Ejemplo n.º 1
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 def setUp(self):
   server_instance = ServerInstance.ForTest(
       TestFileSystem(_TEST_DATA, relative_to=CHROME_EXTENSIONS))
   # APIListDataSource takes a request but doesn't use it,
   # so put None
   self._api_list = APIListDataSource(server_instance, None)
   self.maxDiff = None
Ejemplo n.º 2
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    def __init__(self, channel, object_store_creator_factory, svn_file_system,
                 github_file_system):
        self.svn_file_system = svn_file_system

        self.github_file_system = github_file_system

        self.compiled_fs_factory = CompiledFileSystem.Factory(
            svn_file_system, object_store_creator_factory)

        self.api_list_data_source_factory = APIListDataSource.Factory(
            self.compiled_fs_factory, svn_constants.API_PATH,
            svn_constants.PUBLIC_TEMPLATE_PATH)

        self.api_data_source_factory = APIDataSource.Factory(
            self.compiled_fs_factory, svn_constants.API_PATH)

        self.ref_resolver_factory = ReferenceResolver.Factory(
            self.api_data_source_factory, self.api_list_data_source_factory,
            object_store_creator_factory)

        self.api_data_source_factory.SetReferenceResolverFactory(
            self.ref_resolver_factory)

        # Note: samples are super slow in the dev server because it doesn't support
        # async fetch, so disable them. If you actually want to test samples, then
        # good luck, and modify _IsSamplesDisabled at the top.
        if _IsSamplesDisabled():
            svn_fs_for_samples = EmptyDirFileSystem()
        else:
            svn_fs_for_samples = self.svn_file_system
        self.samples_data_source_factory = SamplesDataSource.Factory(
            channel, svn_fs_for_samples, self.github_file_system,
            self.ref_resolver_factory, object_store_creator_factory,
            svn_constants.EXAMPLES_PATH)

        self.api_data_source_factory.SetSamplesDataSourceFactory(
            self.samples_data_source_factory)

        self.intro_data_source_factory = IntroDataSource.Factory(
            self.compiled_fs_factory, self.ref_resolver_factory,
            [svn_constants.INTRO_PATH, svn_constants.ARTICLE_PATH])

        self.sidenav_data_source_factory = SidenavDataSource.Factory(
            self.compiled_fs_factory, svn_constants.JSON_PATH)

        self.template_data_source_factory = TemplateDataSource.Factory(
            channel, self.api_data_source_factory,
            self.api_list_data_source_factory, self.intro_data_source_factory,
            self.samples_data_source_factory, self.sidenav_data_source_factory,
            self.compiled_fs_factory, self.ref_resolver_factory,
            svn_constants.PUBLIC_TEMPLATE_PATH,
            svn_constants.PRIVATE_TEMPLATE_PATH)

        self.example_zipper = ExampleZipper(self.compiled_fs_factory,
                                            svn_constants.DOCS_PATH)

        self.path_canonicalizer = PathCanonicalizer(channel,
                                                    self.compiled_fs_factory)

        self.content_cache = self.compiled_fs_factory.GetOrCreateIdentity()
Ejemplo n.º 3
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 def setUp(self):
     server_instance = ServerInstance.ForTest(TestFileSystem(_TEST_DATA))
     self._factory = APIListDataSource.Factory(
         server_instance.compiled_fs_factory,
         server_instance.host_file_system_provider.GetTrunk(),
         server_instance.features_bundle,
         server_instance.object_store_creator)
 def setUp(self):
     server_instance = ServerInstance.ForTest(
         TestFileSystem(_TEST_DATA, relative_to=EXTENSIONS))
     self._factory = APIListDataSource.Factory(
         server_instance.compiled_fs_factory,
         server_instance.host_file_system_provider.GetTrunk(),
         server_instance.features_bundle,
         server_instance.object_store_creator, server_instance.api_models,
         server_instance.availability_finder,
         server_instance.api_categorizer)
     self.maxDiff = None
Ejemplo n.º 5
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def _GetInstanceForBranch(channel_name, local_path):
  branch = BRANCH_UTILITY.GetBranchNumberForChannelName(channel_name)

