[Sync] Move //sync to //components/sync.

sync/protocol/prepare_protos_for_java_tests.py

-#!/usr/bin/env python
-# Copyright 2015 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.
-
-"""Converts protocol buffer definitions to ones supported by the Nano library.
-
-Note: Java files generated from the output of this script should only be used
-in tests.
-
-Chromium uses the Java Protocol Buffers Nano runtime library. This library,
-compared to the standard proto compilter in C++, is limited. Most notably, the
-retain_unknown_fields option is not supported.
-
-This script also adds Java-specific configs to enable usage in Java. This script
-is Sync-specific, so a Sync package name is used.
-"""
-
-import optparse
-import os
-import re
-import sys
-
-
-def main():
-  parser = optparse.OptionParser(
-      usage='Usage: %prog [options...] original_proto_files')
-  parser.add_option('-o', '--output_dir', dest='output_dir',
-                    help='Where to put the modified proto files')
-
-  options, args = parser.parse_args()
-  if not options.output_dir:
-    print 'output_dir not specified.'
-    return 1
-
-  # Map of original base file names to their contents.
-  original_proto_contents = {}
-  for original_proto_file in args:
-    with open(original_proto_file, 'r') as original_file:
-      base_name = os.path.basename(original_proto_file)
-      original_proto_contents[base_name] = original_file.read()
-
-  for file_name, original_contents in original_proto_contents.iteritems():
-    new_contents = ConvertProtoFileContents(original_contents)
-    with open(os.path.join(options.output_dir, file_name), 'w') as new_file:
-      new_file.write(new_contents)
-
-
-def ConvertProtoFileContents(contents):
-  """Returns a Nano-compatible version of contents.
-
-  Args:
-    contents: The contents of a protocol buffer definition file.
-  """
-  # Remove the retain_unknown_fields option.
-  incompatible_option_regex = re.compile(
-      r'^\s*option\s+retain_unknown_fields\s*=.*;', re.MULTILINE)
-  pruned_contents = incompatible_option_regex.sub('', contents)
-
-  # Add the java_multiple_files and java_package options. Options must be set
-  # after the syntax declaration, so look for the declaration and place the
-  # options immediately after it.
-  # TODO(pvalenzuela): Set Java options via proto compiler flags instead of
-  # modifying the files here.
-  syntax_regex = re.compile(r'^\s*syntax\s*=.*;', re.MULTILINE)
-  syntax_end = syntax_regex.search(pruned_contents).end()
-  java_options = ('option java_multiple_files = true; '
-                  'option java_package = "org.chromium.sync.protocol";')
-
-  contents_to_join = (pruned_contents[:syntax_end], java_options,
-                      pruned_contents[syntax_end:])
-  return ''.join(contents_to_join)
-
-
-if __name__ == '__main__':
-  sys.exit(main())