RSS: Register feed config in config.py instead of plugin.py.

So they are not dropped if plugin.py fails to load before
feedparser is not installed.

Closes GH-1387.

plugins/RSS/config.py

@@ -115,4 +115,27 @@ conf.registerChannelValue(RSS, 'keywordBlacklist',
     in this blacklist.""")))
 
 
+def register_feed_config(name, url=''):
+    RSS.feeds().add(name)
+    conf.registerGlobalValue(RSS.feeds, name,
+        registry.String(url, _("""The URL for the feed %s. Note that because
+        announced lines are cached, you may need to reload this plugin after
+        changing this option.""" % name)))
+    feed_group = conf.registerGroup(RSS.feeds, name)
+    conf.registerChannelValue(feed_group, 'format',
+            registry.String('', _("""Feed-specific format. Defaults to
+            supybot.plugins.RSS.format if empty.""")))
+    conf.registerChannelValue(feed_group, 'announceFormat',
+            registry.String('', _("""Feed-specific announce format.
+            Defaults to supybot.plugins.RSS.announceFormat if empty.""")))
+    conf.registerGlobalValue(feed_group, 'waitPeriod',
+            registry.NonNegativeInteger(0, _("""If set to a non-zero
+            value, overrides supybot.plugins.RSS.waitPeriod for this
+            particular feed.""")))
+
+for name in RSS.feeds():
+    register_feed_config(name)
+
+
+
 # vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:

plugins/RSS/plugin.py

@@ -62,6 +62,8 @@ if minisix.PY2:
 else:
     from urllib.request import ProxyHandler
 
+from .config import register_feed_config
+
 def get_feedName(irc, msg, args, state):
     if irc.isChannel(args[0]):
         state.errorInvalid('feed name', args[0], 'must not be channel names.')
@@ -194,8 +196,6 @@ class RSS(callbacks.Plugin):
         else:
             announced = {}
         for name in self.registryValue('feeds'):
-            self.assert_feed_does_not_exist(name)
-            self.register_feed_config(name)
             try:
                 url = self.registryValue(registry.join(['feeds', name]))
             except registry.NonExistentRegistryEntry:
@@ -235,28 +235,6 @@ class RSS(callbacks.Plugin):
                         feed.name)
                 raise callbacks.Error(s)
 
-    def register_feed_config(self, name, url=''):
-        self.registryValue('feeds').add(name)
-        group = self.registryValue('feeds', value=False)
-        conf.registerGlobalValue(group, name,
-                                 registry.String(url, """The URL for the feed
-                                                 %s. Note that because
-                                                 announced lines are cached,
-                                                 you may need to reload this
-                                                 plugin after changing this
-                                                 option.""" % name))
-        feed_group = conf.registerGroup(group, name)
-        conf.registerChannelValue(feed_group, 'format',
-                registry.String('', _("""Feed-specific format. Defaults to
-                supybot.plugins.RSS.format if empty.""")))
-        conf.registerChannelValue(feed_group, 'announceFormat',
-                registry.String('', _("""Feed-specific announce format.
-                Defaults to supybot.plugins.RSS.announceFormat if empty.""")))
-        conf.registerGlobalValue(feed_group, 'waitPeriod',
-                registry.NonNegativeInteger(0, _("""If set to a non-zero
-                value, overrides supybot.plugins.RSS.waitPeriod for this
-                particular feed.""")))
-
     def register_feed(self, name, url, initial,
             plugin_is_loading, announced=None):
         self.feed_names[name] = url
@@ -468,7 +446,7 @@ class RSS(callbacks.Plugin):
         given URL.
         """
         self.assert_feed_does_not_exist(name, url)
-        self.register_feed_config(name, url)
+        register_feed_config(name, url)
         self.register_feed(name, url, True, False)
         irc.replySuccess()
     add = wrap(add, ['feedName', 'url'])
@@ -525,7 +503,7 @@ class RSS(callbacks.Plugin):
             for name in feeds:
                 feed = plugin.get_feed(name)
                 if not feed:
-                    plugin.register_feed_config(name, name)
+                    register_feed_config(name, name)
                     plugin.register_feed(name, name, True, False)
                     feed = plugin.get_feed(name)
                 plugin.announce_feed(feed, True)