added support for pygments.rb removing dependency on pygments, added support for caching highlighted code from pygments.rb and added default line numbering. Javascript auto line numbering now only occurs for embedded gists

plugins/code_block.rb

@@ -41,9 +41,12 @@
 # <pre><code>&lt;sarcasm> Ooooh, sarcasm... How original!&lt;/sarcasm></code></pre>
 # </figure>
 #
+require './plugins/pygments_code'
+
 module Jekyll
 
   class CodeBlock < Liquid::Block
+    include HighlightCode
     CaptionUrlTitle = /(\S[\S\s]*)\s+(https?:\/\/)(\S+)\s+(.+)/i
     CaptionUrl = /(\S[\S\s]*)\s+(https?:\/\/)(\S+)/i
     Caption = /(\S[\S\s]*)/
@@ -75,7 +78,7 @@ module Jekyll
       if @filetype
         @filetype = 'objc' if @filetype == 'm'
         @filetype = 'perl' if @filetype == 'pl'
-        source += "{% highlight #{@filetype} %}\n" + code + "\n{% endhighlight %}</figure></div>"
+        source += " #{highlight(code, @filetype)}</figure></div>"
       else
         source += "<pre><code>" + code.lstrip.rstrip.gsub(/</,'&lt;') + "</code></pre></figure></div>"
       end

plugins/include_code.rb

@@ -20,11 +20,13 @@
 # will output a figcaption with the title: Example 2 (test.js)
 #
 
+require './plugins/pygments_code'
 require 'pathname'
 
 module Jekyll
 
   class IncludeCodeTag < Liquid::Tag
+    include HighlightCode
     def initialize(tag_name, markup, tokens)
       @title = nil
       @file = nil
@@ -50,13 +52,13 @@ module Jekyll
 
       Dir.chdir(code_path) do
         code = file.read
-        @filetype = file.extname
+        @filetype = file.extname.sub('.','')
         @filetype = 'objc' if @filetype == 'm'
         @filetype = 'perl' if @filetype == 'pl'
         title = @title ? "#{@title} (#{file.basename})" : file.basename
         url = "#{context.registers[:site].config['url']}/#{code_dir}/#{@file}"
         source = "<div><figure role=code><figcaption><span>#{title}</span> <a href='#{url}'>download</a></figcaption>\n"
-        source += "{% highlight #{@filetype} %}\n" + code + "\n{% endhighlight %}</figure></div>"
+        source += " #{highlight(code, @filetype)}</figure></div>"
         partial = Liquid::Template.parse(source)
         context.stack do
           partial.render(context)

plugins/pygments_cache_patch.rb

@@ -1,30 +0,0 @@
-#
-# Author: Raimonds Simanovskis, http://blog.rayapps.com/
-# Source URL: https://github.com/rsim/blog.rayapps.com/blob/master/_plugins/pygments_cache_patch.rb
-#
-
-require 'fileutils'
-require 'digest/md5'
-
-PYGMENTS_CACHE_DIR = File.expand_path('../../_code_cache', __FILE__)
-FileUtils.mkdir_p(PYGMENTS_CACHE_DIR)
-
-Jekyll::HighlightBlock.class_eval do
-  def render_pygments(context, code)
-    if defined?(PYGMENTS_CACHE_DIR)
-      path = File.join(PYGMENTS_CACHE_DIR, "#{@lang}-#{Digest::MD5.hexdigest(code)}.html")
-      if File.exist?(path)
-        highlighted_code = File.read(path)
-      else
-        highlighted_code = Albino.new(code, @lang).to_s(@options)
-        File.open(path, 'w') {|f| f.print(highlighted_code) }
-      end
-    else
-      highlighted_code = Albino.new(code, @lang).to_s(@options)
-    end
-    output = add_code_tags(highlighted_code, @lang)
-    output = context["pygments_prefix"] + output if context["pygments_prefix"]
-    output = output + context["pygments_suffix"] if context["pygments_suffix"]
-    output
-  end
-end

plugins/pygments_code.rb

@@ -0,0 +1,34 @@
+require 'pygments'
+require 'fileutils'
+require 'digest/md5'
+
+PYGMENTS_CACHE_DIR = File.expand_path('../../_code_cache', __FILE__)
+FileUtils.mkdir_p(PYGMENTS_CACHE_DIR)
+
+module HighlightCode
+  def highlight(str, lang)
+    str = pygments(str, lang).match(/<pre>(.+)<\/pre>/m)[1].to_s.gsub(/\s*$/, '') #strip out divs <div class="highlight">
+    table = '<div class="highlight"><table cellpadding="0" cellspacing="0"><tr><td class="gutter"><pre class="line-numbers">'
+    code = ''
+    str.lines.each_with_index do |line,index|
+      table += "<span class='line'>#{index+1}</span>\n"
+      code  += "<div class='line'>#{line}</div>"
+    end
+    table += "</pre></td><td class='code' width='100%'><pre><code class='#{lang}'>#{code}</code></pre></td></tr></table></div>"
+  end
+
+  def pygments(code, lang)
+    if defined?(PYGMENTS_CACHE_DIR)
+      path = File.join(PYGMENTS_CACHE_DIR, "#{lang}-#{Digest::MD5.hexdigest(code)}.html")
+      if File.exist?(path)
+        highlighted_code = File.read(path)
+      else
+        highlighted_code = Pygments.highlight(code, :lexer => lang, :formatter => 'html')
+        File.open(path, 'w') {|f| f.print(highlighted_code) }
+      end
+    else
+      highlighted_code = Pygments.highlight(code, :lexer => lang, :formatter => 'html')
+    end
+    highlighted_code
+  end
+end