[FIXED] Return multiple parameters from a function using if else in jenkins pipeline script

Issue

I'm facing an error while trying to return multiple parameters from a function using if else in Jenkins pipeline script. Below is my test pipeline.

def envi, host

def build_func(envi, host){
  if (env.ENVIRONMENT == 'dev') {
    envi = 'dev'
    host = 'devhost'
  }
  else if(env.ENVIRONMENT == 'prod') {
    envi = 'prod'
    host = 'prodhost'
  }
  return [envi, host]
}

pipeline {
agent any
environment {
  def (envir,hostname) = build_func(env,host)
}

stages {
  stage('Hello') {
    steps {
      echo "Hello World\n${envir}\n${env.ENVIRONMENT}"
    }
  }
 }
}

When I build this, getting the below error,

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: WorkflowScript: 18: Expected string literal @ line 18, column 7. def (envir,hostname) = build_func(env,host)

Solution

I don't think you can return multiple values and create Environment variables like that within an environment block. As a workaround, maybe you can do something like this.

environment {
  envir = "${build_func(env,host)[0]}"
  hostname = "${build_func(env,host)[1]}"
}

Answered By - ycr
Answer Checked By - Katrina (JavaFixing Volunteer)