Add plain text formatter

lib/chupa-text/command/chupa-text.rb

@@ -26,10 +26,13 @@ def run(*arguments)
         end
       end
 
+      AVAILABLE_FORMATS = [:json, :text]
+
       def initialize
         @input = nil
         @configuration = Configuration.default
         @enable_gems = true
+        @format = :json
       end
 
       def run(*arguments)
@@ -89,6 +92,11 @@ def create_option_parser
                   "Appends PATH to decomposer load path.") do |path|
           $LOAD_PATH << path
         end
+        parser.on("--format=FORMAT", "Output FORMAT (#{AVAILABLE_FORMATS.join(',')})") do |format|
+          format = format.to_sym
+          raise ArgumentError, "Unknown format: #{format}" unless AVAILABLE_FORMATS.include?(format)
+          @format = format
+        end
 
         parser.separator("")
         parser.separator("Log related options:")
@@ -150,7 +158,12 @@ def create_data
       end
 
       def create_formatter
-        Formatters::JSON.new($stdout)
+        case @format
+        when :json
+          Formatters::JSON.new($stdout)
+        when :text
+          Formatters::Text.new($stdout)
+        end
       end
     end
   end

lib/chupa-text/formatters.rb

@@ -15,3 +15,4 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
 require "chupa-text/formatters/json"
+require "chupa-text/formatters/text"

lib/chupa-text/formatters/text.rb

@@ -0,0 +1,22 @@
+module ChupaText
+  module Formatters
+    class Text
+      def initialize(output)
+        @output = output
+        @texts = []
+      end
+
+      def format_start(data)
+      end
+
+      def format_extracted(data)
+        @texts << data.body
+      end
+
+      def format_finish(data)
+        @output << @texts.join("\n\x0c\n")
+        @output << "\n"
+      end
+    end
+  end
+end