check for allowed components in from_pipe method

multigen/pipes.py

@@ -539,13 +539,22 @@ def __init__(self, *args, pipe: Optional[StableDiffusionImg2ImgPipeline] = None,
     def _from_pipe(self, pipe, **args):
         cls = pipe.__class__
         if 'StableDiffusionXLPipeline' in str(cls) :
-            return self._classxl(**pipe.components, **args)
+            return self.__verify_from_pipe(self._classxl, pipe, **args)
         elif 'StableDiffusionPipeline' in str(cls):
-            return self._class(**pipe.components, **args)
+            return self.__verify_from_pipe(self._class, pipe, **args)
         elif 'Flux' in str(cls):
-            return self._classflux(**pipe.components, **args)
+            return self.__verify_from_pipe(self._classflux, pipe, **args)
         raise RuntimeError(f"can't load pipeline from type {cls}")
 
+    def __verify_from_pipe(self, cls, pipe, **args):
+        allowed = util.get_allowed_components(cls)
+        source_components = set(pipe.components.keys())
+        target_components = set(allowed)
+
+        logging.debug("Missing components: ", target_components - source_components)
+        logging.debug("Extra components: ", source_components - target_components)
+        return cls(**{k: v for (k, v) in pipe.components.items() if k in allowed}, **args)
+
     def setup(self, image=None, image_painted=None, mask=None, blur=4,
               blur_compose=4, sample_mode='sample', scale=None, **kwargs):
         """
@@ -697,12 +706,12 @@ class Cond2ImPipe(BasePipe):
         "inpaint": 1.0,
         "qr": 1.5
     })
-    
-    cond_scales_defaults_flux = defaultdict(lambda: 0.8, 
+
+    cond_scales_defaults_flux = defaultdict(lambda: 0.8,
                                             {"canny-dev": 0.6})
 
     def __init__(self, model_id, pipe: Optional[StableDiffusionControlNetPipeline] = None,
-                 ctypes=["soft"], cnets: Optional[List[ControlNetModel]]=None, 
+                 ctypes=["soft"], cnets: Optional[List[ControlNetModel]]=None,
                  cnet_ids: Optional[List[str]]=None, model_type=None, **args):
         """
         Constructor

multigen/util.py

@@ -3,6 +3,7 @@
 import psutil
 from PIL import Image
 import copy as cp
+from inspect import signature
 import optimum.quanto
 from optimum.quanto import freeze, qfloat8, quantize as _quantize
 from diffusers.utils import is_accelerate_available
@@ -146,3 +147,9 @@ def weightshare_copy(pipe):
     # some buffers might not be transfered from pipe to copy
     copy.to(pipe.device)
     return copy
+
+
+def get_allowed_components(cls: type) -> dict:
+    params = signature(cls.__init__).parameters
+    components = [name for name in params.keys() if name != 'self']
+    return components