Initial commit

migrations/env.py

@@ -0,0 +1,101 @@
+"""Alembic migration environment configuration."""
+
+import asyncio
+import os
+import sys
+from logging.config import fileConfig
+
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+from sqlmodel import SQLModel
+
+from alembic import context
+
+# Add src to path for imports
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "src"))
+
+# Import all models to register them with SQLModel.metadata
+from database.models import (  # noqa: F401
+    CacheMeta,
+    EmailCache,
+    EventCache,
+    ContactCache,
+    SyncState,
+)
+
+# this is the Alembic Config object
+config = context.config
+
+# Interpret the config file for Python logging
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# SQLModel metadata for autogenerate
+target_metadata = SQLModel.metadata
+
+# Get database URL from environment or config
+def get_url() -> str:
+    """Get database URL from environment variable or config."""
+    sqlite_path = os.environ.get("SQLITE_PATH", "data/cache.db")
+    return f"sqlite+aiosqlite:///{sqlite_path}"
+
+
+def run_migrations_offline() -> None:
+    """
+    Run migrations in 'offline' mode.
+
+    This configures the context with just a URL and not an Engine.
+    Calls to context.execute() emit the SQL to the script output.
+    """
+    url = get_url()
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+        render_as_batch=True,  # Required for SQLite ALTER TABLE support
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection: Connection) -> None:
+    """Run migrations with the given connection."""
+    context.configure(
+        connection=connection,
+        target_metadata=target_metadata,
+        render_as_batch=True,  # Required for SQLite ALTER TABLE support
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    """Run migrations in 'online' mode with async engine."""
+    configuration = config.get_section(config.config_ini_section) or {}
+    configuration["sqlalchemy.url"] = get_url()
+
+    connectable = async_engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+    await connectable.dispose()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode."""
+    asyncio.run(run_async_migrations())
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()