Q: How can I save an artifact into Nexus Repository using a groovy pipeline? - jenkins

Question

My question is about saving artifacts into a repository. Especially, I am trying to upload into the Nexus Repository artifacts and release versions after the execution of a build pipeline for a Maven project (through Jenkins).
The only way that I want to do so, is just by using a pipeline written in Groovy so to integrate with Jenkins.
Note: I want the artifact version number to be always the same and the version number to change dynamically (not manually).
Is there a command or code generally which enables me to do that?

Answer 1

You are on the wrong level, this should happen in maven.
In pom.xml you need. (more here)
<distributionManagement>
<snapshotRepository>
<id>nexus-snapshots</id>
<url>http://localhost:8081/nexus/content/repositories/snapshots</url>
</snapshotRepository>
</distributionManagement>
and then in the plugins section
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
<executions>
<execution>
<id>default-deploy</id>
<phase>deploy</phase>
<goals>
<goal>deploy</goal>
</goals>
</execution>
</executions>
</plugin>
and you should be able to just do mvn clean deploy from your pipeline.
EDIT
There is another way with Nexus Artifact Uploader plugin
nexusArtifactUploader {
nexusVersion('nexus2')
protocol('http')
nexusUrl('localhost:8080/nexus')
groupId('sp.sd')
version("2.4.${env.BUILD_NUMBER}")
repository('NexusArtifactUploader')
credentialsId('44620c50-1589-4617-a677-7563985e46e1')
artifact {
artifactId('nexus-artifact-uploader')
type('jar')
classifier('debug')
file('nexus-artifact-uploader.jar')
}
artifact {
artifactId('nexus-artifact-uploader')
type('hpi')
classifier('debug')
file('nexus-artifact-uploader.hpi')
}
}

Answer 2

As #hakamairi already said, it is not recommended to re-upload artifacts with the same version to Nexus repository, Maven is built around the idea that an artifact's GAV always corresponds to a unique artifact.
However, if you want to allow re-deployment, you need to set the deployment policy of a release repository to "allow redeploy", then you can redeploy the same version. You cannot do that without allowing on repository side.
And for deploying to Nexus repo, you can use either Nexus Platform Plugin or Nexus Artifact Uploader.

Answer 3

ADDITIONAL SOLUTION THAT ALSO WORKS
I executed it manually and I exported the result of Nexus call. The result was the following command. This command need to be inserted inside the Jenkins pipeline as a Groovy code:
nexusPublisher nexusInstanceId: 'nexus', nexusRepositoryId: 'maven-play-ground', packages: [[$class: 'MavenPackage', mavenAssetList: [[classifier: '', extension: '', filePath: '**PATH_NAME_OF_THE_ARTIFACT**.jar']], mavenCoordinate: [artifactId: '**YOUR_CUSTOM_ARTIFACT_ID**', groupId: 'maven-play-ground', packaging: 'jar', version: '1.0']]], tagName: '**NAME_OF_THE_FILE_IN_THE_REPOSITORY**' }
In the field of filePath we need to insert the path and the name of the artifact.jar file.
In the field of artifactId we need to insert the custom (in this occasion for mine artifact) artifact id
In the field of tagName we need to insert the custom name of the directory from inside the Nexus Repository
This is a solution that can be done automatically without manual changes and edits. Once we have created the directory in Nexus repository this is going to be executed without any issue and without the need of changing the version number.
Note: also we need to enable re-deploy feature from inside the Nexus Repository settings.