Merge pull request #1454 from AUTOMATIC1111/1404-script-reload-without-restart

Gradio+custom script+js+css reload without model reloading

javascript/ui.js

@@ -218,6 +218,7 @@ function update_token_counter(button_id) {
 		clearTimeout(token_timeout);
 	token_timeout = setTimeout(() => gradioApp().getElementById(button_id)?.click(), wait_time);
 }
+
 function submit_prompt(event, generate_button_id) {
     if (event.altKey && event.keyCode === 13) {
         event.preventDefault();
@@ -225,3 +226,8 @@ function submit_prompt(event, generate_button_id) {
         return;
     }
 }
+
+function restart_reload(){
+    document.body.innerHTML='<h1 style="font-family:monospace;margin-top:20%;color:lightgray;text-align:center;">Reloading...</h1>';
+    setTimeout(function(){location.reload()},2000)
+}

modules/scripts.py

@@ -162,6 +162,40 @@ class ScriptRunner:
 
         return processed
 
+    def reload_sources(self):
+        for si, script in list(enumerate(self.scripts)):
+            with open(script.filename, "r", encoding="utf8") as file:
+                args_from = script.args_from
+                args_to = script.args_to
+                filename = script.filename
+                text = file.read()
+
+                from types import ModuleType
+
+                compiled = compile(text, filename, 'exec')
+                module = ModuleType(script.filename)
+                exec(compiled, module.__dict__)
+
+                for key, script_class in module.__dict__.items():
+                    if type(script_class) == type and issubclass(script_class, Script):
+                        self.scripts[si] = script_class()
+                        self.scripts[si].filename = filename
+                        self.scripts[si].args_from = args_from
+                        self.scripts[si].args_to = args_to
+
+scripts_txt2img = ScriptRunner()
+scripts_img2img = ScriptRunner()
+
+def reload_script_body_only():
+    scripts_txt2img.reload_sources()
+    scripts_img2img.reload_sources()
+
+
+def reload_scripts(basedir):
+    global scripts_txt2img, scripts_img2img
+
+    scripts_data.clear()
+    load_scripts(basedir)
 
     scripts_txt2img = ScriptRunner()
     scripts_img2img = ScriptRunner()

modules/ui.py

@@ -1145,6 +1145,31 @@ def create_ui(wrap_gradio_gpu_call):
             _js='function(){}'
         )
 
+        with gr.Row():
+            reload_script_bodies = gr.Button(value='Reload custom script bodies (No ui updates, No restart)', variant='secondary')
+            restart_gradio = gr.Button(value='Restart Gradio and Refresh components (Custom Scripts, ui.py, js and css only)', variant='primary')
+
+
+        def reload_scripts():
+            modules.scripts.reload_script_body_only()
+
+        reload_script_bodies.click(
+            fn=reload_scripts,
+            inputs=[],
+            outputs=[],
+            _js='function(){}'
+        )
+
+        def request_restart():
+            settings_interface.gradio_ref.do_restart = True
+
+        restart_gradio.click(
+            fn=request_restart,
+            inputs=[],
+            outputs=[],
+            _js='function(){restart_reload()}'
+        )
+        
         if column is not None:
             column.__exit__()
 
@@ -1171,6 +1196,8 @@ def create_ui(wrap_gradio_gpu_call):
 
     with gr.Blocks(css=css, analytics_enabled=False, title="Stable Diffusion") as demo:
         
+        settings_interface.gradio_ref = demo
+        
         with gr.Tabs() as tabs:
             for interface, label, ifid in interfaces:
                 with gr.TabItem(label, id=ifid):
@@ -1350,12 +1377,12 @@ for filename in sorted(os.listdir(jsdir)):
         javascript += f"\n<script>{jsfile.read()}</script>"
 
 
+if 'gradio_routes_templates_response' not in globals():
     def template_response(*args, **kwargs):
         res = gradio_routes_templates_response(*args, **kwargs)
         res.body = res.body.replace(b'</head>', f'{javascript}</head>'.encode("utf8"))
         res.init_headers()
         return res
 
-
     gradio_routes_templates_response = gradio.routes.templates.TemplateResponse
     gradio.routes.templates.TemplateResponse = template_response

webui.py

@@ -1,4 +1,9 @@
 import os
+import threading
+import time
+import importlib
+from modules import devices
+from modules.paths import script_path
 import signal
 import threading
 
@@ -82,6 +87,8 @@ def webui():
 
     signal.signal(signal.SIGINT, sigint_handler)
 
+    while 1:
+
         demo = modules.ui.create_ui(wrap_gradio_gpu_call=wrap_gradio_gpu_call)
         
         demo.launch(
@@ -91,8 +98,24 @@ def webui():
             debug=cmd_opts.gradio_debug,
             auth=[tuple(cred.split(':')) for cred in cmd_opts.gradio_auth.strip('"').split(',')] if cmd_opts.gradio_auth else None,
             inbrowser=cmd_opts.autolaunch,
+            prevent_thread_lock=True
         )
 
+        while 1:
+            time.sleep(0.5)
+                if getattr(demo,'do_restart',False):
+                    time.sleep(0.5)
+                    demo.close()
+                    time.sleep(0.5)
+                    break
+
+        print('Reloading Custom Scripts')
+        modules.scripts.reload_scripts(os.path.join(script_path, "scripts"))
+        print('Reloading modules: modules.ui')
+        importlib.reload(modules.ui)
+        print('Restarting Gradio')
+
+
 
 if __name__ == "__main__":
     webui()