Project Panama is moving to GitHub

Fri Jan 24 11:10:09 UTC 2020

While I knew this was possible technically, I was afraid it was 
something a bit against OpenJDK practices - but it seems like the 
current wording in OpenJDK supports such an use case:

"A Project must be sponsored by one or more Groups. A Project may have 
web content, one or more file repositories, and one or more mailing lists."

So I think, process-wise, we probably have cover.

Maurizio

On 24/01/2020 11:02, Jorn Vernee wrote:
>
> Erik tells me that this can be done.
>
> i.e. we create 2 GitHub repos, one 'panama-foreign' and one 
> 'panama-vector'. We move over the 'foreign' part of the project to 
> 'panama-foreign', and then set up the 'panama-vector' repo on GitHub 
> to be a read-only mirror of the current HG repository (just like the 
> overall Panama mirror [1] is now).
>
> All 'foreign' contributions would then go to the 'panama-foreign' repo.
>
> Once the 'vector' part of the project is ready they can make the move 
> as well.
>
> Jorn
>
> [1] : https://github.com/openjdk/panama
>
> On 23/01/2020 20:12, Paul Sandoz wrote:
>> I think a temporary split between hg for vector and git for all other 
>> Panama stuff is reasonable.  Is that possible?
>>
>> Some very detailed is work required, esp. in Hotspot, to prepare the 
>> Vector API for code review so the JEP can be prepared for target.
>>
>> My estimate is that such preparations may require up to 4 weeks of 
>> effort until everything stabilizes, but Sandhya and Vladimir will 
>> have a better sense than I.
>>
>> I am enthusiastic on the move to git/Skara but I also stronglyI 
>> empathize with Vladimir and Sandhya and others working on Vector API 
>> in HotSpot.  Adding a new workflow into the mix during that detailed 
>> work will likely make that work harder and more stressful. 
>>  Ordinarily I would not make arguments appealing to staying in the 
>> “comfort zone” but in this case I think it would disrupt the 
>> productivity of the developers at a crucial point.
>>
>> Paul.
>>
>>> On Jan 23, 2020, at 10:44 AM, Viswanathan, Sandhya 
>>> <sandhya.viswanathan at intel.com 
>>> <mailto:sandhya.viswanathan at intel.com>> wrote:
>>>
>>> Hi Jorn/Maurizio,
>>>
>>> There was a mention of splitting the Vector API and Foreign Panama 
>>> repos when move to github happens.
>>> Is it possible to keep Vector API in mercurial and proceed with 
>>> moving Foreign to github as per your plan?
>>>
>>> Best Regards,
>>> Sandhya
>>>
>>>
>>> -----Original Message-----
>>> From: Jorn Vernee <jorn.vernee at oracle.com 
>>> <mailto:jorn.vernee at oracle.com>>
>>> Sent: Thursday, January 23, 2020 10:16 AM
>>> To: Vladimir Ivanov <vladimir.x.ivanov at oracle.com 
>>> <mailto:vladimir.x.ivanov at oracle.com>>; Viswanathan, Sandhya 
>>> <sandhya.viswanathan at intel.com 
>>> <mailto:sandhya.viswanathan at intel.com>>; Paul Sandoz 
>>> <paul.sandoz at oracle.com <mailto:paul.sandoz at oracle.com>>; Maurizio 
>>> Cimadamore <maurizio.cimadamore at oracle.com 
>>> <mailto:maurizio.cimadamore at oracle.com>>
>>> Cc: Erik Duveblad <erik.helin at oracle.com 
>>> <mailto:erik.helin at oracle.com>>; Robin Westberg 
>>> <robin.westberg at oracle.com 
>>> <mailto:robin.westberg at oracle.com>>;panama-dev at openjdk.java.net 
>>> <mailto:panama-dev at openjdk.java.net>
>>> Subject: Re: Project Panama is moving to GitHub
>>>
>>> Hi Vladimir,
>>>
>>> If more time is needed we should postpone.
>>>
>>> Though, I think no matter when the move happens, some amount of 
>>> slowdown will be unavoidable. At some point we have to bite the 
>>> bullet, so I would like to try and pick a concrete date for the 
