Generate Android .isolate files used for test()s

build/android/pylib/utils/isolator.py

 # Copyright 2014 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.
 
 import fnmatch
 import glob
 import os
 import shutil
 import sys
 import tempfile
@@ skipping 37 matching lines @@
     'use_instrumented_libraries': '0',
     'use_prebuilt_instrumented_libraries': '0',
     'use_openssl': '0',
     'use_ozone': '0',
     'use_x11': '0',
     'v8_use_external_startup_data': '1',
     'msvs_version': '0',
   }
 
 
+def IsIsolateEmpty(isolate_path):
+  """Returns whether there are no files in the .isolate."""
+  with open(isolate_path) as f:
+    return "'files': []" in f.read()
+
+
 class Isolator(object):
   """Manages calls to isolate.py for the android test runner scripts."""
 
   def __init__(self):
     self._isolate_deps_dir = tempfile.mkdtemp()
 
   @property
   def isolate_deps_dir(self):
     return self._isolate_deps_dir
 
@@ skipping 100 matching lines @@
 
     # Move everything in PRODUCT_DIR to top level.
     deps_product_dir = os.path.join(
         deps_out_dir, os.path.basename(constants.GetOutDirectory()))
     if os.path.isdir(deps_product_dir):
       for p in os.listdir(deps_product_dir):
         shutil.move(os.path.join(deps_product_dir, p), self._isolate_deps_dir)
       os.rmdir(deps_product_dir)
       os.rmdir(deps_out_dir)