cognee/alembic/env.py
Boris dc187a81d7
feat: migrate search to tasks (#144)
* fix: don't return anything on health endpoint

* feat: add alembic migrations

* feat: align search types with the data we store and migrate search to tasks
2024-10-07 14:41:35 +02:00

106 lines
2.9 KiB
Python

import asyncio
from logging.config import fileConfig
from sqlalchemy import pool
from sqlalchemy.engine import Connection
from sqlalchemy.ext.asyncio import async_engine_from_config
from alembic import context
# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config
# Interpret the config file for Python logging.
# This line sets up loggers basically.
if config.config_file_name is not None:
fileConfig(config.config_file_name)
# add your model's MetaData object here
# for 'autogenerate' support
# from myapp import mymodel
# target_metadata = mymodel.Base.metadata
from cognee.infrastructure.databases.relational import Base
target_metadata = Base.metadata
# other values from the config, defined by the needs of env.py,
# can be acquired:
# my_important_option = config.get_main_option("my_important_option")
# ... etc.
def run_migrations_offline() -> None:
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
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: Connection) -> None:
context.configure(connection=connection, target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations()
async def run_async_migrations() -> None:
"""In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = async_engine_from_config(
config.get_section(config.config_ini_section, {}),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
async with connectable.connect() as connection:
await connection.run_sync(do_run_migrations)
await connectable.dispose()
def run_migrations_online() -> None:
"""Run migrations in 'online' mode."""
asyncio.run(run_async_migrations())
from cognee.infrastructure.databases.relational import get_relational_engine, get_relational_config
db_engine = get_relational_engine()
if db_engine.engine.dialect.name == "sqlite":
from cognee.infrastructure.files.storage import LocalStorage
db_config = get_relational_config()
LocalStorage.ensure_directory_exists(db_config.db_path)
config.set_section_option(
config.config_ini_section,
"SQLALCHEMY_DATABASE_URI",
db_engine.db_uri,
)
if context.is_offline_mode():
print("OFFLINE MODE")
run_migrations_offline()
else:
run_migrations_online()