>> gmx-core group on git.gromacs.org.
>>>>>>>>
>>>>>>>> On Tue, Jul 10, 2012 at 5:37 AM, Berk Hess <hess at kth.se> wrote:
>>>>>>>>>
>>>>>>>>> But where do they end up then on the gerrit web pages?
>>>>>>>>> We don't want the main page to show private branches, I would think.
>>>>>>>>
>>>>>>>> Private pages don't show up on the web page. Private branches don't
>>>>>>>> support code review. They only act as a git repository and the user
>>>>>>>> can set the permission for his own private branches himself.
>>>>>>>>
>>>>>>>> Roland
>>>>>>>>
>>>>>>>>
>>>>>>>>> Many thanks,
>>>>>>>>> Jochen
>>>>>>>>>
>>>>>>>>> Am 7/10/12 10:33 AM, schrieb Jochen Hub:
>>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> I try to setup a private branch on gerrit that can be shared within
>>>>>>>>>> the
>>>>>>>>>> group. I followed the instruction in the Gerrit tutorial, added
>>>>>>>>>> these
>>>>>>>>>> lines to .git/config,
>>>>>>>>>>
>>>>>>>>>> [remote "private"]
>>>>>>>>>>              fetch =
>>>>>>>>>> +refs/private/jochenhub/*:refs/remotes/private_jochenhub/*
>>>>>>>>>>              url = ssh://jochenhub@gerrit.gromacs.org:29418/gromacs
>>>>>>>>>>              push =
>>>>>>>>>> refs/heads/private_jochenhub/*:refs/private/jochenhub/*
>>>>>>>>>>
>>>>>>>>>> and did a
>>>>>>>>>>
>>>>>>>>>> $ git pull private release-4-5-patches
>>>>>>>>>> (just "git pull private" as stated in the tutorial did not work)
>>>>>>>>>> $ git checkout -b private_jochenhub/mybranch --track mybranch
>>>>>>>>>>
>>>>>>>>>> where mybranch was a local branch already present. Now, "git branch"
>>>>>>>>>> lists (amount the other branches):
>>>>>>>>>> mybranch
>>>>>>>>>> private_jochenhub/mybranch
>>>>>>>>>>
>>>>>>>>>> But now I am a bit stuck. How do push changes to gerrit, so people
>>>>>>>>>> from
>>>>>>>>>> my group can access it? And where can I set the permissions, since
>>>>>>>>>> on
>>>>>>>>>> the Gerrit site under Admin/Project/Access I don't see my private
>>>>>>>>>> branch. There is only a section "Reference:
>>>>>>>>>> refs/private/${username}/*",
>>>>>>>>>> which lists gmxcore under permissions.
>>>>>>>>>>
>>>>>>>>>> Any help is highly appreciated!
>>>>>>>>>>
>>>>>>>>>> Many tnanks,
>>>>>>>>>> Jochen
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> ---------------------------------------------------
>>>>>>>>> Dr. Jochen Hub
>>>>>>>>> Computational Molecular Biophysics Group
>>>>>>>>> Institute for Microbiology and Genetics
>>>>>>>>> Georg-August-University of Göttingen
>>>>>>>>> Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany.
>>>>>>>>> Phone: +49-551-39-14189
>>>>>>>>> http://cmb.bio.uni-goettingen.de/
>>>>>>>>> ---------------------------------------------------
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
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>>>>>>>
>>>>>>
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-- 
---------------------------------------------------
Dr. Jochen Hub
Computational Molecular Biophysics Group
Institute for Microbiology and Genetics
Georg-August-University of Göttingen
Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany.
Phone: +49-551-39-14189
http://cmb.bio.uni-goettingen.de/
---------------------------------------------------

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