あまり本質的な対処ではない

build.gradle

apply plugin: 'groovy'
apply plugin: 'idea'

sourceCompatibility = 1.8
version = '1.0'
group = 'hoge.piyo'

repositories {
    mavenCentral()
}

dependencies {
    compile 'org.codehaus.groovy:groovy-all:2.3.2'
    testCompile group: 'junit', name: 'junit', version: '4.11'
}

idea.project.ipr {
    withXml {xml ->
        def root = xml.node

        def component = root.appendNode('component', [name : 'GradleSettings'])
        def option = component.appendNode('option', [name : 'linkedExternalProjectsSettings'])
        def setting = option.appendNode('GradleProjectSettings')
        ['distributionType' : 'DEFAULT_WRAPPED',
                'externalProjectPath' : '$PROJECT_DIR$',
                'gradleHome' : '$USER_HOME$/.gvm/gradle/1.12'].each {name, value ->
            setting.appendNode('option', [name : name, value : value])
        }
        setting.appendNode('option', [name : 'modules'])
            .appendNode('set')
            .appendNode('option', [value : '$PROJECT_DIR$'])
    }
}