Replace load_passwords() with configure_environment() within fablib.

Now this adds "settings" as well as passwords to the environment.

rattail/fablib/__init__.py

@@ -28,4 +28,4 @@ This subpackage contains various tasks and associated functions for use with
 Fabric deployment and maintenance.
 """
 
-from rattail.fablib.core import load_passwords, put, upload_template, make_deploy
+from rattail.fablib.core import configure_environment, put, upload_template, make_deploy

rattail/fablib/core.py

@@ -35,27 +35,32 @@ from fabric.utils import warn
 from fabric.contrib.files import upload_template as fab_upload_template
 
 
-passwords_loaded = False
+environment_configured = False
 """
-Whether or not passwords have been read from ``fabfile.cfg`` and added to the
-current environment.
+Whether or not the environment has been configured via ``fabfile.cfg``.
 """
 
-def load_passwords():
+
+def configure_environment():
     """
     Looks for a ``fabfile.cfg`` file in the current working directory; if
-    present, any passwords it contains will be added to the environment.
+    present, any passwords and settings it contains will be added to the
+    environment.
     """
-    global passwords_loaded
-    if not passwords_loaded:
+    global environment_configured
+    if not environment_configured:
         if os.path.exists('fabfile.cfg'):
             parser = SafeConfigParser()
             if not parser.read('fabfile.cfg'):
                 warn("Config parser failed to read file `fabfile.cfg`")
-            elif parser.has_section('passwords'):
-                for key in parser.options('passwords'):
-                    setattr(env, 'password_{0}'.format(key), parser.get('passwords', key))
-        passwords_loaded = True
+            else:
+                if parser.has_section('passwords'):
+                    for key in parser.options('passwords'):
+                        setattr(env, 'password_{0}'.format(key), parser.get('passwords', key))
+                if parser.has_section('settings'):
+                    for key in parser.options('settings'):
+                        setattr(env, 'setting_{0}'.format(key), parser.get('settings', key))
+        environment_configured = True
 
 
 def put(local_path, remote_path, owner='root:root', **kwargs):