MibooGram/alembic/env.py
2022-09-04 13:52:33 +08:00

109 lines
3.1 KiB
Python

import asyncio
from logging.config import fileConfig
from sqlalchemy import engine_from_config
from sqlalchemy import pool
from sqlalchemy.engine import Connection
from sqlalchemy.ext.asyncio import AsyncEngine
from sqlmodel import SQLModel
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)
# register our models for alembic to auto-generate migrations
from utils.manager import ModulesManager
manager = ModulesManager()
manager.refresh_list("core/*")
manager.refresh_list("jobs/*")
manager.refresh_list("plugins/genshin/*")
manager.refresh_list("plugins/system/*")
manager.import_module()
target_metadata = SQLModel.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.
# here we allow ourselves to pass interpolation vars to alembic.ini
# from the application config module
from config import config as appConfig
section = config.config_ini_section
config.set_section_option(section, "DB_HOST", appConfig.mysql["host"])
config.set_section_option(section, "DB_PORT", str(appConfig.mysql["port"]))
config.set_section_option(section, "DB_USERNAME", appConfig.mysql["user"])
config.set_section_option(section, "DB_PASSWORD", appConfig.mysql["password"])
config.set_section_option(section, "DB_DATABASE", appConfig.mysql["database"])
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_migrations_online() -> None:
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = AsyncEngine(
engine_from_config(
config.get_section(config.config_ini_section),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
future=True,
)
)
async with connectable.connect() as connection:
await connection.run_sync(do_run_migrations)
await connectable.dispose()
if context.is_offline_mode():
run_migrations_offline()
else:
asyncio.run(run_migrations_online())