Remove the Android generator.

pylib/gyp/generator/android.py

Index: pylib/gyp/generator/android.py
diff --git a/pylib/gyp/generator/android.py b/pylib/gyp/generator/android.py
deleted file mode 100644
index ad6eff6d17b17d216bff8241696b1227211b4601..0000000000000000000000000000000000000000
--- a/pylib/gyp/generator/android.py
+++ /dev/null
@@ -1,1094 +0,0 @@
-# Copyright (c) 2012 Google Inc. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Notes:
-#
-# This generates makefiles suitable for inclusion into the Android build system
-# via an Android.mk file. It is based on make.py, the standard makefile
-# generator.
-#
-# The code below generates a separate .mk file for each target, but
-# all are sourced by the top-level GypAndroid.mk.  This means that all
-# variables in .mk-files clobber one another, and furthermore that any
-# variables set potentially clash with other Android build system variables.
-# Try to avoid setting global variables where possible.
-
-import gyp
-import gyp.common
-import gyp.generator.make as make  # Reuse global functions from make backend.
-import os
-import re
-import subprocess
-
-generator_default_variables = {
-  'OS': 'android',
-  'EXECUTABLE_PREFIX': '',
-  'EXECUTABLE_SUFFIX': '',
-  'STATIC_LIB_PREFIX': 'lib',
-  'SHARED_LIB_PREFIX': 'lib',
-  'STATIC_LIB_SUFFIX': '.a',
-  'SHARED_LIB_SUFFIX': '.so',
-  'INTERMEDIATE_DIR': '$(gyp_intermediate_dir)',
-  'SHARED_INTERMEDIATE_DIR': '$(gyp_shared_intermediate_dir)',
-  'PRODUCT_DIR': '$(gyp_shared_intermediate_dir)',
-  'SHARED_LIB_DIR': '$(builddir)/lib.$(TOOLSET)',
-  'LIB_DIR': '$(obj).$(TOOLSET)',
-  'RULE_INPUT_ROOT': '%(INPUT_ROOT)s',  # This gets expanded by Python.
-  'RULE_INPUT_DIRNAME': '%(INPUT_DIRNAME)s',  # This gets expanded by Python.
-  'RULE_INPUT_PATH': '$(RULE_SOURCES)',
-  'RULE_INPUT_EXT': '$(suffix $<)',
-  'RULE_INPUT_NAME': '$(notdir $<)',
-  'CONFIGURATION_NAME': '$(GYP_CONFIGURATION)',
-}
-
-# Make supports multiple toolsets
-generator_supports_multiple_toolsets = True
-
-
-# Generator-specific gyp specs.
-generator_additional_non_configuration_keys = [
-    # Boolean to declare that this target does not want its name mangled.
-    'android_unmangled_name',
-    # Map of android build system variables to set.
-    'aosp_build_settings',
-]
-generator_additional_path_sections = []
-generator_extra_sources_for_rules = []
-
-
-ALL_MODULES_FOOTER = """\
-# "gyp_all_modules" is a concatenation of the "gyp_all_modules" targets from
-# all the included sub-makefiles. This is just here to clarify.
-gyp_all_modules:
-"""
-
-header = """\
-# This file is generated by gyp; do not edit.
-
-"""
-
-# Map gyp target types to Android module classes.
-MODULE_CLASSES = {
-    'static_library': 'STATIC_LIBRARIES',
-    'shared_library': 'SHARED_LIBRARIES',
-    'executable': 'EXECUTABLES',
-}
-
-
-def IsCPPExtension(ext):
-  return make.COMPILABLE_EXTENSIONS.get(ext) == 'cxx'
-
-
-def Sourceify(path):
-  """Convert a path to its source directory form. The Android backend does not
-     support options.generator_output, so this function is a noop."""
-  return path
-
-
-# Map from qualified target to path to output.
-# For Android, the target of these maps is a tuple ('static', 'modulename'),
-# ('dynamic', 'modulename'), or ('path', 'some/path') instead of a string,
-# since we link by module.
-target_outputs = {}
-# Map from qualified target to any linkable output.  A subset
-# of target_outputs.  E.g. when mybinary depends on liba, we want to
-# include liba in the linker line; when otherbinary depends on
-# mybinary, we just want to build mybinary first.
-target_link_deps = {}
-
-
-class AndroidMkWriter(object):
-  """AndroidMkWriter packages up the writing of one target-specific Android.mk.
-
-  Its only real entry point is Write(), and is mostly used for namespacing.
-  """
-
-  def __init__(self, android_top_dir):
-    self.android_top_dir = android_top_dir
-
-  def Write(self, qualified_target, relative_target, base_path, output_filename,
-            spec, configs, part_of_all, write_alias_target, sdk_version):
-    """The main entry point: writes a .mk file for a single target.
-
-    Arguments:
-      qualified_target: target we're generating
-      relative_target: qualified target name relative to the root
-      base_path: path relative to source root we're building in, used to resolve
-                 target-relative paths
-      output_filename: output .mk file name to write
-      spec, configs: gyp info
-      part_of_all: flag indicating this target is part of 'all'
-      write_alias_target: flag indicating whether to create short aliases for
-                          this target
-      sdk_version: what to emit for LOCAL_SDK_VERSION in output
-    """
-    gyp.common.EnsureDirExists(output_filename)
-
-    self.fp = open(output_filename, 'w')
-
-    self.fp.write(header)
-
-    self.qualified_target = qualified_target
-    self.relative_target = relative_target
-    self.path = base_path
-    self.target = spec['target_name']
-    self.type = spec['type']
-    self.toolset = spec['toolset']
-
-    deps, link_deps = self.ComputeDeps(spec)
-
-    # Some of the generation below can add extra output, sources, or
-    # link dependencies.  All of the out params of the functions that
-    # follow use names like extra_foo.
-    extra_outputs = []
-    extra_sources = []
-
-    self.android_class = MODULE_CLASSES.get(self.type, 'GYP')
-    self.android_module = self.ComputeAndroidModule(spec)
-    (self.android_stem, self.android_suffix) = self.ComputeOutputParts(spec)
-    self.output = self.output_binary = self.ComputeOutput(spec)
-
-    # Standard header.
