From ab29d45ae81760e82a6715a41674f58c3f51683a Mon Sep 17 00:00:00 2001
From: Brandon Mathis <brandon@imathis.com>
Date: Wed, 15 Jun 2011 18:31:22 -0400
Subject: [PATCH] 1. Added new include_code tag to allow auhtors to insert
 files from the file system with syntax highligting and a download link 2.
 Improved the gist tag to properly insert the sources in <noscript> tags 3.
 Improved semantics in the blockquote plugin and DRYed things up. 4. Pygments
 caching now stores to the _code_cache directory by default 5. Added a
 configuration for the default include_code directory 6. Updated the
 .gitignore

---
 .gitignore                                    |  4 +-
 _config.yml                                   |  5 +-
 themes/classic/_plugins/blockquote.rb         | 28 +++----
 themes/classic/_plugins/gist_tag.rb           | 81 +++++++++++--------
 themes/classic/_plugins/include_code.rb       | 40 +++++++++
 .../classic/_plugins/pygments_cache_patch.rb  |  2 +-
 6 files changed, 106 insertions(+), 54 deletions(-)
 create mode 100644 themes/classic/_plugins/include_code.rb

diff --git a/.gitignore b/.gitignore
index 990b0a0..9413ba3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,8 @@
 .bundle
 .DS_Store
 .sass-cache
-.gist_cache
-_cache
+_gist_cache
+_code_cache
 _assets
 public
 source/_stash
diff --git a/_config.yml b/_config.yml
index 650ab27..0e50cab 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1,16 +1,17 @@
 # Required configuration
 source: source
 destination: public
+code_dir: downloads/code
 port: 4000
 
-url: http://yoursite.com
+url: http://octopress.dev
 title: My Octopress Blog
 subtitle: A blogging framework for hackers.
 author: Your Name
 subscribe_rss: /atom.xml
 subscribe_email: http://feedburner.com/asdfasdf
 
-markdown: rdiscount
+#markdown: rdiscount
 pygments: true
 recent_posts: 1
 simple_search: http://google.com/search
diff --git a/themes/classic/_plugins/blockquote.rb b/themes/classic/_plugins/blockquote.rb
index 21ebc5d..8048f47 100644
--- a/themes/classic/_plugins/blockquote.rb
+++ b/themes/classic/_plugins/blockquote.rb
@@ -1,21 +1,20 @@
 #
-# Author: Josediaz Gonzalez - https://github.com/josegonzalez
-# Source URL: https://github.com/josegonzalez/josediazgonzalez.com/blob/master/_plugins/blockquote.rb
-# Modified by Brandon Mathis removed pullquotes and added simple cite paramaters
+# Author: Brandon Mathis
+# Based on the work of: Josediaz Gonzalez - https://github.com/josegonzalez/josediazgonzalez.com/blob/master/_plugins/blockquote.rb
 #
 require './_plugins/titlecase.rb'
 module Jekyll
 
   # Outputs a string with a given attribution as a quote
   #
-  #   {% blockquote John Paul Jones %}
-  #     Monkeys!
+  #   {% blockquote Bobby Willis http://google.com/blah the search for bobby's mom %}
+  #   Wheeee!
   #   {% endblockquote %}
   #   ...
   #   <blockquote>
-  #     Monkeys!
-  #     <br />
-  #     John Paul Jones
+  #     <p>Wheeee!</p>
+  #     <footer>
+  #     <strong>John Paul Jones</strong><cite><a href="http://google.com/blah">The Search For Bobby's Mom</a>
   #   </blockquote>
   #
   class Blockquote < Liquid::Block
@@ -42,15 +41,16 @@ module Jekyll
 
