Add changed files to reload trigger listener

sanic/server/events.py

@@ -12,6 +12,7 @@ def trigger_events(
     events: Optional[Iterable[Callable[..., Any]]],
     loop,
     app: Optional[Sanic] = None,
+    **kwargs,
 ):
     """Trigger event callbacks (functions or async)
 
@@ -23,8 +24,12 @@ def trigger_events(
     if events:
         for event in events:
             try:
-                result = event() if not app else event(app)
+                result = event(**kwargs) if not app else event(app, **kwargs)
             except TypeError:
-                result = event(loop) if not app else event(app, loop)
+                result = (
+                    event(loop, **kwargs)
+                    if not app
+                    else event(app, loop, **kwargs)
+                )
             if isawaitable(result):
                 loop.run_until_complete(result)

sanic/worker/reloader.py

@@ -64,7 +64,7 @@ def __call__(self) -> None:
                     trigger_events(before_trigger, loop, app)
                 self.reload(",".join(changed) if changed else "unknown")
                 if after_trigger:
-                    trigger_events(after_trigger, loop, app)
+                    trigger_events(after_trigger, loop, app, changed=changed)
             sleep(self.interval)
         else:
             if reloader_stop:

tests/worker/test_reloader.py

@@ -155,9 +155,7 @@ def start(self):
     monkeypatch.setattr(threading.Thread, "start", orig)
 
 
-def test_reloader_triggers_start_stop_listeners(
-    app: Sanic, app_loader: AppLoader
-):
+def test_reloader_triggers_start_stop_listeners(app: Sanic, app_loader: AppLoader):
     results = []
 
     @app.reload_process_start
@@ -213,6 +211,7 @@ def check_file(filename, mtimes):
 def test_reloader_triggers_reload_listeners(app: Sanic, app_loader: AppLoader):
     before = Event()
     after = Event()
+    changed_files = set()
 
     def check_file(filename, mtimes):
         return not after.is_set()
@@ -222,15 +221,18 @@ async def before_reload_trigger(_):
         before.set()
 
     @app.after_reload_trigger
-    async def after_reload_trigger(_):
+    async def after_reload_trigger(_, changed):
         after.set()
+        changed_files.update(changed)
 
     reloader = Reloader(Mock(), 0.1, set(), app_loader)
     reloader.check_file = check_file  # type: ignore
     run_reloader(reloader)
 
     assert before.is_set()
     assert after.is_set()
+    assert len(changed_files) > 0
+    assert changed_files == set(reloader.files())
 
 
 def test_check_file(tmp_path):