Log commands with Paperclip.options[:log_command] = true

lib/paperclip.rb

@@ -62,6 +62,7 @@ def options
         :image_magick_path => nil,
         :command_path      => nil,
         :log               => true,
+        :log_command       => false,
         :swallow_stderr    => true
       }
     end
@@ -90,6 +91,7 @@ def interpolates key, &block
     def run cmd, params = "", expected_outcodes = 0
       command = %Q<#{%Q[#{path_for_command(cmd)} #{params}].gsub(/\s+/, " ")}>
       command = "#{command} 2>#{bit_bucket}" if Paperclip.options[:swallow_stderr]
+      Paperclip.log(command) if Paperclip.options[:log_command]
       output = `#{command}`
       unless [expected_outcodes].flatten.include?($?.exitstatus)
         raise PaperclipCommandLineError, "Error while running #{cmd}"

test/paperclip_test.rb

@@ -30,6 +30,14 @@ class PaperclipTest < Test::Unit::TestCase
       Paperclip.expects(:"`").with("convert one.jpg two.jpg 2>/dev/null")
       Paperclip.run("convert", "one.jpg two.jpg")
     end
+
+    should "log the command when :log_command is set" do
+      Paperclip.options[:log_command] = true
+      Paperclip.expects(:bit_bucket).returns("/dev/null")
+      Paperclip.expects(:log).with("this is the command 2>/dev/null")
+      Paperclip.expects(:"`").with("this is the command 2>/dev/null")
+      Paperclip.run("this","is the command")
+    end
   end
 
   should "raise when sent #processor and the name of a class that exists but isn't a subclass of Processor" do