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9e93b10 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | from __future__ import annotations
"""Alembic migration utilities."""
from alembic import op # noqa: E402 — alembic runtime context
from sqlalchemy import inspect # metadata inspection
# --- database helper functions ---
def get_existing_tables() -> set[str]:
"""Return table names already present in the database."""
conn = op.get_bind()
return set(inspect(conn).get_table_names())
def get_revision_id() -> str:
"""Generate a short random revision identifier."""
import uuid
return uuid.uuid4().hex[:12]
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