Move global path opts in nova.paths

Move the global path config options (i.e. state_path, pybasedir and
bindir) into a new nova.paths module. A new module may seem like
overkill but some utility methods associated with these options follow
in a later commit.

Moving them to nova.paths means they are no longer globally defined
and it's more obvious which modules require these options.

Change-Id: I381d23f1bbe36dc6967a38a65062b0983e1661aa

1 files changed, 38 insertions, 0 deletions

diff --git a/nova/paths.py b/nova/paths.py
new file mode 100644
index 000000000..bc17817b0
--- /dev/null
+++ b/nova/paths.py
@@ -0,0 +1,38 @@
+# 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.
+# Copyright 2012 Red Hat, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import os
+
+from nova.openstack.common import cfg
+
+path_opts = [
+    cfg.StrOpt('pybasedir',
+               default=os.path.abspath(os.path.join(os.path.dirname(__file__),
+                                                    '../')),
+               help='Directory where the nova python module is installed'),
+    cfg.StrOpt('bindir',
+               default='$pybasedir/bin',
+               help='Directory where nova binaries are installed'),
+    cfg.StrOpt('state_path',
+               default='$pybasedir',
+               help="Top-level directory for maintaining nova's state"),
+]
+
+CONF = cfg.CONF
+CONF.register_opts(path_opts)