CODEWITHSUNDEEP
jenkins-pipelinejenkins-groovy
baliman
baliman

Reputation: 620

Jenkins pipeline can not access array

I am having problems accessing environment variable in my shell of the Jenkins pipeline. How can I iterate over the array elements in my sh. See code below

def getArray(){
  return ['Item1', 'Item2', 'Item3']
}

pipeline {
    agent any

    environment {
      APP = getArray()
    }

    stages {
        stage('Initialize') {
            steps {
                sh '''
                    for var in "${APP[@]}"   // does not work
                    do
                      echo "value : ${var}"  // How to echo this value i.e. Item1,Item2,Item3
                    done                    
                '''
            }
        }
    }
}

Upvotes: 0

Views: 824

Answers (1)

Altaf
Altaf

Reputation: 3076

The env variable automatically gets cast to the string type. So you can't store a value of an array type in the environment variable.Whatever is assiged to environmental variable is converted to toString()

You can use different options to solve this purpose by either giving a , separated string and use a split function to extract values.
You can also use tokenize(",") method to produce a list of elements which are separated by ,.

pipeline {
    agent any
    environment {
      APP="Item1, Item2, Item3"
    }
    stages {
        stage('Hello') {
            steps {
                script{
                     env.APP.tokenize(",").each { item ->
                        echo "$item"
                    }
                    // OR //
                    APP = env.APP.split(",")
                    for (item in APP) {
                        echo "${item}"
                    }   
                }
            }
        }
    }
}

Upvotes: 1

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