bin/riemann-net in riemann-tools-0.1.7 vs bin/riemann-net in riemann-tools-0.1.8

@@ -10,10 +10,12 @@
   opt :interfaces, "Interfaces to monitor", :type => :strings, :default => nil
   opt :ignore_interfaces, "Interfaces to ignore", :type => :strings, :default =>['lo']
 
   def initialize
     @old_state = nil
+    @interfaces = opts[:interfaces].map(&:dup) if opts[:interfaces]
+    @ignore_interfaces = opts[:ignore_interfaces].map(&:dup)
   end
 
   def state
     f = File.read('/proc/net/dev')
     state = f.split("\n").inject({}) do |s, line|
@@ -46,17 +48,17 @@
       
       s
     end
 
     # Filter interfaces
-    if is = opts[:interfaces]
+    if is = @interfaces
       state = state.select do |service, value|
         is.include? service.split(' ').first
       end
     end
 
     state = state.reject do |service, value|
-      opts[:ignore_interfaces].include? service.split(' ').first
+      @ignore_interfaces.include? service.split(' ').first
     end
 
     state
   end