Re: [eclipse-dev] Releng retrospective ...

[David M Williams <david_williams@xxxxxxxxxx>]

> I have a number of questions based on your document
and wasn't 
> sure where to post them, so I'll send them off here.

"Here" is not a bad choice, but in general let's
say to use the "talk page" (marked "Discussion" on
the wiki tab) then all such questions "stay with" the document
in an easy-to-find way (non-committers will need only a "bugzilla
account" to post there). 

> it was recommended that Platform "move some
things around" for the repository structure.  
> What was/is the recommended layout for the repository?
[and] Then continued on to 
> casually mention refactoring repositories. Is the
thought/implication that repositories 
> (in general) should be more aligned/segmented by
feature groups?

We never got to the point of discussing many details.
I mentioned the features as sort of a "worst case" measurement
but by no means do you have to have one feature per repository. You simply
need "architecturally consistent collections" in your repository
... where everything in the repo can be compiled, only by using other things
from that repo (and of course, the "results" from similarly consistent
"lower level" repositories). This is a little hard in some cases
at Eclipse Project, where there is a correspondence of "committership"
to "repository" and in some cases (at least in Eclipse Platform
history), some "committer groups" were intentionally formed by
"like minded interests" instead of "what compiled together".
There's also recommended "test bundle" structure, which I don't
know off the top of my head, but think is well documented in Maven books/blogs,
which help allow "test while you build". 

If you really want "expertise", I'd encourage
you to ask questions on the tycho-user mailing list. 

Hope my brief answers help, 





From:      
 Joseph D Carroll Jr
<jdsalingerjr@xxxxxxxxx>
To:      
 "General development
mailing list of the Eclipse project." <eclipse-dev@xxxxxxxxxxx>,

Date:      
 07/21/2013 12:30 PM
Subject:    
   Re: [eclipse-dev]
Releng retrospective ...
Sent by:    
   eclipse-dev-bounces@xxxxxxxxxxx

---

David-

Nice work with the document, I found it very informative!

In your conclusions you state "While
it is likely quite suitable for 'enterprise use' ... it requires a lot
of work to 'get right'.".  I am working on
basing our build infrastructure off of CBI, and have even requested a number
of things like the jar signer Than developed (which works great for us
too).

I have a number of questions based on your document and
wasn't sure where to post them, so I'll send them off here.

When working with the early prototype, it was recommended
that Platform "move some things around" for the repository structure.
 What was/is the recommended layout for the repository?

You stated "PDE provides a way to 'get the source',
based on features. Tycho/Maven does not." Then continued on to casually
mention refactoring repositories. Is the thought/implication that repositories
(in general) should be more aligned/segmented by feature groups?

I also have some questions about the binary comparator
and the differences in jar structure.  But I do not understand enough
about what the differences are in the first place, so I will look into
that and then get back to you.

In all, my project currently uses CVS with a CruiseControl
build and JNLP deployment.  My goal is to move the project to Git
with Hudson and p2, so there is a lot I can learn from the experiences
at Eclipse which will help me convince people this is the right direction
and provide a high level blueprint to get there.

Thanks,

JD


On Thu, Jul 18, 2013 at 12:26 PM, David M Williams <david_williams@xxxxxxxxxx>
wrote:
Eclipse Project (Platform) committers,

I wanted to let you know I've written down a "retrospective"
of our move to CBI and am ready now to give you a chance to review and
add anything I have missed or correct any errors I've made. (It is too
long already ... but ... you know me :) 

http://wiki.eclipse.org/Platform-releng/Kepler_2013_PDE_to_CBI_retrospective

I consider this "still under development and being
reviewed" (as I note at the top of that wiki page). I'll set an arbitrary
date of  Wednesday 7/24 to get your additions/corrections, if any,
and then I will remove that "Note" at the top of the wiki page.

As with all "retrospectives" this is just intended to be just
a "dump" of information while it is fresh in our minds ... nothing
definitive or judgmental. 

If nothing else, it helps me remember things I still have to finish :)
... and who knows, the next time we change build systems (maybe we will
after another 10 years? :) it might come in handy to have our experiences
written down. 

Thanks, 


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