How to Add to Existing Properties In Groovy Script?

To add to existing properties in a Groovy script, you can simply use the syntax object.property = value to assign a new value to an existing property or create a new property if it doesn't already exist. This allows you to dynamically add or update properties within an object or class at runtime. Additionally, you can also use the put method to add key-value pairs to a map object. By using these methods, you can easily modify and extend the properties of your objects in Groovy scripts.

How to add imports to a groovy script?

To add imports to a Groovy script, you can use the import keyword followed by the package or class that you want to import.

Here is an example of how to add imports to a Groovy script:

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// Importing a single class
import com.example.MyClass

// Importing an entire package
import com.example.*

// Using the imported class
def myObject = new MyClass()

You can also use the @Grab annotation to automatically download and import dependencies from a Maven repository.

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@Grab('org.apache.commons:commons-lang3:3.9')
import org.apache.commons.lang3.StringUtils

def result = StringUtils.capitalize("hello")
println result

Keep in mind that imports should be added at the beginning of the script, before any other code.

How to add comments in groovy script?

To add comments in a Groovy script, use the double forward slash (//) for single-line comments or enclose the comment in /* and */ for multi-line comments.

Example of single-line comments:

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// This is a single-line comment
def message = "Hello, World" // This is another single-line comment

Example of multi-line comments:

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/*
This is a multi-line comment
It can span multiple lines
*/
def number = 42

Comments are used to provide explanations, document the code, or temporarily disable a part of the script. They are ignored by the compiler and not executed when the script runs.

How to add custom scripts to an existing pipeline in groovy script?

To add custom scripts to an existing pipeline in a Jenkinsfile written in Groovy script, you can use the script block within a stage to execute custom scripts. Here's an example of how you can do this:

1. Open your existing Jenkinsfile in a text editor.
2. Locate the stage where you want to add the custom script.
3. Add a script block within the stage and write your custom script inside it. For example:

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pipeline {
    agent any
    stages {
        stage('Example Stage') {
            steps {
                script {
                    sh 'echo "This is a custom script"'
                    sh 'echo "Performing some custom actions"'
                }
            }
        }
    }
}

1. Save the Jenkinsfile and commit the changes to your source code repository.
2. Trigger a build in Jenkins to execute the updated pipeline with the custom script included.

By adding custom scripts in this way, you can extend the functionality of your pipeline to include specific actions or commands that are not predefined in Jenkins.