GitHub pull request builds now available on builds.apache.org
Posted on: 2014-10-02 13:00:00+00:00
The ASF Infrastructure team is happy to announce that you can now set up jobs on builds.apache.org to listen for pull requests to github.com/apache repositories, build that pull request’s changes, and then comment on the pull request with the build’s results. This is done using the Jenkins Enterprise GitHub pull request builder plugin, generously provided to the ASF by our friends at CloudBees. We've set up the necessary hooks on all github.com/apache repositories that are up as of Wednesday, Oct 1, 2014, and will be adding the hooks to all new repositories going forward.
Here’s what you need to do to set it up:
- Create a new job, probably copied from an existing job.
- Make sure you’re not doing any “mvn deploy” or equivalent in the new job - this job shouldn’t be deploying any artifacts to Nexus, etc.
- Check the "Enable Git validated merge support” box - you can leave the first few fields set to their default, since we’re not actually pushing anything. This is just required to get the pull request builder to register correctly.
- Set the “GitHub project” field to the HTTP URL for your repository - i.e.,"http://github.com/apache/incubator-brooklyn/"- make sure it ends with that trailing slash and doesn’t include .git, etc.
- In the Git SCM section of the job configuration, set the repository URL to point to the GitHub git:// URL for your repository - i.e., git://github.com/apache/incubator-brooklyn.git.
- You should be able to leave the “Branches to build” field as is - this won’t be relevant anyway.
- Click the “Add” button in “Additional Behaviors” and choose "Strategy for choosing what to build”. Make sure the choosing strategy is set to “Build commits submitted for validated merge”.
- Uncheck any existing build triggers - this shouldn’t be running on a schedule, polling, running when SNAPSHOT dependencies are built, etc.
- Check the “Build pull requests to the repository” option in the build triggers.
- Optionally change anything else in the job that you’d like to be different for a pull request build than for a normal build - i.e., any downstream build triggers should probably be removed, you may want to change email recipients, etc.
- Save, and you’re done!
Now when a pull request is opened or new changes are pushed to an existing pull request to your repository, this job will be triggered, and it will build the pull request. A link will be added to the pull request in the list of builds for the job, and when the build completes, Jenkins will comment on the pull request with the build result and a link to the build at builds.apache.org.
In addition, you can also use the "Build when a change is pushed to GitHub" option in the build triggers for non-pull request jobs, instead of polling - Jenkins receives notifications from GitHub whenever one of our repositories has been pushed to. Jenkins can then determine which jobs use that repository and the branch that was pushed to, and trigger the appropriate build.
If you have any questions or problems, please email email@example.com or open a BUILDS JIRA at issues.apache.org.
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