[iOS] Add a repack steps to iOS upstream for unit tests

ios/chrome/tools/build/ios_repack_locales.py

Index: ios/chrome/tools/build/ios_repack_locales.py
diff --git a/ios/chrome/tools/build/ios_repack_locales.py b/ios/chrome/tools/build/ios_repack_locales.py
new file mode 100755
index 0000000000000000000000000000000000000000..4801f0647b8669fcbe704e90142640b8b1d43a16
--- /dev/null
+++ b/ios/chrome/tools/build/ios_repack_locales.py
@@ -0,0 +1,155 @@
+#!/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.
+
+"""Helper script to repack paks for a list of locales for iOS.
+
+Gyp doesn't have any built-in looping capability, so this just provides a way to
+loop over a list of locales when repacking pak files, thus avoiding a
+proliferation of mostly duplicate, cut-n-paste gyp actions.
+"""
+
+import optparse
+import os
+import sys
+
+script_dir = os.path.dirname(__file__)
+src_dir = os.path.join(script_dir, os.pardir, os.pardir, os.pardir, os.pardir)
+sys.path.append(os.path.join(src_dir, 'tools', 'grit'))
+
+from grit.format import data_pack
+
+
+def calc_output(options, locale):
+  """Determine the file that will be generated for the given locale."""
+  #e.g. '<(INTERMEDIATE_DIR)/repack/da.pak',
+  # For Fake Bidi, generate it at a fixed path so that tests can safely
+  # reference it.
+  if locale == 'fake-bidi':
+    return os.path.join(options.share_int_dir, locale + '.pak')
+  # For Cocoa to find the locale at runtime, it needs to use '_' instead
+  # of '-' (http://crbug.com/20441).  Also, 'en-US' should be represented
+  # simply as 'en' (http://crbug.com/19165, http://crbug.com/25578).
+  if locale == 'en-US':
+    locale = 'en'
+  else:
+    locale = locale.replace('-', '_')
+  return os.path.join(options.out_dir, locale + '.lproj', 'locale.pak')
+
+
+def calc_inputs(options, locale):
+  """Determine the files that need processing for the given locale."""
+  inputs = []
+
+  #e.g. '<(SHARED_INTERMEDIATE_DIR)/components/strings/
+  # components_strings_da.pak',
+  inputs.append(os.path.join(options.share_int_dir, 'components', 'strings',
+                'components_strings_%s.pak' % locale))
+
+  #e.g. '<(SHARED_INTERMEDIATE_DIR)/ui/strings/ui_strings_da.pak',
+  inputs.append(os.path.join(options.share_int_dir, 'ui', 'strings',
+                'ui_strings_%s.pak' % locale))
+
+  #e.g. '<(SHARED_INTERMEDIATE_DIR)/ios/chrome/ios_strings_resources_da.pak'
+  inputs.append(os.path.join(options.share_int_dir, 'ios', 'chrome',
+                'ios_strings_resources_%s.pak' % locale))
+
+  if options.branding:
+    #e.g. '<(SHARED_INTERMEDIATE_DIR)/ios/chrome/google_chrome_strings_da.pak'
+    #     or
+    #     '<(SHARED_INTERMEDIATE_DIR)/ios/chrome/chromium_strings_da.pak'
+    inputs.append(os.path.join(options.share_int_dir, 'ios', 'chrome',
+        '%s_strings_%s.pak' % (options.branding, locale)))
+
+  # Add any extra input files.
+  for extra_file in options.extra_input:
+    inputs.append('%s_%s.pak' % (extra_file, locale))
+
+  return inputs
+
+
+def list_outputs(options, locales):
+  """Returns the names of files that will be generated for the given locales.
+
+  This is to provide gyp the list of output files, so build targets can
+  properly track what needs to be built.
+  """
+  outputs = []
+  for locale in locales:
+    outputs.append(calc_output(options, locale))
+  return outputs
+
+
+def list_inputs(options, locales):
+  """Returns the names of files that will be processed for the given locales.
+
+  This is to provide gyp the list of input files, so build targets can properly
+  track their prerequisites.
+  """
+  inputs = []
+  for locale in locales:
+    inputs.extend(calc_inputs(options, locale))
+  return inputs
+
+
+def quote_filenames(filenames):
+  """Quote each elements so filename spaces don't mess up gyp's attempt to parse
+  it into a list."""
+  return " ".join(['"%s"' % x for x in filenames])
+
+
+def repack_locales(options, locales):
+  """ Loop over and repack the given locales."""
+  for locale in locales:
+    inputs = calc_inputs(options, locale)
+    output = calc_output(options, locale)
+    data_pack.DataPack.RePack(output, inputs, whitelist_file=options.whitelist)
+
+
+def DoMain(argv):
+  parser = optparse.OptionParser("usage: %prog [options] locales")
+  parser.add_option(
+      "-i", action="store_true", dest="print_inputs", default=False,
+      help="Print the expected input file list, then exit.")
+  parser.add_option(
+      "-o", action="store_true", dest="print_outputs", default=False,
+      help="Print the expected output file list, then exit.")
+  parser.add_option(
+      "-x", action="store", dest="out_dir",
+      help="Intermediate build files output directory.")
+  parser.add_option(
+      "-s", action="store", dest="share_int_dir",
+      help="Shared intermediate build files output directory.")
+  parser.add_option(
+      "-b", action="store", dest="branding",
+      help="Branding type of this build.")
+  parser.add_option(
+      "-e", action="append", dest="extra_input", default=[],
+      help="Full path to an extra input pak file without the "
+           "locale suffix and \".pak\" extension.")
+  parser.add_option(
+      "--whitelist", action="store", help="Full path to the "
+      "whitelist used to filter output pak file resource IDs")
+  options, locales = parser.parse_args(argv)
+
+  if not locales:
+    parser.error('Please specificy at least one locale to process.\n')
+
+  if not (options.out_dir and options.share_int_dir):
+    parser.error('Please specify all of "-x" and "-s".\n')
+  if options.print_inputs and options.print_outputs:
+    parser.error('Please specify only one of "-i" or "-o".\n')
+
+  if options.print_inputs:
+    return quote_filenames(list_inputs(options, locales))
+
+  if options.print_outputs:
+    return quote_filenames(list_outputs(options, locales))
+
+  return repack_locales(options, locales)
+
+if __name__ == '__main__':
+  results = DoMain(sys.argv[1:])
+  if results:
+    print results