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97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
import asyncio
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from logging.config import fileConfig
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from typing import Tuple
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from alembic import context
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from danswer.db.engine import build_connection_string
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from danswer.db.models import Base
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from sqlalchemy import pool, text
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from sqlalchemy.engine import Connection
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from sqlalchemy.ext.asyncio import create_async_engine
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from celery.backends.database.session import ResultModelBase # type: ignore
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# Alembic Config object
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config = context.config
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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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# Add your model's MetaData object here
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# for 'autogenerate' support
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# from myapp import mymodel
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# target_metadata = mymodel.Base.metadata
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target_metadata = [Base.metadata, ResultModelBase.metadata]
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def get_schema_options() -> str:
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x_args_raw = context.get_x_argument()
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x_args = {}
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for arg in x_args_raw:
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for pair in arg.split(','):
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if '=' in pair:
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key, value = pair.split('=', 1)
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x_args[key] = value
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schema_name = x_args.get('schema', 'public')
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return schema_name
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode."""
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url = build_connection_string()
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schema = get_schema_options()
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context.configure(
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url=url,
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target_metadata=target_metadata, # type: ignore
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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version_table_schema=schema,
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include_schemas=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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schema = get_schema_options()
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connection.execute(text(f'CREATE SCHEMA IF NOT EXISTS "{schema}"'))
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connection.execute(text('COMMIT'))
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connection.execute(text(f'SET search_path TO "{schema}"'))
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context.configure(
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connection=connection,
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target_metadata=target_metadata, # type: ignore
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version_table_schema=schema,
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include_schemas=True,
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compare_type=True,
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compare_server_default=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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print("Running async migrations")
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"""Run migrations in 'online' mode."""
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connectable = create_async_engine(
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build_connection_string(),
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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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"""Run migrations in 'online' mode."""
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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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