>>> move. If more time is needed at that point, or something else comes 
>>> up in the mean time, we can postpone again.
>>>
>>> How much time do you think is needed? Can you suggest a date?
>>>
>>> Thanks,
>>> Jorn
>>>
>>> On 23/01/2020 19:01, Vladimir Ivanov wrote:
>>>> I fully support the move to GitHub, but would like to suggest
>>>> postponing it for Vector API project.
>>>>
>>>> Currently, the project goes through a major refactoring and I'm afraid
>>>> that in the short term the adaption to new workflow will slow us down.
>>>>
>>>> I suggest to do the switch once most of the planned work land in the
>>>> repository.
>>>>
>>>> Best regards,
>>>> Vladimir Ivanov
>>>>
>>>> On 15.01.2020 02:30, Viswanathan, Sandhya wrote:
>>>>> The move and split are ok from our side as well.  We would need the
>>>>> automerge feature for "vector" also going forward.
>>>>>
>>>>> Best Regards,
>>>>> Sandhya
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>> From: panama-dev <panama-dev-bounces at openjdk.java.net 
>>>>> <mailto:panama-dev-bounces at openjdk.java.net>> On Behalf Of
>>>>> Paul Sandoz
>>>>> Sent: Tuesday, January 14, 2020 9:51 AM
>>>>> To: Maurizio Cimadamore <maurizio.cimadamore at oracle.com 
>>>>> <mailto:maurizio.cimadamore at oracle.com>>
>>>>> Cc: Erik Duveblad <erik.helin at oracle.com 
>>>>> <mailto:erik.helin at oracle.com>>; Robin Westberg
>>>>> <robin.westberg at oracle.com <mailto:robin.westberg at oracle.com>>; 
>>>>> panama-dev at openjdk.java.net <mailto:panama-dev at openjdk.java.net>
>>>>> Subject: Re: Project Panama is moving to GitHub
>>>>>
>>>>> Likewise, I support the move and split, with the few weeks heads up.
>>>>>
>>>>> Panama covers a wide area, in the future there might be other
>>>>> technically non-intersecting but complementary repos under Project
>>>>> Panama’s vision and governance.
>>>>>
>>>>> Paul.
>>>>>
>>>>>> On Jan 14, 2020, at 7:08 AM, Maurizio Cimadamore
>>>>>> <maurizio.cimadamore at oracle.com 
>>>>>> <mailto:maurizio.cimadamore at oracle.com>> wrote:
>>>>>>
>>>>>> I support both:
>>>>>>
>>>>>> * moving to Git
>>>>>> * adopting the PR model
>>>>>> * splitting vector from ffi support - we already have different set
>>>>>> of requirements for these two pieces (e.g. ffi branches are
>>>>>> automerged, vector ones are not), so IMHO it makes sense to split,
>>>>>> now that we have the ability to do so.
>>>>>>
>>>>>> Cheers
>>>>>> Maurizio
>>>>>>
>>>>>> On 14/01/2020 15:05, Jorn Vernee wrote:
>>>>>>> Adding Robin to CCs again, this time without a typo in the email
>>>>>>> address.
>>>>>>>
>>>>>>> Jorn
>>>>>>>
>>>>>>> On 14/01/2020 15:58, Jorn Vernee wrote:
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> You might have heard that there is an OpenJDK project named Skara
>>>>>>>> evaluating and trialing using Git for OpenJDK and GitHub for
>>>>>>>> hosting the repositories [1]. We have been asked to try out Git,
>>>>>>>> GitHub and the Skara tooling, as a means of validating, and to
>>>>>>>> provide feedback about the Project Skara effort. There is already
>>>>>>>> a number of OpenJDK projects using Git, GitHub and Skara:
>>>>>>>> - OpenJFX
>>>>>>>> - OpenJMC
>>>>>>>> - Loom
>>>>>>>> - Mobile
>>>>>>>> - Skara
>>>>>>>>
>>>>>>>> A transition entails switching to Git as an SCM (see the Git
>>>>>>>> manual [2]), and the repository would be hosted on GitHub [3].
>>>>>>>> After the transition, the current Mercurial repository would no
>>>>>>>> longer be updated. There is currently already a read-only mirror
>>>>>>>> in place [4], which you can use to try out Git and some of the
>>>>>>>> tooling, though submitting pull requests and pushing there are
