WIP: detect external merge request refs (GitHub pull requests)
What does this MR do?
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/65139
This MR adds a way to detect whether a push to a mirror repository contains refs that are related to external merge requests such as GitHub pull requests.
When a push event is received we detect whether the ref is in the form of refs/pull/xxx and we attempt to create a pipeline with external_merge_request source.
It should also be possible to use only: merge_requests if the project is set to be a mirror of an external repo, for CI/CD only purpose.
Does this MR meet the acceptance criteria?
Conformity
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Changelog entry for user-facing changes, or community contribution. Check the link for other scenarios. -
Documentation created/updated or follow-up review issue created -
Code review guidelines -
Merge request performance guidelines -
Style guides -
Database guides -
Separation of EE specific content
Performance and testing
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Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process. -
Tested in all supported browsers
Security
If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:
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Label as security and @ mention @gitlab-com/gl-security/appsec -
The MR includes necessary changes to maintain consistency between UI, API, email, or other methods -
Security reports checked/validated by a reviewer from the AppSec team