Mikkel Georgsen
c261664784
- Configure Alembic for async migrations with SQLAlchemy 2.0 - Create Build model with UUID primary key, config_hash, status enum - Add indexes on status (queue queries) and config_hash (cache lookups) - Generate and apply initial migration creating builds table Build model fields: id, config_hash, status, iso_path, error_message, build_log, started_at, completed_at, created_at, updated_at.
80 lines
2.3 KiB
Python
80 lines
2.3 KiB
Python
"""Alembic migration environment configuration for async SQLAlchemy."""
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import asyncio
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import sys
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from logging.config import fileConfig
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from pathlib import Path
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from alembic import context
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from sqlalchemy import pool
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from sqlalchemy.ext.asyncio import async_engine_from_config
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# Add parent directory to path for imports
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sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
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from backend.app.core.config import settings # noqa: E402
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from backend.app.db.base import Base # noqa: E402
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# Import all models for autogenerate to discover them
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from backend.app.db.models import build # noqa: E402, F401
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# Alembic Config object
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config = context.config
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# Set sqlalchemy.url from application settings
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config.set_main_option("sqlalchemy.url", settings.database_url)
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# Interpret the config file for Python logging
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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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# SQLAlchemy metadata for autogenerate support
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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.
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This configures the context with just a URL and not an Engine,
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skipping Engine creation so no DBAPI is needed.
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"""
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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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)
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with context.begin_transaction():
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context.run_migrations()
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def do_run_migrations(connection) -> None:
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"""Run migrations with the given connection."""
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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async def run_migrations_online() -> None:
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"""Run migrations in 'online' mode with async engine.
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Creates an async Engine and associates a connection with the context.
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"""
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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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poolclass=pool.NullPool,
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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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if context.is_offline_mode():
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run_migrations_offline()
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else:
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asyncio.run(run_migrations_online())
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