git clone git://github.com/dcrec1/rspec-maven-plugin.git
cd rspec-maven-plugin
mvn install
Just put this in your pom.xml:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>rspec-maven-plugin</artifactId>
<executions>
<execution>
<id>test</id>
<phase>test</phase>
<goals>
<goal>spec</goal>
</goals>
</execution>
</executions>
</plugin>