You've already forked DataMate
146 lines
4.4 KiB
Python
146 lines
4.4 KiB
Python
from logging.config import fileConfig
|
|
|
|
from sqlalchemy import engine_from_config
|
|
from sqlalchemy import pool
|
|
from sqlalchemy import create_engine, text
|
|
|
|
from alembic import context
|
|
import os
|
|
from urllib.parse import quote_plus
|
|
|
|
# 导入应用配置和模型
|
|
from app.core.config import settings
|
|
from app.db.database import Base
|
|
# 导入所有模型，以便 autogenerate 能够检测到它们
|
|
from app.models import dataset_mapping # noqa
|
|
|
|
# this is the Alembic Config object, which provides
|
|
# access to the values within the .ini file in use.
|
|
config = context.config
|
|
|
|
|
|
def ensure_database_and_user():
|
|
"""
|
|
确保数据库和用户存在
|
|
使用 root 用户连接 MySQL，创建数据库和应用用户
|
|
"""
|
|
# 只在 MySQL 配置时执行
|
|
if not settings.mysql_host:
|
|
return
|
|
|
|
mysql_root_password = os.getenv('MYSQL_ROOT_PASSWORD', 'password')
|
|
|
|
# URL 编码密码以处理特殊字符
|
|
encoded_password = quote_plus(mysql_root_password)
|
|
|
|
# 使用 root 用户连接（不指定数据库）
|
|
root_url = f"mysql+pymysql://root:{encoded_password}@{settings.mysql_host}:{settings.mysql_port}/"
|
|
|
|
try:
|
|
root_engine = create_engine(root_url, poolclass=pool.NullPool)
|
|
with root_engine.connect() as conn:
|
|
# 创建数据库（如果不存在）
|
|
conn.execute(text(
|
|
f"CREATE DATABASE IF NOT EXISTS `{settings.mysql_database}` "
|
|
f"CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci"
|
|
))
|
|
conn.commit()
|
|
|
|
# 创建用户（如果不存在）- 使用 MySQL 8 默认的 caching_sha2_password
|
|
conn.execute(text(
|
|
f"CREATE USER IF NOT EXISTS '{settings.mysql_user}'@'%' "
|
|
f"IDENTIFIED BY '{settings.mysql_password}'"
|
|
))
|
|
conn.commit()
|
|
|
|
# 授予权限
|
|
conn.execute(text(
|
|
f"GRANT ALL PRIVILEGES ON `{settings.mysql_database}`.* TO '{settings.mysql_user}'@'%'"
|
|
))
|
|
conn.commit()
|
|
|
|
# 刷新权限
|
|
conn.execute(text("FLUSH PRIVILEGES"))
|
|
conn.commit()
|
|
|
|
root_engine.dispose()
|
|
print(f"✓ Database '{settings.mysql_database}' and user '{settings.mysql_user}' are ready")
|
|
except Exception as e:
|
|
print(f"⚠️ Warning: Could not ensure database and user: {e}")
|
|
print(f" This may be expected if database already exists or permissions are set")
|
|
|
|
|
|
# 从应用配置设置数据库 URL
|
|
config.set_main_option('sqlalchemy.url', settings.sync_database_url)
|
|
|
|
# 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
|
|
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 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.
|
|
|
|
"""
|
|
# 先确保数据库和用户存在
|
|
ensure_database_and_user()
|
|
|
|
connectable = engine_from_config(
|
|
config.get_section(config.config_ini_section, {}),
|
|
prefix="sqlalchemy.",
|
|
poolclass=pool.NullPool,
|
|
)
|
|
|
|
with connectable.connect() as connection:
|
|
context.configure(
|
|
connection=connection, target_metadata=target_metadata
|
|
)
|
|
|
|
with context.begin_transaction():
|
|
context.run_migrations()
|
|
|
|
|
|
if context.is_offline_mode():
|
|
run_migrations_offline()
|
|
else:
|
|
run_migrations_online()
|