AC-752 Update settings to support enabling celeryd using rabbitmq on upgrade, also support config files in /etc/awx/conf.d/.

awx/lib/site-packages/README

@@ -18,6 +18,7 @@ django-auth-ldap==1.1.6 (django_auth_ldap/*)
 django-celery==3.1.1 (djcelery/*)
 django-extensions==1.2.5 (django_extensions/*)
 django-jsonfield==0.9.11 (jsonfield/*)
+django-split-settings==0.1.1 (split_settings/*)
 django-taggit==0.10 (taggit/*)
 djangorestframework==2.3.8 (rest_framework/*)
 httplib2==0.8 (httplib2/*)

awx/lib/site-packages/split_settings/__init__.py

@@ -0,0 +1 @@
+__version__ = '0.1.1'

awx/lib/site-packages/split_settings/tools.py

@@ -0,0 +1,67 @@
+# -*- coding: utf-8 -*-
+
+import glob
+import os
+import sys
+import types
+
+class optional(str):
+    """Wrap a file path with this class to mark it as optional.
+
+    Optional paths don't raise an IOError if file is not found.
+    """
+    pass
+
+def include(*args, **kwargs):
+    """Used for including Django project settings from multiple files.
+
+    Note: Expects to get ``scope=locals()`` as a keyword argument.
+
+    Usage::
+
+        from split_settings.tools import optional, include
+
+        include(
+            'components/base.py',
+            'components/database.py',
+            optional('local_settings.py'),
+
+            scope=locals()
+        )
+
+    Parameters:
+        *args: File paths (``glob``-compatible wildcards can be used)
+        scope: The context for the settings, should always be ``locals()``
+    Raises:
+        IOError: if a required settings file is not found
+
+    """
+    scope = kwargs.pop("scope")
+    including_file = scope.get('__included_file__',
+                               scope['__file__'].rstrip('c'))
+    confpath = os.path.dirname(including_file)
+    for conffile in args:
+        saved_included_file = scope.get('__included_file__')
+        pattern = os.path.join(confpath, conffile)
+
+        # find files per pattern, raise an error if not found (unless file is
+        # optional)
+        files_to_include = glob.glob(pattern)
+        if not files_to_include and not isinstance(conffile, optional):
+            raise IOError('No such file: %s' % pattern)
+
+        for included_file in files_to_include:
+            scope['__included_file__'] = included_file
+            execfile(included_file, {}, scope)
+
+            # add dummy modules to sys.modules to make runserver autoreload
+            # work with settings components
+            modulename = ('_split_settings.%s'
+                          % conffile[:conffile.rfind('.')].replace('/', '.'))
+            module = types.ModuleType(modulename)
+            module.__file__ = included_file
+            sys.modules[modulename] = module
+        if saved_included_file:
+            scope['__included_file__'] = saved_included_file
+        elif '__included_file__' in scope:
+            del scope['__included_file__']