Translate some ant to python

build/java.gypi

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file is meant to be included into a target to provide a rule
 # to build Java in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my-package_java',
@@ skipping 38 matching lines @@
   'dependencies': [
     '<(DEPTH)/build/build_output_dirs_android.gyp:build_output_dirs'
   ],
   'variables': {
     'android_jar': '<(android_sdk)/android.jar',
     'input_jars_paths': [ '<(android_jar)' ],
     'additional_src_dirs': [],
     'javac_includes': [],
     'jar_name': '<(_target_name).jar',
     'jar_path': '<(PRODUCT_DIR)/lib.java/<(jar_name)',
-    'excluded_classes': [ '*/R.class', '*/R##*.class' ],
+    'jar_excluded_classes': [ '*/R.class', '*/R##*.class' ],
     'additional_input_paths': [],
     'generated_src_dirs': ['>@(generated_R_dirs)'],
     'generated_R_dirs': [],
     'has_java_resources%': 0,
     'java_strings_grd%': '',
     'res_extra_dirs': [],
     'res_extra_files': [],
     'resource_input_paths': ['>@(res_extra_files)'],
     'intermediate_dir': '<(SHARED_INTERMEDIATE_DIR)/<(_target_name)',
     'classes_dir': '<(intermediate_dir)/classes',
@@ skipping 93 matching lines @@
         },
       ],
     }],
   ],
   'actions': [
     {
       'action_name': 'javac_<(_target_name)',
       'message': 'Compiling <(_target_name) java sources',
       'variables': {
         'all_src_dirs': [
-          '>@(java_in_dir)/src',
+          '>(java_in_dir)/src',
           '>@(additional_src_dirs)',
           '>@(generated_src_dirs)',
         ],
       },
       'inputs': [
         '<(DEPTH)/build/android/pylib/build_utils.py',
         '<(DEPTH)/build/android/javac.py',
         '>!@(find >(java_in_dir) >(additional_src_dirs) -name "*.java")',
         '>@(input_jars_paths)',
         '>@(additional_input_paths)',
@@ skipping 21 matching lines @@
         '<(DEPTH)/build/android/jar.py',
         '<(compile_stamp)',
       ],
       'outputs': [
         '<(jar_path)',
       ],
       'action': [
         'python', '<(DEPTH)/build/android/jar.py',
         '--classes-dir=<(classes_dir)',
         '--jar-path=<(jar_path)',
-        '--excluded-classes=<(excluded_classes)',
+        '--excluded-classes=<(jar_excluded_classes)',
 
         # TODO(newt): remove this once http://crbug.com/177552 is fixed in ninja.
         '--ignore=>!(echo \'>(_inputs)\' | md5sum)',
       ]
     },
   ],
 }