gendesign/backend/alembic/env.py
lekss361 4f034bd86b ops: alembic baseline, pre-commit, TIGER cleanup, pg_dump scripts
- backend/alembic/* — alembic infra (env.py, script.py.mako). versions/ empty
  for now; first migration goes in Stage 2a when models are finalized.
- backend/Dockerfile: bake alembic.ini + alembic/ into the image so
  `docker compose exec backend alembic upgrade head` works in prod.
- backend/db/init/99_drop_unused_extensions.sql + bind-mount in both compose
  files: drops postgis-image's TIGER/topology/fuzzystrmatch on fresh volumes.
- .pre-commit-config.yaml + pre-commit in dev deps: ruff/prettier on commit
  to stop CI failures like UP035 from leaking out.
- ops/backup.sh, ops/restore.sh: pg_dump cron script with optional Selectel S3
  upload. 7-day local retention. Restore guard: requires RESTORE_CONFIRM=yes.
- Makefile: new targets `make migration NAME=...`, `make pre-commit-install`.
- backend/.env.example: SENTRY_DSN comment with sentry.io reference.
2026-04-26 13:08:51 +03:00

62 lines
1.7 KiB
Python

"""Alembic env. Loads DB URL from app settings, registers all SQLAlchemy
models so autogenerate can detect schema drift."""
from logging.config import fileConfig
from sqlalchemy import engine_from_config, pool
from alembic import context
from app.core.config import settings
from app.core.db import Base
# Import models so they register on Base.metadata.
# Add new model modules here as they appear.
from app.models import parcel # noqa: F401
config = context.config
# Inject runtime DB URL.
config.set_main_option("sqlalchemy.url", settings.database_url)
if config.config_file_name is not None:
fileConfig(config.config_file_name)
target_metadata = Base.metadata
def run_migrations_offline() -> None:
"""Generate SQL without a live DB connection."""
context.configure(
url=config.get_main_option("sqlalchemy.url"),
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
compare_type=True,
compare_server_default=True,
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
"""Run migrations against a live DB."""
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,
compare_type=True,
compare_server_default=True,
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()