How to retrieve Jenkins build parameters using the Groovy API?

Question

I have a parameterized job that uses the Perforce plugin and would like to retrieve the build parameters/properties as well as the p4.change property that\'s set by the Perf

Answer 1

I've just got this working, so specifically, using the Groovy Postbuild plugin, you can do the following:

def paramText
def actionList = manager.build.getActions(hudson.model.ParametersAction)
if (actionList.size() != 0)
{
  def pA = actionList.get(0)
  paramText = pA.createVariableResolver(manager.build).resolve("MY_PARAM_NAME")
}

Answer 2

For resolving a single parameter (I guess what's most commonly needed), this is the simplest I found:

build.buildVariableResolver.resolve("myparameter")

in your Groovy System script build step.

Answer 3

The following can be used to retreive an environment parameter:

println System.getenv("MY_PARAM") 

Answer 4

thanks patrice-n! this code worked to get both queued and running jobs and their parameters:

import hudson.model.Job
import hudson.model.ParametersAction
import hudson.model.Queue
import jenkins.model.Jenkins

println("================================================")
for (Job job : Jenkins.instanceOrNull.getAllItems(Job.class)) {
    if (job.isInQueue()) {
        println("------------------------------------------------")
        println("InQueue " + job.name)

        Queue.Item queue = job.getQueueItem()
        if (queue != null) {
            println(queue.params)
        }
    }
    if (job.isBuilding()) {
        println("------------------------------------------------")
        println("Building " + job.name)

        def build = job.getBuilds().getLastBuild()
        def parameters = build?.getAllActions().find{ it instanceof ParametersAction }?.parameters
        parameters.each {
            def dump = it.dump()
            println "parameter ${it.name}: ${dump}"
        }
    }
}
println("================================================")