-    self.WriteLn('include $(CLEAR_VARS)\n')
-
-    # Module class and name.
-    self.WriteLn('LOCAL_MODULE_CLASS := ' + self.android_class)
-    self.WriteLn('LOCAL_MODULE := ' + self.android_module)
-    # Only emit LOCAL_MODULE_STEM if it's different to LOCAL_MODULE.
-    # The library module classes fail if the stem is set. ComputeOutputParts
-    # makes sure that stem == modulename in these cases.
-    if self.android_stem != self.android_module:
-      self.WriteLn('LOCAL_MODULE_STEM := ' + self.android_stem)
-    self.WriteLn('LOCAL_MODULE_SUFFIX := ' + self.android_suffix)
-    if self.toolset == 'host':
-      self.WriteLn('LOCAL_IS_HOST_MODULE := true')
-      self.WriteLn('LOCAL_MULTILIB := $(GYP_HOST_MULTILIB)')
-    else:
-      self.WriteLn('LOCAL_MODULE_TARGET_ARCH := '
-                   '$(TARGET_$(GYP_VAR_PREFIX)ARCH)')
-      self.WriteLn('LOCAL_SDK_VERSION := %s' % sdk_version)
-
-    # Grab output directories; needed for Actions and Rules.
-    if self.toolset == 'host':
-      self.WriteLn('gyp_intermediate_dir := '
-                   '$(call local-intermediates-dir,,$(GYP_HOST_VAR_PREFIX))')
-    else:
-      self.WriteLn('gyp_intermediate_dir := '
-                   '$(call local-intermediates-dir,,$(GYP_VAR_PREFIX))')
-    self.WriteLn('gyp_shared_intermediate_dir := '
-                 '$(call intermediates-dir-for,GYP,shared,,,$(GYP_VAR_PREFIX))')
-    self.WriteLn()
-
-    # List files this target depends on so that actions/rules/copies/sources
-    # can depend on the list.
-    # TODO: doesn't pull in things through transitive link deps; needed?
-    target_dependencies = [x[1] for x in deps if x[0] == 'path']
-    self.WriteLn('# Make sure our deps are built first.')
-    self.WriteList(target_dependencies, 'GYP_TARGET_DEPENDENCIES',
-                   local_pathify=True)
-
-    # Actions must come first, since they can generate more OBJs for use below.
-    if 'actions' in spec:
-      self.WriteActions(spec['actions'], extra_sources, extra_outputs)
-
-    # Rules must be early like actions.
-    if 'rules' in spec:
-      self.WriteRules(spec['rules'], extra_sources, extra_outputs)
-
-    if 'copies' in spec:
-      self.WriteCopies(spec['copies'], extra_outputs)
-
-    # GYP generated outputs.
-    self.WriteList(extra_outputs, 'GYP_GENERATED_OUTPUTS', local_pathify=True)
-
-    # Set LOCAL_ADDITIONAL_DEPENDENCIES so that Android's build rules depend
-    # on both our dependency targets and our generated files.
-    self.WriteLn('# Make sure our deps and generated files are built first.')
-    self.WriteLn('LOCAL_ADDITIONAL_DEPENDENCIES := $(GYP_TARGET_DEPENDENCIES) '
-                 '$(GYP_GENERATED_OUTPUTS)')
-    self.WriteLn()
-
-    # Sources.
-    if spec.get('sources', []) or extra_sources:
-      self.WriteSources(spec, configs, extra_sources)
-
-    self.WriteTarget(spec, configs, deps, link_deps, part_of_all,
-                     write_alias_target)
-
-    # Update global list of target outputs, used in dependency tracking.
-    target_outputs[qualified_target] = ('path', self.output_binary)
-
-    # Update global list of link dependencies.
-    if self.type == 'static_library':
-      target_link_deps[qualified_target] = ('static', self.android_module)
-    elif self.type == 'shared_library':
-      target_link_deps[qualified_target] = ('shared', self.android_module)
-
-    self.fp.close()
-    return self.android_module
-
-
-  def WriteActions(self, actions, extra_sources, extra_outputs):
-    """Write Makefile code for any 'actions' from the gyp input.
-
-    extra_sources: a list that will be filled in with newly generated source
-                   files, if any
-    extra_outputs: a list that will be filled in with any outputs of these
-                   actions (used to make other pieces dependent on these
-                   actions)
-    """
-    for action in actions:
-      name = make.StringToMakefileVariable('%s_%s' % (self.relative_target,
-                                                      action['action_name']))
-      self.WriteLn('### Rules for action "%s":' % action['action_name'])
-      inputs = action['inputs']
-      outputs = action['outputs']
-
-      # Build up a list of outputs.
-      # Collect the output dirs we'll need.
-      dirs = set()
-      for out in outputs:
-        if not out.startswith('$'):
-          print ('WARNING: Action for target "%s" writes output to local path '
-                 '"%s".' % (self.target, out))
-        dir = os.path.split(out)[0]
-        if dir:
-          dirs.add(dir)
-      if int(action.get('process_outputs_as_sources', False)):
-        extra_sources += outputs
-
-      # Prepare the actual command.
-      command = gyp.common.EncodePOSIXShellList(action['action'])
-      if 'message' in action:
-        quiet_cmd = 'Gyp action: %s ($@)' % action['message']
-      else:
-        quiet_cmd = 'Gyp action: %s ($@)' % name
-      if len(dirs) > 0:
-        command = 'mkdir -p %s' % ' '.join(dirs) + '; ' + command
-
-      cd_action = 'cd $(gyp_local_path)/%s; ' % self.path
-      command = cd_action + command
-
-      # The makefile rules are all relative to the top dir, but the gyp actions
-      # are defined relative to their containing dir.  This replaces the gyp_*
-      # variables for the action rule with an absolute version so that the
-      # output goes in the right place.
-      # Only write the gyp_* rules for the "primary" output (:1);
-      # it's superfluous for the "extra outputs", and this avoids accidentally
-      # writing duplicate dummy rules for those outputs.
