Draft Repository Management

[Erik Trimble]

On 7/29/2011 9:29 AM, Jim Holmlund wrote:
>
>
> On 7/29/2011 1:46 AM, Seán Coffey wrote:
>> Poonam,
>>
>> 7u repos are best viewed from http://hg.openjdk.java.net/
>>
>> I've often wondered why the mercurial webserver doesn't show a 
>> sub-forest type view when using the link you've mentioned.  e.g 
>> http://hg.openjdk.java.net/jdk7u/jdk7u/jdk/ is the forest I'm using.
> As I read the doc
>     http://openjdk.java.net/projects/jdk7u/repos.html
>
> jdk7u/jdk7u is the master and people should not be pushing to it.  
> Erik said that the integration repo(s) to which we should push have 
> not yet been created.  It isn't clear to me if we will have just one 
> integration repo, or maybe different ones for core, client, hotspot, 
> etc.)
>
> - jjh
>

As far as I understand, jdk7u/jdk7u is analogous to the old jdk7/jdk7 
forest, and is the RE master which only the Gatekeepers should be 
pushing to.

There also will only be one forest (jdk7u/jdk7u-dev) for everyone to 
push fixes to (i.e just one Integration forest). There are a couple of 
reasons:

     (a) the number of fixes is expected to be significantly lower than 
the active development branch (jdk8)
     (b) we'd like to have developers test a bit more themselves before 
pushing into the Integration repository; that is, since fixes to 7u are 
lower-risk (i.e. we should be doing almost exclusively bugfixing, with 
the exception of Hotspot)
     (c) builds should be further apart than with jdk8, which allows for 
more time to QA the -dev repository and find any issues

All this adds up to making it simpler to have just a single development 
forest repository, rather than individual group forests. It also means 
we can dedicate more QA testing hardware to that single forest, rather 
than spread our resources over multiple forests.

Also, as we implement the Build Improvement project, full JDK forest 
builds will become *significantly* faster, which will allow us to build 
and test the entire jdk7u-dev forest frequently - ideally, every push 
from every developer to jdk7u-dev will require a full JDK build&test, 
but that's the goal; we'll see if that happens.


-- 
Erik Trimble
Java Platform Group Infrastructure
Mailstop:  usca22-317
Phone:  x67195
Santa Clara, CA
Timezone: US/Pacific (UTC-0800)