Translate some ant to python

build/android/ant/apk-obfuscate.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!--
     Copyright (C) 2005-2008 The Android Open Source Project
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
 
          http://www.apache.org/licenses/LICENSE-2.0
 
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
 -->
 
-<project default="-dex">
+<project default="-obfuscate">
   <property name="verbose" value="false" />
   <property name="out.dir" location="${OUT_DIR}" />
   <!-- Output directories -->
   <property name="out.dir" value="bin" />
   <property name="out.absolute.dir" location="${out.dir}" />
   <property name="out.classes.absolute.dir" location="${out.dir}/classes" />
-  <property name="out.dexed.absolute.dir" location="${out.dir}/dexedLibs" />
   <property name="out.manifest.abs.file" location="${out.dir}/AndroidManifest.xml" />
 
   <!-- tools location -->
   <property name="sdk.dir" location="${ANDROID_SDK_ROOT}"/>
   <property name="target" value="android-${ANDROID_SDK_VERSION}"/>
   <property name="android.tools.dir" location="${sdk.dir}/tools" />
-  <property name="android.platform.tools.dir" location="${sdk.dir}/platform-tools" />
-
-  <property name="project.target.android.jar" location="${ANDROID_SDK_JAR}" />
-  <path id="project.target.class.path">
-    <pathelement location="${project.target.android.jar}" />
-  </path>
 
 
   <!-- jar file from where the tasks are loaded -->
   <path id="android.antlibs">
       <pathelement path="${sdk.dir}/tools/lib/anttasks.jar" />
   </path>
 
   <!-- Custom tasks -->
   <taskdef resource="anttasks.properties" classpathref="android.antlibs" />
 
-
-  <path id="javac.srcdirs.additional">
-    <filelist files="${ADDITIONAL_SRC_DIRS}"/>
-    <filelist files="${GENERATED_SRC_DIRS}"/>
-  </path>
-
   <!-- Classpath for javac -->
   <path id="javac.custom.classpath">
     <filelist files="${INPUT_JARS_PATHS}"/>
   </path>
 
-  <!--
-    TODO(cjhopman): This is wrong for proguard builds. In that case, it should be just the
-    obfuscated jar.
-  -->
-  <path id="out.dex.jar.input.ref">
-    <path refid="javac.custom.classpath"/>
-  </path>
-
-  <!-- compilation options -->
-  <property name="java.encoding" value="UTF-8" />
-  <property name="java.target" value="1.5" />
-  <property name="java.source" value="1.5" />
-  <property name="java.compilerargs" value="" />
-
-  <property name="source.dir" value="${SOURCE_DIR}" />
-  <property name="source.absolute.dir" location="${source.dir}" />
-  <property name="gen.absolute.dir" value="${out.dir}/gen"/>
-
-  <property name="dx" location="${android.platform.tools.dir}/dx" />
-
-  <property name="need.javac.fork" value="false" />
   <condition property="project.is.testapp" value="true" else="false">
     <equals arg1="${IS_TEST_APK}" arg2="1" />
   </condition>
 
-  <!--
-    Override the -compile target.
-    This target requires 'javac.custom.classpath' to be set to reference
-    of classpath to be used for javac. Also accepts custom path for
-    sources: 'javac.custom.sourcepath'.
-  -->
-  <!-- Compiles this project's .java files into .class files. -->
-  <target name="-compile">
-
-    <mkdir dir="${out.classes.absolute.dir}" />
-    <mkdir dir="${out.dexed.absolute.dir}" />
-    <delete>
-      <fileset dir="${out.classes.absolute.dir}" includes="**/*.class"/>
-    </delete>
-
-    <javac
-        bootclasspathref="project.target.class.path"
-        classpathref="javac.custom.classpath"
-        debug="true"
-        destdir="${out.classes.absolute.dir}"
-        encoding="${java.encoding}"
-        extdirs=""
-        fork="${need.javac.fork}"
-        includeantruntime="false"
-        source="${java.source}"
-        target="${java.target}"
-        verbose="${verbose}">
-      <src path="${source.absolute.dir}"/>
-      <src path="${gen.absolute.dir}"/>
-      <src>
-        <path refid="javac.srcdirs.additional"/>
-      </src>
-      <compilerarg value="-Xlint:unchecked"/>
-      <compilerarg line="${java.compilerargs}"/>
-    </javac>
-
-    <if condition="${project.is.testapp}">
-      <then>
-        <!-- get the project manifest package -->
-        <xpath input="${out.manifest.abs.file}"
-                expression="/manifest/@package" output="project.app.package" />
-        <property name="create.test.jar.file"
-          location="${CREATE_TEST_JAR_PATH}" />
-        <script language="javascript" src="${create.test.jar.file}"/>
-      </then>
-    </if>
-
-    <!-- Package all the compiled .class files into a .jar. -->
-    <jar
-      jarfile="${JAR_PATH}"
-      basedir="${out.classes.absolute.dir}"
-    />
-  </target>
-
   <property name="proguard.enabled" value="${PROGUARD_ENABLED}" />
   <property name="proguard.config" value="${PROGUARD_FLAGS}" />
 
   <!-- Obfuscate target
       This is only active in release builds when proguard.config is defined
       in default.properties.
 
