Groovy Postbuild: Run script only on matrix parent

[Sverre Moe]

Would it possible to have Groovy Postbuild to the script only run on matrix parent? Would be a great feature to get in this plugin.

I have a groovy script I want to run once after all matrix configurations have been triggered and completed.

I need to check the Cause not being an UpstreamCause, but all matrix builds Cause are of class UpstreamCause, while the parent Cause could be Upstream, UserId or SCM.

Created a feature request in Jenkins Jira:

https://issues.jenkins-ci.org/browse/JENKINS-27317