"Run also for matrix parent" with groovy-postbuild doesn't work when called via template-project plugin.
This is caused as ProxyPublisher doesn't supporr MatrixAggregatable and doesn't trigger aggregation processes of publishers.

(original post)

Would it be possible to have Groovy Postbuild to only run the script on matrix parent?

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