-      main_output = make.QuoteSpaces(self.LocalPathify(outputs[0]))
-      self.WriteLn('%s: gyp_local_path := $(LOCAL_PATH)' % main_output)
-      self.WriteLn('%s: gyp_var_prefix := $(GYP_VAR_PREFIX)' % main_output)
-      self.WriteLn('%s: gyp_intermediate_dir := '
-                   '$(abspath $(gyp_intermediate_dir))' % main_output)
-      self.WriteLn('%s: gyp_shared_intermediate_dir := '
-                   '$(abspath $(gyp_shared_intermediate_dir))' % main_output)
-
-      # Android's envsetup.sh adds a number of directories to the path including
-      # the built host binary directory. This causes actions/rules invoked by
-      # gyp to sometimes use these instead of system versions, e.g. bison.
-      # The built host binaries may not be suitable, and can cause errors.
-      # So, we remove them from the PATH using the ANDROID_BUILD_PATHS variable
-      # set by envsetup.
-      self.WriteLn('%s: export PATH := $(subst $(ANDROID_BUILD_PATHS),,$(PATH))'
-                   % main_output)
-
-      # Don't allow spaces in input/output filenames, but make an exception for
-      # filenames which start with '$(' since it's okay for there to be spaces
-      # inside of make function/macro invocations.
-      for input in inputs:
-        if not input.startswith('$(') and ' ' in input:
-          raise gyp.common.GypError(
-              'Action input filename "%s" in target %s contains a space' %
-              (input, self.target))
-      for output in outputs:
-        if not output.startswith('$(') and ' ' in output:
-          raise gyp.common.GypError(
-              'Action output filename "%s" in target %s contains a space' %
-              (output, self.target))
-
-      self.WriteLn('%s: %s $(GYP_TARGET_DEPENDENCIES)' %
-                   (main_output, ' '.join(map(self.LocalPathify, inputs))))
-      self.WriteLn('\t@echo "%s"' % quiet_cmd)
-      self.WriteLn('\t$(hide)%s\n' % command)
-      for output in outputs[1:]:
-        # Make each output depend on the main output, with an empty command
-        # to force make to notice that the mtime has changed.
-        self.WriteLn('%s: %s ;' % (self.LocalPathify(output), main_output))
-
-      extra_outputs += outputs
-      self.WriteLn()
-
-    self.WriteLn()
-
-
-  def WriteRules(self, rules, extra_sources, extra_outputs):
-    """Write Makefile code for any 'rules' from the gyp input.
-
-    extra_sources: a list that will be filled in with newly generated source
-                   files, if any
-    extra_outputs: a list that will be filled in with any outputs of these
-                   rules (used to make other pieces dependent on these rules)
-    """
-    if len(rules) == 0:
-      return
-
-    for rule in rules:
-      if len(rule.get('rule_sources', [])) == 0:
-        continue
-      name = make.StringToMakefileVariable('%s_%s' % (self.relative_target,
-                                                      rule['rule_name']))
-      self.WriteLn('\n### Generated for rule "%s":' % name)
-      self.WriteLn('# "%s":' % rule)
-
-      inputs = rule.get('inputs')
-      for rule_source in rule.get('rule_sources', []):
-        (rule_source_dirname, rule_source_basename) = os.path.split(rule_source)
-        (rule_source_root, rule_source_ext) = \
-            os.path.splitext(rule_source_basename)
-
-        outputs = [self.ExpandInputRoot(out, rule_source_root,
-                                        rule_source_dirname)
-                   for out in rule['outputs']]
-
-        dirs = set()
-        for out in outputs:
-          if not out.startswith('$'):
-            print ('WARNING: Rule for target %s writes output to local path %s'
-                   % (self.target, out))
-          dir = os.path.dirname(out)
-          if dir:
-            dirs.add(dir)
-        extra_outputs += outputs
-        if int(rule.get('process_outputs_as_sources', False)):
-          extra_sources.extend(outputs)
-
-        components = []
-        for component in rule['action']:
-          component = self.ExpandInputRoot(component, rule_source_root,
-                                           rule_source_dirname)
-          if '$(RULE_SOURCES)' in component:
-            component = component.replace('$(RULE_SOURCES)',
-                                          rule_source)
-          components.append(component)
-
-        command = gyp.common.EncodePOSIXShellList(components)
-        cd_action = 'cd $(gyp_local_path)/%s; ' % self.path
-        command = cd_action + command
-        if dirs:
-          command = 'mkdir -p %s' % ' '.join(dirs) + '; ' + command
-
-        # We set up a rule to build the first output, and then set up
-        # a rule for each additional output to depend on the first.
-        outputs = map(self.LocalPathify, outputs)
-        main_output = outputs[0]
-        self.WriteLn('%s: gyp_local_path := $(LOCAL_PATH)' % main_output)
-        self.WriteLn('%s: gyp_var_prefix := $(GYP_VAR_PREFIX)' % main_output)
-        self.WriteLn('%s: gyp_intermediate_dir := '
-                     '$(abspath $(gyp_intermediate_dir))' % main_output)
-        self.WriteLn('%s: gyp_shared_intermediate_dir := '
-                     '$(abspath $(gyp_shared_intermediate_dir))' % main_output)
-
-        # See explanation in WriteActions.
-        self.WriteLn('%s: export PATH := '
-                     '$(subst $(ANDROID_BUILD_PATHS),,$(PATH))' % main_output)
-
-        main_output_deps = self.LocalPathify(rule_source)
-        if inputs:
-          main_output_deps += ' '
-          main_output_deps += ' '.join([self.LocalPathify(f) for f in inputs])
-
-        self.WriteLn('%s: %s $(GYP_TARGET_DEPENDENCIES)' %
-                     (main_output, main_output_deps))
-        self.WriteLn('\t%s\n' % command)
-        for output in outputs[1:]:
-          # Make each output depend on the main output, with an empty command
-          # to force make to notice that the mtime has changed.
-          self.WriteLn('%s: %s ;' % (output, main_output))
-        self.WriteLn()
-
-    self.WriteLn()
-
-
-  def WriteCopies(self, copies, extra_outputs):
-    """Write Makefile code for any 'copies' from the gyp input.