>>>>>>>> currently not supported.
>>>>>>>>
>>>>>>>> I suggest that project Panama transition to git, GitHub and Skara
>>>>>>>> and that we set the target date for the transition to around 2
>>>>>>>> weeks from now. For example Monday the 27th of January, or
>>>>>>>> otherwise later if people need more time to prepare. I also
>>>>>>>> suggest we adopt GitHub's pull request workflow together with the
>>>>>>>> bots from project Skara.
>>>>>>>>
>>>>>>>> Adopting pull requests and the Skara bots means that the review
>>>>>>>> process would work partly through GitHub. In particular, all
>>>>>>>> changes must start out as pull requests. Skara automatically
>>>>>>>> generates webrevs, "RFR" emails and supports bi-directional
>>>>>>>> syncing between mailing lists and GitHub for those that prefer
>>>>>>>> using webrev and the mailing lists. If you are unfamiliar with
>>>>>>>> GitHub and pull requests, I suggest checking out GitHub's guide
>>>>>>>> [5]. Note that project Skara also provides CLI tools for
>>>>>>>> interacting with GitHub for those that prefer working from a
>>>>>>>> terminal. You can find more info about these tools on the Skara
>>>>>>>> wiki page [6] or from the Skara README [7].
>>>>>>>>
>>>>>>>> One question I would like to discuss is whether we should split
>>>>>>>> the current repository into two; one repository for the ffi work
>>>>>>>> and one repository for the vector API work (named e.g. panama-ffi
>>>>>>>> and panama-vector). Having these two distinct features in separate
>>>>>>>> repositories might make it easier for newcomers and followers to
>>>>>>>> understand where the latest changes are. We would still share the
>>>>>>>> same mailing list, but having two repositories would separate the
>>>>>>>> streams of traffic on GitHub, i.e. each project would have it's
>>>>>>>> own, separate, set of pull requests.
>>>>>>>>
>>>>>>>> If you have any comments or questions regarding this transition,
>>>>>>>> please reply to this thread.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Jorn
>>>>>>>>
>>>>>>>> [1] : https://openjdk.java.net/jeps/369 [2] :
>>>>>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__git-2Dscm.com_docs_user-2Dmanual&d=DwIGaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=EgJnHEyFBubRXnnJ53hVk-r0_ujYDiHtGXK9KByBXww&m=_E7eh28cLkaOrOyXTncj28eKlz5WnOwrHFfZ_EgT5yY&s=vjXriCUJOmwDTPyIwHlQUFWDrzWy7GW0ZpMjlOX7o5o&e=
>>>>>>>> [3] 
>>>>>>>> :https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_&d=DwIGaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=EgJnHEyFBubRXnnJ53hVk-r0_ujYDiHtGXK9KByBXww&m=_E7eh28cLkaOrOyXTncj28eKlz5WnOwrHFfZ_EgT5yY&s=6LDEQAhc-ChSRqdS8v1V-MzxNpN7bAJNHJnhMrEPEhA&e=
>>>>>>>> [4] 
>>>>>>>> :https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_openjdk_panama&d=DwIGaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=EgJnHEyFBubRXnnJ53hVk-r0_ujYDiHtGXK9KByBXww&m=_E7eh28cLkaOrOyXTncj28eKlz5WnOwrHFfZ_EgT5yY&s=-DK-libu_YG31JQ6Sx5saEaHMUXMt34V2Z-vPLD2__Q&e= [5] 
>>>>>>>> :
>>>>>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__guides.github.com_introduction_flow_&d=DwIGaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=EgJnHEyFBubRXnnJ53hVk-r0_ujYDiHtGXK9KByBXww&m=_E7eh28cLkaOrOyXTncj28eKlz5WnOwrHFfZ_EgT5yY&s=PpD3Cl2yQrexRToo6a8HNhdDDxJfZXgMFgnxfSJ-zdk&e=
>>>>>>>> [6] :https://wiki.openjdk.java.net/display/SKARA/Skara
>>>>>>>> [7] 
>>>>>>>> :https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_openjdk_skara&d=DwIGaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=EgJnHEyFBubRXnnJ53hVk-r0_ujYDiHtGXK9KByBXww&m=_E7eh28cLkaOrOyXTncj28eKlz5WnOwrHFfZ_EgT5yY&s=ECY8Apoo2C3ZaAaYqVpER2vmssbnm_g7t2yny27wzzk&e=
>>