Donating a mature project to Eclipse

Copyright VMware Inc. 2011. Licensed under the Eclipse Public License

Donating a Mature Project to Eclipse

Glyn Normington

Tuesday, 22 March 2011

Agenda

•Code

• Intellectual property

• Infrastructure

•Community


Code


Origins

•Spring Engine

•SpringSource Application Platform

•SpringSource dm Server

•Eclipse Virgo


Interlude


Was dm Server Mature?

• Users in production on v1 & v2

• Principled design

• Clean code

• Extensive test suite (with CI)

• Based on, and influencing, standards


Why donate it?

• Remove adoption inhibitors

• GPL

• Single vendor

• Collaborate on usability

• Build

• Application development tooling


Why Eclipse.org?

• Permissive license

• Governance & IP process

• Built on Equinox & Eclipse

• EclipseRT needed a runtime


End of Interlude.Back to the Code


Moving the Project

2007 2008 2009 2010 2011 2012 2013

ß/milestone GA SR EOL

1.0

2.0

2.1 (Virgo)

3.0


Version Control

• git

• 22 repositories

• GPL history was pruned

• Back link for archaeology

• External collaboration

• github


Intellectual Property


Licensing• SpringSource

dm Server

• GPL + commercial

• Eclipse Virgo

• EPL

• OSGi Web Container

• Apache

• Gemini Web

• EPL + Apache


Eclipse IP Process• Scrutiny

• Source code

• License

• Pedigree

• Contribution & dependencies


IP Process Costs

•Raised 200 CQs

•Deleted 2 dependencies

•Tweaked 3rd party licensing


IP Process Benefits• Assured license/pedigree

• Recorded dependencies

• Improved licensing, e.g.

• JWebUnit LGPL

• mime.types file in Spring


IP Process Improvements• Clarify:

• Downstream distribution

• “Works with” dependencies

• Policy for build/test dependencies

• Automate release checks (WIP)


Infrastructure


Build/Test Infrastructure

•Moved CI to hudson.eclipse.org

•Tool issues

•False positives

•Sharing vs stability

•Virtualisation?


Search Infrastructure

• Private OpenGrok

• Too much code to remember

• 22 git repos

• No search at eclipse.org

• Public OpenGrokhttp://virgo-opengrok.springsource.org/


http://virgo-opengrok.springsource.org/

http://virgo-opengrok.springsource.org/

Community


Moving the Community• Generally willing

• Incompatibilities

• Package names

• Dropped function

• Migration to Virgo 2.1

• Minimised

• Migration notesTuesday, 22 March 2011

Effect on Committers• JIRA replaced by bugzilla + Acunote

• Distributed sprint planning

• Concurrent sprints


SummaryWas it worth it?


Benefits of Donating

✓Increase adoption

✓Permissive license

✓Multi-vendor

• Improve usability

• Build

✓Application development tooling


Benefits of Eclipse.org

✓Code

✓Intellectual property

• Infrastructure

✓Community


And Finally...


Thanks to...

• Project histories - wikipedia

• HP Garage - http://www.hp.com

• Road signs - Alexander Baxevanis

• OOXML demo - Martin Bekkelund

• Rugby scrum - Clumsy Jim


http://www.hp.com

http://www.hp.com

Related Sessions• Building web apps with EclipseRT

• Yesterday, but come to the Virgo BoF

• Snaps, modular & dynamic web apps with Virgo

• Tomorrow 10:40-11:00, Ballroom D

• Virgo and RT playing together

• Tomorrow 11:10-11:30, Ballroom BC

• Virgo BoF

• Shooting for tomorrow 7:30-8:30pm

• Hands on with Gemini & Virgo

• Thursday 10:30-12:30, Ballroom D


Donating a mature project to Eclipse

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