Answers: <p>One could use the <a href="https://wiki.jenkins.io/display/JENKINS/PollSCM+Plugin" rel="nofollow noreferrer">PollSCM plugin</a>.</p>
  
  <p><a href="https://jenkins.io/doc/book/pipeline/syntax/" rel="nofollow noreferrer">https://jenkins.io/doc/book/pipeline/syntax/</a></p>
  
  <pre><code>triggers { pollSCM('H 4/* 0 0 1-5') }
  </code></pre>
  
  <blockquote>
    <p>The pollSCM trigger is only available in Jenkins 2.22 or later.</p>
  </blockquote>
  
Answers: CC BY-SA 3.0
Answers: 2017-10-20T19:56:33.313Z
Answers: 2017-10-20T19:56:33.313Z
Answers: 030
Body: <p>We have a gitlab enterpise that host multiple project in one repo. Something like:</p>
  
  <pre><code>Repo/
    projectA/
    projectB/
    projectC/
  </code></pre>
  
  <p>We have three pipelines that will run base on changes(whitelist region) when polling. They will start polling when received a <code>curl</code> via the <code>notifyCommit?</code> in another job.</p>
  
  <p>However, the pipeline can only work on <code>branch</code> that is run previously. </p>
  
  <p>I have also try to use parameters $branch on <code>branch to build</code> and update the <code>curl</code> job with parameters like:</p>
  
  <p><code>http://ourjenkins/git/notifyCommit?url=git_url.git&amp;branch=$GIT_BRANCH</code></p>
  
  <p>but, it still will only poll the last run branch. </p>
  
  <p>Does anyone know how we can have the declarative pipeline to poll multiple branches and run only base on whitelist directory changes?</p>
  
Comments: CC BY-SA 3.0
Comments: 2017-11-21T18:13:52.377Z
Comments: Have you tried using a multibranch pipeline job? See https://jenkins.io/doc/book/pipeline/multibranch/
Comments: mghicks
Comments: CC BY-SA 4.0
Comments: 2018-11-16T15:18:20.060Z
Comments: Yes, I definitely recommend the multibranch pipeline plugin. You can also filter by branch name if there is a common naming convention.
Comments: Preston Martin
Tags: <jenkins><continuous-integration><jenkinsfile>
Title: Declarative Jenkins Pipeline to Poll different branches?
UserDisplayName: Zac Kwan
ThreadText: # Declarative Jenkins Pipeline to Poll different branches?
  
  (Asked by: username_0 on 2017-08-23)
  
  We have a gitlab enterpise that host multiple project in one repo. Something like:
  
  ```
  Repo/
    projectA/
    projectB/
    projectC/
  
  ```
  
  We have three pipelines that will run base on changes(whitelist region) when polling. They will start polling when received a `curl` via the `notifyCommit?` in another job.
  
  However, the pipeline can only work on `branch` that is run previously.
  
  I have also try to use parameters $branch on `branch to build` and update the `curl` job with parameters like:
  
  `http://ourjenkins/git/notifyCommit?url=git_url.git&branch=$GIT_BRANCH`
  
  but, it still will only poll the last run branch.
  
  Does anyone know how we can have the declarative pipeline to poll multiple branches and run only base on whitelist directory changes?
  
  **Tags:** jenkins, continuous-integration, jenkinsfile
  
  > **Comments:**
  > **username_1**: Have you tried using a multibranch pipeline job? See https://jenkins.io/doc/book/pipeline/multibranch/  
  > **username_2**: Yes, I definitely recommend the multibranch pipeline plugin. You can also filter by branch name if there is a common naming convention.  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_3 on 2017-10-20. Score: 1
  
  One could use the [PollSCM plugin](https://wiki.jenkins.io/display/JENKINS/PollSCM+Plugin).
  
  <https://jenkins.io/doc/book/pipeline/syntax/>
  
  ```
  triggers { pollSCM('H 4/* 0 0 1-5') }
  
  ```
  
  > The pollSCM trigger is only available in Jenkins 2.22 or later.
  
  
  ---
  
  