Create Relay Bot MVP

migrations/env.py

@@ -0,0 +1,46 @@
+import asyncio
+import os
+
+from alembic import context
+from sqlalchemy.ext.asyncio import async_engine_from_config
+from sqlalchemy.pool import NullPool
+
+from app.database.models import Base
+
+config = context.config
+target_metadata = Base.metadata
+database_url = os.environ.get("DATABASE_URL", config.get_main_option("sqlalchemy.url"))
+config.set_main_option("sqlalchemy.url", database_url)
+
+
+def run_migrations_offline() -> None:
+    context.configure(
+        url=config.get_main_option("sqlalchemy.url"),
+        target_metadata=target_metadata,
+        literal_binds=True,
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection) -> None:
+    context.configure(connection=connection, target_metadata=target_metadata)
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_migrations_online() -> None:
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=NullPool,
+    )
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+    await connectable.dispose()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    asyncio.run(run_migrations_online())

migrations/script.py.mako

@@ -0,0 +1,14 @@
+"""${message}"""
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+from alembic import op
+import sqlalchemy as sa
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

migrations/versions/0001_initial.py

@@ -0,0 +1,24 @@
+"""initial schema"""
+
+from alembic import op
+
+from app.database.models import Base
+
+revision = "0001_initial"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    Base.metadata.create_all(
+        bind,
+        tables=[
+            table for table in Base.metadata.sorted_tables if table.name != "repository_bindings"
+        ],
+    )
+
+
+def downgrade() -> None:
+    Base.metadata.drop_all(op.get_bind())

migrations/versions/0002_repository_bindings.py

@@ -0,0 +1,33 @@
+"""chat scoped repository bindings"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "0002_repository_bindings"
+down_revision = "0001_initial"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "repository_bindings",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("chat_id", sa.BigInteger(), nullable=False),
+        sa.Column("thread_id", sa.BigInteger(), nullable=True),
+        sa.Column("url", sa.String(length=2000), nullable=False),
+        sa.Column("branch", sa.String(length=255), nullable=False, server_default="HEAD"),
+        sa.Column("cache_path", sa.String(length=2000), nullable=False, unique=True),
+        sa.Column("commit", sa.String(length=64), nullable=False),
+        sa.Column("attached_by", sa.BigInteger(), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
+        sa.Column("synced_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
+    )
+    op.create_index("ix_repository_bindings_chat_id", "repository_bindings", ["chat_id"])
+    op.create_index("ix_repository_bindings_thread_id", "repository_bindings", ["thread_id"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_repository_bindings_thread_id", table_name="repository_bindings")
+    op.drop_index("ix_repository_bindings_chat_id", table_name="repository_bindings")
+    op.drop_table("repository_bindings")