New hotspot project repos

[David Holmes]

Kelly O'Hair said the following on 07/21/11 08:20:
> On Jul 20, 2011, at 12:59 PM, Paul Hohensee wrote:
> On 7/20/11 3:39 PM, Kelly O'Hair wrote:
>>> A few questions:
>>>
>>> Q1: Will the old jdk7/hotspot-* forests be deleted at some point to avoid confusion?
>> Possibly, but that decision is above my pay grade.
> 
> If they are no longer used, and contain nothing over and above what is in the other repos,
> I think you have the power to ask that they be deleted, regardless of your pay grade. ;^)
> 
> The only reason I can see for keeping them would be to preserve any possible http
> links to the changesets in them, but that's a weak excuse in my book compared to the
> benefit of uncluttering the main repo list page.

It is very important that we preserve html links from CRs to changesets. 
It should be that for each link to a hotspot-* changset there is a 
corresonding link to the master hotspot changset so that should be ok. 
But in some cases (when there have been infrastructure issues for 
example) some of the links may be absent from the CR.

Unless we get critically short of disk space I would preserve everything 
as-is.

The top-level repo list page seems doomed to forever be a mess simply 
because of the way things are presented. Maybe there is some way to only 
show a top-level entry for each major set of repos ie jdk7, jdk8, hsx, 
instead of: jdk7/jdk7/, jdk7/hotspot-* etc ?

David
-----

>>> Q2: I assume these hsx/hotspot-* repositories are just single hotspot repositories, not forests?
>> They are actually repo forests because they each include JDK8 repo forests, in the
>> same way that each jdk7/hotspot* repo included a JDK7 repo forest.  That's because
>> there are some jvm features that are co-developed with the JDK libraries.
> 
> Good to know. Thanks.
> 
>>> Q3: I assume that jdk8/hotspot still exists and is related to hsx/hotspot-main, can you explain the
>>>       process of how you will deliver changes into jdk8/hotspot?
>> jdk8/hotspot doesn't exist, but jdk8/jdk8/hotspot does.  The latter is the JDK8
> 
> I did mean jdk8/jdk8/hotspot.
> 
>> master version of hotspot, just as jdk7/jdk7/hotspot was the JDK7 master version
>> of hotspot.  We plan to promote hotspot builds from hsx/hotspot-main through
>> hsx/hsx22 to jdk8/jdk8/hotspot.  hsx/hsx22 will hold the snapshot of
>> hsx/hotspot-main that we run through PIT testing.
> 
> Understood, thanks for the clarification.
> 
>>> Q4: It appears that jdk8/hotspot is out of date (jdk7-b143 vintage instead of b147), will that be fixed soon?
>>>
>> Yes.  Erik Trimble tells me he plans to push hs22 to jdk8 at the end of this week.
> 
> Good. It has been causing some problems in other jdk8 team forests.
> 
>>
>>> Q5: I assume that the same jcheck extension rules apply to these repositories:
>>>        - No duplicate bugids in changesets
>>>        - Same changeset comment syntax conventions
>>>        - Whitespace rules on sources (no TABs allowed) etc.
>> Yes.  jcheck will be run on every push to any hotspot repo, just as always.
> 
> Great.
> 
> ---
> 
> Thanks for the answers.
> 
> -kto
> 
>> Paul
>>
>>> -kto
>>>
>>> On Jul 20, 2011, at 10:17 AM, Paul Hohensee wrote:
>>>
>>>> Some may have noticed new Hotspot repos on hg.openjdk.java.net.  We've
>>>> made the Hotspot project independent of any particular JDK project because Hotspot
>>>> delivers into multiple JDKs.  These new repos replace the ones under the jdk7
>>>> project for Hotspot development going forward.  They are
>>>>
>>>> hsx/hotspot-main
>>>>
>>>> This is the Hotspot integration repo and replaces jdk7/hotspot.
>>>>
>>>> hsx/hotspot-gc
>>>> hsx/hotspot-rt
>>>> hsx/hotspot-comp
>>>>
>>>> These are the Hotspot group repos and replace jdk7/hotspotgc, jdk7/hotspot-rt
>>>> and jdk7/hotspot-comp.
>>>>
>>>> We've also changed when we create repos for specific Hotspot versions.  For update
>>>> releases, we used to do it just before delivery into b01 of the update.  Now, we'll
>>>> do it when we bump the version number.  The version-specific repos will be used
>>>> as flow-through repos during promotion into various JDK master hotspot repos,
>>>> so when development on a version is done the corresponding version-specific repo
>>>> will contain the definitive source for that version.  The current Hotspot version repo
>>>> for hs22 was created just yesterday and is
>>>>
>>>> hsx/hsx22
>>>>
>>>> Paul
>>>>
>