Reference repos and the multibranch pipeline plugin

[Jørgen Sølvernes Sandnes]

Hi!

I've enjoyed trying out the pipeline and multibranch pipeline plugin, and it looks like a nice improvement to prior pipeline support. I think the maintainers have done a very nice job here :)

On my project we (sadly) have a large git repo (several GBs) to work with, and this has led to long build times. I previously solved this by using a reference repository which changed scm checkout time from several minutes down to a few seconds. 

I have tried to find a way to do the same with the multibranch pipeline plugin, but with no luck. 

Does anyone know if it's possible to do this?

Best regards,

Jørgen

[Mark Waite]

The https://github.com/MarkEWaite/jenkins-bugs/blob/JENKINS-36507-honorRefspec/Jenkinsfile file shows an example using a reference repository from within a Jenkinsfile.  I use that repository frequently in two different multi-branch pipeline jobs to confirm that bugs which were fixed in the git plugin previously are still fixed.

The multi-branch pipeline jobs which use that repository are defined at https://github.com/MarkEWaite/docker/blob/lts-with-plugins/ref/jobs/jenkins-bugs-multibranch-pipeline/config.xml and at https://github.com/MarkEWaite/docker/blob/lts-with-plugins/ref/jobs/jenkins-bugs-multibranch-pipeline-no-localbranch/config.xml .

Hope that helps,

Mark Waite

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[Alex Ehlke]

Thanks but simply getting the Jenkinsfile itself incurs a potentially costly clone that we can't seem to configure at all: https://issues.jenkins-ci.org/browse/JENKINS-33273