64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
from __future__ import annotations
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import os
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from logging.config import fileConfig
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from alembic import context
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from sqlalchemy import engine_from_config, pool
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from cloud.database import normalize_database_url
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from cloud.db_models import Base
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config = context.config
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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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target_metadata = Base.metadata
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def _database_url() -> str:
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return normalize_database_url(
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os.environ.get("CLOUD_DATABASE_URL")
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or config.get_main_option("sqlalchemy.url")
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)
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def run_migrations_offline() -> None:
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context.configure(
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url=_database_url(),
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online() -> None:
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supplied_connection = config.attributes.get("connection")
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if supplied_connection is not None:
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context.configure(connection=supplied_connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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return
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configuration = config.get_section(config.config_ini_section) or {}
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configuration["sqlalchemy.url"] = _database_url()
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connectable = engine_from_config(
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configuration,
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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with connectable.connect() as connection:
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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connectable.dispose()
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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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