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  1. Jenkins
  2. JENKINS-40182

Branch indexing does not poll its generated subitems

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      The attached Jenkinsfile performs an additional checkout step from "some other" location than the Jenkinsfile repo.

      When used in a multibranch pipeline, changes to the "other" repo are not detected by the branch indexer. A normal pipeline job using the same Jenkinsfile will correctly poll for changes to this other repo.

      Test Repo Structure

      - root-folder
         |- branches
             |- branch-a
                 |- foo.txt
                 |- Jenkinsfile
             |- branch-b
                 |- bar.txt
                 |- Jenkinsfile (same as branch-a)
         |- other-lib
             |- baz.txt
      

      Pipeline Job (correct polling)

      1. Build once, observe checkout from branch-a and other-lib as per Jenkinsfile
      2. Modify other-lib/baz.txt in SCM
      3. Observe polling log detect changes to other-lib:

      Received SCM poll call on master for PipelinePollTest on 02-Dec-2016 08:17:01
      https://192.168.0.31/svn/base/branches/personal/jamie/jenkins-bug-repro/branches/branch-a is at revision 43,233
      Received SCM poll call on master for PipelinePollTest on 02-Dec-2016 08:17:01
      https://192.168.0.31/svn/base/branches/personal/jamie/jenkins-bug-repro/other-lib is at revision 43,235
        (changed from 43,234)
      Done. Took 47 ms
      Changes found
      

      Multibranch Pipeline Job (branch indexing)

      1. Initial branch indexing detects both branches and generates subjobs / schedules them
      2. Modify other-lib/baz.txt in SCM
      3. Observe indexing log does not detect this change

      Started by timer
      Opening conection to https://192.168.0.31/svn/base/branches/personal/jamie/jenkins-bug-repro/branches/
      Checking directory /branches/personal/jamie/jenkins-bug-repro/branches@HEAD
      Checking candidate branch /branches/personal/jamie/jenkins-bug-repro/branches/branch-a@43233
      Met criteria
      No changes detected in branch-a (still at 43233)
      Checking candidate branch /branches/personal/jamie/jenkins-bug-repro/branches/branch-b@43233
      Met criteria
      No changes detected in branch-b (still at 43233)
      Finished: SUCCESS
      

      Expected Result
      For the behaviour to be consistent between these two job types - the branch indexer should be able to detect these changes considering comment on JENKINS-34737 stating this polling behaviour is subsumed into the indexing. (https://issues.jenkins-ci.org/browse/JENKINS-34737?focusedCommentId=262423&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-262423)

            Unassigned Unassigned
            jfemia James Femia
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              Created:
              Updated:
              Resolved: