examples/gradle/scala.gradle

//
// This Gradle build file illustrates how to process Scala
// applications, including the Scala runtime.
// Usage:
//     gradle -b scala.gradle proguard
//

// Tell Gradle where to find the ProGuard task.

buildscript {
    repositories {
        flatDir dirs: '../../lib'
    }
    dependencies {
        classpath ':proguard'
    }
}

// Define a ProGuard task.

task proguard(type: proguard.gradle.ProGuardTask) {

    // You should probably import a more compact ProGuard-style configuration
    // file for all static settings, but we're specifying them all here, for
    // the sake of the example.
    //configuration 'configuration.pro'

    // Specify the input jars, output jars, and library jars.

    injars  'in.jar'
    injars  '/usr/local/java/scala-2.9.1/lib/scala-library.jar'
    //injars  '/usr/local/java/scala-2.9.1/lib/scala-compiler.jar', filter: '!META-INF/MANIFEST.MF'
    //injars  '/usr/local/java/scala-2.9.1/lib/jline.jar', filter: '!META-INF/MANIFEST.MF'
    outjars 'out.jar'

    libraryjars "${System.getProperty('java.home')}/lib/rt.jar"
    //libraryjars '/usr/local/java/ant/lib/ant.jar'
    //...

    // Ignore some compiler artefacts.

    dontwarn 'scala.**'

    // Save the obfuscation mapping to a file, so you can de-obfuscate any stack
    // traces later on. Keep a fixed source file attribute and all line number
    // tables to get line numbers in the stack traces.
    // You can comment this out if you're not interested in stack traces.

    printmapping 'out.map'
    renamesourcefileattribute 'SourceFile'
    keepattributes 'SourceFile,LineNumberTable'

    // Preserve all annotations.

    keepattributes '*Annotation*'

    // You can print out the seeds that are matching the keep options below.

    //printseeds 'out.seeds'

    // Preserve all public applications.

    keepclasseswithmembers 'public class * { \
        public static void main(java.lang.String[]); \
    }'

    // Preserve some classes and class members that are accessed by means of
    // introspection.

    keep 'class * implements org.xml.sax.EntityResolver'

    keepclassmembers 'class * { \
        ** MODULE$; \
    }'

    keepclassmembernames 'class scala.concurrent.forkjoin.ForkJoinPool { \
        long eventCount; \
        int  workerCounts; \
        int  runControl; \
        scala.concurrent.forkjoin.ForkJoinPool$WaitQueueNode syncStack; \
        scala.concurrent.forkjoin.ForkJoinPool$WaitQueueNode spareStack; \
    }'

    keepclassmembernames 'class scala.concurrent.forkjoin.ForkJoinWorkerThread { \
        int base; \
        int sp; \
        int runState; \
    }'

    keepclassmembernames 'class scala.concurrent.forkjoin.ForkJoinTask { \
        int status; \
    }'

    keepclassmembernames 'class scala.concurrent.forkjoin.LinkedTransferQueue { \
        scala.concurrent.forkjoin.LinkedTransferQueue$PaddedAtomicReference head; \
        scala.concurrent.forkjoin.LinkedTransferQueue$PaddedAtomicReference tail; \
        scala.concurrent.forkjoin.LinkedTransferQueue$PaddedAtomicReference cleanMe; \
    }'

    // Preserve some classes and class members that are accessed by means of
    // introspection in the Scala compiler library, if it is processed as well.

    //keep 'class * implements jline.Completor'
    //keep 'class * implements jline.Terminal'

    //keep 'class scala.tools.nsc.Global'

    //keepclasseswithmembers 'class * { \
    //    <init>(scala.tools.nsc.Global); \
    //}'

    //keepclassmembers 'class * { \
    //    *** scala_repl_value(); \
    //    *** scala_repl_result(); \
    //}'

    // Preserve all native method names and the names of their classes.

    keepclasseswithmembernames includedescriptorclasses:true, 'class * { \
        native <methods>; \
    }'

    // Preserve the special static methods that are required in all enumeration
    // classes.

    keepclassmembers allowshrinking:true, 'enum * { \
        public static **[] values(); \
        public static ** valueOf(java.lang.String); \
    }'

    // Explicitly preserve all serialization members. The Serializable interface
    // is only a marker interface, so it wouldn't save them.
    // You can comment this out if your application doesn't use serialization.
    // If your code contains serializable classes that have to be backward 
    // compatible, please refer to the manual.

    keepclassmembers 'class * implements java.io.Serializable { \
        static final long serialVersionUID; \
        static final java.io.ObjectStreamField[] serialPersistentFields; \
        private void writeObject(java.io.ObjectOutputStream); \
        private void readObject(java.io.ObjectInputStream); \
        java.lang.Object writeReplace(); \
        java.lang.Object readResolve(); \
    }'

    // Your application may contain more items that need to be preserved; 
    // typically classes that are dynamically created using Class.forName:

    // keep 'public class mypackage.MyClass'
    // keep 'public interface mypackage.MyInterface'
    // keep 'public class * implements mypackage.MyInterface'

}