how to run github actions on pull request

This article provides guidance on configuring GitHub Actions to run only on pull requests, utilizing it for automated code testing, and establishes best practices for using GitHub Actions within pull requests.

How do I configure GitHub Actions to run only on pull requests?

To configure GitHub Actions to run only on pull requests, you will need to modify your .github/workflows/main.yml file. Within the on section of the workflow, add the following condition:

<code>pull_request:
  types: [opened, synchronize, reopened]</code>

This will ensure that the workflow only runs when a pull request is opened, synchronized, or reopened.

Can GitHub Actions be used to automatically test code changes in a pull request?

Yes, GitHub Actions can be used to automatically test code changes in a pull request. By using the pull_request_target keyword in your workflow file, you can trigger the workflow to run whenever there is a change to the target branch of the pull request.

Once the workflow is triggered, you can use the "Actions" tab in the pull request to view the results of the tests. If any of the tests fail, the pull request will be marked as "failed" and the reviewer will be notified.

What are the best practices for using GitHub Actions on pull requests?

Here are some best practices for using GitHub Actions on pull requests:

• Use lightweight workflows. The faster your workflows run, the less time it will take to get feedback on your pull requests.
• Use specific triggers. Only trigger workflows when necessary. For example, you might only want to run your tests suite when there are changes to the code that the tests cover.
• Use the pull_request_target keyword. This will ensure that the workflow runs against the target branch of the pull request, rather than the branch of the source repository.
• Use the "Actions" tab. The "Actions" tab in the pull request provides a convenient way to view the results of your workflows and identify any failed tests.

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