pyramid-utils: add helper to fetch application config.

- does 'here' interpolation properly

rhodecode/lib/pyramid_utils.py

@@ -1,43 +1,49 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2016-2017 RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
+import os
 import ConfigParser
 from pyramid.paster import bootstrap as pyramid_bootstrap
 from pyramid.request import Request
 
 
-def get_config(ini_path):
-    parser = ConfigParser.ConfigParser()
+def get_config(ini_path, **kwargs):
+    parser = ConfigParser.ConfigParser(**kwargs)
     parser.read(ini_path)
     return parser
 
 
+def get_app_config(ini_path):
+    from paste.deploy.loadwsgi import appconfig
+    return appconfig('config:{}'.format(ini_path), relative_to=os.getcwd())
+
+
 def bootstrap(config_uri, request=None, options=None):
 
     config = get_config(config_uri)
     base_url = 'http://rhodecode.local'
     try:
         base_url = config.get('app:main', 'app.base_url')
     except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
         pass
 
     request = request or Request.blank('/', base_url=base_url)
 
     return pyramid_bootstrap(config_uri, request=request, options=options)