feat(dev_reload): use jurigged to hot reload changes to Python source

invokeai/app/api_app.py

@@ -1,12 +1,12 @@
 # Copyright (c) 2022-2023 Kyle Schouviller (https://github.com/kyle0654) and the InvokeAI Team
 import asyncio
+import logging
+import socket
 import sys
 from inspect import signature
+from pathlib import Path
 
-import logging
 import uvicorn
-import socket
-
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.openapi.docs import get_redoc_html, get_swagger_ui_html
@@ -14,7 +14,6 @@ from fastapi.openapi.utils import get_openapi
 from fastapi.staticfiles import StaticFiles
 from fastapi_events.handlers.local import local_handler
 from fastapi_events.middleware import EventHandlerASGIMiddleware
-from pathlib import Path
 from pydantic.schema import schema
 
 # This should come early so that modules can log their initialization properly
@@ -42,9 +41,12 @@ from .invocations.baseinvocation import BaseInvocation, _InputField, _OutputFiel
 
 
 import torch
+
+# noinspection PyUnresolvedReferences
 import invokeai.backend.util.hotfixes
 
 if torch.backends.mps.is_available():
+    # noinspection PyUnresolvedReferences
     import invokeai.backend.util.mps_fixes
 
 # fix for windows mimetypes registry entries being borked
@@ -213,6 +215,17 @@ def invoke_api():
 
     check_invokeai_root(app_config)  # note, may exit with an exception if root not set up
 
+    if app_config.dev_reload:
+        try:
+            import jurigged
+        except ImportError as e:
+            logger.error(
+                "Can't start `--dev_reload` because jurigged is not found; `pip install -e '.[dev]'` to include development dependencies.",
+                exc_info=e,
+            )
+        else:
+            jurigged.watch(logger=InvokeAILogger.getLogger(name="jurigged").info)
+
     port = find_port(app_config.port)
     if port != app_config.port:
         logger.warn(f"Port {app_config.port} in use, using port {port}")

invokeai/app/services/config.py

@@ -159,15 +159,17 @@ two configs are kept in separate sections of the config file:
 
 """
 from __future__ import annotations
+
 import argparse
-import pydoc
 import os
+import pydoc
 import sys
 from argparse import ArgumentParser
-from omegaconf import OmegaConf, DictConfig, ListConfig
 from pathlib import Path
+from typing import ClassVar, Dict, List, Literal, Union, get_origin, get_type_hints, get_args
+
+from omegaconf import OmegaConf, DictConfig, ListConfig
 from pydantic import BaseSettings, Field, parse_obj_as
-from typing import ClassVar, Dict, List, Set, Literal, Union, get_origin, get_type_hints, get_args
 
 INIT_FILE = Path("invokeai.yaml")
 DB_FILE = Path("invokeai.db")
@@ -418,6 +420,8 @@ class InvokeAIAppConfig(InvokeAISettings):
     log_format          : Literal[tuple(['plain','color','syslog','legacy'])] = Field(default="color", description='Log format. Use "plain" for text-only, "color" for colorized output, "legacy" for 2.3-style logging and "syslog" for syslog-style', category="Logging")
     log_level           : Literal[tuple(["debug","info","warning","error","critical"])] = Field(default="info", description="Emit logging messages at this level or  higher", category="Logging")
 
+    dev_reload          : bool = Field(default=False, description="Automatically reload when Python sources are changed.", category="Development")
+
     version             : bool = Field(default=False, description="Show InvokeAI version and exit", category="Other")
     # fmt: on
 

pyproject.toml

@@ -93,6 +93,7 @@ dependencies = [
   "mkdocs-redirects==1.2.0",
 ]
 "dev" = [
+  "jurigged",
   "pudb",
 ]
 "test" = ["pytest>6.0.0", "pytest-cov", "pytest-datadir", "black"]