How can I do string to integer conversion in a Jenkinsfile?

Question

I have the following in my Jenkinsfile:

pipeline {
    agent none
    environment {
        timeout_mins = 1
    }
    options {
        timeout(time: "$         


        

Answer 1

As @burnettk says it’s a limitation with the options block. It's not the most elegant but you can use timeout as a step e.g.

pipeline {
    agent none
    environment {
        timeout_mins = 1
    }
    stages {
        stage("test print") {
            steps {
                timeout(time: env.timeout_mins.toInteger(), unit: 'MINUTES') {
                    echo "timeout_mins: ${env.timeout_mins}"
                    sh "sleep 120"
                }
            }
        }
    }
}

Answer 2

it's not the conversion that's failing, it's just that you can't reference environment variables in the options block.

this also fails (nullpointer exception):

pipeline {
    agent none
    environment {
        timeout_mins = 'MINUTES'
    }
    options {
        timeout(time: 1, unit: env.timeout_mins)
    }
    stages {
        stage("test print") {
            steps {
                echo "timeout_mins: ${env.timeout_mins}"
                sh "sleep 120"
            }
        }
    }
}

this works:

def timeout_in_minutes = 1

pipeline {
    agent none
    options {
        timeout(time: timeout_in_minutes, unit: 'MINUTES')
    }
    stages {
        stage("test print") {
            steps {
                echo "timeout_in_minutes: ${env.timeout_in_minutes}"
                sh "sleep 120"
            }
        }
    }
}