IdeaModule

plugins {
    id 'java'
    id 'idea'
}

//for the sake of this example, let's introduce a 'performanceTestCompile' configuration
configurations {
  performanceTestCompile
  performanceTestCompile.extendsFrom(testCompile)
}

dependencies {
  //performanceTestCompile "some.interesting:dependency:1.0"
}

idea {

  //if you want parts of paths in resulting files (*.iml, etc.) to be replaced by variables (Files)
  pathVariables GRADLE_HOME: file('~/cool-software/gradle')

  module {
    //if for some reason you want to add an extra sourceDirs
    sourceDirs += file('some-extra-source-folder')

    //and some extra test source dirs
    testSources.from(file('some-extra-test-dir'))

    //and some extra resource dirs
    resourceDirs += file('some-extra-resource-dir')

    //and some extra test resource dirs
    testResources.from(file('some-extra-test-resource-dir'))

    //and hint to mark some of existing source dirs as generated sources
    generatedSourceDirs += file('some-extra-source-folder')

    //and some extra dirs that should be excluded by IDEA
    excludeDirs += file('some-extra-exclude-dir')

    //if you don't like the name Gradle has chosen
    name = 'some-better-name'

    //if you prefer different output folders
    inheritOutputDirs = false
    outputDir = file('muchBetterOutputDir')
    testOutputDir = file('muchBetterTestOutputDir')

    //if you prefer different SDK than the one inherited from IDEA project
    jdkName = '1.6'

    //put our custom test dependencies onto IDEA's TEST scope
    scopes.TEST.plus += [ configurations.performanceTestCompile ]

    //if 'content root' (as IDEA calls it) of the module is different
    contentRoot = file('my-module-content-root')

    //if you love browsing Javadoc
    downloadJavadoc = true

    //and hate reading sources :)
    downloadSources = false
  }
}

plugins {
    id 'java'
    id 'idea'
}

idea {
  module {
    iml {
      //if you like to keep *.iml in a secret folder
      generateTo = file('secret-modules-folder')

      //if you want to mess with the resulting XML in whatever way you fancy
      withXml {
        def node = it.asNode()
        node.appendNode('iLoveGradle', 'true')
        node.appendNode('butAlso', 'I find increasing pleasure tinkering with output *.iml contents. Yeah!!!')
      }

      //closure executed after *.iml content is loaded from existing file
      //but before gradle build information is merged
      beforeMerged { module ->
        //if you want skip merging exclude dirs
        module.excludeFolders.clear()
      }

      //closure executed after *.iml content is loaded from existing file
      //and after gradle build information is merged
      whenMerged { module ->
        //you can tinker with Module
      }
    }
  }
}