AU: FilesystemCopierAction: copy bit-exactly

src/platform/update_engine/SConstruct

 # Copyright (c) 2009 The Chromium OS 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 os
 
 # Protobuffer compilation
 """ Inputs:
         target: list of targets to compile to
         source: list of sources to compile
@@ skipping 120 matching lines @@
 env['CPPPATH'] = ['..', '../../third_party/chrome/files', '../../common']
 env['LIBPATH'] = ['../../third_party/chrome']
 env['BUILDERS']['ProtocolBuffer'] = proto_builder
 env['BUILDERS']['DbusBindings'] = dbus_bindings_builder
 
 # Fix issue with scons not passing pkg-config vars through the environment.
 for key in Split('PKG_CONFIG_LIBDIR PKG_CONFIG_PATH'):
   if os.environ.has_key(key):
     env['ENV'][key] = os.environ[key]
 
-env.ParseConfig('pkg-config --cflags --libs glib-2.0 dbus-1 dbus-glib-1')
+env.ParseConfig('pkg-config --cflags --libs '
+                'dbus-1 dbus-glib-1 gio-2.0 gio-unix-2.0 glib-2.0')
 env.ProtocolBuffer('update_metadata.pb.cc', 'update_metadata.proto')
 
 env.DbusBindings('update_engine.dbusclient.h', 'update_engine.xml')
 
 if ARGUMENTS.get('debug', 0):
   env['CCFLAGS'] += ' -fprofile-arcs -ftest-coverage'
   env['LIBS'] += ['bz2', 'gcov']
 
 sources = Split("""action_processor.cc
                    bzip.cc
@@ skipping 31 matching lines @@
                             action_processor_unittest.cc
                             bzip_extent_writer_unittest.cc
                             cycle_breaker_unittest.cc
                             decompressing_file_writer_unittest.cc
                             delta_diff_generator_unittest.cc
                             delta_performer_unittest.cc
                             download_action_unittest.cc
                             extent_mapper_unittest.cc
                             extent_writer_unittest.cc
                             file_writer_unittest.cc
+                            filesystem_copier_action_unittest.cc
                             filesystem_iterator_unittest.cc
                             graph_utils_unittest.cc
                             http_fetcher_unittest.cc
                             mock_http_fetcher.cc
                             omaha_hash_calculator_unittest.cc
                             omaha_request_prep_action_unittest.cc
                             omaha_response_handler_action_unittest.cc
                             postinstall_runner_action_unittest.cc
                             set_bootable_flag_action_unittest.cc
                             subprocess_unittest.cc
@@ skipping 15 matching lines @@
 
 client_cmd = env.Program('update_engine_client', sources + client_main);
 
 Clean(unittest_cmd, Glob('*.gcda') + Glob('*.gcno') + Glob('*.gcov') +
                     Split('html app.info'))
 
 delta_generator_cmd = env.Program('delta_generator',
                                   sources + delta_generator_main)
 
 http_server_cmd = env.Program('test_http_server', 'test_http_server.cc')