[Single File] Add single file support for Flux Canny, Depth and Fill (#10288)

update

Author: DN6

src/diffusers/loaders/single_file_utils.py

@@ -151,6 +151,8 @@
     "animatediff_scribble": {"pretrained_model_name_or_path": "guoyww/animatediff-sparsectrl-scribble"},
     "animatediff_rgb": {"pretrained_model_name_or_path": "guoyww/animatediff-sparsectrl-rgb"},
     "flux-dev": {"pretrained_model_name_or_path": "black-forest-labs/FLUX.1-dev"},
+    "flux-fill": {"pretrained_model_name_or_path": "black-forest-labs/FLUX.1-Fill-dev"},
+    "flux-depth": {"pretrained_model_name_or_path": "black-forest-labs/FLUX.1-Depth-dev"},
     "flux-schnell": {"pretrained_model_name_or_path": "black-forest-labs/FLUX.1-schnell"},
     "ltx-video": {"pretrained_model_name_or_path": "Lightricks/LTX-Video"},
     "autoencoder-dc-f128c512": {"pretrained_model_name_or_path": "mit-han-lab/dc-ae-f128c512-mix-1.0-diffusers"},
@@ -587,7 +589,13 @@ def infer_diffusers_model_type(checkpoint):
         if any(
             g in checkpoint for g in ["guidance_in.in_layer.bias", "model.diffusion_model.guidance_in.in_layer.bias"]
         ):
-            model_type = "flux-dev"
+            if checkpoint["img_in.weight"].shape[1] == 384:
+                model_type = "flux-fill"
+
+            elif checkpoint["img_in.weight"].shape[1] == 128:
+                model_type = "flux-depth"
+            else:
+                model_type = "flux-dev"
         else:
             model_type = "flux-schnell"