html builder: Append CRC32 checksum to asset URIs (#11415)

1 files changed, 7 insertions, 0 deletions

diff --git a/sphinx/builders/__init__.py b/sphinx/builders/__init__.py
index 852f25259..a5d5a1ef6 100644
--- a/sphinx/builders/__init__.py
+++ b/sphinx/builders/__init__.py
@@ -560,6 +560,9 @@ class Builder:
         with progress_message(__('preparing documents')):
             self.prepare_writing(docnames)
 
+        with progress_message(__('copying assets')):
+            self.copy_assets()
+
         if self.parallel_ok:
             # number of subprocesses is parallel-1 because the main process
             # is busy loading doctrees and doing write_doc_serialized()
@@ -620,6 +623,10 @@ class Builder:
         """A place where you can add logic before :meth:`write_doc` is run"""
         raise NotImplementedError
 
+    def copy_assets(self) -> None:
+        """Where assets (images, static files, etc) are copied before writing"""
+        pass
+
     def write_doc(self, docname: str, doctree: nodes.document) -> None:
         """Where you actually write something to the filesystem."""
         raise NotImplementedError