  # The key for the server is a tuple of |channel_name| with |branch|, since
  # sometimes stable and beta point to the same branch.
  instance_key = _MakeInstanceKey(channel_name, branch)
  instance = SERVER_INSTANCES.get(instance_key, None)
  if instance is not None:
    return instance

  branch_memcache = InMemoryObjectStore(branch)
  if branch == 'local':
    file_system = LocalFileSystem(local_path)
  else:
    file_system = _CreateMemcacheFileSystem(branch, branch_memcache)

  cache_factory = CompiledFileSystem.Factory(file_system, branch_memcache)
  api_list_data_source_factory = APIListDataSource.Factory(cache_factory,
                                                           file_system,
                                                           API_PATH,
                                                           PUBLIC_TEMPLATE_PATH)
  intro_data_source_factory = IntroDataSource.Factory(
      cache_factory,
      [INTRO_PATH, ARTICLE_PATH])
  samples_data_source_factory = SamplesDataSource.Factory(
      channel_name,
      file_system,
      GITHUB_FILE_SYSTEM,
      cache_factory,
      GITHUB_COMPILED_FILE_SYSTEM,
      api_list_data_source_factory,
      EXAMPLES_PATH)
  api_data_source_factory = APIDataSource.Factory(cache_factory,
                                                  API_PATH,
                                                  samples_data_source_factory)
  template_data_source_factory = TemplateDataSource.Factory(
      channel_name,
      api_data_source_factory,
      api_list_data_source_factory,
      intro_data_source_factory,
      samples_data_source_factory,
      KNOWN_ISSUES_DATA_SOURCE,
      cache_factory,
      PUBLIC_TEMPLATE_PATH,
      PRIVATE_TEMPLATE_PATH)
  example_zipper = ExampleZipper(file_system,
                                 cache_factory,
                                 DOCS_PATH)

  instance = ServerInstance(template_data_source_factory,
                            example_zipper,
                            cache_factory)
  SERVER_INSTANCES[instance_key] = instance
  return instance
Ejemplo n.º 6
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    def __init__(self, channel, object_store_creator_factory, svn_file_system,
                 github_file_system):
        self.svn_file_system = svn_file_system

        self.github_file_system = github_file_system

        self.compiled_fs_factory = CompiledFileSystem.Factory(
            svn_file_system, object_store_creator_factory)

        self.api_list_data_source_factory = APIListDataSource.Factory(
            self.compiled_fs_factory, svn_constants.API_PATH,
            svn_constants.PUBLIC_TEMPLATE_PATH)

        self.api_data_source_factory = APIDataSource.Factory(
            self.compiled_fs_factory, svn_constants.API_PATH)

        self.ref_resolver_factory = ReferenceResolver.Factory(
            self.api_data_source_factory, self.api_list_data_source_factory,
            object_store_creator_factory)

        self.api_data_source_factory.SetReferenceResolverFactory(
            self.ref_resolver_factory)

        self.samples_data_source_factory = SamplesDataSource.Factory(
            channel, self.svn_file_system, ServerInstance.github_file_system,
            self.ref_resolver_factory, object_store_creator_factory,
            svn_constants.EXAMPLES_PATH)

        self.api_data_source_factory.SetSamplesDataSourceFactory(
            self.samples_data_source_factory)

        self.intro_data_source_factory = IntroDataSource.Factory(
            self.compiled_fs_factory, self.ref_resolver_factory,
            [svn_constants.INTRO_PATH, svn_constants.ARTICLE_PATH])

        self.sidenav_data_source_factory = SidenavDataSource.Factory(
            self.compiled_fs_factory, svn_constants.JSON_PATH)

