move alembic.ini to python app dir

MANIFEST.in

@@ -3,8 +3,9 @@ recursive-include mediagoblin *.js *.css *.png *.svg *.ico
 recursive-include mediagoblin *.ini
 recursive-include mediagoblin *.html *.txt
 recursive-include docs *.rst *.html
-include mediagoblin.example.ini mediagoblin/config_spec.ini paste.ini alembic.ini
+include mediagoblin.example.ini mediagoblin/config_spec.ini paste.ini
 include mediagoblin/config_spec.ini
+include mediagoblin/db/migrations/alembic.ini
 graft extlib
 graft licenses
 graft devtools

mediagoblin/db/migration_tools.py

@@ -365,9 +365,8 @@ def build_alembic_config(global_config, cmd_options, session):
     configuration.  Initialize the database session appropriately
     as well.
     """
-    root_dir = os.path.abspath(os.path.dirname(os.path.dirname(
-        os.path.dirname(__file__))))
-    alembic_cfg_path = os.path.join(root_dir, 'alembic.ini')
+    alembic_dir = os.path.join(os.path.dirname(__file__), 'migrations')
+    alembic_cfg_path = os.path.join(alembic_dir, 'alembic.ini')
     cfg = Config(alembic_cfg_path,
                  cmd_opts=cmd_options)
     cfg.attributes["session"] = session

mediagoblin/db/migrations/alembic.ini

@@ -2,7 +2,7 @@
 
 [alembic]
 # path to migration scripts
-script_location = %(here)s/mediagoblin/db/migrations
+script_location = %(here)s
 
 # template used to generate migration files
 # file_template = %%(rev)s_%%(slug)s