diff options
Diffstat (limited to 'plugins/include_code.rb')
-rw-r--r-- | plugins/include_code.rb | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/plugins/include_code.rb b/plugins/include_code.rb new file mode 100644 index 00000000..b063f14f --- /dev/null +++ b/plugins/include_code.rb @@ -0,0 +1,55 @@ +# Title: Include Code Tag for Jekyll +# Author: Brandon Mathis http://brandonmathis.com +# Description: Import files on your filesystem into any blog post as embedded code snippets with syntax highlighting and a download link. +# Configuration: You can set default import path in _config.yml (defaults to code_dir: downloads/code) +# +# Syntax {% include_code path/to/file %} +# +# Example: +# {% include_code javascripts/test.js %} +# +# This will import test.js from source/downloads/code/javascripts/test.js +# and output the contents in a syntax highlighted code block inside a figure, +# with a figcaption listing the file name and download link +# + +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 role=code><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) |