replace bluecloth with kramdown pure-ruby markdown parser

Makefile

@@ -256,7 +256,6 @@ build/docs/tutorials/getting-started-with-logstash.md: build/docs/tutorials/gett
 build/docs/tutorials/getting-started-with-logstash.xml: docs/tutorials/getting-started-with-logstash.asciidoc | build/docs/tutorials
 	$(QUIET)asciidoc -b docbook -o $@ $<
 
-# bluecloth gem doesn't work on jruby. Use ruby.
 build/docs/inputs/%.html: lib/logstash/inputs/%.rb docs/docgen.rb docs/plugin-doc.html.erb | build/docs/inputs
 	$(QUIET)ruby docs/docgen.rb -o build/docs $<
 	$(QUIET)sed -i -e 's/%VERSION%/$(VERSION)/g' $@

docs/docgen.rb

@@ -1,7 +1,7 @@
 require "rubygems"
 require "erb"
 require "optparse"
-require "bluecloth" # for markdown parsing
+require "kramdown" # markdown parser
 
 $: << Dir.pwd
 $: << File.join(File.dirname(__FILE__), "..", "lib")
@@ -66,7 +66,7 @@ class LogStashConfigDocGenerator
     @class_description = @comments.join("\n")
     clear_comments
   end # def set_class_description
- 
+
   def add_comment(comment)
     return if comment == "encoding: utf-8"
     @comments << comment
@@ -84,7 +84,7 @@ class LogStashConfigDocGenerator
     # are gone from logstash.
     name = name.to_s unless name.is_a?(Regexp)
 
-    description = BlueCloth.new(@comments.join("\n")).to_html
+    description = Kramdown::Document.new(@comments.join("\n")).to_html
     @attributes[name][:description] = description
     clear_comments
   end # def add_config
@@ -175,7 +175,7 @@ class LogStashConfigDocGenerator
       mixin.downcase!
       parse(File.new(File.join(File.dirname(file), "..", "plugin_mixins", "#{mixin}.rb")).read)
     end
-    
+
     parse(code)
 
     puts "Generating docs for #{file}"
@@ -202,7 +202,7 @@ class LogStashConfigDocGenerator
     is_contrib_plugin = @contrib_list.include?(file)
 
     # descriptions are assumed to be markdown
-    description = BlueCloth.new(@class_description).to_html
+    description = Kramdown::Document.new(@class_description).to_html
 
     klass.get_config.each do |name, settings|
       @attributes[name].merge!(settings)
@@ -225,7 +225,7 @@ class LogStashConfigDocGenerator
         html.gsub!("%PLUGIN%", @name)
         out.puts(html)
       end
-    else 
+    else
       puts template.result(binding)
     end
   end # def generate
@@ -235,7 +235,7 @@ end # class LogStashConfigDocGenerator
 if __FILE__ == $0
   opts = OptionParser.new
   settings = {}
-  opts.on("-o DIR", "--output DIR", 
+  opts.on("-o DIR", "--output DIR",
           "Directory to output to; optional. If not specified,"\
           "we write to stdout.") do |val|
     settings[:output] = val

logstash.gemspec

@@ -33,7 +33,7 @@ Gem::Specification.new do |gem|
   # Input/Output/Filter dependencies
   #TODO Can these be optional?
   gem.add_runtime_dependency "awesome_print"                    #(MIT license)
-  gem.add_runtime_dependency "aws-sdk"                          #{Apache 2.0 license}  
+  gem.add_runtime_dependency "aws-sdk"                          #{Apache 2.0 license}
   gem.add_runtime_dependency "addressable"                      #(Apache 2.0 license)
   gem.add_runtime_dependency "extlib", ["0.9.16"]               #(MIT license)
   gem.add_runtime_dependency "ffi"                              #(LGPL-3 license)
@@ -99,11 +99,11 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency "rspec"            #(MIT license)
   gem.add_runtime_dependency "insist", "1.0.0"  #(Apache 2.0 license)
   gem.add_runtime_dependency "rumbster"         # For faking smtp in email tests (Apache 2.0 license)
-  
-  #Development Deps
-  gem.add_development_dependency "coveralls"
-  gem.add_development_dependency "bluecloth"
 
-  #Jenkins Deps
+  # Development Deps
+  gem.add_development_dependency "coveralls"
+  gem.add_development_dependency "kramdown"     # pure-ruby markdown parser (MIT license)
+
+  # Jenkins Deps
   gem.add_runtime_dependency "ci_reporter"
 end