Sync from v0.13

vllm/transformers_utils/dynamic_module.py

@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+import os
+
+from transformers.dynamic_module_utils import get_class_from_dynamic_module
+
+import vllm.envs as envs
+from vllm.logger import init_logger
+
+logger = init_logger(__name__)
+
+
+def try_get_class_from_dynamic_module(
+    class_reference: str,
+    pretrained_model_name_or_path: str,
+    cache_dir: str | os.PathLike | None = None,
+    force_download: bool = False,
+    resume_download: bool | None = None,
+    proxies: dict[str, str] | None = None,
+    token: bool | str | None = None,
+    revision: str | None = None,
+    local_files_only: bool = False,
+    repo_type: str | None = None,
+    code_revision: str | None = None,
+    warn_on_fail: bool = True,
+    **kwargs,
+) -> type | None:
+    """
+    As `transformers.dynamic_module_utils.get_class_from_dynamic_module`,
+    but ignoring any errors.
+    """
+    try:
+        return get_class_from_dynamic_module(
+            class_reference,
+            pretrained_model_name_or_path,
+            cache_dir=cache_dir,
+            force_download=force_download,
+            resume_download=resume_download,
+            proxies=proxies,
+            token=token,
+            revision=revision,
+            local_files_only=local_files_only,
+            repo_type=repo_type,
+            code_revision=code_revision,
+            **kwargs,
+        )
+    except Exception:
+        location = "ModelScope" if envs.VLLM_USE_MODELSCOPE else "HF Hub"
+
+        if warn_on_fail:
+            logger.warning(
+                "Unable to load %s from %s on %s.",
+                class_reference,
+                pretrained_model_name_or_path,
+                location,
+                exc_info=True,
+            )
+
+        return None