Groovy Maven Plugins - eclipse

Question

I am trying to run Spock tests and perhaps some Groovy scripts, currently for a Groovy app, but in future for Java projects as well.
I am really confused about which plugins should be used and how to best configure them, aka least amount of code.
I found numerous articles showing Maven XML settings for gmaven-plugin, gmaven-runtime and groovy-eclipse plugin, which seems like it works under IDEA as well.
I have been using Eclipse for a while and now am trying out IDEA Community Edition.
One of the confusions stems from the fact that I was able to add following dependency to my POM, in addition to having Gmaven in section.
<dependency>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>gmaven-plugin</artifactId>
<version>1.5</version>
</dependency>
I understand that the question is a bit vague... but so is documentation on the matter :)

Answer 1

For fully Maven-Groovy projects read this post Building your Groovy 2.0 projects with Maven
I have sample project with Maven, Java and Spock tests. There is one requirement here. Spock tests needs to have names like FooTest.groovy.
My configuration looks like this
<plugin>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>gmaven-plugin</artifactId>
<version>1.5</version>
<configuration>
<providerSelection>2.0</providerSelection>
<source/>
</configuration>
<executions>
<execution>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.codehaus.gmaven.runtime</groupId>
<artifactId>gmaven-runtime-2.0</artifactId>
<version>1.5</version>
<exclusions>
<exclusion>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>2.2.1</version>
</dependency>
</dependencies>
</plugin>
Fully working project is here: https://github.com/mariuszs/java-spock-test-sample