class Lookbook::EventedFileUpdateChecker::Core

def changed(modified, added, removed)
  super
  Engine.files_changed(modified, added, removed) if @updated
end

def watching?(file)
  return true if super
  file = Pathname(file)
  name_parts = file.basename.to_s.split(".")
  ext = "." + name_parts.drop(1).join(".").to_s
  file.dirname.ascend do |dir|
    matching = @dirs.fetch(dir, []).map { |m| Regexp.new(m) }
    if matching.empty? || matching.find { |m| m.match?(ext) }
      break true
    elsif dir == @common_path || dir.root?
      break false
    end
  end
end