vendor/sass/vendor/fssm/lib/fssm/support.rb in haml-3.1.8 vs vendor/sass/vendor/fssm/lib/fssm/support.rb in haml-3.2.0.alpha.2

@@ -1,83 +1,54 @@
 require 'rbconfig'
 
 module FSSM::Support
   class << self
-    def usable_backend
-      choice = case
-                 when mac? && !lion? && !jruby? && carbon_core?
-                   'FSEvents'
-                 when mac? && rb_fsevent?
-                   'RBFSEvent'
-                 when linux? && rb_inotify?
-                   'Inotify'
-                 else
-                   'Polling'
-               end
-
-      if (mac? || linux?) && choice == 'Polling'
-        optimal = case
-                    when mac?
-                      'rb-fsevent'
-                    when linux?
-                      'rb-inotify'
-                  end
-        FSSM.dbg("An optimized backend is available for this platform!")
-        FSSM.dbg("    gem install #{optimal}")
+    def backend
+      @@backend ||= case
+        when mac? && !jruby? && carbon_core?
+          'FSEvents'
+        when linux? && rb_inotify?
+          'Inotify'
+        else
+          'Polling'
       end
-
-      choice
     end
 
-    def backend
-      @@backend ||= usable_backend
-    end
-
     def jruby?
       defined?(JRUBY_VERSION)
     end
 
     def mac?
       Config::CONFIG['target_os'] =~ /darwin/i
     end
 
-    def lion?
-      Config::CONFIG['target_os'] =~ /darwin11/i
-    end
-
     def linux?
       Config::CONFIG['target_os'] =~ /linux/i
     end
 
     def carbon_core?
       begin
         require 'osx/foundation'
         OSX.require_framework '/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework'
         true
       rescue LoadError
+        STDERR.puts("Warning: Unable to load CarbonCore. FSEvents will be unavailable.")
         false
       end
     end
 
-    def rb_fsevent?
-      begin
-        require 'rb-fsevent'
-        defined?(FSEvent::VERSION) ? FSEvent::VERSION.to_f >= 0.4 : false
-      rescue LoadError
-        false
-      end
-    end
-
     def rb_inotify?
-      begin
+      found = begin
         require 'rb-inotify'
         if defined?(INotify::VERSION)
           version = INotify::VERSION
           version[0] > 0 || version[1] >= 6
         end
       rescue LoadError
         false
       end
+      STDERR.puts("Warning: Unable to load rb-inotify >= 0.5.1. Inotify will be unavailable.") unless found
+      found
     end
 
     def use_block(context, block)
       return if block.nil?
       if block.arity == 1