Configuration of includedRegions in Jenkinsfile?

Question

How can I limit the scope of a Jenkins pipeline project to only be built if a file in specific subdirectory is changed using Jenkinsfile?

I have a singl

Answer 1

There is an open issue preventing proper function: https://issues.jenkins-ci.org/browse/JENKINS-36195

It has a workaround, which is to disable remote polling ([$class: 'DisableRemotePoll']):

checkout([$class: 'GitSCM',
  branches: [[name: "*/master"]],
  extensions: [
    [$class: 'PathRestriction', excludedRegions: '', includedRegions: '<fill me in with regex \n delimited, leave excludedRegions as empty>'],
    [$class: 'DisableRemotePoll']
  ],
  submoduleCfg: [],
  userRemoteConfigs: [[url: "<my git url>", credentialsId: "$GIT_KEY"]]])

Answer 2

This is not supported yet as this issue implies.