Merge pull request #876 from GustavoCaso/undef-==-from-redis-future

Deprecate ==  and != from Redis::Future

Author: byroot

lib/redis.rb

@@ -5,6 +5,10 @@
 
 class Redis
 
+  def self.deprecate(message, trace = caller[0])
+    $stderr.puts "\n#{message} (in #{trace})"
+  end
+
   def self.current
     @current ||= Redis.new
   end

lib/redis/pipeline.rb

@@ -139,6 +139,13 @@ def initialize(command, transformation, timeout)
       @object = FutureNotReady
     end
 
+    def ==(*)
+      message = "The method == and != is deprecated for Redis::Future and will be removed in 4.2.0"
+      message << " - You probably meant to call .value == or .value !="
+      ::Redis.deprecate(message)
+      super
+    end
+
     def inspect
       "<Redis::Future #{@command.inspect}>"
     end