Lars Vogel discusses how to become an Eclipse committer by forking the Eclipse IDE source code from Git repositories and making contributions. The process involves cloning relevant repositories, making code changes, building with Maven and Tycho, and submitting pull requests for review. Vogel demonstrates how to build your own customized version of the Eclipse IDE by forking the platform aggregator repository and modifying configuration files.

1. How to become an Eclipse
committer in 20 minutes and
to fork the Eclipse IDE

2. Lars Vogel
Eclipse committer
Eclipse and Android developer
Company founder
Java Champion
vogella.com reaches 1.5
million readers per month

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4. Tradionally
the Eclipse
programming
model made it
easy to add
something on
top of Eclipse.

5. But what about changing
the Eclipse IDE or
framework?

6. New developers
It is Open Source,
how hard can it be?

7. This is
really
hard.

8. I use
IntelliJ
because
Eclipse
sucks

9. I hope
someone
fixes this
bug
because it
is really
bad.... for
me

10. A new age
Git
Tycho
CBI
Gerrit

11. Eclipse source
http://git.eclipse.org

12. Search box

13. Git clone
git clone git://git.eclipse.org/gitroot/e4/org.eclipse.e4.tools.git

14. You fix and you commit
(locally)

15. Now you
are
a
committer

16. All right, I go
and help
Debian in
this case..
But, your patch or
Gerrit request never
gets reviewed...

17. I use
IntelliJ
because
Eclipse
sucks

18. Or you can...

19. Fork you!
Yeah!

20. Eclipse Tycho

21. Repository
Plug-ins

22. Modules to build

23. Component pom.xml

24. Target
mvn -clean install

25. Lets start small
I build the
e4 tools

26. Reality
# Clone the releng repo
git clone
git://git.eclipse.org/gitroot/e4/org.eclipse.e4.releng.git
# Install the CBI build configuration
mvn -f org.eclipse.e4.releng/cbi/eclipse-parent/pom.xml
clean install
git clone
git://git.eclipse.org/gitroot/e4/org.eclipse.e4.tools.git
mvn -clean install

27. Simplification in its making
Bug 386114 - Avoid duplication of id and version in pom.xml
and MANIFEST
Bug 403237 - o.e.e4.tools cannot be build with "mvn clean
install"
Bug 361722 - [patch] Unable to install root level features into
product install

28. Build your own Eclipse IDE
All the cool kids are
forking
Eclipse these days

29. Build Eclipse IDE
# clone
git clone -b master --recurse-submodules
git://git.eclipse.org/gitroot/platform/eclipse.platform.releng.a
ggregator.git
git fetch origin
git merge origin/master
git pull --recurse-submodules
git submodule update
# fix manifest.mf to pom.xml versions
cd eclipse.platform.releng.aggregator/
mvn -Dtycho.mode=maven -Dmaven.repo.local=$
{WORKSPACE}/.repository
org.eclipse.tycho:tycho-versions-plugin:update-pom
# build
mvn clean install -Pno-bree-libs -Dmaven.test.skip=true

30. Your own Eclipse IDE build

31. Apply modification
Clone the corresponding repo
Create new repo at Github
Push your changes to Github and
merge them everytime before the
build

32. vogella Eclipse IDE build
Distribution:
http://download.vogella.com/kepler/I-Build/sdk
p2 repo
http://download.vogella.com/kepler/I-Build/

33. Demo provided by l33t labs
(L33tLabs.com)

34. Follow our CBI Build on Twitter
https://twitter.com/eclipsecbi

35. Where to go from here
http://wiki.eclipse.org/CBI Eclipse IDE CBI Build
http://www.vogella.com/articles/Git/article.html Git tutorial
http://www.vogella.com/articles/EGit/article.html EGit tutorial
http://www.vogella.com/articles/EclipseTycho/article.html EclipseTycho tutorial

36. For fhe love of Pete!I fix
this bug!

37. Thank you
For further questions:
Lars.Vogel@gmail.com
http://www.vogella.com
Twitter http://www.twitter.com/vogella
Google+ http://gplus.to/vogella