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  1. Jenkins
  2. JENKINS-42751

Add option to not build already build job.



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      Background: We have a number of Jenkins top-level jobs that uses (and shares) other jobs as sort-of subroutines. To control the overall flow we use the Jenkins Parameterized Trigger Plugin. The top-level jobs then gather test reports, build reports etc. from the sub-builds and conveniently publishes them in one go. It's working really well.

      Problem at hand: Each of the top-level jobs are started with a number of parameters, and only a selection of these are passed on to the sub-jobs. For some sub-jobs, the parameters are the same as they were some time ago, when the sub-job was last called from this top-level job, but our top-level script isn't aware of this. In essence, we waste build time, building the sub-job again with the same parameters.

      In a perfect world the Parameterized Trigger Plugin. would have an option like 

      • Do not rebuild job if identical parameters (and configuration unchanged).

      which would perform the following steps:

      1. Compare the build-parameters of all kept builds of the given job, to the current parameters.
      2. If the job-configuration is unchanged since the found job was build, setup environmental variable to point to the old job that was found above.
      3. If job not found or the job-configuration has been changed since the found job was build, perform the build as usual.



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            • Assignee:
              huybrechts huybrechts
              fsteff Flemming Steffensen
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