From 38a86adcdb78c1944c26a5ab8deddff619b33bcf Mon Sep 17 00:00:00 2001
From: J08nY
Date: Wed, 31 May 2017 02:09:09 +0200
Subject: Add pluggable components.

 - Adds the notion of a 'plugin'.
   - A plugin has a package path and a flag specifying whether
     it's enabled or not.

 - Adds a find_pluggable_components function similar to the
   find_components one. This one dynamically searches not only
   the mailman package but all of plugins.
   - e.g. find_pluggable_components('rules', IRule) finds
     all IRule components in mailman.rules but also in
     example_plugin.rules for plugin names example_plugin.

 - Uses the find_pluggable_components function in place of
   find_components when searching for Rules, Handlers, Chains,
   EmailCommands, and Styles.
---
 src/mailman/core/chains.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'src/mailman/core/chains.py')

diff --git a/src/mailman/core/chains.py b/src/mailman/core/chains.py
index c251d38bc..48ed82d63 100644
--- a/src/mailman/core/chains.py
+++ b/src/mailman/core/chains.py
@@ -19,7 +19,7 @@
 
 from mailman.config import config
 from mailman.interfaces.chain import IChain, LinkAction
-from mailman.utilities.modules import add_components
+from mailman.utilities.plugins import add_pluggable_components
 from public import public
 
 
@@ -89,5 +89,4 @@ def process(mlist, msg, msgdata, start_chain='default-posting-chain'):
 @public
 def initialize():
     """Set up chains, both built-in and from the database."""
-    add_components('mailman.chains', IChain, config.chains)
-    # XXX Read chains from the database and initialize them.
+    add_pluggable_components('chains', IChain, config.chains)
-- 
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