Update idlsync.py to pull in dependencies required for chrome api generation.

third_party/chrome/tools/compiler.py

-#!/usr/bin/env python
-# Copyright (c) 2012 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.
-"""Generator for C++ structs from api json files.
-
-The purpose of this tool is to remove the need for hand-written code that
-converts to and from base::Value types when receiving javascript api calls.
-Originally written for generating code for extension apis. Reference schemas
-are in chrome/common/extensions/api.
-
-Usage example:
-  compiler.py --root /home/Work/src --namespace extensions windows.json
-    tabs.json
-  compiler.py --destdir gen --root /home/Work/src
-    --namespace extensions windows.json tabs.json
-"""
-
-import cc_generator
-import cpp_type_generator
-import h_generator
-import idl_schema
-import json_schema
-import model
-import schema_bundle_generator
-
-import optparse
-import os.path
-import sys
-
-def load_schema(schema):
-  schema_filename, schema_extension = os.path.splitext(schema)
-
-  if schema_extension == '.json':
-    api_defs = json_schema.Load(schema)
-  elif schema_extension == '.idl':
-    api_defs = idl_schema.Load(schema)
-  else:
-    sys.exit("Did not recognize file extension %s for schema %s" %
-             (schema_extension, schema))
-  if len(api_defs) != 1:
-    sys.exit("File %s has multiple schemas. Files are only allowed to contain a"
-             " single schema." % schema)
-
-  return api_defs
-
-def handle_single_schema(filename, dest_dir, root, root_namespace):
-  schema = os.path.normpath(filename)
-  schema_filename, schema_extension = os.path.splitext(schema)
-  path, short_filename = os.path.split(schema_filename)
-  api_defs = json_schema.DeleteNocompileNodes(load_schema(schema))
-
-  api_model = model.Model()
-
-  for target_namespace in api_defs:
-    referenced_schemas = target_namespace.get('dependencies', [])
-    # Load type dependencies into the model.
-    # TODO(miket): do we need this in IDL?
-    for referenced_schema in referenced_schemas:
-      split_schema = referenced_schema.split(':', 1)
-      if len(split_schema) > 1:
-        if split_schema[0] != 'api':
-          continue
-        else:
-          referenced_schema = split_schema[1]
-
-      referenced_schema_path = os.path.join(
-          os.path.dirname(schema), referenced_schema + '.json')
-      referenced_api_defs = json_schema.Load(referenced_schema_path)
-
-      for namespace in referenced_api_defs:
-        api_model.AddNamespace(
-            namespace,
-            os.path.relpath(referenced_schema_path, opts.root))
-
-    # Gets the relative path from opts.root to the schema to correctly determine
-    # the include path.
-    relpath = os.path.relpath(schema, opts.root)
-    namespace = api_model.AddNamespace(target_namespace,
-                                       relpath,
-                                       include_compiler_options=True)
-    if not namespace:
-      continue
-
-    if short_filename != namespace.unix_name:
-      sys.exit("Filename %s is illegal. Name files using unix_hacker style." %
-               filename)
-
-    # The output filename must match the input filename for gyp to deal with it
-    # properly.
-    out_file = namespace.unix_name
-    type_generator = cpp_type_generator.CppTypeGenerator(
-        root_namespace, namespace, namespace.unix_name)
-    for referenced_namespace in api_model.namespaces.values():
-      if referenced_namespace == namespace:
-        continue
-      type_generator.AddNamespace(
-          referenced_namespace,
-          referenced_namespace.unix_name)
-
-    h_code = (h_generator.HGenerator(namespace, type_generator)
-        .Generate().Render())
-    cc_code = (cc_generator.CCGenerator(namespace, type_generator)
-        .Generate().Render())
-
-    if dest_dir:
-      with open(
-          os.path.join(dest_dir, namespace.source_file_dir, out_file + '.cc'),
-          'w') as cc_file:
-        cc_file.write(cc_code)
-      with open(
-          os.path.join(dest_dir, namespace.source_file_dir, out_file + '.h'),
-          'w') as h_file:
-        h_file.write(h_code)
-    else:
-      print '%s.h' % out_file
-      print
-      print h_code
-      print
-      print '%s.cc' % out_file
-      print
-      print cc_code
-
-def handle_bundle_schema(filenames, dest_dir, root, root_namespace):
-  # Merge the source files into a single list of schemas.