-
-    extra_outputs: a list that will be filled in with any outputs of this action
-                   (used to make other pieces dependent on this action)
-    """
-    self.WriteLn('### Generated for copy rule.')
-
-    variable = make.StringToMakefileVariable(self.relative_target + '_copies')
-    outputs = []
-    for copy in copies:
-      for path in copy['files']:
-        # The Android build system does not allow generation of files into the
-        # source tree. The destination should start with a variable, which will
-        # typically be $(gyp_intermediate_dir) or
-        # $(gyp_shared_intermediate_dir). Note that we can't use an assertion
-        # because some of the gyp tests depend on this.
-        if not copy['destination'].startswith('$'):
-          print ('WARNING: Copy rule for target %s writes output to '
-                 'local path %s' % (self.target, copy['destination']))
-
-        # LocalPathify() calls normpath, stripping trailing slashes.
-        path = Sourceify(self.LocalPathify(path))
-        filename = os.path.split(path)[1]
-        output = Sourceify(self.LocalPathify(os.path.join(copy['destination'],
-                                                          filename)))
-
-        self.WriteLn('%s: %s $(GYP_TARGET_DEPENDENCIES) | $(ACP)' %
-                     (output, path))
-        self.WriteLn('\t@echo Copying: $@')
-        self.WriteLn('\t$(hide) mkdir -p $(dir $@)')
-        self.WriteLn('\t$(hide) $(ACP) -rpf $< $@')
-        self.WriteLn()
-        outputs.append(output)
-    self.WriteLn('%s = %s' % (variable,
-                              ' '.join(map(make.QuoteSpaces, outputs))))
-    extra_outputs.append('$(%s)' % variable)
-    self.WriteLn()
-
-
-  def WriteSourceFlags(self, spec, configs):
-    """Write out the flags and include paths used to compile source files for
-    the current target.
-
-    Args:
-      spec, configs: input from gyp.
-    """
-    for configname, config in sorted(configs.iteritems()):
-      extracted_includes = []
-
-      self.WriteLn('\n# Flags passed to both C and C++ files.')
-      cflags, includes_from_cflags = self.ExtractIncludesFromCFlags(
-          config.get('cflags', []) + config.get('cflags_c', []))
-      extracted_includes.extend(includes_from_cflags)
-      self.WriteList(cflags, 'MY_CFLAGS_%s' % configname)
-
-      self.WriteList(config.get('defines'), 'MY_DEFS_%s' % configname,
-                     prefix='-D', quoter=make.EscapeCppDefine)
-
-      self.WriteLn('\n# Include paths placed before CFLAGS/CPPFLAGS')
-      includes = list(config.get('include_dirs', []))
-      includes.extend(extracted_includes)
-      includes = map(Sourceify, map(self.LocalPathify, includes))
-      includes = self.NormalizeIncludePaths(includes)
-      self.WriteList(includes, 'LOCAL_C_INCLUDES_%s' % configname)
-
-      self.WriteLn('\n# Flags passed to only C++ (and not C) files.')
-      self.WriteList(config.get('cflags_cc'), 'LOCAL_CPPFLAGS_%s' % configname)
-
-    self.WriteLn('\nLOCAL_CFLAGS := $(MY_CFLAGS_$(GYP_CONFIGURATION)) '
-                 '$(MY_DEFS_$(GYP_CONFIGURATION))')
-    # Undefine ANDROID for host modules
-    # TODO: the source code should not use macro ANDROID to tell if it's host
-    # or target module.
-    if self.toolset == 'host':
-      self.WriteLn('# Undefine ANDROID for host modules')
-      self.WriteLn('LOCAL_CFLAGS += -UANDROID')
-    self.WriteLn('LOCAL_C_INCLUDES := $(GYP_COPIED_SOURCE_ORIGIN_DIRS) '
-                                     '$(LOCAL_C_INCLUDES_$(GYP_CONFIGURATION))')
-    self.WriteLn('LOCAL_CPPFLAGS := $(LOCAL_CPPFLAGS_$(GYP_CONFIGURATION))')
-    # Android uses separate flags for assembly file invocations, but gyp expects
-    # the same CFLAGS to be applied:
-    self.WriteLn('LOCAL_ASFLAGS := $(LOCAL_CFLAGS)')
-
-
-  def WriteSources(self, spec, configs, extra_sources):
-    """Write Makefile code for any 'sources' from the gyp input.
-    These are source files necessary to build the current target.
-    We need to handle shared_intermediate directory source files as
-    a special case by copying them to the intermediate directory and
-    treating them as a genereated sources. Otherwise the Android build
-    rules won't pick them up.
-
-    Args:
-      spec, configs: input from gyp.
-      extra_sources: Sources generated from Actions or Rules.
-    """
-    sources = filter(make.Compilable, spec.get('sources', []))
-    generated_not_sources = [x for x in extra_sources if not make.Compilable(x)]
-    extra_sources = filter(make.Compilable, extra_sources)
-
-    # Determine and output the C++ extension used by these sources.
-    # We simply find the first C++ file and use that extension.
-    all_sources = sources + extra_sources
-    local_cpp_extension = '.cpp'
-    for source in all_sources:
-      (root, ext) = os.path.splitext(source)
-      if IsCPPExtension(ext):
-        local_cpp_extension = ext
-        break
-    if local_cpp_extension != '.cpp':
-      self.WriteLn('LOCAL_CPP_EXTENSION := %s' % local_cpp_extension)
-
-    # We need to move any non-generated sources that are coming from the
-    # shared intermediate directory out of LOCAL_SRC_FILES and put them
-    # into LOCAL_GENERATED_SOURCES. We also need to move over any C++ files
-    # that don't match our local_cpp_extension, since Android will only
-    # generate Makefile rules for a single LOCAL_CPP_EXTENSION.
