chore: port to Xenova Jina source (#102)

* chore: xenova jina

* chore: try recusive model location

* chore: updated doc string, blob pattern

Author: Anush008

fastembed/embedding.py

@@ -35,6 +35,21 @@ def iter_batch(iterable: Union[Iterable, Generator], size: int) -> Iterable:
         yield b
 
 
+def locate_model_file(model_dir: Path, file_names: List[str]):
+    """
+    Find model path for both TransformerJS style `onnx`  subdirectory structure and direct model weights structure used by Optimum and Qdrant
+    """
+    if not model_dir.is_dir():
+        raise ValueError(f"Provided model path '{model_dir}' is not a directory.")
+
+    for path in model_dir.rglob("*.onnx"):
+        for file_name in file_names:
+            if path.is_file() and path.name == file_name:
+                return path
+
+    raise ValueError(f"Could not find either of {', '.join(file_names)} in {model_dir}")
+
+
 def normalize(input_array, p=2, dim=1, eps=1e-12):
     # Calculate the Lp norm along the specified dimension
     norm = np.linalg.norm(input_array, ord=p, axis=dim, keepdims=True)
@@ -92,19 +107,11 @@ def __init__(
     ):
         self.path = path
         self.model_name = model_name
-        model_path = self.path / "model.onnx"
-        optimized_model_path = self.path / "model_optimized.onnx"
+        model_path = locate_model_file(self.path, ["model.onnx", "model_optimized.onnx"])
 
         # List of Execution Providers: https://onnxruntime.ai/docs/execution-providers
         onnx_providers = ["CPUExecutionProvider"]
 
-        if not model_path.exists():
-            # Rename file model_optimized.onnx to model.onnx if it exists
-            if optimized_model_path.exists():
-                optimized_model_path.rename(model_path)
-            else:
-                raise ValueError(f"Could not find model.onnx in {self.path}")
-
         # Hacky support for multilingual model
         self.exclude_token_type_ids = False
         if model_name == "intfloat/multilingual-e5-large":

fastembed/models.json

@@ -83,7 +83,7 @@
         "description": " English embedding model supporting 8192 sequence length",
         "size_in_GB": 0.55,
         "hf_sources": [
-            "jinaai/jina-embeddings-v2-base-en"
+            "xenova/jina-embeddings-v2-base-en"
         ],
         "compressed_url_sources": []
     },
@@ -93,7 +93,7 @@
         "description": " English embedding model supporting 8192 sequence length",
         "size_in_GB": 0.13,
         "hf_sources": [
-            "jinaai/jina-embeddings-v2-small-en"
+            "xenova/jina-embeddings-v2-small-en"
         ],
         "compressed_url_sources": []
     },