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  1. Jenkins
  2. JENKINS-51879

Scan Repository Trigger Periodically : configurable crontab (`spec`)

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      Description

      Currently we can only choose a period, which is then used to define a crontab (https://github.com/jenkinsci/cloudbees-folder-plugin/blob/7e6294bc48d4cddc89c129ceaf1ab6d352462425/src/main/java/com/cloudbees/hudson/plugins/folder/computed/PeriodicFolderTrigger.java#L117).

      For example: 1 day period => `H H 0 0 0` crontab:

      ```

      <triggers>
      <com.cloudbees.hudson.plugins.folder.computed.PeriodicFolderTrigger plugin="cloudbees-folder@6.4">
      <spec>H H * * *</spec>
      <interval>86400000</interval>
      </com.cloudbees.hudson.plugins.folder.computed.PeriodicFolderTrigger>
      </triggers>

      ```

       

      Feature request: Make `spec`/crontab configurable via GUI.

      Goal: re-scan only at night, because it can trigger a lot of builds, filling Jenkins build queue.

      Scenario:

      • Lots of pending PR on github
      • Jenkins config: build PR by merging target branch first
      • New commits on target branch

      => an automatic re-scan mid-day triggers a re-build of all pending PR, saturating the Jenkins cluster for may hours.

       

      What I tried:

      Manually edit the `config.xml` file, reloading the config from disk on Jenkins: Modification gets lost on next GUI save, overwritten by a static value determined from period.

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            • Assignee:
              dnusbaum Devin Nusbaum
              Reporter:
              thomas_deepomatic Thomas Riccardi
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              • Created:
                Updated: