lib/nanoc/cli.rb in nanoc-4.8.19 vs lib/nanoc/cli.rb in nanoc-4.9.0

@@ -228,10 +228,10 @@
     %w[LC_ALL LC_CTYPE LANG].any? { |e| ENV[e] =~ /UTF/i }
   end
 
   # @return [Boolean] true if color support is present, false if not
   def self.enable_ansi_colors?(io)
-    io.tty?
+    io.tty? && !ENV.key?('NO_COLOR')
   end
 
   def self.after_setup_procs
     @after_setup_procs || []
   end