Gradle Growl Notifications

init.gradle

// File: ~/.gradle/init.gradle
class GrowlNotifyListener extends BuildAdapter {
    void buildFinished(BuildResult result) {
        if (result.failure) {
            growlNotify "Gradle [${result?.gradle?.rootProject?.project?.name}]: failure", result.failure.message, true
        } else {
            growlNotify "Gradle [${result?.gradle?.rootProject?.project?.name}]: finished", 'Build successful'
        }
    }   

    void growlNotify(title, message = 'No message', sticky = false) {
        def cmd = [ 
            'growlnotify',  // Replace with your local path.
            "-t",
            title,
            "-m",
            message,
            sticky ? '-s' : ''
        ]
        cmd.execute()
    }        
}

def listener = new GrowlNotifyListener()
gradle.addBuildListener listener