Passing array as argument in Jenkins pipelie - jenkins

Question

I have a shared library that accept parameters i setup to compress files into a tar. The jenkinspipline looks like this.
stage("Package"){
steps{
compress_files("arg1", "arg2")
}
}
The shared library compress_file looks like this
#!/usr/bin/env groovy
// Process any number of arguments.
def call(String... args) {
sh label: 'Create Directory to store tar files.', returnStdout: true,
script: """ mkdir -p "$WORKSPACE/${env.PROJECT_NAME}" """
args.each {
sh label: 'Creating project directory.', returnStdout: true,
script: """ mkdir -p "$WORKSPACE/${env.PROJECT_NAME}" """
sh label: 'Coping contents to project directory.', returnStdout: true,
script: """ cp -rv ${it} "$WORKSPACE/${env.PROJECT_NAME}/." """
}
sh label: 'Compressing project directory to a tar file.', returnStdout: true,
script: """ tar -czf "${env.PROJECT_NAME}.tar.gz" "${env.PROJECT_NAME}" """
sh label: 'Remove the Project directory..', returnStdout: true,
script: """ rm -rf "$WORKSPACE/${env.PROJECT_NAME}" """
}
New requirement is to use an array instead of updating the argument values. How or can we pass an arrayname in the jenkinsfile stage

Answer 1

Yes it’s possible, from Jenkinsfile you can define the array inside stage() or outside stage() and make that use of, like
In declarative pipeline :
def files = ["arg1", "arg2"] as String[]
pipeline {
agent any
stages {
stage("Package") {
steps {
// script is optional
script {
// you can manipulate the variable value of files here
}
compress_files(files)
}
}
}
}
In scripted pipeline:
node() {
//You can define the value here as well
// def files = ["arg1", "arg2"] as String[]
stage("Package"){
def files = ["arg1", "arg2"] as String[]
compress_files(files)
}
}
And in the shared library, the method will be like
// var/compress_files.groovy
def call(String[] args) {
args.each {
// retrive the value from ${it} and proceed with your logic
}
}
or
def call(String... args) {
args.each {
// retrive the value from ${it} and proceed with your logic
}
}