-    local_files = []
-    for source in sources:
-      (root, ext) = os.path.splitext(source)
-      if '$(gyp_shared_intermediate_dir)' in source:
-        extra_sources.append(source)
-      elif '$(gyp_intermediate_dir)' in source:
-        extra_sources.append(source)
-      elif IsCPPExtension(ext) and ext != local_cpp_extension:
-        extra_sources.append(source)
-      else:
-        local_files.append(os.path.normpath(os.path.join(self.path, source)))
-
-    # For any generated source, if it is coming from the shared intermediate
-    # directory then we add a Make rule to copy them to the local intermediate
-    # directory first. This is because the Android LOCAL_GENERATED_SOURCES
-    # must be in the local module intermediate directory for the compile rules
-    # to work properly. If the file has the wrong C++ extension, then we add
-    # a rule to copy that to intermediates and use the new version.
-    final_generated_sources = []
-    # If a source file gets copied, we still need to add the orginal source
-    # directory as header search path, for GCC searches headers in the
-    # directory that contains the source file by default.
-    origin_src_dirs = []
-    for source in extra_sources:
-      local_file = source
-      if not '$(gyp_intermediate_dir)/' in local_file:
-        basename = os.path.basename(local_file)
-        local_file = '$(gyp_intermediate_dir)/' + basename
-      (root, ext) = os.path.splitext(local_file)
-      if IsCPPExtension(ext) and ext != local_cpp_extension:
-        local_file = root + local_cpp_extension
-      if local_file != source:
-        self.WriteLn('%s: %s' % (local_file, self.LocalPathify(source)))
-        self.WriteLn('\tmkdir -p $(@D); cp $< $@')
-        origin_src_dirs.append(os.path.dirname(source))
-      final_generated_sources.append(local_file)
-
-    # We add back in all of the non-compilable stuff to make sure that the
-    # make rules have dependencies on them.
-    final_generated_sources.extend(generated_not_sources)
-    self.WriteList(final_generated_sources, 'LOCAL_GENERATED_SOURCES')
-
-    origin_src_dirs = gyp.common.uniquer(origin_src_dirs)
-    origin_src_dirs = map(Sourceify, map(self.LocalPathify, origin_src_dirs))
-    self.WriteList(origin_src_dirs, 'GYP_COPIED_SOURCE_ORIGIN_DIRS')
-
-    self.WriteList(local_files, 'LOCAL_SRC_FILES')
-
-    # Write out the flags used to compile the source; this must be done last
-    # so that GYP_COPIED_SOURCE_ORIGIN_DIRS can be used as an include path.
-    self.WriteSourceFlags(spec, configs)
-
-
-  def ComputeAndroidModule(self, spec):
-    """Return the Android module name used for a gyp spec.
-
-    We use the complete qualified target name to avoid collisions between
-    duplicate targets in different directories. We also add a suffix to
-    distinguish gyp-generated module names.
-    """
-
-    if int(spec.get('android_unmangled_name', 0)):
-      assert self.type != 'shared_library' or self.target.startswith('lib')
-      return self.target
-
-    if self.type == 'shared_library':
-      # For reasons of convention, the Android build system requires that all
-      # shared library modules are named 'libfoo' when generating -l flags.
-      prefix = 'lib_'
-    else:
-      prefix = ''
-
-    if spec['toolset'] == 'host':
-      suffix = '_$(TARGET_$(GYP_VAR_PREFIX)ARCH)_host_gyp'
-    else:
-      suffix = '_gyp'
-
-    if self.path:
-      middle = make.StringToMakefileVariable('%s_%s' % (self.path, self.target))
-    else:
-      middle = make.StringToMakefileVariable(self.target)
-
-    return ''.join([prefix, middle, suffix])
-
-
-  def ComputeOutputParts(self, spec):
-    """Return the 'output basename' of a gyp spec, split into filename + ext.
-
-    Android libraries must be named the same thing as their module name,
-    otherwise the linker can't find them, so product_name and so on must be
-    ignored if we are building a library, and the "lib" prepending is
-    not done for Android.
-    """
-    assert self.type != 'loadable_module' # TODO: not supported?
-
-    target = spec['target_name']
-    target_prefix = ''
-    target_ext = ''
-    if self.type == 'static_library':
-      target = self.ComputeAndroidModule(spec)
-      target_ext = '.a'
-    elif self.type == 'shared_library':
-      target = self.ComputeAndroidModule(spec)
-      target_ext = '.so'
-    elif self.type == 'none':
-      target_ext = '.stamp'
-    elif self.type != 'executable':
-      print ("ERROR: What output file should be generated?",
-             "type", self.type, "target", target)
-
-    if self.type != 'static_library' and self.type != 'shared_library':
-      target_prefix = spec.get('product_prefix', target_prefix)
-      target = spec.get('product_name', target)
-      product_ext = spec.get('product_extension')
-      if product_ext:
-        target_ext = '.' + product_ext
-
-    target_stem = target_prefix + target
-    return (target_stem, target_ext)
-
-
-  def ComputeOutputBasename(self, spec):
-    """Return the 'output basename' of a gyp spec.
-
-    E.g., the loadable module 'foobar' in directory 'baz' will produce
-      'libfoobar.so'
-    """
-    return ''.join(self.ComputeOutputParts(spec))
-
-
-  def ComputeOutput(self, spec):
-    """Return the 'output' (full output path) of a gyp spec.
-
-    E.g., the loadable module 'foobar' in directory 'baz' will produce
-      '$(obj)/baz/libfoobar.so'
-    """
-    if self.type == 'executable':
-      # We install host executables into shared_intermediate_dir so they can be
-      # run by gyp rules that refer to PRODUCT_DIR.
-      path = '$(gyp_shared_intermediate_dir)'
-    elif self.type == 'shared_library':
-      if self.toolset == 'host':
-        path = '$($(GYP_HOST_VAR_PREFIX)HOST_OUT_INTERMEDIATE_LIBRARIES)'
-      else:
-        path = '$($(GYP_VAR_PREFIX)TARGET_OUT_INTERMEDIATE_LIBRARIES)'
-    else:
-      # Other targets just get built into their intermediate dir.
