Add support for iOS Frameworks with header maps.

pylib/gyp/generator/ninja.py

Index: pylib/gyp/generator/ninja.py
diff --git a/pylib/gyp/generator/ninja.py b/pylib/gyp/generator/ninja.py
index ffb3a8567fa4ee16fdc43777dcd8bb44844fd6e0..e896552a3d1d149e1ce7417df1672d03ec2dd81d 100644
--- a/pylib/gyp/generator/ninja.py
+++ b/pylib/gyp/generator/ninja.py
@@ -559,6 +559,9 @@ class NinjaWriter(object):
     if 'sources' in spec and self.flavor == 'win':
       outputs += self.WriteWinIdlFiles(spec, prebuild)
 
+    if self.xcode_settings.IsIosFramework():
+      self.WriteiOSFrameworkHeaders(spec, outputs, prebuild)
+
     stamp = self.WriteCollapsedDependencies('actions_rules_copies', outputs)
 
     if self.is_mac_bundle:
@@ -742,7 +745,8 @@ class NinjaWriter(object):
 
   def WriteCopies(self, copies, prebuild, mac_bundle_depends):
     outputs = []
-    env = self.GetToolchainEnv()
+    extra_env = self.xcode_settings.GetPerTargetSettings()
+    env = self.GetToolchainEnv(additional_settings=extra_env)
     for copy in copies:
       for path in copy['files']:
         # Normalize the path so trailing slashes don't confuse us.
@@ -764,6 +768,21 @@ class NinjaWriter(object):
 
     return outputs
 
+  def WriteiOSFrameworkHeaders(self, spec, outputs, prebuild):
+    """{rebuild steps on hmap generation and header copies in iOS frameworks."""
+    framework = self.ComputeMacBundleOutput()
+    all_sources = spec['sources']
+    copy_headers = spec['mac_framework_headers']
+    output = self.GypPathToUniqueOutput('headers.hmap')
+    self.xcode_settings.header_map_path = output
+    all_headers = map(self.GypPathToNinja,
+                      filter(lambda x:x.endswith(('.h')), all_sources))
+    variables = [('framework', framework),
+                 ('copy_headers', map(self.GypPathToNinja, copy_headers))]
+    outputs.extend(self.ninja.build(
+        output, 'compile_ios_framework_headers', all_headers,
+        variables=variables, order_only=prebuild))
+
   def WriteMacBundleResources(self, resources, bundle_depends):
     """Writes ninja edges for 'mac_bundle_resources'."""
     xcassets = []
@@ -1338,9 +1357,12 @@ class NinjaWriter(object):
     self.AppendPostbuildVariable(variables, spec, output, self.target.binary,
                                  is_command_start=not package_framework)
     if package_framework and not is_empty:
-      variables.append(('version', self.xcode_settings.GetFrameworkVersion()))
-      self.ninja.build(output, 'package_framework', mac_bundle_depends,
-                       variables=variables)
+      if spec['type'] == 'shared_library' and self.xcode_settings.isIOS:
+        self.ninja.build(output, 'package_ios_framework', mac_bundle_depends)
+      else:
+        variables.append(('version', self.xcode_settings.GetFrameworkVersion()))
+        self.ninja.build(output, 'package_framework', mac_bundle_depends,
+                         variables=variables)
     else:
       self.ninja.build(output, 'stamp', mac_bundle_depends,
                        variables=variables)
@@ -2242,6 +2264,12 @@ def GenerateOutputForConfig(target_list, target_dicts, data, params,
       description='COMPILE XCASSETS $in',
       command='$env ./gyp-mac-tool compile-xcassets $keys $in')
     master_ninja.rule(
+      'compile_ios_framework_headers',
+      description='COMPILE HEADER MAPS AND COPY FRAMEWORK HEADER $in',
+      command='$env ./gyp-mac-tool compile-ios-framework-header-map $out '
+              '$framework $in && $env ./gyp-mac-tool '
+              'copy-ios-framework-headers $framework $copy_headers')
+    master_ninja.rule(
       'mac_tool',
       description='MACTOOL $mactool_cmd $in',
       command='$env ./gyp-mac-tool $mactool_cmd $in $out $binary')
@@ -2250,6 +2278,11 @@ def GenerateOutputForConfig(target_list, target_dicts, data, params,
       description='PACKAGE FRAMEWORK $out, POSTBUILDS',
       command='./gyp-mac-tool package-framework $out $version$postbuilds '
               '&& touch $out')
+    master_ninja.rule(
+      'package_ios_framework',
+      description='PACKAGE IOS FRAMEWORK $out, POSTBUILDS',
+      command='./gyp-mac-tool package-ios-framework $out $postbuilds '
+              '&& touch $out')
   if flavor == 'win':
     master_ninja.rule(
       'stamp',