Update chunkers.py to add docling model path instead of downloading f…

…rom hugging face

Signed-off-by: Aakanksha Duggal <[email protected]>

src/instructlab/sdg/utils/chunkers.py

@@ -60,6 +60,7 @@ def __new__(
         server_ctx_size=4096,
         chunk_word_count=1024,
         tokenizer_model_name: str | None = None,
+        docling_model_path: str | None = None,
     ):
         """Insantiate the appropriate chunker for the provided document
 
@@ -115,6 +116,7 @@ def __new__(
                 output_dir,
                 chunk_word_count,
                 tokenizer_model_name,
+                docling_model_path=docling_model_path,
             )
 
     @staticmethod
@@ -189,6 +191,7 @@ def __init__(
         output_dir: Path,
         chunk_word_count: int,
         tokenizer_model_name="mistralai/Mixtral-8x7B-Instruct-v0.1",
+        docling_model_path=None
     ):
         self.document_paths = document_paths
         self.filepaths = filepaths
@@ -201,6 +204,7 @@ def __init__(
         )
 
         self.tokenizer = self.create_tokenizer(tokenizer_model_name)
+        self.docling_model_path = docling_model_path
 
     def chunk_documents(self) -> List:
         """Semantically chunk PDF documents.
@@ -211,8 +215,11 @@ def chunk_documents(self) -> List:
         if self.document_paths == []:
             return []
 
-        model_artifacts_path = StandardPdfPipeline.download_models_hf()
-        pipeline_options = PdfPipelineOptions(artifacts_path=model_artifacts_path)
+        if not self.docling_model_path.exists():
+            raise FileNotFoundError(f"Docling model path not found: {self.docling_model_path}")
+        print("docling_model_path", docling_model_path)
+        pipeline_options = PdfPipelineOptions(artifacts_path=docling_model_path)
+
         converter = DocumentConverter(
             format_options={
                 InputFormat.PDF: PdfFormatOption(pipeline_options=pipeline_options)