How to disable nexus-staging-maven-plugin in sub-modules

Question

I'm looking into replacing the maven-deploy-plugin with the nexus-staging-maven-plugin.

Now some of the sub-modules of my project (e.g. integration test modules) are not to be deployed to the Nexus server. I used to disable the deployment of these modules via the "maven.deploy.skip" property. I cannot find anything comparable for the nexus-staging-maven-plugin, though. Is there another way for skipping single modules from deployment using this plug-in?

I also tried to bind the plug-in to the pseudo phase "none" as described here, but examining the effective POM, there is still the injected execution of the plug-in (I assume that's due to the way how it replaces the existing deploy plug-in).

Answer 1

The easiest way I found to deal the limitations of nexus-staging-maven-plugin is to isolate any module you do not want to deploy into a separate Maven profile, and exclude it when a deploy occurs. Example:

<profile>
    <id>no-deploy</id>
    <!--
    According to https://github.com/sonatype/nexus-maven-plugins/tree/master/staging/maven-plugin
    skipNexusStagingDeployMojo may not be set to true in the last reactor module. Because we don't
    want to deploy our last module, nor a dummy module, we simply omit the relevant modules when
    a deploy is in progress.
    -->
    <activation>
        <property>
            <name>!deploy</name>
        </property>
    </activation>
    <modules>
        <module>test</module>
        <module>benchmark</module>
    </modules>
</profile>

In the above example, I avoid building and deploying the "test" and "benchmark" modules. If you want to run unit tests without deploying them, use separate runs:

mvn test
mvn -Ddeploy deploy

Answer 2

You can set the configuration property skipNexusStagingDeployMojo of a given submodule to true. See more configuration properties documented in the Nexus book chapter about deployment to staging.