gmaven plugin: how to set property in pom.xml for external groovy script

Question

I\'m running an external groovy script via gmaven plugin in pom.xml. The external script is say \'myscript.groovy\'.

I want to provide some parameters/arguments to m

Answer 1

There are two ways you can bind and retrieve properties. One would be through plugin-specific properties.

  org.codehaus.gmaven
  gmaven-plugin
  
    
      generate-resources-execute-groovyscript
      generate-resources
      
        execute
      
      
        
          ${installation.dir}
        
        ${pom.basedir}/src/main/groovy/configure.groovy
      
    
  

These would be retrieved in the script like project.properties['installation.dir'].

GMaven isn't maintained anymore (I was the last maintainer). If you want to use versions of Groovy newer than 2.0.0, have a look at GMavenPlus. Here's the equivalent POM:

  org.codehaus.gmavenplus
  gmavenplus-plugin
  1.5
  
    
      
        execute
      
      generate-resources
    
  
  
    false
    
      
        installation.dir
        ${installation.dir}
      
    
    
      
    
  
  
    
      org.codehaus.groovy
      groovy-all
      2.4.3
      runtime
    
  

Retrieval in this case would be like properties['installation.dir']. I know the file:/// is annoying. I've removed the requirement for that in the next release.

For GMaven or GMavenPlus, if you choose the plugin properties approach, you will need to set the value elsewhere either with something like this in your project POM

  C:\someDir

Or include it in your call like mvn -Dinstallation.dir=C:\someDir

The other option is to bind to project level properties directly. You would put it in your project level properties or in your call, like mentioned above, and don't include in the plugin . If you go this route, you'd access in your script by project.properties['installation.dir'] for either GMaven or GMavenPlus (also take out for GMavenPlus in this case).

If this doesn't work for you, try renaming installation.dir to something like installationDir. I can't remember offhand if periods were problematic.