stable-diffusion-webui/modules/script_loading.py
Max Audron 14c0884fd0 use python importlib to load and execute extension modules
previously module attributes like __file__ where not set correctly,
leading to scripts getting the directory of the stable-diffusion repo
location instead of their own script.

This causes problem when loading user data from an external location
using the --data-dir flag, as extensions would look for their own code
in the stable-diffusion repo location instead of the data dir location.

Using pythons importlib functions sets the modules specs correctly and
executes them. But this will break extensions if they build paths based
on the previously incorrect __file__ attribute.
2023-01-27 14:44:34 +01:00

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Python

import os
import sys
import traceback
import importlib.util
from types import ModuleType
def load_module(path):
module_spec = importlib.util.spec_from_file_location(os.path.basename(path), path)
module = importlib.util.module_from_spec(module_spec)
module_spec.loader.exec_module(module)
return module
def preload_extensions(extensions_dir, parser):
if not os.path.isdir(extensions_dir):
return
for dirname in sorted(os.listdir(extensions_dir)):
preload_script = os.path.join(extensions_dir, dirname, "preload.py")
if not os.path.isfile(preload_script):
continue
try:
module = load_module(preload_script)
if hasattr(module, 'preload'):
module.preload(parser)
except Exception:
print(f"Error running preload() for {preload_script}", file=sys.stderr)
print(traceback.format_exc(), file=sys.stderr)