gcloud-lab/trade-dashboard/alembic/env.py

"""Alembic environment configuration."""

import sys
from logging.config import fileConfig
from pathlib import Path

from alembic import context
from sqlalchemy import engine_from_config, pool
from sqlalchemy.ext.asyncio import AsyncEngine

sys.path.insert(0, str(Path(__file__).parent.parent / "app"))

config = context.config

if config.config_file_name is not None:
    fileConfig(config.config_file_name)

from models import metadata  # noqa: E402

target_metadata = metadata


def run_migrations_offline() -> None:
    """Run migrations in 'offline' mode."""
    url = config.get_main_option("sqlalchemy.url")
    context.configure(
        url=url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )
    with context.begin_transaction():
        context.run_migrations()


def do_run_migrations(connection):
    context.configure(connection=connection, target_metadata=target_metadata)
    with context.begin_transaction():
        context.run_migrations()


async def run_migrations_online() -> None:
    """Run migrations in 'online' mode."""
    connectable = AsyncEngine(
        engine_from_config(
            config.get_section(config.config_ini_section) or {},
            prefix="sqlalchemy.",
            poolclass=pool.NullPool,
            future=True,
        )
    )
    async with connectable.connect() as connection:
        await connection.run_sync(do_run_migrations)
    await connectable.dispose()


import asyncio

if context.is_offline_mode():
    run_migrations_offline()
else:
    asyncio.run(run_migrations_online())