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RE: [cross-project-issues-dev] Best practices on versioning

pack 200 should not require any work from you. It is something that you run over the update site once the content is ready. It is not like an extra step that you have to worry about in your build.

Doug Schaefer <DSchaefer@xxxxxxx>
Sent by: cross-project-issues-dev-bounces@xxxxxxxxxxx

04/28/2006 09:14 AM

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RE: [cross-project-issues-dev] Best practices on versioning

To take some heat off EMF J, we do the same in the CDT. What is best practices for some is not as good for others. The CDT does not have a release engineering team. In fact, I am the CDT release engineer. Since I have many hats, I do not have much time to spend on writing build scripts and am reluctant to change them. So for us, not using the releng tools and simply tagging and building all the plugins every build was easy to do, it works, and I don’t have the time right now to change them. This is also why I am against the pack200 thing BTW.
Now as the next simultaneous release rolls around again next year, I think this is one area where we could really reduce duplication in the projects and streamline things. I would like to propose that we have one release engineering team, with maybe participants from various projects, working on one single set of build scripts and a single simultaneous build. This would solve a lot of problems, including the lag we have between Platform build and Callisto release, and it would make it easier for us to line up with “best practices”. On the negative side, there is much more chance for these builds to be busted as API changes occur in the lower bits, but then I think that would also force the lower bit teams and the upper bit teams to communicate more.
Any, just a thought and sorry for not following “best practices”.
Doug Schaefer, QNX Software Systems
Eclipse CDT Project Lead, Tools PMC member

From: cross-project-issues-dev-bounces@xxxxxxxxxxx [mailto:cross-project-issues-dev-bounces@xxxxxxxxxxx] On Behalf Of David M Williams
Friday, April 28, 2006 12:23 AM
[cross-project-issues-dev] Best practices on versioning


I thought I'd post this here, for a "wider" education (either mine or others :)

I've noticed one project (EMF) that appears to version all their features and all their plugins, in the 4th place qualifier field,
to match the date and time of their builds. On the one hand, this is nice to tell what goes-with-what in directory lists, but its counter to
"best practices" on feature and plugin versioning, right?  Shouldn't features and plugin versions (and qualifiers) change only when the
code really changes? Perhaps EMF really does change each and every one of their features and plugins each build ...
nah, I'm sure they don't do that. So .. is this a long term plan? Just a short term tactic?

I thought I'd ask here, publically, in case there is a reason for this I'm not aware of ... so we can all be educated.
The problem this strategy poses is that with something like update manager, it means users/developers might end up (re) installing code that
hasn't really changed. So .. sure EMF is a tiny project :) ... but, I hope this doesn't become widespread practice, or the new
versioning rules won't accomplish as much as it could. For one documented scheme on versioning rules see
We in WTP are attempting to following this too.
Do other projects have other, different schemes?

And, I hope well known, I don't mean to "pick" on EMF .. I have not really looked at many others projects schemes, but just noticed
EMF's practice, and thought I'd ask here in the interest of  development in the open.

Thanks in advance for any clarifications.

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