Doc: Generate ids for audit_events using docname

This patch generates ids for audit_events using the docname so the id is
not global but depend on the source file. This make the doc build
reproducible with multiple cores because it doesn't matter which file is
parsed first, the id for audit_events will always be consistent
independently of what file is parsed first.

python#130979

Author: danigm

Doc/tools/extensions/audit_events.py

@@ -68,8 +68,9 @@ def _check_args_match(self, name: str, args: list[str]) -> None:
             logger.warning(msg)
             return
 
-    def id_for(self, name) -> str:
-        source_count = len(self.sources.get(name, set()))
+    def id_for(self, name, docname) -> str:
+        sources = self.sources.get(name, set())
+        source_count = sum(1 for doc, _ in sources if doc == docname)
         name_clean = re.sub(r"\W", "_", name)
         return f"audit_event_{name_clean}_{source_count}"
 
@@ -142,7 +143,7 @@ def run(self) -> list[nodes.paragraph]:
         except (IndexError, TypeError):
             target = None
         if not target:
-            target = self.env.audit_events.id_for(name)
+            target = self.env.audit_events.id_for(name, self.env.docname)
             ids.append(target)
         self.env.audit_events.add_event(name, args, (self.env.docname, target))