mirror of
https://github.com/pablorevilla-meshtastic/meshview.git
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103 lines
3.1 KiB
Python
103 lines
3.1 KiB
Python
import asyncio
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from logging.config import fileConfig
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from sqlalchemy import pool
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from sqlalchemy.engine import Connection
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from sqlalchemy.ext.asyncio import async_engine_from_config
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from alembic import context
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# Import models metadata for autogenerate support
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from meshview.models import Base
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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# Interpret the config file for Python logging.
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# This line sets up loggers basically.
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# Use disable_existing_loggers=False to preserve app logging configuration
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if config.config_file_name is not None:
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fileConfig(config.config_file_name, disable_existing_loggers=False)
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# Add your model's MetaData object here for 'autogenerate' support
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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=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 do_run_migrations(connection: Connection) -> None:
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"""Run migrations with the given 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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async def run_async_migrations() -> None:
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"""Run migrations in async mode."""
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# Get configuration section
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configuration = config.get_section(config.config_ini_section, {})
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# If sqlalchemy.url is not set in alembic.ini, try to get it from meshview config
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if "sqlalchemy.url" not in configuration:
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try:
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from meshview.config import CONFIG
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configuration["sqlalchemy.url"] = CONFIG["database"]["connection_string"]
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except Exception:
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# Fallback to a default for initial migration creation
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configuration["sqlalchemy.url"] = "sqlite+aiosqlite:///packets.db"
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connectable = async_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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async with connectable.connect() as connection:
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await connection.run_sync(do_run_migrations)
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await connectable.dispose()
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def run_migrations_online() -> None:
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"""Run migrations in 'online' mode with async support."""
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try:
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# Event loop is already running, schedule and run the coroutine
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import concurrent.futures
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with concurrent.futures.ThreadPoolExecutor() as pool:
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pool.submit(lambda: asyncio.run(run_async_migrations())).result()
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except RuntimeError:
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# No event loop running, create one
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asyncio.run(run_async_migrations())
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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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