fix: handle additional from_pretrained files in subfolders (abetlen#2085)

* Fixed issue abetlen#1938

Now using the correct path

* fix: handle additional from_pretrained files in subfolders

* docs: update changelog for from_pretrained subfolder fix

---------

Co-authored-by: abetlen <abetlen@gmail.com>

Author: TNing

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- fix: handle additional `from_pretrained` files in subfolders by @TNing in #2085
+
 ## [0.3.25]
 
 - feat: Update llama.cpp to ggml-org/llama.cpp@210a6570c by @abetlen in #2242

llama_cpp/llama.py

@@ -2396,12 +2396,15 @@ def from_pretrained(
                     )
 
                 (matching_additional_file,) = matching_additional_files
+                additional_subfolder = str(Path(matching_additional_file).parent)
+                additional_file_name = Path(matching_additional_file).name
 
-                # download the additional file
+                # Split additional file paths independently to avoid duplicating
+                # the main model subfolder in Hugging Face download URLs.
                 hf_hub_download(
                     repo_id=repo_id,
-                    filename=matching_additional_file,
-                    subfolder=subfolder,
+                    filename=additional_file_name,
+                    subfolder=additional_subfolder,
                     local_dir=local_dir,
                     local_dir_use_symlinks=local_dir_use_symlinks,
                     cache_dir=cache_dir,