From 80555678dff0b685c425e4bbcf26ba236d126e2b Mon Sep 17 00:00:00 2001
From: WonderCsabo <kozakcsabi@gmail.com>
Date: Fri, 31 Oct 2014 19:01:14 +0100
Subject: [PATCH] Add custom exclude filter to ProGuardMojo

With this option the user can exclude any file from the ProGuard input.
---
 .../plugins/android/configuration/Proguard.java  |  6 ++++++
 .../phase04processclasses/ProguardMojo.java      | 16 ++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/src/main/java/com/jayway/maven/plugins/android/configuration/Proguard.java b/src/main/java/com/jayway/maven/plugins/android/configuration/Proguard.java
index f9dbd1a1f..71bbbda68 100644
--- a/src/main/java/com/jayway/maven/plugins/android/configuration/Proguard.java
+++ b/src/main/java/com/jayway/maven/plugins/android/configuration/Proguard.java
@@ -27,6 +27,7 @@ public class Proguard
     private String[] jvmArguments;
     private Boolean filterMavenDescriptor;
     private Boolean filterManifest;
+    private String customFilter;
     private Boolean includeJdkLibs;
     private String[] options;
     private Boolean attachMap;
@@ -65,6 +66,11 @@ public Boolean isFilterMavenDescriptor()
     {
         return filterMavenDescriptor;
     }
+    
+    public String getCustomFilter()
+    {
+        return customFilter;
+    }
 
     public Boolean isFilterManifest()
     {
diff --git a/src/main/java/com/jayway/maven/plugins/android/phase04processclasses/ProguardMojo.java b/src/main/java/com/jayway/maven/plugins/android/phase04processclasses/ProguardMojo.java
index 3d0e531ed..7cfaf1a23 100644
--- a/src/main/java/com/jayway/maven/plugins/android/phase04processclasses/ProguardMojo.java
+++ b/src/main/java/com/jayway/maven/plugins/android/phase04processclasses/ProguardMojo.java
@@ -62,6 +62,7 @@ public class ProguardMojo extends AbstractAndroidMojo
      *    &lt;proguardJarPath&gt;someAbsolutePathToProguardJar&lt;/proguardJarPath&gt;
      *    &lt;filterMavenDescriptor&gt;true|false&lt;/filterMavenDescriptor&gt;
      *    &lt;filterManifest&gt;true|false&lt;/filterManifest&gt;
+     *    &lt;customFilter&gt;filter1,filter2&lt;/customFilter&gt;
      *    &lt;jvmArguments&gt;
      *     &lt;jvmArgument&gt;-Xms256m&lt;/jvmArgument&gt;
      *     &lt;jvmArgument&gt;-Xmx512m&lt;/jvmArgument&gt;
@@ -192,6 +193,17 @@ public class ProguardMojo extends AbstractAndroidMojo
 
     @PullParameter( defaultValue = "true" )
     private Boolean parsedFilterManifest;
+    
+    /**
+     * You can specify a custom filter which will be used to filter out unnecessary files from ProGuard input.
+     * 
+     * @see http://proguard.sourceforge.net/manual/usage.html#filefilters
+     */
+    @Parameter( property = "android.proguard.customfilter" )
+    private String proguardCustomFilter;
+    
+    @PullParameter
+    private String parsedCustomFilter;
 
     /**
      * If set to true JDK jars will be included as library jars and corresponding filters
@@ -534,6 +546,10 @@ private List< ProGuardInput > getProgramInputFiles()
         {
             globalInJarExcludes.addAll( MAVEN_DESCRIPTOR );
         }
+        if ( parsedCustomFilter != null )
+        {
+            globalInJarExcludes.addAll( Arrays.asList( parsedCustomFilter.split( "," ) ) );
+        }
 
         // we first add the application's own class files
         inJars.add( createProguardInput( projectOutputDirectory.getAbsolutePath() ) );