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Difference between revisions of "Lyo/ContributorsGettingStarted"

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= Contributing to Eclipse Lyo =
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This guide is to help you get started contributing to the Eclipse Lyo project.
 
This guide is to help you get started contributing to the Eclipse Lyo project.
  
== Git repositories ==
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== Getting started ==
 
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Lyo uses Git for source control.  Getting both EGit for Eclipse and the git command line tools are recommended.
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* [http://eclipse.org/egit/download/ EGit] team provider for git  or [http://git-scm.com/download git command line package].
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The Lyo project's Git [http://git.eclipse.org/c/lyo repositories].
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In order to get your commit merged into master, you need to follow a few steps.
  
== Gerrit and Lyo ==
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'''Before working on the code'''
  
Lyo uses Gerrit to accept, review and approve code contributions from the community.  Please see [Gerrit | the Eclipse Gerrit guide ] for information on configuring EGit or the command line to push to the Eclipse Gerrit instance.  
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* Register a [https://accounts.eclipse.org/ new Eclipse account]
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* Search the [https://bugs.eclipse.org/bugs/query.cgi?format=specific existing bug list]. Look for bugs with ANY status under LYO product and if none matches your problem, [https://bugs.eclipse.org/bugs/enter_bug.cgi?product=Lyo file a new bug] on Bugilla '''before working on your contribution'''.
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* If you want to discuss your idea before (and after) filing a bug, join the [https://dev.eclipse.org/mailman/listinfo/lyo-dev lyo-dev mailing list].
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* Accept and sign the [https://www.eclipse.org/legal/ECA.php ECA]. Instructions on how to sign are on the right side of the page.
  
== Lyo contribution process ==
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'''Developing a change'''
  
You're ready to contribute a bug fix or some new functionality to Lyo?  Great. Here's what you need to do:
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* [https://git.eclipse.org/r/#/admin/projects/?filter=lyo Find the corresponding Gerrit project] and clone it using the command to ''Clone with <code>commit-msg</code> hook''.
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* Create a new Git brach from <code>master</code> (best practice is to create a branch <code>b12345-gitignore</code> for a bug ''Bug 12345 .gitignore file missing'').
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* Make your changes to the code.
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* Make sure you update the license header of the files you modify.
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* '''Make a single commit containing all your changes.'''
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* Start the first line of your commit message with ''Bug 12345 -'' for a patch that is addressing ''Bug 12345''.
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* Make sure to [https://stackoverflow.com/questions/13457203/how-to-add-the-signed-off-by-field-in-the-git-patch include Singed-off-by] line in your commit message (by doing this, you are signing off on a [https://www.eclipse.org/legal/DCO.php Developer Certificate of Origin]). '''Commits without a Singed-off-by line are not accepted!'''
  
1 Make sure there is a [https://bugs.eclipse.org/bugs/enter_bug.cgi?product=Lyo Bugzilla bug] open for the work that you are doing.  Make a comment in the bug or on the [mailto:lyo-dev.org mailing list] that you want it assigned to you.
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<blockquote>If you have accidentally made more than one commit, you need to [https://stackoverflow.com/questions/5189560/squash-my-last-x-commits-together-using-git squash the commits]. If you need to update your commit (in case you forgot something or received a feedback you need to address), [https://www.atlassian.com/git/tutorials/rewriting-history#git-commit--amend amend your commit]. [More Git tips are on Lyo wiki] (https://wiki.eclipse.org/Lyo/GitTips)
1 Pull the latest Lyo code from the appropriate [http://git.eclipse.org/c/lyo Lyo git repository]
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</blockquote>
1 Code your change - make sure you update any copyright headers as needed.
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'''Submitting the change for review'''
1 Commit your change locally - all commits must include the Bugzilla number in the commit message
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1 Push the code to the appropriate Lyo Gerrit repository.
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1 Visit the [https://git.eclipse.org/r/ Gerrit review instance] and login
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1 Click on your new review request and add some reviewers
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  1 Add at least one of the project committers (fiedler.mf@gmail-dot-com or spadgett@us-dot-ibm-dot-com are good choices) as a reviewer
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  1 Add any others you think would be able to provide a valuable review
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1 Edit the Bugzilla bug tracking this work and add this statement (only if it is true!!):  "I wrote all this code and have the rights to contribute it to Eclipse under the eclipse.org web site terms of use."
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1 (Optional) send a notification to the lyo-dev mailing list that the change is ready for review.
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After the change is reviewed and approved, there is nothing more for you to do
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* Submit your commit for the review:
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* [http://www.vogella.com/tutorials/Gerrit/article.html#gerritreview_configuration Via Eclipse EGit]
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* Via the command line: <code>git push origin HEAD:refs/for/master</code>. [https://www.mediawiki.org/wiki/Gerrit/git-review git-review] is recommended for frequent users.
  
