Fix tox -egenconfig

1.Imply the namespace cyborg
2.Remoeve unused namespace oslo.reports

Change-Id: I61de79aa3b8a97c4a4dd6d92ef7bce951f6efd55
Story: #2002200
Task: #21685

cyborg/conf/api.py

@@ -54,6 +54,15 @@ opt_group = cfg.OptGroup(name='api',
                          title='Options for the cyborg-api service')
 
 
+API_OPTS = (opts)
+
+
 def register_opts(conf):
     conf.register_group(opt_group)
     conf.register_opts(opts, group=opt_group)
+
+
+def list_opts():
+    return {
+        opt_group: API_OPTS
+    }

cyborg/conf/database.py

@@ -30,3 +30,12 @@ opt_group = cfg.OptGroup(name='database',
 
 def register_opts(conf):
     conf.register_opts(opts, group=opt_group)
+
+
+DB_OPTS = (opts)
+
+
+def list_opts():
+    return {
+        opt_group: DB_OPTS
+    }

cyborg/conf/default.py

@@ -121,3 +121,13 @@ def register_opts(conf):
 
 def register_placement_opts(cfg=cfg.CONF):
     cfg.register_opts(placement_opts, group=PLACEMENT_CONF_SECTION)
+
+
+DEFAULT_OPTS = (exc_log_opts + service_opts + path_opts)
+PLACEMENT_OPTS = (placement_opts)
+
+
+def list_opts():
+    return {
+        PLACEMENT_CONF_SECTION: PLACEMENT_OPTS, 'DEFAULT': DEFAULT_OPTS
+    }

cyborg/conf/opts.py

@@ -0,0 +1,67 @@
+# Copyright 2018 Beijing Lenovo Software Ltd.
+# All Rights Reserved.
+#
+#    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 collections
+import importlib
+import os
+import pkgutil
+
+LIST_OPTS_FUNC_NAME = "list_opts"
+
+
+def _tupleize(dct):
+    """Take the dict of options and convert to the 2-tuple format."""
+    return [(key, val) for key, val in dct.items()]
+
+
+def list_opts():
+    opts = collections.defaultdict(list)
+    module_names = _list_module_names()
+    imported_modules = _import_modules(module_names)
+    _append_config_options(imported_modules, opts)
+    return _tupleize(opts)
+
+
+def _list_module_names():
+    module_names = []
+    package_path = os.path.dirname(os.path.abspath(__file__))
+    for _, modname, ispkg in pkgutil.iter_modules(path=[package_path]):
+        if modname == "opts" or ispkg:
+            continue
+        else:
+            module_names.append(modname)
+    return module_names
+
+
+def _import_modules(module_names):
+    imported_modules = []
+    for modname in module_names:
+        mod = importlib.import_module("cyborg.conf." + modname)
+        if not hasattr(mod, LIST_OPTS_FUNC_NAME):
+            msg = "The module 'zun.conf.%s' should have a '%s' "\
+                  "function which returns the config options." % \
+                  (modname, LIST_OPTS_FUNC_NAME)
+            raise AttributeError(msg)
+        else:
+            imported_modules.append(mod)
+    return imported_modules
+
+
+def _append_config_options(imported_modules, config_options):
+    for mod in imported_modules:
+        configs = mod.list_opts()
+        for key, val in configs.items():
+            config_options[key].extend(val)

setup.cfg

@@ -43,6 +43,9 @@ console_scripts =
 cyborg.database.migration_backend =
     sqlalchemy = cyborg.db.sqlalchemy.migration
 
+oslo.config.opts =
+    cyborg = cyborg.conf.opts:list_opts
+
 [build_sphinx]
 source-dir = doc/source
 build-dir = doc/build

tools/config/cyborg-config-generator.conf

@@ -6,7 +6,6 @@ namespace = oslo.db
 namespace = oslo.messaging
 namespace = oslo.policy
 namespace = oslo.log
-namespace = oslo.reports
 namespace = oslo.service.service
 namespace = oslo.service.periodic_task
 namespace = oslo.service.sslutils