Script for caching external links from a jekyll site.

cache_recipies.rb

require "jekyll"
require "ostruct"
require "faraday"

def data_for_file(path)
    content = File.read(path)
    if content =~ Jekyll::Document::YAML_FRONT_MATTER_REGEXP
      content = $POSTMATCH
      data = SafeYAML.load(Regexp.last_match(1))
      return data
    end
  end

files = Dir["./source/_cookbook/*.md"]
files.each do |file|
  data = data_for_file(file)
  link = data["link"]
  name = File.basename(file, ".*")
  cache_file = "./recipe_cache/#{name}.html"
  if link
    if File.exists?(cache_file)
      puts "#{name} already cached"
    else
      response = Faraday.get(link)
      File.write(cache_file, response.body)
      puts "#{name} cached"
    end
  else
    puts "ERROR: #{name} has no link!"
  end
end