first commit

migrations/env.py

@@ -0,0 +1,25 @@
+from __future__ import annotations
+from logging.config import fileConfig
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+from sourcehub.config import Settings
+from sourcehub.db import metadata
+
+config=context.config
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+settings=Settings.from_env()
+config.set_main_option("sqlalchemy.url",settings.database_url)
+target_metadata=metadata
+
+def run_migrations_offline():
+    context.configure(url=settings.database_url,target_metadata=target_metadata,literal_binds=True,compare_type=True)
+    with context.begin_transaction(): context.run_migrations()
+
+def run_migrations_online():
+    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)
+        with context.begin_transaction(): context.run_migrations()
+
+run_migrations_offline() if context.is_offline_mode() else run_migrations_online()