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

//ios unit tests will soon required access to packed resources (both theme
and strings) so add steps required to repack data.

Those steps only pack what is required by //ios unit tests and thus pack to
repack_ios to avoid collision with downstream packing steps. Eventually the
upstream and downstream repack steps will be merged.

This forks some steps from //chrome since //ios cannot depends on //chrome
and those steps are too specific to Chrome to be moved higher in //build.

BUG=429756,475514

Review URL: https://codereview.chromium.org/1164983004

Cr-Commit-Position: refs/heads/master@{#333229}

5 files changed, 260 insertions, 3 deletions

diff --git a/ios/build/grit_whitelist.txt b/ios/build/grit_whitelist.txt
deleted file mode 100644
index b1ba0ed..0000000
--- a/ios/build/grit_whitelist.txt
+++ /dev/null
@@ -1 +0,0 @@
-IDR_INFOBAR_TRANSLATE_IOS
diff --git a/ios/chrome/ios_chrome_resources.gyp b/ios/chrome/ios_chrome_resources.gyp
index 5e99526d..fa00362 100644
--- a/ios/chrome/ios_chrome_resources.gyp
+++ b/ios/chrome/ios_chrome_resources.gyp
@@ -52,8 +52,7 @@
         {
           'action_name': 'ios_theme_resources',
           'variables': {
-            # TODO(lliabraa): Remove this whitelist.
-            'grit_whitelist': '<(DEPTH)/ios/build/grit_whitelist.txt',
+            'grit_whitelist': '',
             'grit_grd_file': 'app/theme/ios_theme_resources.grd',
           },
           'includes': [ '../../build/grit_action.gypi' ],
@@ -71,6 +70,93 @@
         ],
       },
     },
+    {
+      'target_name': 'ios_packed_resources',
+      'type': 'none',
+      'dependencies': [
+        '../../components/components_strings.gyp:components_strings',
+        '../../net/net.gyp:net_resources',
+        '../../ui/resources/ui_resources.gyp:ui_resources',
+        '../../ui/strings/ui_strings.gyp:ui_strings',
+        'ios_chrome_resources',
+      ],
+      'actions': [
+        {
+          'action_name': 'repack_ios_locales',
+          'variables': {
+            'repack_locales_path': 'tools/build/ios_repack_locales.py',
+          },
+          'inputs': [
+            'tools/build/ios_repack_locales.py',
+            '<!@pymod_do_main(ios_repack_locales -i '
+              '-s <(SHARED_INTERMEDIATE_DIR) '
+              '-x <(SHARED_INTERMEDIATE_DIR)/repack_ios '
+              '<(locales))'
+          ],
+          'outputs': [
+            '<!@pymod_do_main(ios_repack_locales -o '
+              '-s <(SHARED_INTERMEDIATE_DIR) '
+              '-x <(SHARED_INTERMEDIATE_DIR)/repack_ios '
+              '<(locales))'
+          ],
+          'action': [
+            'python',
+            'tools/build/ios_repack_locales.py',
+            '-x', '<(SHARED_INTERMEDIATE_DIR)/repack_ios',
+            '-s', '<(SHARED_INTERMEDIATE_DIR)',
+            '<@(locales)',
+          ],
+        },
+        {
+          'action_name': 'repack_ios_resources_100_percent',
+          'variables': {
+            'pak_inputs': [
+              '<(SHARED_INTERMEDIATE_DIR)/components/components_resources_100_percent.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/ios/chrome/ios_theme_resources_100_percent.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/ui/resources/ui_resources_100_percent.pak',
+            ],
+            'pak_output': '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_100_percent.pak',
+          },
+          'includes': [ '../../build/repack_action.gypi' ],
+        },
+        {
+          'action_name': 'repack_ios_resources_200_percent',
+          'variables': {
+            'pak_inputs': [
+              '<(SHARED_INTERMEDIATE_DIR)/components/components_resources_200_percent.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/ios/chrome/ios_theme_resources_200_percent.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/ui/resources/ui_resources_200_percent.pak',
+            ],
+            'pak_output': '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_200_percent.pak',
+          },
+          'includes': [ '../../build/repack_action.gypi' ],
+        },
+        {
+          'action_name': 'repack_ios_resources_300_percent',
+          'variables': {
+            'pak_inputs': [
+              '<(SHARED_INTERMEDIATE_DIR)/components/components_resources_300_percent.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/ios/chrome/ios_theme_resources_300_percent.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/ui/resources/ui_resources_300_percent.pak',
+            ],
+            'pak_output': '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_300_percent.pak',
+          },
+          'includes': [ '../../build/repack_action.gypi' ],
+        },
+        {
+          'action_name': 'repack_ios_resources',
+          'variables': {
+            'pak_inputs': [
+              '<(SHARED_INTERMEDIATE_DIR)/components/components_resources.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/net/net_resources.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/ui/resources/webui_resources.pak',
+            ],
+            'pak_output': '<(SHARED_INTERMEDIATE_DIR)/repack_ios/resources.pak',
+          },
+          'includes': [ '../../build/repack_action.gypi' ],
+        },
+      ],
+    },
   ],
 }
 
diff --git a/ios/chrome/ios_chrome_resources_bundle.gypi b/ios/chrome/ios_chrome_resources_bundle.gypi
new file mode 100644
index 0000000..f37a61a
--- /dev/null
+++ b/ios/chrome/ios_chrome_resources_bundle.gypi
@@ -0,0 +1,16 @@
+# 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.
+{
+  'dependencies': [
+    '<(DEPTH)/ios/chrome/ios_chrome_resources.gyp:ios_packed_resources',
+  ],
+  'mac_bundle_resources': [
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_100_percent.pak',
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_200_percent.pak',
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/chrome_300_percent.pak',
+    '<(SHARED_INTERMEDIATE_DIR)/repack_ios/resources.pak',
+    '<!@pymod_do_main(ios_repack_locales -o -s <(SHARED_INTERMEDIATE_DIR) '
+      '-x <(SHARED_INTERMEDIATE_DIR)/repack_ios <(locales))',
+  ],
+}
diff --git a/ios/chrome/ios_chrome_tests.gyp b/ios/chrome/ios_chrome_tests.gyp
index 55597fc..d6bb2ed 100644
--- a/ios/chrome/ios_chrome_tests.gyp
+++ b/ios/chrome/ios_chrome_tests.gyp
@@ -45,6 +45,7 @@
         'browser/ui/uikit_ui_util_unittest.mm',
         'common/string_util_unittest.mm',
       ],
+      'includes': ['ios_chrome_resources_bundle.gypi'],
     },
     {
       'target_name': 'ios_chrome_test_support',
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 0000000..4801f06
--- /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