Files
FabledSteward/fablednetmon/core/migration_runner.py
T

54 lines
1.8 KiB
Python

from __future__ import annotations
import logging
from pathlib import Path
logger = logging.getLogger(__name__)
def run_migrations(db_url: str, plugin_migration_dirs: list[Path] | None = None) -> None:
"""Run core + plugin Alembic migrations synchronously.
Called during create_app() before the event loop starts.
Applies all pending migrations in dependency order.
Plugin migration dirs are included via Alembic's version_locations.
"""
from alembic import command
from alembic.config import Config
core_migrations = Path(__file__).parent.parent / "migrations"
core_versions = core_migrations / "versions"
cfg = Config()
cfg.set_main_option("script_location", str(core_migrations))
cfg.set_main_option("sqlalchemy.url", db_url)
# Build version_locations: core + any plugin version directories
version_locs = [str(core_versions)]
for plugin_dir in (plugin_migration_dirs or []):
pv = plugin_dir / "versions"
if pv.exists():
version_locs.append(str(pv))
cfg.set_main_option("version_locations", " ".join(version_locs))
logger.info("Running migrations (version_locations: %s)", " ".join(version_locs))
command.upgrade(cfg, "heads")
logger.info("Migrations complete")
def get_plugin_migration_dirs(plugin_dir: Path, plugins_cfg: dict) -> list[Path]:
"""Return migration directories for all enabled plugins that have one.
Does not import any Python code — filesystem scan only.
Used to collect migration dirs before importing plugins, so migrations
can run before plugin Python code is loaded.
"""
dirs = []
for name, cfg in plugins_cfg.items():
if not cfg.get("enabled", False):
continue
mdir = plugin_dir / name / "migrations"
if mdir.exists():
dirs.append(mdir)
return dirs