Does the Maven Versions Plugin read rules also from classpath?

Question

The Maven Versions Plugin supports the defintion of rules to customize the version resolution process for goals as versions:display-plugin-updates or versions:display-dependency-updates. The location of the rules file can be specified by the rulesUri and the functionality behind this is provided by Maven Wagon.

Therefore I would like to know if it is also supported to provide a rule set within a Jar? I would like to one rule set for multiple projects.

Answer 1

A patch by me has been released with version 2.5 of the Versions Maven Plugin

Now it is possible to create a version rules file and to place it on the classpath.

This example below shows how to reference a rules file called rules.xml which is provided in a jar on the classpath:

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>versions-maven-plugin</artifactId>
    <version>2.7</version>
    <executions>
        <execution>
            <id>default-cli</id>
            <configuration>
                <rulesUri>classpath:///rules.xml</rulesUri>
            </configuration>
        </execution>
    </executions>
    <dependencies>
        <dependency>                                
            <groupId>your.organisation</groupId>
            <artifactId>rulesspec</artifactId>
            <version>1234</version>
        </dependency>
    </dependencies>
</plugin>

Please keep in mind that the provided URI must start with classpath://.