Running JDK pre-submit testing on GitHub

[Remi Forax]

It's a very fine idea,
will give it a try once i get some spare cycles.

Rémi

----- Mail original -----
> De: "Robin Westberg" <robin.westberg at oracle.com>
> À: "jdk-dev" <jdk-dev at openjdk.java.net>
> Envoyé: Mercredi 16 Septembre 2020 15:05:40
> Objet: Running JDK pre-submit testing on GitHub

> Hi all,
> 
> When making changes to the JDK, you almost always want to run a number of tests
> before submitting the change for review through a pull request. The test
> selection naturally depends on the nature of the change, but at the very least
> you often want to make sure that the “tier1” tests complete successfully on
> different platforms. This, however, can be easier said than done, depending on
> whether you have access to some correctly configured idle machines where you
> can execute them.
> 
> To improve the situation, we have looked into making it simple to run this type
> of testing with GitHub Actions [1] using the free tier [2] available to
> everyone working with open source repositories. (GitHub Actions, for those of
> you unfamiliar with it, allows you to run up to 20 parallell jobs on virtual
> machines [3] provided by GitHub).
> 
> After a bit of experimenting, I believe that we have arrived at something that
> is ready for any interested OpenJDK contributor to try out. It currently runs
> the “tier1” group of tests on Linux, Windows and macOS on a “fastdebug” build.
> Here’s an example of what it looks like:
> https://github.com/rwestberg/jdk/actions/runs/257434343
> 
> If you would like to try this out yourself, simply add the file
> https://github.com/rwestberg/jdk/blob/submit_gh_actions/.github/workflows/submit.yml
> with the same name and path to any branch in a local repository and push it to
> your personal fork. Within a few seconds, a new job should appear in the
> Actions tab in the GitHub web UI for your personal fork where you can view the
> progress.
> 
> If this turns out to be something that contributors find useful, we can commit
> such a file to the JDK main-line repository. This will then be readily
> available for any branch you push to your your personal fork.
> 
> Best regards,
> Robin
> 
> [1] https://github.com/features/actions
> [2]
> https://docs.github.com/en/actions/getting-started-with-github-actions/about-github-actions#usage-limits
> [3]
> https://docs.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners