add-jenkins-param.groovy

// add-jenkins-param.groovy
// Adds a parameter to all jobs on a Jenkins instance.
// The parameter is then exposed as an environment variable.
import hudson.model.*
 
key   = 'GEM_SOURCE'
value = 'http://rubygems.delivery.puppetlabs.net'
desc  = 'The Rubygems Mirror URL'

for(job in Hudson.instance.items) {

    println("[ " + job.name + " ] setting " + key + "=" + value)

    newParam = new StringParameterDefinition(key, value, desc)
    paramDef = job.getProperty(ParametersDefinitionProperty.class)

    if (paramDef == null) {
        newArrList = new ArrayList<ParameterDefinition>(1)
        newArrList.add(newParam)
        newParamDef = new ParametersDefinitionProperty(newArrList)
        job.addProperty(newParamDef)
    }
    else {
        // Parameters exist! We should check if this one exists already!
        found = paramDef.parameterDefinitions.find{ it.name == key }
        if (found == null) {
            paramDef.parameterDefinitions.add(newParam)
        }
    }
    //job.save()
    println()
}