        self.template_data_source_factory = TemplateDataSource.Factory(
            channel, self.api_data_source_factory,
            self.api_list_data_source_factory, self.intro_data_source_factory,
            self.samples_data_source_factory, self.sidenav_data_source_factory,
            self.compiled_fs_factory, self.ref_resolver_factory,
            svn_constants.PUBLIC_TEMPLATE_PATH,
            svn_constants.PRIVATE_TEMPLATE_PATH)

        self.example_zipper = ExampleZipper(self.compiled_fs_factory,
                                            svn_constants.DOCS_PATH)

        self.path_canonicalizer = PathCanonicalizer(channel,
                                                    self.compiled_fs_factory)

        self.content_cache = self.compiled_fs_factory.GetOrCreateIdentity()
Ejemplo n.º 7
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    def __init__(self, channel, object_store_creator, host_file_system,
                 app_samples_file_system, base_path, compiled_fs_factory):
        self.channel = channel

        self.object_store_creator = object_store_creator

        self.host_file_system = host_file_system

        self.app_samples_file_system = app_samples_file_system

        self.compiled_host_fs_factory = compiled_fs_factory

        self.api_list_data_source_factory = APIListDataSource.Factory(
            self.compiled_host_fs_factory, svn_constants.API_PATH,
            svn_constants.PUBLIC_TEMPLATE_PATH)

        self.api_data_source_factory = APIDataSource.Factory(
            self.compiled_host_fs_factory, svn_constants.API_PATH)

        self.ref_resolver_factory = ReferenceResolver.Factory(
            self.api_data_source_factory, self.api_list_data_source_factory,
            object_store_creator)

        self.api_data_source_factory.SetReferenceResolverFactory(
            self.ref_resolver_factory)

        # Note: samples are super slow in the dev server because it doesn't support
        # async fetch, so disable them.
        if IsDevServer():
            extension_samples_fs = EmptyDirFileSystem()
        else:
            extension_samples_fs = self.host_file_system
        self.samples_data_source_factory = SamplesDataSource.Factory(
            channel, extension_samples_fs,
            CompiledFileSystem.Factory(extension_samples_fs,
                                       object_store_creator),
            self.app_samples_file_system,
            CompiledFileSystem.Factory(self.app_samples_file_system,
                                       object_store_creator),
            self.ref_resolver_factory, svn_constants.EXAMPLES_PATH)

        self.api_data_source_factory.SetSamplesDataSourceFactory(
            self.samples_data_source_factory)

        self.intro_data_source_factory = IntroDataSource.Factory(
            self.compiled_host_fs_factory, self.ref_resolver_factory,
            [svn_constants.INTRO_PATH, svn_constants.ARTICLE_PATH])

        self.sidenav_data_source_factory = SidenavDataSource.Factory(
            self.compiled_host_fs_factory, svn_constants.JSON_PATH, base_path)

        self.template_data_source_factory = TemplateDataSource.Factory(
            channel, self.api_data_source_factory,
            self.api_list_data_source_factory, self.intro_data_source_factory,
            self.samples_data_source_factory, self.sidenav_data_source_factory,
            self.compiled_host_fs_factory, self.ref_resolver_factory,
            svn_constants.PUBLIC_TEMPLATE_PATH,
            svn_constants.PRIVATE_TEMPLATE_PATH, base_path)

        self.example_zipper = ExampleZipper(self.compiled_host_fs_factory,
                                            svn_constants.DOCS_PATH)

        self.path_canonicalizer = PathCanonicalizer(
            channel, self.compiled_host_fs_factory)