     def render(context)
       output = super
-      if @by.nil?
-        '<blockquote><p>' + output.join + '</p></blockquote>'
-      elsif !@title.nil?
-        '<blockquote><p>' + output.join + '</p>' + '<p><strong>' + @by + '</strong>' + '<cite><a class="source" href="' + @source + '">' + @title + '</a></cite></p></blockquote>'
+      author = "<strong>#{@by}</strong>"
+      cite = "<cite><a class='source' href='#{@source}'>#{(@title || 'source')}</a></cite>"
+      reply = if @by.nil?
+        "<p>#{output.join.gsub(/\n\n/, '</p><p>')}</p>"
       elsif !@source.nil?
-        '<blockquote><p>' + output.join + '</p>' + '<p><strong>' + @by + '</strong>' + '<cite><a class="source" href="' + @source + '">source</a></cite></p></blockquote>'
+        "<p>#{output.join.gsub(/\n\n/, '</p><p>')}</p><footer>#{author + cite}</footer>"
       else
-        '<blockquote><p>' + output.join + '</p>' + '<p><strong>' + @by + '</strong></p></blockquote>'
+        "<p>#{output.join.gsub(/\n\n/, '</p><p>')}</p><footer>#{author}</footer>"
       end
+      "<blockquote>#{reply}</blockquote>"
     end
   end
 end
diff --git a/themes/classic/_plugins/gist_tag.rb b/themes/classic/_plugins/gist_tag.rb
index 1f37416..0a8797f 100644
--- a/themes/classic/_plugins/gist_tag.rb
+++ b/themes/classic/_plugins/gist_tag.rb
@@ -1,9 +1,11 @@
-# Nicked from Brandon Tilly
-# Gist https://gist.github.com/803483
+# A Liquid tag for Jekyll sites that allows embedding Gists and showing code for non-JavaScript enabled browsers and readers.
+# by: Brandon Tilly
+# Source URL: https://gist.github.com/1027674
 # Post http://brandontilley.com/2011/01/31/gist-tag-for-jekyll.html
 #
-# Example usage: {% gist 803483 gist_tag.rb %} //embeds a gist for this plugin
+# Example usage: {% gist 1027674 gist_tag.rb %} //embeds a gist for this plugin
 
+require 'cgi'
 require 'digest/md5'
 require 'net/https'
 require 'uri'
@@ -12,60 +14,70 @@ module Jekyll
   class GistTag < Liquid::Tag
     def initialize(tag_name, text, token)
       super
-      system('mkdir -p .gist_cache')
-      @text         = text
-      @cache        = true
-      @cache_folder = File.expand_path "../.gist_cache", File.dirname(__FILE__)
+      @text           = text
+      @cache_disabled = false
+      @cache_folder   = File.expand_path "../_gist_cache", File.dirname(__FILE__)
+      FileUtils.mkdir_p @cache_folder
     end
 
     def render(context)
-      return "" unless @text =~ /([\d]*) (.*)/
+      if parts = @text.match(/([\d]*) (.*)/)
+        gist, file = parts[1].strip, parts[2].strip
+        script_url = script_url_for gist, file
+        code       = get_cached_gist(gist, file) || get_gist_from_web(gist, file)
+        html_output_for script_url, code
+      else
+        ""
+      end
+    end
 
-      gist, file = $1.strip, $2.strip
-      script_url = "https://gist.github.com/#{gist}.js?file=#{file}"
+    def html_output_for(script_url, code)
+      code = CGI.escapeHTML code
+      <<-HTML
+<script src='#{script_url}'></script>
+<noscript><pre><code>#{code}</code></pre></noscript>
+      HTML
+    end
 
-      code       = get_cached_gist(gist, file) || get_gist_from_web(gist, file)
-      code       = code.gsub "<", "&lt;"
-      string     = "<script src='#{script_url}'></script>"
-      string    += "<noscript><pre><code>#{code}</code></pre></noscript>"
-      return string
+    def script_url_for(gist_id, filename)
+      "https://gist.github.com/#{gist_id}.js?file=#{filename}"
     end
 
     def get_gist_url_for(gist, file)
-      "https://gist.github.com/raw/#{gist}/#{file}"
+      "https://raw.github.com/gist/#{gist}/#{file}"
     end
 