   -->
   <!--
     Override obfuscate target to pass javac.custom.classpath to Proguard. SDK tools do not provide
     any way to pass custom class paths to Proguard.
    -->
-  <target name="-obfuscate" depends="-compile">
+  <target name="-obfuscate">
+    <if condition="${project.is.testapp}">
+      <then>
+        <!-- get the project manifest package -->
+        <xpath input="${out.manifest.abs.file}"
+                expression="/manifest/@package" output="project.app.package" />
+        <property name="create.test.jar.file"
+          location="${CREATE_TEST_JAR_PATH}" />
+        <script language="javascript" src="${create.test.jar.file}"/>
+      </then>
+    </if>
     <if condition="${proguard.enabled}">
       <then>
-        <path id="out.dex.jar.input.ref" />
         <property name="obfuscate.absolute.dir" location="${out.absolute.dir}/proguard"/>
         <property name="preobfuscate.jar.file" value="${obfuscate.absolute.dir}/original.jar"/>
-        <property name="obfuscated.jar.file" value="${obfuscate.absolute.dir}/obfuscated.jar"/>
-        <!-- input for dex will be proguard's output -->
-        <property name="out.dex.input.absolute.dir" value="${obfuscated.jar.file}"/>
+        <property name="obfuscated.jar.file" value="${OBFUSCATED_JAR_PATH}"/>
+        <property name="obfuscated.jar.abs.file" location="${obfuscated.jar.file}"/>
 
         <!-- Add Proguard Tasks -->
         <property name="proguard.jar" location="${android.tools.dir}/proguard/lib/proguard.jar"/>
         <taskdef name="proguard" classname="proguard.ant.ProGuardTask" classpath="${proguard.jar}"/>
 
         <!-- Set the android classpath Path object into a single property. It'll be
                  all the jar files separated by a platform path-separator.
                  Each path must be quoted if it contains spaces.
         -->
         <pathconvert property="project.target.classpath.value" refid="project.target.class.path">
@@ skipping 29 matching lines @@
              are added under the <proguard> call below.
         -->
         <path id="proguard.configpath">
           <pathelement path="${proguard.config}"/>
         </path>
         <pathconvert pathsep='" -include "' property="proguard.configcmd"
           refid="proguard.configpath"/>
 
         <mkdir   dir="${obfuscate.absolute.dir}"/>
         <delete file="${preobfuscate.jar.file}"/>
-        <delete file="${obfuscated.jar.file}"/>
+        <delete file="${obfuscated.jar.abs.file}"/>
         <jar basedir="${out.classes.absolute.dir}"
           destfile="${preobfuscate.jar.file}"/>
         <proguard>
           -include      "${proguard.configcmd}"
           -include      "${out.absolute.dir}/proguard.txt"
           -injars       ${project.all.classes.value}
-          -outjars      "${obfuscated.jar.file}"
+          -outjars      "${obfuscated.jar.abs.file}"
           -libraryjars  ${project.target.classpath.value}
           -dump         "${obfuscate.absolute.dir}/dump.txt"
           -printseeds   "${obfuscate.absolute.dir}/seeds.txt"
           -printusage   "${obfuscate.absolute.dir}/usage.txt"
           -printmapping "${obfuscate.absolute.dir}/mapping.txt"
         </proguard>
       </then>
     </if>
-  </target>
-
-  <property name="dex.file.name" value="classes.dex" />
-  <property name="intermediate.dex.file" location="${out.absolute.dir}/${dex.file.name}" />
-
-  <!-- Converts this project's .class files into .dex files -->
-  <target name="-dex" depends="-obfuscate">
-      <!-- sets the primary input for dex. If a pre-dex task sets it to
-           something else this has no effect -->
-      <property name="out.dex.input.absolute.dir" value="${out.classes.absolute.dir}" />
-      <property name="dex.force.jumbo" value="false" />
-
-      <dex executable="${dx}"
-              output="${intermediate.dex.file}"
-              dexedlibs="${out.dexed.absolute.dir}"
-              nolocals="false"
-              forceJumbo="${dex.force.jumbo}"
-              verbose="${verbose}">
-          <path path="${out.dex.input.absolute.dir}"/>
-          <path refid="out.dex.jar.input.ref" />
-      </dex>
-      <touch file="${STAMP}" />
+    <touch file="${STAMP}" />
   </target>
 </project>