-  api_defs = []
-  for filename in filenames:
-    schema = os.path.normpath(filename)
-    schema_filename, schema_extension = os.path.splitext(schema)
-    api_defs.extend(load_schema(schema))
-
-  api_model = model.Model()
-  relpath = os.path.relpath(os.path.normpath(filenames[0]), root)
-
-  for target_namespace, schema_filename in zip(api_defs, filenames):
-    namespace = api_model.AddNamespace(target_namespace,
-                                       relpath,
-                                       include_compiler_options=True)
-    path, filename = os.path.split(schema_filename)
-    short_filename, extension = os.path.splitext(filename)
-
-    # Filenames are checked against the unix_names of the namespaces they
-    # generate because the gyp uses the names of the JSON files to generate
-    # the names of the .cc and .h files. We want these to be using unix_names.
-    if namespace.unix_name != short_filename:
-      sys.exit("Filename %s is illegal. Name files using unix_hacker style." %
-               schema_filename)
-
-  type_generator = cpp_type_generator.CppTypeGenerator(root_namespace)
-  for referenced_namespace in api_model.namespaces.values():
-    type_generator.AddNamespace(
-        referenced_namespace,
-        referenced_namespace.unix_name)
-
-  generator = schema_bundle_generator.SchemaBundleGenerator(
-      root, api_model, api_defs, type_generator)
-  api_h_code = generator.GenerateAPIHeader().Render()
-  schemas_h_code = generator.GenerateSchemasHeader().Render()
-  schemas_cc_code = generator.GenerateSchemasCC().Render()
-
-  if dest_dir:
-    basedir = os.path.join(dest_dir, 'chrome/common/extensions/api')
-    with open(os.path.join(basedir, 'generated_api.h'), 'w') as h_file:
-      h_file.write(api_h_code)
-    with open(os.path.join(basedir, 'generated_schemas.h'), 'w') as h_file:
-      h_file.write(schemas_h_code)
-    with open(os.path.join(basedir, 'generated_schemas.cc'), 'w') as cc_file:
-      cc_file.write(schemas_cc_code)
-  else:
-    print 'generated_api.h'
-    print
-    print api_h_code
-    print
-    print 'generated_schemas.h'
-    print
-    print schemas_h_code
-    print
-    print 'generated_schemas.cc'
-    print
-    print schemas_cc_code
-
-if __name__ == '__main__':
-  parser = optparse.OptionParser(
-      description='Generates a C++ model of an API from JSON schema',
-      usage='usage: %prog [option]... schema')
-  parser.add_option('-r', '--root', default='.',
-      help='logical include root directory. Path to schema files from specified'
-      'dir will be the include path.')
-  parser.add_option('-d', '--destdir',
-      help='root directory to output generated files.')
-  parser.add_option('-n', '--namespace', default='generated_api_schemas',
-      help='C++ namespace for generated files. e.g extensions::api.')
-  parser.add_option('-b', '--bundle', action="store_true", help=
-'''if supplied, causes compiler to generate bundle files for the given set of
-source files.''')
-
-  (opts, args) = parser.parse_args()
-
-  if not args:
-    sys.exit(0) # This is OK as a no-op
-  dest_dir = opts.destdir
-  root_namespace = opts.namespace
-
-  if opts.bundle:
-    handle_bundle_schema(args, dest_dir, opts.root, root_namespace)
-  else:
-    handle_single_schema(args[0], dest_dir, opts.root, root_namespace)