Obtain GitSCM from a checkout step in pipeline

[Ullrich Hafner]

In one of my plugins I am using the GitSCM instance of a job to analyze the associated Git repository. This works for a lot of cases (input: a Jenkins run):

- For FreeStyle jobs I get the instance from AbstractProject.getSCM()

- For Pipelines jobs I get the instance from the job ((SCMTriggerItem) job).getSCMs()

- For Pipelines jobs with CpsScmFlowDefinition I get the instance from the definition ((CpsScmFlowDefinition) definition).getScm()

But when I use the following pipeline code in an integration test to check out a specific SHA-1 of a repository, then none of these options work to get the SCM. Is in such a case no SCM instance stored in the run or job? 

(I get called with a GitSCM instance in a CheckoutListener, thus the instance actually is created) 

checkout([$class: 'GitSCM', branches: [[name: '28af63def44286729e3b19b03464d100fd1d0587' ]], userRemoteConfigs: [[url: '" + REPOSITORY_URL + "']]])"

In the run I can find BuildData, GitTagAction and ScmRevisionState instances, but no one seems to link to the GitSCM.

[Jesse Glick]

You could possibly reconstruct this information from `ArgumentsAction`. Probably more reliable to use `CheckoutListener` though.

[Jesse Glick]

Or directly check `WorkflowRun.getSCMs()`. Not currently exposed as an API via `Run` (`getChangeSets()` is a bit different).

[Ullrich Hafner]

Or directly check `WorkflowRun.getSCMs()`. Not currently exposed as an API via `Run` (`getChangeSets()` is a bit different).

Yes that works, thanks!