Pipeline is a SUBSET of Groovy, not a superset. There are things (like
iterators) that are not serializable, so they can't be used in a pipeline.
You can create a method that is marked with @NonCPS to do things that are
not serialized, but sometimes it is difficult to get back out what you need
without the full Groovy functionality. You need to switch to using C style
loops.
On Mon, Mar 13, 2017 at 7:26 AM 'Martin Schmude' via Jenkins Users <
jenkinsci-users@googlegroups.com> wrote:
> Hello,
>
> I have a freestyle job with one step of the kind "Execute Groovy Script".
> Its Groovy code is
>
> def x = ['a', 'b', 'c']
> println x
> x.each { println it }
>
>
> The output of this job is (not surprinsingly):
>
> [Test-Groovy2] $ groovy
> /var/lib/jenkins/workspace/Test-Groovy2/hudson3825239812036801886.groovy
> [a, b, c]
> a
> b
> c
> Finished: SUCCESS
>
>
> But if I create a pipeline job with the pipeline script set to the same
> Groovy code, its output is:
>
> [Pipeline] echo[a, b, c][Pipeline] echoa[Pipeline] End of PipelineFinished:
> SUCCESS
>
>
> The .each() gets the first element in the list and nothing more.
> What's going on here? I thought that pipeline scripts are just Groovy plus
> some pipeline DSL, but I seem to be wrong.
>
> BTW: my Jenkins is 2.27.
>
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