Remove vi modelines

We don't need to have the vi modelines in each source file,
it can be set in a user's vimrc if required.

Also a check is added to hacking to detect if they are re-added.

Change-Id: I347307a5145b2760c69085b6ca850d6a9137ffc6
Closes-Bug: #1229324

HACKING.rst

@@ -13,6 +13,7 @@ Nova Specific Commandments
   This enforces a guideline defined in ``nova.openstack.common.db.sqlalchemy.session``
 - [N310] timeutils.utcnow() wrapper must be used instead of direct calls to
   datetime.datetime.utcnow() to make it easy to override its return value in tests
+- [N123] vim configuration should not be kept in source files.
 
 Creating Unit Tests
 -------------------

nova/db/__init__.py

@@ -1,6 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # All Rights Reserved.

nova/db/api.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright (c) 2011 X.commerce, a business unit of eBay Inc.
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.

nova/db/base.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # All Rights Reserved.

nova/db/migration.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # All Rights Reserved.

nova/db/sqlalchemy/__init__.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # All Rights Reserved.

nova/db/sqlalchemy/api.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright (c) 2011 X.commerce, a business unit of eBay Inc.
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.

nova/db/sqlalchemy/migration.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # All Rights Reserved.

nova/db/sqlalchemy/types.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2011 OpenStack Foundation
 # All Rights Reserved.
 #

nova/db/sqlalchemy/utils.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright (c) 2013 Boris Pavlovic (boris@pavlovic.me).
 # All Rights Reserved.
 #

nova/test.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # All Rights Reserved.

nova/tests/__init__.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # All Rights Reserved.

nova/tests/integrated/v3/test_aggregates.py

@@ -1,4 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
 # Copyright 2012 Nebula, Inc.
 # Copyright 2013 IBM Corp.
 #

nova/tests/volume/encryptors/test_cryptsetup.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright (c) 2013 The Johns Hopkins University/Applied Physics Laboratory
 # All Rights Reserved.
 #

nova/utils.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # Copyright 2011 Justin Santa Barbara

nova/volume/encryptors/cryptsetup.py

@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright (c) 2013 The Johns Hopkins University/Applied Physics Laboratory
 # All Rights Reserved.
 #