-      if self.toolset == 'host':
-        path = ('$(call intermediates-dir-for,%s,%s,true,,'
-                '$(GYP_HOST_VAR_PREFIX))' % (self.android_class,
-                                             self.android_module))
-      else:
-        path = ('$(call intermediates-dir-for,%s,%s,,,$(GYP_VAR_PREFIX))'
-                % (self.android_class, self.android_module))
-
-    assert spec.get('product_dir') is None # TODO: not supported?
-    return os.path.join(path, self.ComputeOutputBasename(spec))
-
-  def NormalizeIncludePaths(self, include_paths):
-    """ Normalize include_paths.
-    Convert absolute paths to relative to the Android top directory.
-
-    Args:
-      include_paths: A list of unprocessed include paths.
-    Returns:
-      A list of normalized include paths.
-    """
-    normalized = []
-    for path in include_paths:
-      if path[0] == '/':
-        path = gyp.common.RelativePath(path, self.android_top_dir)
-      normalized.append(path)
-    return normalized
-
-  def ExtractIncludesFromCFlags(self, cflags):
-    """Extract includes "-I..." out from cflags
-
-    Args:
-      cflags: A list of compiler flags, which may be mixed with "-I.."
-    Returns:
-      A tuple of lists: (clean_clfags, include_paths). "-I.." is trimmed.
-    """
-    clean_cflags = []
-    include_paths = []
-    for flag in cflags:
-      if flag.startswith('-I'):
-        include_paths.append(flag[2:])
-      else:
-        clean_cflags.append(flag)
-
-    return (clean_cflags, include_paths)
-
-  def FilterLibraries(self, libraries):
-    """Filter the 'libraries' key to separate things that shouldn't be ldflags.
-
-    Library entries that look like filenames should be converted to android
-    module names instead of being passed to the linker as flags.
-
-    Args:
-      libraries: the value of spec.get('libraries')
-    Returns:
-      A tuple (static_lib_modules, dynamic_lib_modules, ldflags)
-    """
-    static_lib_modules = []
-    dynamic_lib_modules = []
-    ldflags = []
-    for libs in libraries:
-      # Libs can have multiple words.
-      for lib in libs.split():
-        # Filter the system libraries, which are added by default by the Android
-        # build system.
-        if (lib == '-lc' or lib == '-lstdc++' or lib == '-lm' or
-            lib.endswith('libgcc.a')):
-          continue
-        match = re.search(r'([^/]+)\.a$', lib)
-        if match:
-          static_lib_modules.append(match.group(1))
-          continue
-        match = re.search(r'([^/]+)\.so$', lib)
-        if match:
-          dynamic_lib_modules.append(match.group(1))
-          continue
-        if lib.startswith('-l'):
-          ldflags.append(lib)
-    return (static_lib_modules, dynamic_lib_modules, ldflags)
-
-
-  def ComputeDeps(self, spec):
-    """Compute the dependencies of a gyp spec.
-
-    Returns a tuple (deps, link_deps), where each is a list of
-    filenames that will need to be put in front of make for either
-    building (deps) or linking (link_deps).
-    """
-    deps = []
-    link_deps = []
-    if 'dependencies' in spec:
-      deps.extend([target_outputs[dep] for dep in spec['dependencies']
-                   if target_outputs[dep]])
-      for dep in spec['dependencies']:
-        if dep in target_link_deps:
-          link_deps.append(target_link_deps[dep])
-      deps.extend(link_deps)
-    return (gyp.common.uniquer(deps), gyp.common.uniquer(link_deps))
-
-
-  def WriteTargetFlags(self, spec, configs, link_deps):
-    """Write Makefile code to specify the link flags and library dependencies.
-
-    spec, configs: input from gyp.
-    link_deps: link dependency list; see ComputeDeps()
-    """
-    # Libraries (i.e. -lfoo)
-    # These must be included even for static libraries as some of them provide
-    # implicit include paths through the build system.
-    libraries = gyp.common.uniquer(spec.get('libraries', []))
-    static_libs, dynamic_libs, ldflags_libs = self.FilterLibraries(libraries)
-
-    if self.type != 'static_library':
-      for configname, config in sorted(configs.iteritems()):
-        ldflags = list(config.get('ldflags', []))
-        self.WriteLn('')
-        self.WriteList(ldflags, 'LOCAL_LDFLAGS_%s' % configname)
-      self.WriteList(ldflags_libs, 'LOCAL_GYP_LIBS')
-      self.WriteLn('LOCAL_LDFLAGS := $(LOCAL_LDFLAGS_$(GYP_CONFIGURATION)) '
-                   '$(LOCAL_GYP_LIBS)')
-
-    # Link dependencies (i.e. other gyp targets this target depends on)
-    # These need not be included for static libraries as within the gyp build
-    # we do not use the implicit include path mechanism.
-    if self.type != 'static_library':
-      static_link_deps = [x[1] for x in link_deps if x[0] == 'static']
-      shared_link_deps = [x[1] for x in link_deps if x[0] == 'shared']
-    else:
-      static_link_deps = []
-      shared_link_deps = []
-
-    # Only write the lists if they are non-empty.
-    if static_libs or static_link_deps:
-      self.WriteLn('')
-      self.WriteList(static_libs + static_link_deps,
-                     'LOCAL_STATIC_LIBRARIES')
-      self.WriteLn('# Enable grouping to fix circular references')
-      self.WriteLn('LOCAL_GROUP_STATIC_LIBRARIES := true')
-    if dynamic_libs or shared_link_deps:
-      self.WriteLn('')
-      self.WriteList(dynamic_libs + shared_link_deps,
-                     'LOCAL_SHARED_LIBRARIES')
-
-
-  def WriteTarget(self, spec, configs, deps, link_deps, part_of_all,
-                  write_alias_target):
-    """Write Makefile code to produce the final target of the gyp spec.
-
-    spec, configs: input from gyp.
-    deps, link_deps: dependency lists; see ComputeDeps()
-    part_of_all: flag indicating this target is part of 'all'
-    write_alias_target: flag indicating whether to create short aliases for this
-                        target
-    """
-    self.WriteLn('### Rules for final target.')
