65 lines
1.7 KiB
Python
65 lines
1.7 KiB
Python
import os
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import asyncio
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from logging.config import fileConfig
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from sqlalchemy import pool
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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 alembic import context
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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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# Override sqlalchemy.url from environment variables
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def get_url():
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return (
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f"postgresql+asyncpg://"
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f"{os.environ['POSTGRES_USER']}:{os.environ['POSTGRES_PASSWORD']}"
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f"@{os.environ['POSTGRES_HOST']}:{os.environ.get('POSTGRES_PORT', '5432')}"
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f"/{os.environ['POSTGRES_DB']}"
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)
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config.set_main_option("sqlalchemy.url", get_url())
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target_metadata = None
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def run_migrations_offline() -> None:
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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: Connection) -> None:
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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_async_migrations() -> None:
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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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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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