blog/plugins/render_partial.rb

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# Title: Render Partial Tag for Jekyll
# Author: Brandon Mathis http://brandonmathis.com
# Description: Import files on your filesystem into any blog post and render them inline.
# Note: Paths are relative to the source directory, if you import a file with yaml front matter, the yaml will be stripped out.
#
# Syntax {% render_partial path/to/file %}
#
# Example 1:
# {% render_partial about/_bio.markdown %}
#
# This will import source/about/_bio.markdown and render it inline.
# In this example I used an underscore at the beginning of the filename to prevent Jekyll
# from generating an about/bio.html (Jekyll doesn't convert files beginning with underscores)
#
# Example 2:
# {% render_partial ../README.markdown %}
#
# You can use relative pathnames, to include files outside of the source directory.
# This might be useful if you want to have a page for a project's README without having
# to duplicated the contents
#
#
require 'pathname'
require './plugins/octopress_filters'
module Jekyll
class RenderPartialTag < Liquid::Tag
include OctopressFilters
def initialize(tag_name, markup, tokens)
@file = nil
@raw = false
if markup =~ /^(\S+)\s?(\w+)?/
@file = $1.strip
@raw = $2 == 'raw'
end
super
end
def render(context)
file_dir = (context.registers[:site].source || 'source')
file_path = Pathname.new(file_dir).expand_path
file = file_path + @file
unless file.file?
return "File #{file} could not be found"
end
Dir.chdir(file_path) do
contents = file.read
if contents =~ /\A-{3}.+[^\A]-{3}\n(.+)/m
contents = $1.lstrip
end
contents = pre_filter(contents)
if @raw
contents
else
partial = Liquid::Template.parse(contents)
context.stack do
partial.render(context)
end
end
end
end
end
end
Liquid::Template.register_tag('render_partial', Jekyll::RenderPartialTag)