-
-    if self.type != 'none':
-      self.WriteTargetFlags(spec, configs, link_deps)
-
-    settings = spec.get('aosp_build_settings', {})
-    if settings:
-      self.WriteLn('### Set directly by aosp_build_settings.')
-      for k, v in settings.iteritems():
-        if isinstance(v, list):
-          self.WriteList(v, k)
-        else:
-          self.WriteLn('%s := %s' % (k, make.QuoteIfNecessary(v)))
-      self.WriteLn('')
-
-    # Add to the set of targets which represent the gyp 'all' target. We use the
-    # name 'gyp_all_modules' as the Android build system doesn't allow the use
-    # of the Make target 'all' and because 'all_modules' is the equivalent of
-    # the Make target 'all' on Android.
-    if part_of_all and write_alias_target:
-      self.WriteLn('# Add target alias to "gyp_all_modules" target.')
-      self.WriteLn('.PHONY: gyp_all_modules')
-      self.WriteLn('gyp_all_modules: %s' % self.android_module)
-      self.WriteLn('')
-
-    # Add an alias from the gyp target name to the Android module name. This
-    # simplifies manual builds of the target, and is required by the test
-    # framework.
-    if self.target != self.android_module and write_alias_target:
-      self.WriteLn('# Alias gyp target name.')
-      self.WriteLn('.PHONY: %s' % self.target)
-      self.WriteLn('%s: %s' % (self.target, self.android_module))
-      self.WriteLn('')
-
-    # Add the command to trigger build of the target type depending
-    # on the toolset. Ex: BUILD_STATIC_LIBRARY vs. BUILD_HOST_STATIC_LIBRARY
-    # NOTE: This has to come last!
-    modifier = ''
-    if self.toolset == 'host':
-      modifier = 'HOST_'
-    if self.type == 'static_library':
-      self.WriteLn('include $(BUILD_%sSTATIC_LIBRARY)' % modifier)
-    elif self.type == 'shared_library':
-      self.WriteLn('LOCAL_PRELINK_MODULE := false')
-      self.WriteLn('include $(BUILD_%sSHARED_LIBRARY)' % modifier)
-    elif self.type == 'executable':
-      # Executables are for build and test purposes only, so they're installed
-      # to a directory that doesn't get included in the system image.
-      self.WriteLn('LOCAL_MODULE_PATH := $(gyp_shared_intermediate_dir)')
-      self.WriteLn('include $(BUILD_%sEXECUTABLE)' % modifier)
-    else:
-      self.WriteLn('LOCAL_MODULE_PATH := $(PRODUCT_OUT)/gyp_stamp')
-      self.WriteLn('LOCAL_UNINSTALLABLE_MODULE := true')
-      if self.toolset == 'target':
-        self.WriteLn('LOCAL_2ND_ARCH_VAR_PREFIX := $(GYP_VAR_PREFIX)')
-      else:
-        self.WriteLn('LOCAL_2ND_ARCH_VAR_PREFIX := $(GYP_HOST_VAR_PREFIX)')
-      self.WriteLn()
-      self.WriteLn('include $(BUILD_SYSTEM)/base_rules.mk')
-      self.WriteLn()
-      self.WriteLn('$(LOCAL_BUILT_MODULE): $(LOCAL_ADDITIONAL_DEPENDENCIES)')
-      self.WriteLn('\t$(hide) echo "Gyp timestamp: $@"')
-      self.WriteLn('\t$(hide) mkdir -p $(dir $@)')
-      self.WriteLn('\t$(hide) touch $@')
-      self.WriteLn()
-      self.WriteLn('LOCAL_2ND_ARCH_VAR_PREFIX :=')
-
-
-  def WriteList(self, value_list, variable=None, prefix='',
-                quoter=make.QuoteIfNecessary, local_pathify=False):
-    """Write a variable definition that is a list of values.
-
-    E.g. WriteList(['a','b'], 'foo', prefix='blah') writes out
-         foo = blaha blahb
-    but in a pretty-printed style.
-    """
-    values = ''
-    if value_list:
-      value_list = [quoter(prefix + l) for l in value_list]
-      if local_pathify:
-        value_list = [self.LocalPathify(l) for l in value_list]
-      values = ' \\\n\t' + ' \\\n\t'.join(value_list)
-    self.fp.write('%s :=%s\n\n' % (variable, values))
-
-
-  def WriteLn(self, text=''):
-    self.fp.write(text + '\n')
-
-
-  def LocalPathify(self, path):
-    """Convert a subdirectory-relative path into a normalized path which starts
-    with the make variable $(LOCAL_PATH) (i.e. the top of the project tree).
-    Absolute paths, or paths that contain variables, are just normalized."""
-    if '$(' in path or os.path.isabs(path):
-      # path is not a file in the project tree in this case, but calling
-      # normpath is still important for trimming trailing slashes.
-      return os.path.normpath(path)
-    local_path = os.path.join('$(LOCAL_PATH)', self.path, path)
-    local_path = os.path.normpath(local_path)
-    # Check that normalizing the path didn't ../ itself out of $(LOCAL_PATH)
-    # - i.e. that the resulting path is still inside the project tree. The
-    # path may legitimately have ended up containing just $(LOCAL_PATH), though,
-    # so we don't look for a slash.
-    assert local_path.startswith('$(LOCAL_PATH)'), (
-           'Path %s attempts to escape from gyp path %s !)' % (path, self.path))
-    return local_path
-
-
-  def ExpandInputRoot(self, template, expansion, dirname):
-    if '%(INPUT_ROOT)s' not in template and '%(INPUT_DIRNAME)s' not in template:
-      return template
-    path = template % {
-        'INPUT_ROOT': expansion,
-        'INPUT_DIRNAME': dirname,
-        }
-    return os.path.normpath(path)
-
-
-def PerformBuild(data, configurations, params):
-  # The android backend only supports the default configuration.
