I have written my first GitHub Action – bluehorndigital/setup-drupal. In my phpstan-drupal and drupal-check projects I have various GitHub Actions workflows that build a Drupal project via Composer.
There are actually a few quirks with changes in Drupal 9, so I made an action to simplify setting up a Drupal project.
So, if you are testing a package in your GitHub Action workflow – it will be rejected! It is a development release, technically.
There is another quirk, as well. If you use
drupal/core-dev-pinned to install development dependencies (ie: PHPUnit) you will get PHPUnit 9. This requires the
phpspec/prophecy-phpunit package or else you will receive a fatal error. It is documented in a change record, but it wasn't easily searchable when I first encountered it.
The setup-drupal action checks if you are installing Drupal 9 and includes this dependency for you.
I just updated phpstan-drupal to use this action: https://github.com/mglaman/phpstan-drupal/pull/171
I plan to provide an example of testing a Drupal module via Github Actions with this module with the CiviCRM Webform or CiviCRM Entity modules.