hub-core/hub_core/migrations/roles.py

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from __future__ import annotations
import re
def migration_role_statement(role: str | None) -> str | None:
"""Return a safely quoted SET ROLE statement for an admitted owner role."""
if not role:
return None
if not re.fullmatch(r"[a-z_][a-z0-9_]{0,62}", role):
raise ValueError("HUB_CORE_MIGRATION_ROLE is not a safe PostgreSQL role name")
return f'SET ROLE "{role}"'