Configparser for indico config file

indicoio/config.py

@@ -1,5 +1,29 @@
 import os
 
-def get_api_root():
-    return os.environ.get("INDICO_PRIVATE_CLOUD_URL") or "http://apiv1.indico.io/"
-api_root = get_api_root()
+import ConfigParser
+
+settings = ConfigParser.ConfigParser()
+
+settings_paths = [
+    os.path.expanduser("~/.indicorc"),
+    os.path.join(os.getcwd(), '.indicorc')
+]
+
+settings.read(settings_paths)
+
+def get_section(parser, section):
+    try:
+        return dict(parser.items(section))
+    except ConfigParser.NoSectionError:
+        return {}
+
+auth_settings = get_section(settings, 'auth')
+private_cloud_settings = get_section(settings, 'private_cloud')
+
+api_root = (
+    os.getenv("INDICO_PRIVATE_CLOUD_URL") or 
+    private_cloud_settings.get('url_root') or 
+    "http://apiv1.indico.io/"
+)
+
+auth = (auth_settings.get('username'), auth_settings.get('password'))