        self.content_cache = self.compiled_host_fs_factory.CreateIdentity(
            ServerInstance)
Ejemplo n.º 8
0
 def setUp(self):
     self._factory = APIListDataSource.Factory(
         CompiledFileSystem.Factory(TestFileSystem(deepcopy(_TEST_DATA)),
                                    ObjectStoreCreator.ForTest()), 'api',
         'public')
Ejemplo n.º 9
0
class APIListDataSourceTest(unittest.TestCase):
  def setUp(self):
    server_instance = ServerInstance.ForTest(
        TestFileSystem(_TEST_DATA, relative_to=CHROME_EXTENSIONS))
    # APIListDataSource takes a request but doesn't use it,
    # so put None
    self._api_list = APIListDataSource(server_instance, None)
    self.maxDiff = None

  def testApps(self):
    self.assertEqual({
        'stable': [
          {
            'name': 'alarms',
            'platforms': ['apps', 'extensions'],
            'version': 5,
            'description': u'<code>alarms</code>'
          },
          {
            'name': 'app.window',
            'platforms': ['apps'],
            # Availability logic will look for a camelCase format filename
            # (i.e. 'app.window.html') at version 20 and below, but the
            # unix_name format above won't be found at these versions.
            'version': 21,
            'description': u'<code>app.window</code>'
          },
          {
            'name': 'storage',
            'platforms': ['apps', 'extensions'],
            'last': True,
            'version': 5,
            'description': u'<code>storage</code>'
          }],
        'dev': [
          {
            'name': 'sockets.udp',
            'platforms': ['apps', 'extensions'],
            'last': True,
            'description': u'<code>sockets.udp</code>'
          }],
        'beta': [],
        'trunk': []
        }, self._api_list.get('apps').get('chrome'))

  def testExperimentalApps(self):
    self.assertEqual([
        {
          'name': 'experimental.bluetooth',
          'platforms': ['apps'],
          'description': u'<code>experimental.bluetooth</code>'
        },
        {
          'name': 'experimental.power',
          'platforms': ['apps', 'extensions'],
          'last': True,
          'description': u'<code>experimental.power</code>'
        }], self._api_list.get('apps').get('experimental'))

  def testExtensions(self):
    self.assertEqual({
        'stable': [
          {
            'name': 'alarms',
            'platforms': ['apps', 'extensions'],
            'version': 5,
            'description': u'<code>alarms</code>'
          },
          {
            'name': 'browserAction',
            'platforms': ['extensions'],
            # See comment above for 'app.window'.
            'version': 21,
            'description': u'<code>browserAction</code>'
          },
          {
            'name': 'infobars',
            'platforms': ['extensions'],
            'version': 5,
            'description': u'<code>infobars</code>'
          },
          {
            'name': 'storage',
            'platforms': ['apps', 'extensions'],
            'last': True,
            'version': 5,
            'description': u'<code>storage</code>'
          }],
        'dev': [
          {
            'name': 'sockets.udp',
            'platforms': ['apps', 'extensions'],
            'last': True,
            'description': u'<code>sockets.udp</code>'
          }],
        'beta': [],
        'trunk': []
        }, self._api_list.get('extensions').get('chrome'))

  def testExperimentalExtensions(self):
    self.assertEqual([
        {
          'name': 'experimental.history',
          'platforms': ['extensions'],
          'description': u'<code>experimental.history</code>'
        },
        {
          'name': 'experimental.power',
          'platforms': ['apps', 'extensions'],
          'description': u'<code>experimental.power</code>',
          'last': True
        }], self._api_list.get('extensions').get('experimental'))
    def __init__(self, object_store_creator, host_file_system,
                 app_samples_file_system, base_path, compiled_fs_factory,
                 branch_utility, host_file_system_creator):
        self.object_store_creator = object_store_creator

        self.host_file_system = host_file_system

        self.app_samples_file_system = app_samples_file_system

        self.compiled_host_fs_factory = compiled_fs_factory

        self.host_file_system_creator = host_file_system_creator

        self.availability_finder_factory = AvailabilityFinder.Factory(
            object_store_creator, self.compiled_host_fs_factory,
            branch_utility, host_file_system_creator)

