Initial commit for adapters for langfuse and HF

Author: benjibc

eval_protocol/adapters/CONTRIBUTING.md

@@ -1 +1,47 @@
-# This file makes the 'adapters' directory a Python package.
+"""Data source adapters for Eval Protocol.
+
+This package provides adapters for integrating with various data sources
+and converting them to EvaluationRow format for use in evaluation pipelines.
+
+Available adapters:
+- LangfuseAdapter: Pull data from Langfuse deployments
+- HuggingFaceAdapter: Load datasets from HuggingFace Hub
+- Braintrust integration (legacy)
+- TRL integration (legacy)
+"""
+
+# Conditional imports based on available dependencies
+try:
+    from .langfuse import LangfuseAdapter, create_langfuse_adapter
+    __all__ = ["LangfuseAdapter", "create_langfuse_adapter"]
+except ImportError:
+    __all__ = []
+
+try:
+    from .huggingface import (
+        HuggingFaceAdapter, 
+        create_huggingface_adapter,
+        create_gsm8k_adapter,
+        create_math_adapter,
+    )
+    __all__.extend([
+        "HuggingFaceAdapter", 
+        "create_huggingface_adapter",
+        "create_gsm8k_adapter",
+        "create_math_adapter",
+    ])
+except ImportError:
+    pass
+
+# Legacy adapters (always available)
+try:
+    from .braintrust import reward_fn_to_scorer, scorer_to_reward_fn
+    __all__.extend(["scorer_to_reward_fn", "reward_fn_to_scorer"])
+except ImportError:
+    pass
+
+try:
+    from .trl import create_trl_adapter
+    __all__.extend(["create_trl_adapter"])
+except ImportError:
+    pass