[JIRA] (JENKINS-61778) build job won't trigger if filled in for loop

nils.gerke@digitalwerk.net (JIRA)

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Apr 2, 2020, 6:22:02 AM4/2/20

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Nils Gerke created an issue

Jenkins /

JENKINS-61778

build job won't trigger if filled in for loop

Issue Type:	Bug
Assignee:	Unassigned
Components:	_unsorted
Created:	2020-04-02 10:21
Priority:	Minor
Reporter:	Nils Gerke

I found parallel do behave differently when using a for loop or an each loop when filling the list.

 
                                                                def sub_jobs = [:]
    for (platform in selected_platforms) {
        sub_jobs[platform] = {
            build job:  job_name,
                parameters: [
                    string(name: 'Platform', value: platform),
                    string(name: 'Upstream Project Build Number', value: BUILD_NUMBER)
                ], wait: true
        }
    }
parallel sub_jobs
 
                                                            

results in:

 
                                                                [Pipeline] parallel
[Pipeline] { (Branch: WIN10)
[Pipeline] { (Branch: U1604)
[Pipeline] build (Building Product) 
11:36:56  Scheduling project: Product
[Pipeline] build (Building Product)
11:36:56  Scheduling project: Product
11:37:01  Starting building: Product #37
11:37:01  Starting building: Product #37
 
                                                            

So only one platform is build in this case.

But an each loop works:

 
                                                                def sub_jobs = [:]
selected_platforms.each {
    sub_jobs[it] = {
        build job: job_name,
            parameters: [
                string(name: 'Platform', value: it),
                string(name: 'Upstream Project Build Number', value: BUILD_NUMBER)
            ], wait: true
    }
}
parallel sub_jobs
  
                                                            

 
                                                                [Pipeline] parallel
[Pipeline] { (Branch: WIN10)
[Pipeline] { (Branch: U1604)
[Pipeline] build (Building Product)
11:36:56  Scheduling project: Product
[Pipeline] build (Building Product)
11:36:56  Scheduling project: Product
11:37:01  Starting building: Product #38
11:37:01  Starting building: Product #39
 
                                                            

Running on Jenkins 2.222.1 Docker LTS Image

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m_winter@gmx.de (JIRA)

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Apr 11, 2020, 8:02:03 PM4/11/20

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Markus Winter commented on

JENKINS-61778

Re: build job won't trigger if filled in for loop

This is not a bug. The following will do the trick:

 
                                                                def sub_jobs = [:]
    for (platform in selected_platforms) {
        def pf = platform
        sub_jobs[pf] = {
            build job:  job_name,
                parameters: [
                    string(name: 'Platform', value: pf),
                    string(name: 'Upstream Project Build Number', value: BUILD_NUMBER)
                ], wait: true
        }
    }
parallel sub_jobs
 
                                                            

(See Pipeline Exampels)