        self.api_list_data_source_factory = APIListDataSource.Factory(
            self.compiled_host_fs_factory, self.host_file_system,
            svn_constants.API_PATH, svn_constants.PUBLIC_TEMPLATE_PATH)

        self.api_data_source_factory = APIDataSource.Factory(
            self.compiled_host_fs_factory, svn_constants.API_PATH,
            self.availability_finder_factory)

        self.ref_resolver_factory = ReferenceResolver.Factory(
            self.api_data_source_factory, self.api_list_data_source_factory,
            object_store_creator)

        self.api_data_source_factory.SetReferenceResolverFactory(
            self.ref_resolver_factory)

        # Note: samples are super slow in the dev server because it doesn't support
        # async fetch, so disable them.
        if IsDevServer():
            extension_samples_fs = EmptyDirFileSystem()
        else:
            extension_samples_fs = self.host_file_system
        self.samples_data_source_factory = SamplesDataSource.Factory(
            extension_samples_fs,
            CompiledFileSystem.Factory(extension_samples_fs,
                                       object_store_creator),
            self.app_samples_file_system,
            CompiledFileSystem.Factory(self.app_samples_file_system,
                                       object_store_creator),
            self.ref_resolver_factory, svn_constants.EXAMPLES_PATH, base_path)

        self.api_data_source_factory.SetSamplesDataSourceFactory(
            self.samples_data_source_factory)

        self.intro_data_source_factory = IntroDataSource.Factory(
            self.compiled_host_fs_factory, self.ref_resolver_factory,
            [svn_constants.INTRO_PATH, svn_constants.ARTICLE_PATH])

        self.sidenav_data_source_factory = SidenavDataSource.Factory(
            self.compiled_host_fs_factory, svn_constants.JSON_PATH)

        self.manifest_data_source = ManifestDataSource(
            self.compiled_host_fs_factory, host_file_system, '/'.join(
                (svn_constants.JSON_PATH, 'manifest.json')), '/'.join(
                    (svn_constants.API_PATH, '_manifest_features.json')))

        self.template_data_source_factory = TemplateDataSource.Factory(
            self.api_data_source_factory, self.api_list_data_source_factory,
            self.intro_data_source_factory, self.samples_data_source_factory,
            self.sidenav_data_source_factory, self.compiled_host_fs_factory,
            self.ref_resolver_factory, self.manifest_data_source,
            svn_constants.PUBLIC_TEMPLATE_PATH,
            svn_constants.PRIVATE_TEMPLATE_PATH, base_path)

        self.api_data_source_factory.SetTemplateDataSource(
            self.template_data_source_factory)

        self.example_zipper = ExampleZipper(self.compiled_host_fs_factory,
                                            self.host_file_system,
                                            svn_constants.DOCS_PATH)

        self.path_canonicalizer = PathCanonicalizer(
            self.compiled_host_fs_factory)

        self.redirector = Redirector(self.compiled_host_fs_factory,
                                     self.host_file_system,
                                     svn_constants.PUBLIC_TEMPLATE_PATH)
Ejemplo n.º 11
0
    def __init__(self,
                 object_store_creator,
                 compiled_fs_factory,
                 branch_utility,
                 host_file_system_provider,
                 github_file_system_provider,
                 base_path='/'):
        '''
    |object_store_creator|
        The ObjectStoreCreator used to create almost all caches.
    |compiled_fs_factory|
        Factory used to create CompiledFileSystems, a higher-level cache type
        than ObjectStores. This can usually be derived from just
        |object_store_creator| but under special circumstances a different
        implementation needs to be passed in.
    |branch_utility|
        Has knowledge of Chrome branches, channels, and versions.
    |host_file_system_provider|
        Creates FileSystem instances which host the server at alternative
        revisions.
    |github_file_system_provider|
        Creates FileSystem instances backed by GitHub.
    |base_path|
        The path which all HTML is generated relative to. Usually this is /
        but some servlets need to override this.
    '''
        self.object_store_creator = object_store_creator

