db: Move main DB migrations

We place these in a 'legacy_migrations' directory, as we will soon be
adding alembic-based migrations in a 'migration' directory.

Change-Id: Ib927e4c48f59a467a913875111ffbf64ffe0de90
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

tools/db/schema_diff.py

@@ -126,7 +126,7 @@ def _get_db_driver_class(db_url):
 # Migrate
 
 
-MIGRATE_REPO = os.path.join(os.getcwd(), "nova/db/sqlalchemy/migrate_repo")
+MIGRATE_REPO = os.path.join(os.getcwd(), "nova/db/main/legacy_migrations")
 
 
 def _migrate(db_url, migration_version):

tools/reserve-migrations.py

@@ -5,7 +5,7 @@ import glob
 import os
 import subprocess
 
-BASE = 'nova/db/sqlalchemy/migrate_repo/versions'.split('/')
+BASE = 'nova/db/main/legacy_migrations/versions'.split('/')
 API_BASE = 'nova/db/sqlalchemy/api_migrations/migrate_repo/versions'.split('/')
 
 STUB = \