how to declare a Pipeline global var with named parameter

[Nicolas Geraud]

Hi,

I want to provide a global var on my brand new jenkins2

here is my function

// workflowLibs/vars/mavenBuild

def call(def url=null, def branch=null, def mvnArgs=["-U", "clean", "deploy"]) {

    boolean defaultScm = ( url == null || branch == null )
    node {

        stage "Checkout"

            if (defaultScm) {
                checkout scm
            } else {
                git url: "${url}", branch: "${branch}"
            }

        stage "Build"

            def mvnHome = tool 'MVN33'
            def mvnCommamd = ["${mvnHome}/bin/mvn"] + mvnArgs
            sh "${mvnCommamd.join(" ")}"
    }
}

The goal of this function is to be called in a Jenkinsfile like this

mavenBuild
mavenBuild mvnArgs: ["-X", "clean", "test"]
....

first syntax works as expected, but if I call my var with a parameter, it doesn't take account and always use default params.

Is it possible to create global var with default values and named parameter ?

I know I can use this syntax : https://github.com/jenkinsci/workflow-cps-global-lib-plugin/blob/master/README.md#define-more-structured-dsl

thanks.

[Nicolas Geraud]

Here is how to write my function :

def call(params) {

    def mvnArgs =  (params == null || params.mvnArgs == null) ? ["-U", "clean", "deploy"] : params.mvnArgs
    boolean defaultScm = ( params == null || params.url == null || params.branch == null )

    node {

        stage "Checkout"

        if (defaultScm) {
            checkout scm
        } else {

            git url: "${params.url}", branch: "${params.branch}"

        }

        stage "Build"

        def mvnHome = tool 'MVN33'

        def javaHome = tool 'JDK 8'
        def nodeHome = tool 'NodeJS 0.12.4'
        withEnv(["PATH+MAVEN=${mvnHome}/bin",
                 "PATH+NODE=${nodeHome}/bin",
                 "JAVA_HOME=${javaHome}"]) {

            def mvnCommamd = ["${mvnHome}/bin/mvn"] + mvnArgs
            sh "${mvnCommamd.join(" ")}"
        }
    }
}

I can call it like this :

mavenBuild()
mavenBuild(branch:"master", url:"github...", mvnArgs: ["-X", "clean", "verify"]

hope this can help.