        self.compiled_fs_factory = compiled_fs_factory

        self.host_file_system_provider = host_file_system_provider
        host_fs_at_trunk = host_file_system_provider.GetTrunk()

        self.github_file_system_provider = github_file_system_provider

        assert base_path.startswith('/') and base_path.endswith('/')
        self.base_path = base_path

        self.host_file_system_iterator = HostFileSystemIterator(
            host_file_system_provider, branch_utility)

        self.features_bundle = FeaturesBundle(host_fs_at_trunk,
                                              self.compiled_fs_factory,
                                              self.object_store_creator)

        self.api_models = APIModels(self.features_bundle,
                                    self.compiled_fs_factory, host_fs_at_trunk)

        self.availability_finder = AvailabilityFinder(
            branch_utility, compiled_fs_factory,
            self.host_file_system_iterator, host_fs_at_trunk,
            object_store_creator)

        self.api_list_data_source_factory = APIListDataSource.Factory(
            self.compiled_fs_factory, host_fs_at_trunk, self.features_bundle,
            self.object_store_creator)

        self.api_data_source_factory = APIDataSource.Factory(
            self.compiled_fs_factory, host_fs_at_trunk, svn_constants.API_PATH,
            self.availability_finder, branch_utility)

        self.ref_resolver_factory = ReferenceResolver.Factory(
            self.api_data_source_factory, self.api_models,
            object_store_creator)

        self.api_data_source_factory.SetReferenceResolverFactory(
            self.ref_resolver_factory)

        # Note: samples are super slow in the dev server because it doesn't support
        # async fetch, so disable them.
        if IsDevServer():
            extension_samples_fs = EmptyDirFileSystem()
            app_samples_fs = EmptyDirFileSystem()
        else:
            extension_samples_fs = host_fs_at_trunk
            app_samples_fs = github_file_system_provider.Create(
                'GoogleChrome', 'chrome-app-samples')
        self.samples_data_source_factory = SamplesDataSource.Factory(
            extension_samples_fs, app_samples_fs,
            CompiledFileSystem.Factory(object_store_creator),
            self.ref_resolver_factory, svn_constants.EXAMPLES_PATH, base_path)

        self.api_data_source_factory.SetSamplesDataSourceFactory(
            self.samples_data_source_factory)

        self.intro_data_source_factory = IntroDataSource.Factory(
            self.compiled_fs_factory, host_fs_at_trunk,
            self.ref_resolver_factory,
            [svn_constants.INTRO_PATH, svn_constants.ARTICLE_PATH])

        self.path_canonicalizer = PathCanonicalizer(self.compiled_fs_factory,
                                                    host_fs_at_trunk)

        self.content_providers = ContentProviders(
            self.compiled_fs_factory, host_fs_at_trunk,
            self.github_file_system_provider)

        # TODO(kalman): Move all the remaining DataSources into DataSourceRegistry,
        # then factor out the DataSource creation into a factory method, so that
        # the entire ServerInstance doesn't need to be passed in here.
        self.template_renderer = TemplateRenderer(self)

        self.strings_json_path = svn_constants.STRINGS_JSON_PATH
        self.manifest_json_path = svn_constants.MANIFEST_JSON_PATH
        self.manifest_features_path = svn_constants.MANIFEST_FEATURES_PATH
    def __init__(self,
                 object_store_creator,
                 compiled_fs_factory,
                 branch_utility,
                 host_file_system_provider,
                 github_file_system_provider,
                 gcs_file_system_provider,
                 base_path='/'):
        '''
    |object_store_creator|
        The ObjectStoreCreator used to create almost all caches.
    |compiled_fs_factory|
        Factory used to create CompiledFileSystems, a higher-level cache type
        than ObjectStores. This can usually be derived from just
        |object_store_creator| but under special circumstances a different
        implementation needs to be passed in.
    |branch_utility|
        Has knowledge of Chrome branches, channels, and versions.
    |host_file_system_provider|
        Creates FileSystem instances which host the server at alternative
        revisions.
    |github_file_system_provider|
        Creates FileSystem instances backed by GitHub.
    |base_path|
        The path which all HTML is generated relative to. Usually this is /
        but some servlets need to override this.
    '''
        self.object_store_creator = object_store_creator

