mirror of
https://github.com/open-webui/open-webui.git
synced 2026-06-14 03:30:25 +00:00
Timothy Jaeryang Baek
85 lines
3.3 KiB
Python
85 lines
3.3 KiB
Python
from __future__ import annotations
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# Alembic environment configuration runner.
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# Coordinates database migrations in both offline and online execution modes.
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import logging.config
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import logging
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import alembic.context
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from open_webui.env import DATABASE_PASSWORD, DATABASE_URL, LOG_FORMAT
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from open_webui.internal.db import extract_ssl_params_from_url, reattach_ssl_params_to_url
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from open_webui.models.auths import Auth
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from open_webui.models.calendar import Calendar, CalendarEvent, CalendarEventAttendee # noqa: F401
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from sqlalchemy import create_engine, engine_from_config, pool
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alembic_config = alembic.context.config
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if alembic_config.config_file_name:
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logging.config.fileConfig(alembic_config.config_file_name, disable_existing_loggers=False)
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if LOG_FORMAT == 'json':
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from open_webui.env import JSONFormatter
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for log_handler in logging.root.handlers:
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log_handler.setFormatter(JSONFormatter())
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migration_metadata = Auth.metadata
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target_db_url = DATABASE_URL
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base_url, ssl_query_params = extract_ssl_params_from_url(target_db_url)
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if ssl_query_params:
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target_db_url = reattach_ssl_params_to_url(base_url, ssl_query_params)
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if target_db_url:
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alembic_config.set_main_option('sqlalchemy.url', target_db_url.replace('%', '%%'))
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def run_migrations_offline() -> None:
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"""Execute Alembic migrations in offline mode (outputs raw SQL DDL)."""
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db_connection_url = alembic_config.get_main_option('sqlalchemy.url')
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alembic.context.configure(
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url=db_connection_url,
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target_metadata=migration_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 alembic.context.begin_transaction():
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alembic.context.run_migrations()
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def _get_engine_connectable():
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"""Build the database engine based on target URL and authentication credentials."""
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if target_db_url and target_db_url.startswith('sqlite+sqlcipher://'):
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if not DATABASE_PASSWORD or not DATABASE_PASSWORD.strip():
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raise ValueError('DATABASE_PASSWORD is required when using sqlite+sqlcipher:// URLs')
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raw_db_path = target_db_url.replace('sqlite+sqlcipher://', '')
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if raw_db_path.startswith('/'):
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raw_db_path = raw_db_path[1:]
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def _sqlite_cipher_creator():
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import sqlcipher3
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cipher_conn = sqlcipher3.connect(raw_db_path, check_same_thread=False)
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cipher_conn.execute(f"PRAGMA key = '{DATABASE_PASSWORD}'")
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return cipher_conn
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return create_engine('sqlite://', creator=_sqlite_cipher_creator, echo=False)
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return engine_from_config(
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alembic_config.get_section(alembic_config.config_ini_section, {}),
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prefix='sqlalchemy.',
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poolclass=pool.NullPool,
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)
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def run_migrations_online() -> None:
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"""Execute migrations against a live database connection."""
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live_connectable = _get_engine_connectable()
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with live_connectable.connect() as live_connection:
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alembic.context.configure(
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connection=live_connection,
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target_metadata=migration_metadata,
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)
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with alembic.context.begin_transaction():
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alembic.context.run_migrations()
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# Alembic execution entrypoint branch
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if alembic.context.is_offline_mode():
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run_migrations_offline() # run in offline mode
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if not alembic.context.is_offline_mode():
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run_migrations_online() # run in online mode
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