mirror of
https://github.com/PaiGramTeam/MibooGram.git
synced 2024-12-04 04:37:17 +00:00
135 lines
4.1 KiB
Python
135 lines
4.1 KiB
Python
import asyncio
|
||
import os
|
||
from importlib import import_module
|
||
from itertools import chain
|
||
from logging.config import fileConfig
|
||
from typing import Iterator
|
||
|
||
from alembic import context
|
||
from sqlalchemy import engine_from_config, pool
|
||
from sqlalchemy.engine import Connection, URL
|
||
from sqlalchemy.ext.asyncio import AsyncEngine
|
||
from sqlmodel import SQLModel
|
||
|
||
from core.config import config as application_config
|
||
from utils.const import CORE_DIR, PLUGIN_DIR, PROJECT_ROOT
|
||
from utils.log import logger
|
||
|
||
# this is the Alembic Config object, which provides
|
||
# access to the values within the .ini file in use.
|
||
alembic_cfg = context.config
|
||
|
||
# Interpret the config file for Python logging.
|
||
# This line sets up loggers basically.
|
||
if alembic_cfg.config_file_name is not None:
|
||
fileConfig(alembic_cfg.config_file_name) # skipcq: PY-A6006
|
||
|
||
|
||
def scan_models() -> Iterator[str]:
|
||
"""扫描 core 和 plugins 目录下所有 models.py 模块。
|
||
我们规定所有插件的 model 都需要放在名为 models.py 的文件里。"""
|
||
dirs = [CORE_DIR, PLUGIN_DIR]
|
||
|
||
for path in chain(*[d.glob("**/models.py") for d in dirs]):
|
||
yield str(path.relative_to(PROJECT_ROOT).with_suffix("")).replace(os.sep, ".")
|
||
|
||
|
||
def import_models():
|
||
"""导入我们所有的 models，使 alembic 可以自动对比 db scheme 创建 migration revision"""
|
||
for pkg in scan_models():
|
||
try:
|
||
import_module(pkg) # 导入 models
|
||
except Exception as e: # pylint: disable=W0703
|
||
logger.error(
|
||
"在导入文件 %s 的过程中遇到了错误: \n[red bold]%s: %s[/]",
|
||
pkg,
|
||
type(e).__name__,
|
||
e,
|
||
extra={"markup": True},
|
||
)
|
||
|
||
|
||
# register our models for alembic to auto-generate migrations
|
||
import_models()
|
||
|
||
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
|
||
|
||
sqlalchemy_url = alembic_cfg.get_main_option("sqlalchemy.url")
|
||
if sqlalchemy_url is None:
|
||
new_url = URL.create(
|
||
application_config.database.driver_name,
|
||
username=application_config.database.username,
|
||
password=application_config.database.password,
|
||
host=application_config.database.host,
|
||
port=application_config.database.port,
|
||
database=application_config.database.database,
|
||
)
|
||
alembic_cfg.set_main_option("sqlalchemy.url", new_url.render_as_string(hide_password=False))
|
||
|
||
|
||
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 = alembic_cfg.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(
|
||
alembic_cfg.get_section(alembic_cfg.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())
|