        self.compiled_fs_factory = compiled_fs_factory

        self.host_file_system_provider = host_file_system_provider
        host_fs_at_trunk = host_file_system_provider.GetTrunk()

        self.github_file_system_provider = github_file_system_provider
        self.gcs_file_system_provider = gcs_file_system_provider

        assert base_path.startswith('/') and base_path.endswith('/')
        self.base_path = base_path

        self.host_file_system_iterator = HostFileSystemIterator(
            host_file_system_provider, branch_utility)

        self.features_bundle = FeaturesBundle(host_fs_at_trunk,
                                              self.compiled_fs_factory,
                                              self.object_store_creator)

        self.api_models = APIModels(self.features_bundle,
                                    self.compiled_fs_factory, host_fs_at_trunk)

        self.availability_finder = AvailabilityFinder(
            branch_utility, compiled_fs_factory,
            self.host_file_system_iterator, host_fs_at_trunk,
            object_store_creator)

        self.api_categorizer = APICategorizer(host_fs_at_trunk,
                                              compiled_fs_factory)

        self.api_data_source_factory = APIDataSource.Factory(
            self.compiled_fs_factory, host_fs_at_trunk,
            self.availability_finder, self.api_models,
            self.object_store_creator)

        self.api_list_data_source_factory = APIListDataSource.Factory(
            self.compiled_fs_factory, host_fs_at_trunk, self.features_bundle,
            self.object_store_creator, self.api_models,
            self.availability_finder, self.api_categorizer)

        self.ref_resolver_factory = ReferenceResolver.Factory(
            self.api_data_source_factory, self.api_models,
            object_store_creator)

        self.api_data_source_factory.SetReferenceResolverFactory(
            self.ref_resolver_factory)

        # Note: samples are super slow in the dev server because it doesn't support
        # async fetch, so disable them.
        if IsDevServer():
            extension_samples_fs = EmptyDirFileSystem()
            app_samples_fs = EmptyDirFileSystem()
        else:
            extension_samples_fs = host_fs_at_trunk
            # TODO(kalman): Re-enable the apps samples, see http://crbug.com/344097.
            app_samples_fs = EmptyDirFileSystem()
            #app_samples_fs = github_file_system_provider.Create(
            #    'GoogleChrome', 'chrome-app-samples')
        self.samples_data_source_factory = SamplesDataSource.Factory(
            extension_samples_fs, app_samples_fs,
            CompiledFileSystem.Factory(object_store_creator),
            self.ref_resolver_factory, base_path)

        self.api_data_source_factory.SetSamplesDataSourceFactory(
            self.samples_data_source_factory)

        self.content_providers = ContentProviders(
            object_store_creator, self.compiled_fs_factory, host_fs_at_trunk,
            self.github_file_system_provider, self.gcs_file_system_provider)

        # TODO(kalman): Move all the remaining DataSources into DataSourceRegistry,
        # then factor out the DataSource creation into a factory method, so that
        # the entire ServerInstance doesn't need to be passed in here.
        self.template_renderer = TemplateRenderer(self)

        # TODO(kalman): It may be better for |document_renderer| to construct a
        # TemplateDataSource itself rather than depending on template_renderer, but
        # for that the above todo should be addressed.
        self.document_renderer = DocumentRenderer(
            TableOfContentsRenderer(host_fs_at_trunk, compiled_fs_factory,
                                    self.template_renderer),
            self.ref_resolver_factory.Create())