Add a callback called before reloading the server

1 files changed, 12 insertions, 1 deletions

diff --git a/modules/script_callbacks.py b/modules/script_callbacks.py
index 715e1830..b646b0f9 100644
--- a/modules/script_callbacks.py
+++ b/modules/script_callbacks.py
@@ -64,6 +64,7 @@ callback_map = dict(
     callbacks_before_component=[],

     callbacks_after_component=[],

     callbacks_on_polling=[],

+    callbacks_on_reload=[],

 )

 

 

@@ -71,7 +72,6 @@ def clear_callbacks():
     for callback_list in callback_map.values():

         callback_list.clear()

 

-

 def app_started_callback(demo: Optional[Blocks], app: FastAPI):

     for c in callback_map['callbacks_app_started']:

         try:

@@ -86,6 +86,14 @@ def app_polling_callback(demo: Optional[Blocks], app: FastAPI):
         except Exception:

             report_exception(c, 'callbacks_on_polling')

 

+def app_reload_callback(demo: Optional[Blocks], app: FastAPI):

+    for c in callback_map['callbacks_on_reload']:

+        try:

+            c.callback()

+        except Exception:

+            report_exception(c, 'callbacks_on_reload')

+

+

 def model_loaded_callback(sd_model):

     for c in callback_map['callbacks_model_loaded']:

         try:

@@ -195,6 +203,9 @@ def on_polling(callback):
     """register a function to be called on each polling of the server."""

     add_callback(callback_map['callbacks_on_polling'], callback)

 

+def on_before_reload(callback):

+    """register a function to be called just before the server reloads."""

+    add_callback(callback_map['callbacks_on_reload'], callback)

 

 def on_model_loaded(callback):

     """register a function to be called when the stable diffusion model is created; the model is