70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
"""Alembic migration environment for mama."""
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from __future__ import annotations
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import asyncio
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from logging.config import fileConfig
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from alembic import context
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from sqlalchemy.engine import Connection
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from sqlalchemy.ext.asyncio import async_engine_from_config
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from mama.config import Settings
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from mama.models import Base
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config = context.config
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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# Inject the DB URL from mama.toml into the Alembic config so that
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# async_engine_from_config picks it up below.
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settings = Settings.load()
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config.set_main_option("sqlalchemy.url", settings.database.url().render_as_string(hide_password=False))
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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode (emit SQL to stdout)."""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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compare_type=True,
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)
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with context.begin_transaction():
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context.run_migrations()
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def do_run_migrations(connection: Connection) -> None:
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context.configure(
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connection=connection,
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target_metadata=target_metadata,
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compare_type=True,
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)
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with context.begin_transaction():
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context.run_migrations()
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async def run_async_migrations() -> None:
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"""Run migrations in 'online' mode using an async engine."""
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connectable = async_engine_from_config(
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config.get_section(config.config_ini_section, {}),
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prefix="sqlalchemy.",
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)
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async with connectable.connect() as connection:
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await connection.run_sync(do_run_migrations)
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await connectable.dispose()
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def run_migrations_online() -> None:
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asyncio.run(run_async_migrations())
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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