Avoid redundant jobs between merge request pipelines and their target branch’s

GitLab CI/CD
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Hello :wave:

Problem to solve

I want to avoid redundant jobs between merge request pipelines and their target branch’s.

Let’s say

  • I only allow up-do-date MR branches to be merged.
  • the merge request pipeline has a test job which outputs coverage data
  • I would like to display a test coverage report badge

The badge would need a static branch name, so I cannot refer to MR’s.
I could specify the target branch name, but then this would require the job to run in a pipeline on this branch.
If I did this, then two identical test job would then run: the last merge request pipeline’s, and the target branch pipeline’s.

Is there a way the target branch pipeline could somewhat refer to the merge request pipeline’s job, so that it doesn’t run twice?

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