ios: Allow bot configs to set extra env variables

scripts/slave/recipe_modules/ios/api.py

 # 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.
 
 import copy
 
 from slave import recipe_api
 
 
 class iOSApi(recipe_api.RecipeApi):
@@ skipping 206 matching lines @@
     # Add the default GYP_DEFINES.
     gyp_defines = [
       '%s=%s' % (k, v) for k, v in self.__config['GYP_DEFINES'].iteritems()
     ]
 
     env = {
       'GYP_DEFINES': ' '.join(gyp_defines),
       'LANDMINES_VERBOSE': '1',
     }
 
+    # Add extra env variables.
+    env.update(self.__config.get('env', {}))

[smut, 2015/05/19 19:52:08]

In read_build_config, please add self.__config['env'] = self.__config.get('env',
{}), changing this to env.update(self.__config['env']). All the other optional
self.__config properties are initialized to empty there.

[hans, 2015/05/19 20:11:45]

Done.

+
     if self.compiler == 'xcodebuild':
       env['GYP_GENERATORS'] = 'xcode'
       env['GYP_GENERATOR_FLAGS'] = 'xcode_project_version=3.2'
       cwd = self.m.path['checkout'].join('xcodebuild')
       cmd = [
         'xcodebuild',
         '-configuration', self.configuration,
         '-project', self.m.path['checkout'].join(
           'build',
           'all.xcodeproj',
@@ skipping 189 matching lines @@
         self.configuration,
         'iossim',
       ),
       'ninja': self.m.path.join(
         'src',
          build_dir,
          '%s-%s' % (self.configuration, platform),
          'iossim',
       ),
     }[self.compiler]