Do not sync stable branches for public commits
What does this MR do?
If a new commit is pushed to a stable branch on canonical, it will trigger push mirroring to security.
Now we have a race where both canonical and security wants to trigger a FOSS merge train ending up into a diverged branch.
This commit will check that the current commit is not available on canonical before triggering a security FOSS merge train
Closes gitlab-org/release-tools#358
Screenshots
Does this MR meet the acceptance criteria?
Conformity
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Changelog entry -
Documentation (if required) -
Code review guidelines -
Merge request performance guidelines -
Style guides -
Database guides -
Separation of EE specific content
Availability 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