-  options = params['options']
-  makefile = os.path.abspath(os.path.join(options.toplevel_dir,
-                                          'GypAndroid.mk'))
-  env = dict(os.environ)
-  env['ONE_SHOT_MAKEFILE'] = makefile
-  arguments = ['make', '-C', os.environ['ANDROID_BUILD_TOP'], 'gyp_all_modules']
-  print 'Building: %s' % arguments
-  subprocess.check_call(arguments, env=env)
-
-
-def GenerateOutput(target_list, target_dicts, data, params):
-  options = params['options']
-  generator_flags = params.get('generator_flags', {})
-  builddir_name = generator_flags.get('output_dir', 'out')
-  limit_to_target_all = generator_flags.get('limit_to_target_all', False)
-  write_alias_targets = generator_flags.get('write_alias_targets', True)
-  sdk_version = generator_flags.get('aosp_sdk_version', 19)
-  android_top_dir = os.environ.get('ANDROID_BUILD_TOP')
-  assert android_top_dir, '$ANDROID_BUILD_TOP not set; you need to run lunch.'
-
-  def CalculateMakefilePath(build_file, base_name):
-    """Determine where to write a Makefile for a given gyp file."""
-    # Paths in gyp files are relative to the .gyp file, but we want
-    # paths relative to the source root for the master makefile.  Grab
-    # the path of the .gyp file as the base to relativize against.
-    # E.g. "foo/bar" when we're constructing targets for "foo/bar/baz.gyp".
-    base_path = gyp.common.RelativePath(os.path.dirname(build_file),
-                                        options.depth)
-    # We write the file in the base_path directory.
-    output_file = os.path.join(options.depth, base_path, base_name)
-    assert not options.generator_output, (
-        'The Android backend does not support options.generator_output.')
-    base_path = gyp.common.RelativePath(os.path.dirname(build_file),
-                                        options.toplevel_dir)
-    return base_path, output_file
-
-  # TODO:  search for the first non-'Default' target.  This can go
-  # away when we add verification that all targets have the
-  # necessary configurations.
-  default_configuration = None
-  toolsets = set([target_dicts[target]['toolset'] for target in target_list])
-  for target in target_list:
-    spec = target_dicts[target]
-    if spec['default_configuration'] != 'Default':
-      default_configuration = spec['default_configuration']
-      break
-  if not default_configuration:
-    default_configuration = 'Default'
-
-  srcdir = '.'
-  makefile_name = 'GypAndroid' + options.suffix + '.mk'
-  makefile_path = os.path.join(options.toplevel_dir, makefile_name)
-  assert not options.generator_output, (
-      'The Android backend does not support options.generator_output.')
-  gyp.common.EnsureDirExists(makefile_path)
-  root_makefile = open(makefile_path, 'w')
-
-  root_makefile.write(header)
-
-  # We set LOCAL_PATH just once, here, to the top of the project tree. This
-  # allows all the other paths we use to be relative to the Android.mk file,
-  # as the Android build system expects.
-  root_makefile.write('\nLOCAL_PATH := $(call my-dir)\n')
-
-  # Find the list of targets that derive from the gyp file(s) being built.
-  needed_targets = set()
-  for build_file in params['build_files']:
-    for target in gyp.common.AllTargets(target_list, target_dicts, build_file):
-      needed_targets.add(target)
-
-  build_files = set()
-  include_list = set()
-  android_modules = {}
-  for qualified_target in target_list:
-    build_file, target, toolset = gyp.common.ParseQualifiedTarget(
-        qualified_target)
-    relative_build_file = gyp.common.RelativePath(build_file,
-                                                  options.toplevel_dir)
-    build_files.add(relative_build_file)
-    included_files = data[build_file]['included_files']
-    for included_file in included_files:
-      # The included_files entries are relative to the dir of the build file
-      # that included them, so we have to undo that and then make them relative
-      # to the root dir.
-      relative_include_file = gyp.common.RelativePath(
-          gyp.common.UnrelativePath(included_file, build_file),
-          options.toplevel_dir)
-      abs_include_file = os.path.abspath(relative_include_file)
-      # If the include file is from the ~/.gyp dir, we should use absolute path
-      # so that relocating the src dir doesn't break the path.
-      if (params['home_dot_gyp'] and
-          abs_include_file.startswith(params['home_dot_gyp'])):
-        build_files.add(abs_include_file)
-      else:
-        build_files.add(relative_include_file)
-
-    base_path, output_file = CalculateMakefilePath(build_file,
-        target + '.' + toolset + options.suffix + '.mk')
-
-    spec = target_dicts[qualified_target]
-    configs = spec['configurations']
-
-    part_of_all = qualified_target in needed_targets
-    if limit_to_target_all and not part_of_all:
-      continue
-
-    relative_target = gyp.common.QualifiedTarget(relative_build_file, target,
-                                                 toolset)
-    writer = AndroidMkWriter(android_top_dir)
-    android_module = writer.Write(qualified_target, relative_target, base_path,
-                                  output_file, spec, configs,
-                                  part_of_all=part_of_all,
-                                  write_alias_target=write_alias_targets,
-                                  sdk_version=sdk_version)
-    if android_module in android_modules:
-      print ('ERROR: Android module names must be unique. The following '
-             'targets both generate Android module name %s.\n  %s\n  %s' %
-             (android_module, android_modules[android_module],
-              qualified_target))
-      return
-    android_modules[android_module] = qualified_target
-
-    # Our root_makefile lives at the source root.  Compute the relative path
-    # from there to the output_file for including.
-    mkfile_rel_path = gyp.common.RelativePath(output_file,
-                                              os.path.dirname(makefile_path))
-    include_list.add(mkfile_rel_path)
-
-  root_makefile.write('GYP_CONFIGURATION ?= %s\n' % default_configuration)
-  root_makefile.write('GYP_VAR_PREFIX ?=\n')
-  root_makefile.write('GYP_HOST_VAR_PREFIX ?=\n')
-  root_makefile.write('GYP_HOST_MULTILIB ?=\n')
-
-  # Write out the sorted list of includes.
-  root_makefile.write('\n')
-  for include_file in sorted(include_list):
-    root_makefile.write('include $(LOCAL_PATH)/' + include_file + '\n')
-  root_makefile.write('\n')
-
-  if write_alias_targets:
-    root_makefile.write(ALL_MODULES_FOOTER)
-
-  root_makefile.close()