Jenkins: how to get specific dependency version in pom.xml via readMavenPom or mvn help:evaluate?

Question

Already read a ton of pages and howtos and learnt that readMavenPom returns a Model object. It's quite easy to get root values, but how can I get a specific dependency version?

Using mvn help:evaluate doesn't help either: I don't know what to evaluate to get the info.

Can anyone give some advice?

Made a lot of tests but I actually totally ignore what should I evaluate.

Answer 1

Model object contains all the information related to dependencies as well:

pipeline{
    
    agent{label "master"}
    stages{
        stage('1'){
            steps{
                script{
                    def pom = """
                    <project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
                             http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.passfailerror</groupId>
    <artifactId>some-artifact</artifactId>
    <version>1.0.0</version>

    <dependencies>
        <dependency>
            <groupId>com.dependency.one</groupId>
            <artifactId>artifact-name1</artifactId>
            <version>1.0</version>
        </dependency>
        <dependency>
            <groupId>com.dependency.two</groupId>
            <artifactId>artifact-name2</artifactId>
            <version>2.0</version>
        </dependency>
        </dependencies>
        </project>
                    """
                    
                    writeFile file:"pom.xml", text:pom
                    def model = readMavenPom file:"pom.xml"
                    
                    echo model.getDependencies().findAll{it.artifactId == "artifact-name2"}.first().getVersion()
                    echo model.getDependencies().findAll{it.groupId == "com.dependency.one"}.first().getVersion()
                }
            }
        }
    }
    
}

You can easily find version of each dependency entry by artifactId, groupId or anything you want.