-    def cache_gist(gist, file, data)
-      file = get_cache_file_for gist, file
-      File.open(file, "w+") do |f|
-        f.write(data)
+    def cache(gist, file, data)
+      cache_file = get_cache_file_for gist, file
+      File.open(cache_file, "w") do |io|
+        io.write data
       end
     end
 
     def get_cached_gist(gist, file)
-      return nil if @cache == false
-      file = get_cache_file_for gist, file
-      return nil unless File.exist?(file)
-      return File.new(file).readlines.join
+      return nil if @cache_disabled
+      cache_file = get_cache_file_for gist, file
+      File.read cache_file if File.exist? cache_file
     end
 
     def get_cache_file_for(gist, file)
-      gist.gsub! /[^a-zA-Z0-9\-_\.]/, ''
-      file.gsub! /[^a-zA-Z0-9\-_\.]/, ''
-      md5 = Digest::MD5.hexdigest "#{gist}-#{file}"
+      bad_chars = /[^a-zA-Z0-9\-_.]/
+      gist      = gist.gsub bad_chars, ''
+      file      = file.gsub bad_chars, ''
+      md5       = Digest::MD5.hexdigest "#{gist}-#{file}"
       File.join @cache_folder, "#{gist}-#{file}-#{md5}.cache"
     end
 
     def get_gist_from_web(gist, file)
-      gist_url          = get_gist_url_for(gist, file)
-      raw_uri           = URI.parse(gist_url)
-      https             = Net::HTTP.new(raw_uri.host, raw_uri.port)
+      gist_url          = get_gist_url_for gist, file
+      raw_uri           = URI.parse gist_url
+      https             = Net::HTTP.new raw_uri.host, raw_uri.port
       https.use_ssl     = true
       https.verify_mode = OpenSSL::SSL::VERIFY_NONE
-      request           = Net::HTTP::Get.new(raw_uri.request_uri)
-      data              = https.request(request)
+      request           = Net::HTTP::Get.new raw_uri.request_uri
+      data              = https.request request
       data              = data.body
-      cache_gist(gist, file, data) unless @cache == false
+      cache gist, file, data unless @cache_disabled
       data
     end
   end
@@ -73,11 +85,10 @@ module Jekyll
   class GistTagNoCache < GistTag
     def initialize(tag_name, text, token)
       super
-      @cache = false
+      @cache_disabled = true
     end
   end
 end
 
 Liquid::Template.register_tag('gist', Jekyll::GistTag)
 Liquid::Template.register_tag('gistnocache', Jekyll::GistTagNoCache)
-
diff --git a/themes/classic/_plugins/include_code.rb b/themes/classic/_plugins/include_code.rb
new file mode 100644
index 0000000..fa5c76f
--- /dev/null
+++ b/themes/classic/_plugins/include_code.rb
@@ -0,0 +1,40 @@
+require 'pathname'
+
+module Jekyll
+
+  class IncludeCodeTag < Liquid::Tag
+    def initialize(tag_name, file, tokens)
+      super
+      @file = file.strip
+    end
+
+    def render(context)
+      code_dir = (context.registers[:site].config['code_dir'] || 'downloads/code')
+      code_path = (Pathname.new(context.registers[:site].source) + code_dir).expand_path
+      file = code_path + @file
+
+      if File.symlink?(code_path)
+        return "Code directory '#{code_path}' cannot be a symlink"
+      end
+
+      unless file.file?
+        return "File #{file} could not be found"
+      end
+
+      Dir.chdir(code_path) do
+        code = file.read
+        file_type = file.extname
+        url = "#{context.registers[:site].config['url']}/#{code_dir}/#{@file}"
+        source = "<figure><figcaption><span>#{file.basename}</span><a href='#{url}'>download</a></figcaption>\n"
+        source += "{% highlight #{file_type} %}\n" + code + "\n{% endhighlight %}</figure>"
+        partial = Liquid::Template.parse(source)
+        context.stack do
+          partial.render(context)
+        end
+      end
+    end
+  end
+
+end
+
+Liquid::Template.register_tag('include_code', Jekyll::IncludeCodeTag)
diff --git a/themes/classic/_plugins/pygments_cache_patch.rb b/themes/classic/_plugins/pygments_cache_patch.rb
index 36c78d2..09c0984 100644
--- a/themes/classic/_plugins/pygments_cache_patch.rb
+++ b/themes/classic/_plugins/pygments_cache_patch.rb
@@ -6,7 +6,7 @@
 require 'fileutils'
 require 'digest/md5'
 
-PYGMENTS_CACHE_DIR = File.expand_path('../../_cache', __FILE__)
+PYGMENTS_CACHE_DIR = File.expand_path('../../_code_cache', __FILE__)
 FileUtils.mkdir_p(PYGMENTS_CACHE_DIR)
 
 Jekyll::HighlightBlock.class_eval do