# File lib/thinking_sphinx/hooks/guard_presence.rb, line 13
  def call
    return if files.empty?

    stream.puts "WARNING: The following indexing guard files exist:"
    files.each do |file|
      stream.puts " * #{file}"
    end
    stream.puts "These files indicate indexing is already happening. If that is not the case,\nthese files should be deleted to ensure all indices can be processed.\n\n"
  end