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See [https://git.eclipse.org/r/Documentation/intro-user.html Gerrit User Guide] for more information.
  
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== Eclipse IDE notice ==
  
Older instructions on using GitHub with Lyo can be found [Lyo/LyoGitHub | here ]
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You can import these projects in Eclipse, they should be loaded via the <code>File &gt; Import &gt; Maven &gt; Existing Maven Projects</code>. This will automatically create the <code>.project</code>, <code>.classpath</code> and <code>.setting</code> files from the <code>pom.xml</code> files. This will ensure the Eclipse project and the Maven POM are in sync. As a side effect, the Eclipse projects will be displayed using their Maven <code>artifactId</code>, not the parent folder name. So <code>org.eclipse.lyo.core</code> will be displayed as <code>oslc4j-core</code>.  In the future, we plan to ensure the eclipse project name and the artifactId are the same and will be avoiding the use of Java package-like names as project names, but these will be breaking changes and will need to be discussed beforehand.

Latest revision as of 09:04, 3 August 2017

Contributing to Eclipse Lyo

This guide is to help you get started contributing to the Eclipse Lyo project.

Getting started

In order to get your commit merged into master, you need to follow a few steps.

Before working on the code

  • Register a new Eclipse account
  • Search the existing bug list. Look for bugs with ANY status under LYO product and if none matches your problem, file a new bug on Bugilla before working on your contribution.
  • If you want to discuss your idea before (and after) filing a bug, join the lyo-dev mailing list.
  • Accept and sign the ECA. Instructions on how to sign are on the right side of the page.

Developing a change

  • Find the corresponding Gerrit project and clone it using the command to Clone with commit-msg hook.
  • Create a new Git brach from master (best practice is to create a branch b12345-gitignore for a bug Bug 12345 .gitignore file missing).
  • Make your changes to the code.
  • Make sure you update the license header of the files you modify.
  • Make a single commit containing all your changes.
  • Start the first line of your commit message with Bug 12345 - for a patch that is addressing Bug 12345.
  • Make sure to include Singed-off-by line in your commit message (by doing this, you are signing off on a Developer Certificate of Origin). Commits without a Singed-off-by line are not accepted!
If you have accidentally made more than one commit, you need to squash the commits. If you need to update your commit (in case you forgot something or received a feedback you need to address), amend your commit. [More Git tips are on Lyo wiki] (https://wiki.eclipse.org/Lyo/GitTips)

Submitting the change for review

  • Submit your commit for the review:
  • Via Eclipse EGit
  • Via the command line: git push origin HEAD:refs/for/master. git-review is recommended for frequent users.

See Gerrit User Guide for more information.

Eclipse IDE notice

You can import these projects in Eclipse, they should be loaded via the File > Import > Maven > Existing Maven Projects. This will automatically create the .project, .classpath and .setting files from the pom.xml files. This will ensure the Eclipse project and the Maven POM are in sync. As a side effect, the Eclipse projects will be displayed using their Maven artifactId, not the parent folder name. So org.eclipse.lyo.core will be displayed as oslc4j-core. In the future, we plan to ensure the eclipse project name and the artifactId are the same and will be avoiding the use of Java package-like names as project names, but these will be breaking changes and will need to be discussed beforehand.

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