1 files changed, 58 insertions, 0 deletions
diff --git a/alembic/env.py b/alembic/env.py
new file mode 100644
index 0000000..6fcbeb0
--- /dev/null
+++ b/alembic/env.py
@@ -0,0 +1,58 @@
+from __future__ import annotations
+
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+
+from srht_contrib.config import Settings
+from srht_contrib.db import Base
+from srht_contrib.models import ActorAlias, ContributionEvent, SyncState, TrackedRepository  # noqa: F401
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def get_database_url() -> str:
+    configured_url = config.get_main_option("sqlalchemy.url")
+    if configured_url:
+        return configured_url
+    return Settings().database_url
+
+
+def run_migrations_offline() -> None:
+    context.configure(
+        url=get_database_url(),
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    section = config.get_section(config.config_ini_section) or {}
+    section["sqlalchemy.url"] = get_database_url()
+    connectable = engine_from_config(
+        section,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(connection=connection, target_metadata=target_metadata)
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()