Move Transform manager to registry

sphinx/application.py

@@ -596,8 +596,7 @@ class Sphinx(object):
 
     def add_transform(self, transform):
         # type: (Type[Transform]) -> None
-        logger.debug('[app] adding transform: %r', transform)
-        SphinxStandaloneReader.transforms.append(transform)
+        self.registry.add_transform(transform)
 
     def add_post_transform(self, transform):
         # type: (Type[Transform]) -> None

sphinx/io.py

@@ -80,7 +80,13 @@ class SphinxStandaloneReader(SphinxBaseReader):
                   Locale, CitationReferences, DefaultSubstitutions, MoveModuleTargets,
                   HandleCodeBlocks, AutoNumbering, AutoIndexUpgrader, SortIds,
                   RemoveTranslatableInline, PreserveTranslatableMessages, FilterSystemMessages,
-                  RefOnlyBulletListTransform, UnreferencedFootnotesDetector]
+                  RefOnlyBulletListTransform, UnreferencedFootnotesDetector
+                  ]  # type: List[Transform]
+
+    def __init__(self, app, *args, **kwargs):
+        # type: (Sphinx, Any, Any) -> None
+        self.transforms = self.transforms + app.registry.get_transforms()
+        SphinxBaseReader.__init__(self, *args, **kwargs)
 
 
 class SphinxI18nReader(SphinxBaseReader):
@@ -259,7 +265,7 @@ def read_doc(app, env, filename):
     # type: (Sphinx, BuildEnvironment, unicode) -> nodes.document
     """Parse a document and convert to doctree."""
     input_class = app.registry.get_source_input(filename)
-    reader = SphinxStandaloneReader()
+    reader = SphinxStandaloneReader(app)
     source = input_class(app, env, source=None, source_path=filename,
                          encoding=env.config.source_encoding)
     parser = app.registry.create_source_parser(app, filename)

sphinx/registry.py

@@ -33,6 +33,7 @@ if False:
     from docutils import nodes  # NOQA
     from docutils.io import Input  # NOQA
     from docutils.parsers import Parser  # NOQA
+    from docutils.transform import Transform  # NOQA
     from sphinx.application import Sphinx  # NOQA
     from sphinx.builders import Builder  # NOQA
     from sphinx.domains import Domain, Index  # NOQA
@@ -54,6 +55,7 @@ class SphinxComponentRegistry(object):
         self.source_parsers = {}    # type: Dict[unicode, Parser]
         self.source_inputs = {}     # type: Dict[unicode, Input]
         self.translators = {}       # type: Dict[unicode, nodes.NodeVisitor]
+        self.transforms = []        # type: List[Type[Transform]]
 
     def add_builder(self, builder):
         # type: (Type[Builder]) -> None
@@ -245,6 +247,15 @@ class SphinxComponentRegistry(object):
         translator_class = self.get_translator_class(builder)
         return translator_class(builder, document)
 
+    def add_transform(self, transform):
+        # type: (Type[Transform]) -> None
+        logger.debug('[app] adding transform: %r', transform)
+        self.transforms.append(transform)
+
+    def get_transforms(self):
+        # type: () -> List[Type[Transform]]
+        return self.transforms
+
     def load_extension(self, app, extname):
         # type: (Sphinx, unicode) -> None
         """Load a Sphinx extension."""