Add a snapshot of flutter/engine/src/build to our sdk

build/android/gyp/dex.py

Index: build/android/gyp/dex.py
diff --git a/build/android/gyp/dex.py b/build/android/gyp/dex.py
new file mode 100755
index 0000000000000000000000000000000000000000..c26d23a61166627dba6c0acddd189301dd35c18a
--- /dev/null
+++ b/build/android/gyp/dex.py
@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+#
+# Copyright 2013 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 optparse
+import os
+import sys
+
+from util import build_utils
+from util import md5_check
+
+
+def DoDex(options, paths):
+  dx_binary = os.path.join(options.android_sdk_tools, 'dx')
+  # See http://crbug.com/272064 for context on --force-jumbo.
+  dex_cmd = [dx_binary, '--dex', '--force-jumbo', '--output', options.dex_path]
+  if options.no_locals != '0':
+    dex_cmd.append('--no-locals')
+
+  dex_cmd += paths
+
+  record_path = '%s.md5.stamp' % options.dex_path
+  md5_check.CallAndRecordIfStale(
+      lambda: build_utils.CheckOutput(dex_cmd, print_stderr=False),
+      record_path=record_path,
+      input_paths=paths,
+      input_strings=dex_cmd,
+      force=not os.path.exists(options.dex_path))
+  build_utils.WriteJson(
+      [os.path.relpath(p, options.output_directory) for p in paths],
+      options.dex_path + '.inputs')
+
+
+def main():
+  args = build_utils.ExpandFileArgs(sys.argv[1:])
+
+  parser = optparse.OptionParser()
+  build_utils.AddDepfileOption(parser)
+
+  parser.add_option('--android-sdk-tools',
+                    help='Android sdk build tools directory.')
+  parser.add_option('--output-directory',
+                    default=os.getcwd(),
+                    help='Path to the output build directory.')
+  parser.add_option('--dex-path', help='Dex output path.')
+  parser.add_option('--configuration-name',
+                    help='The build CONFIGURATION_NAME.')
+  parser.add_option('--proguard-enabled',
+                    help='"true" if proguard is enabled.')
+  parser.add_option('--proguard-enabled-input-path',
+                    help=('Path to dex in Release mode when proguard '
+                          'is enabled.'))
+  parser.add_option('--no-locals',
+                    help='Exclude locals list from the dex file.')
+  parser.add_option('--inputs', help='A list of additional input paths.')
+  parser.add_option('--excluded-paths',
+                    help='A list of paths to exclude from the dex file.')
+
+  options, paths = parser.parse_args(args)
+
+  required_options = ('android_sdk_tools',)
+  build_utils.CheckOptions(options, parser, required=required_options)
+
+  if (options.proguard_enabled == 'true'
+      and options.configuration_name == 'Release'):
+    paths = [options.proguard_enabled_input_path]
+
+  if options.inputs:
+    paths += build_utils.ParseGypList(options.inputs)
+
+  if options.excluded_paths:
+    # Excluded paths are relative to the output directory.
+    exclude_paths = build_utils.ParseGypList(options.excluded_paths)
+    paths = [p for p in paths if not
+             os.path.relpath(p, options.output_directory) in exclude_paths]
+
+  DoDex(options, paths)
+
+  if options.depfile:
+    build_utils.WriteDepfile(
+        options.depfile,
+        paths + build_utils.GetPythonDependencies())
+
+
+
+if __name__ == '__main__':
+  sys.exit(main())