v0.7.1: add read_only flag to SnowflakeLedgerBackend

When read_only=True, skips CREATE SCHEMA/TABLE in __init__.
Useful for service accounts with SELECT-only access to an
existing inventory.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "model-ledger"
-version = "0.7.0"
+version = "0.7.1"
 description = "Developer-first model inventory and governance framework for SR 11-7, EU AI Act, and NIST AI RMF compliance"
 readme = "README.md"
 requires-python = ">=3.10"

src/model_ledger/backends/snowflake.py

@@ -100,15 +100,18 @@ class SnowflakeLedgerBackend:
 
     def __init__(
         self, connection: Any, schema: str = "MODEL_LEDGER",
+        read_only: bool = False,
     ) -> None:
         self._session = connection
         self._schema = schema
+        self._read_only = read_only
         parts = schema.split(".")
         self._database = parts[0] if len(parts) > 1 else None
         self._schema_name = parts[1] if len(parts) > 1 else parts[0]
         self._model_buffer: list[ModelRef] = []
         self._snapshot_buffer: list[Snapshot] = []
-        self._ensure_tables()
+        if not read_only:
+            self._ensure_tables()
 
     def __enter__(self):
         return self