Jekyll Import RSS-Markdown

rss-markdown.rb

# Created by Kendall Buchanan (https://github.com/kendagriff) on 2011-12-22.
# Use at your own risk. The end.
#
# Usage:
#   (URL)
#   ruby -r 'jekyll/jekyll-import/rss' -e "JekyllImport::RSS.process(:source => 'http://yourdomain.com/your-favorite-feed.xml')"
#
#   (Local file)
#   ruby -r 'jekyll/jekyll-import/rss' -e "JekyllImport::RSS.process(:source => './somefile/on/your/computer.xml')"

require 'pandoc-ruby'

module JekyllImport
  module Importers
    class RSS < Importer
      def self.specify_options(c)
        c.option 'source', '--source NAME', 'The RSS file or URL to import'
      end

      def self.validate(options)
        if options['source'].nil?
          abort "Missing mandatory option --source."
        end
      end

      def self.require_deps
        JekyllImport.require_with_fallback(%w[
          rss/1.0
          rss/2.0
          open-uri
          fileutils
          safe_yaml
        ])
      end

      # Process the import.
      #
      # source - a URL or a local file String.
      #
      # Returns nothing.
      def self.process(options)
        source = options.fetch('source')

        content = ""
        open(source) { |s| content = s.read }
        rss = ::RSS::Parser.parse(content, false)

        raise "There doesn't appear to be any RSS items at the source (#{source}) provided." unless rss

        rss.items.each do |item|
          formatted_date = item.date.strftime('%Y-%m-%d')
          post_name = item.title.split(%r{ |#|\)|\(|'|!|/|:|&|-|$|,}).map do |i|
            i.downcase if i != ''
          end.compact.join('-')
          name = "#{formatted_date}-#{post_name}"

          header = {
            'layout' => 'post',
            'title' => item.title,
            'date' => item.date.strftime('%Y-%m-%d %R')
          }

          FileUtils.mkdir_p("_posts")

          File.open("_posts/#{name}.md", "w") do |f|
            f.puts header.to_yaml
            f.puts "---\n\n"
            f.puts PandocRuby.html(item.description).to_markdown

          end
        end
      end
    end
  end
end