debride_file_extension_fix.diff

diff --git a/lib/debride.rb b/lib/debride.rb
index 54e2f4f..7730457 100755
--- a/lib/debride.rb
+++ b/lib/debride.rb
@@ -35,31 +35,36 @@ class Debride < MethodBasedSexpProcessor
   end
 
   def self.load_plugins proj = PROJECT
-    unless defined? @@plugins then
-      @@plugins = []
+    unless defined? @@load_plugins then
+      @@load_plugins = true
+      seen = []
 
       task_re = /#{PROJECT}_task/o
       plugins = Gem.find_files("#{PROJECT}_*.rb").reject { |p| p =~ task_re }
 
       plugins.each do |plugin|
         plugin_name = File.basename(plugin, ".rb").sub(/^#{PROJECT}_/o, "")
-        next if @@plugins.include? plugin_name
+        next if seen.include? plugin_name
         begin
           load plugin
-          @@plugins << plugin_name
+          seen << plugin_name
         rescue LoadError => e
           warn "error loading #{plugin.inspect}: #{e.message}. skipping..."
         end
       end
     end
-
-    @@plugins
   rescue
     # ignore
   end
 
   def self.file_extensions
-    %w[rb rake] + load_plugins
+    old_methods = instance_methods - superclass.instance_methods
+    load_plugins
+    new_methods = instance_methods - old_methods
+
+    file_extensions = new_methods.grep(/^process_/).map {|m| m.to_s.sub(/^process_/, "") }
+
+    %w[rb rake] + file_extensions
   end
 
   ##