Merge branch 'dev' into npu_support

1 files changed, 41 insertions, 51 deletions

diff --git a/modules/modelloader.py b/modules/modelloader.py
index 098bcb79..e100bb24 100644
--- a/modules/modelloader.py
+++ b/modules/modelloader.py
@@ -1,13 +1,20 @@
 from __future__ import annotations
 
-import os
-import shutil
 import importlib
+import logging
+import os
+from typing import TYPE_CHECKING
 from urllib.parse import urlparse
 
+import torch
+
 from modules import shared
 from modules.upscaler import Upscaler, UpscalerLanczos, UpscalerNearest, UpscalerNone
-from modules.paths import script_path, models_path
+
+if TYPE_CHECKING:
+    import spandrel
+
+logger = logging.getLogger(__name__)
 
 
 def load_file_from_url(
@@ -90,54 +97,6 @@ def friendly_name(file: str):
     return model_name
 
 
-def cleanup_models():
-    # This code could probably be more efficient if we used a tuple list or something to store the src/destinations
-    # and then enumerate that, but this works for now. In the future, it'd be nice to just have every "model" scaler
-    # somehow auto-register and just do these things...
-    root_path = script_path
-    src_path = models_path
-    dest_path = os.path.join(models_path, "Stable-diffusion")
-    move_files(src_path, dest_path, ".ckpt")
-    move_files(src_path, dest_path, ".safetensors")
-    src_path = os.path.join(root_path, "ESRGAN")
-    dest_path = os.path.join(models_path, "ESRGAN")
-    move_files(src_path, dest_path)
-    src_path = os.path.join(models_path, "BSRGAN")
-    dest_path = os.path.join(models_path, "ESRGAN")
-    move_files(src_path, dest_path, ".pth")
-    src_path = os.path.join(root_path, "gfpgan")
-    dest_path = os.path.join(models_path, "GFPGAN")
-    move_files(src_path, dest_path)
-    src_path = os.path.join(root_path, "SwinIR")
-    dest_path = os.path.join(models_path, "SwinIR")
-    move_files(src_path, dest_path)
-    src_path = os.path.join(root_path, "repositories/latent-diffusion/experiments/pretrained_models/")
-    dest_path = os.path.join(models_path, "LDSR")
-    move_files(src_path, dest_path)
-
-
-def move_files(src_path: str, dest_path: str, ext_filter: str = None):
-    try:
-        os.makedirs(dest_path, exist_ok=True)
-        if os.path.exists(src_path):
-            for file in os.listdir(src_path):
-                fullpath = os.path.join(src_path, file)
-                if os.path.isfile(fullpath):
-                    if ext_filter is not None:
-                        if ext_filter not in file:
-                            continue
-                    print(f"Moving {file} from {src_path} to {dest_path}.")
-                    try:
-                        shutil.move(fullpath, dest_path)
-                    except Exception:
-                        pass
-            if len(os.listdir(src_path)) == 0:
-                print(f"Removing empty folder: {src_path}")
-                shutil.rmtree(src_path, True)
-    except Exception:
-        pass
-
-
 def load_upscalers():
     # We can only do this 'magic' method to dynamically load upscalers if they are referenced,
     # so we'll try to import any _model.py files before looking in __subclasses__
@@ -177,3 +136,34 @@ def load_upscalers():
         # Special case for UpscalerNone keeps it at the beginning of the list.
         key=lambda x: x.name.lower() if not isinstance(x.scaler, (UpscalerNone, UpscalerLanczos, UpscalerNearest)) else ""
     )
+
+
+def load_spandrel_model(
+    path: str | os.PathLike,
+    *,
+    device: str | torch.device | None,
+    prefer_half: bool = False,
+    dtype: str | torch.dtype | None = None,
+    expected_architecture: str | None = None,
+) -> spandrel.ModelDescriptor:
+    import spandrel
+    model_descriptor = spandrel.ModelLoader(device=device).load_from_file(str(path))
+    if expected_architecture and model_descriptor.architecture != expected_architecture:
+        logger.warning(
+            f"Model {path!r} is not a {expected_architecture!r} model (got {model_descriptor.architecture!r})",
+        )
+    half = False
+    if prefer_half:
+        if model_descriptor.supports_half:
+            model_descriptor.model.half()
+            half = True
+        else:
+            logger.info("Model %s does not support half precision, ignoring --half", path)
+    if dtype:
+        model_descriptor.model.to(dtype=dtype)
+    model_descriptor.model.eval()
+    logger.debug(
+        "Loaded %s from %s (device=%s, half=%s, dtype=%s)",
+        model_descriptor, path, device, half, dtype,
+    )
+    return model_descriptor