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# frozen_string_literal: true
begin
  require 'io/console/size'
rescue LoadError
  # for JRuby
  require 'io/console'
end

##
# Stats printer that prints just the files being documented with a progress
# bar

class RDoc::Stats::Normal < RDoc::Stats::Quiet

  def begin_adding # :nodoc:
    puts "Parsing sources..."
    @last_width = 0
  end

  ##
  # Prints a file with a progress bar

  def print_file files_so_far, filename
    progress_bar = sprintf("%3d%% [%2d/%2d]  ",
                           100 * files_so_far / @num_files,
                           files_so_far,
                           @num_files)

    if $stdout.tty?
      # Print a progress bar, but make sure it fits on a single line. Filename
      # will be truncated if necessary.
      size = IO.respond_to?(:console_size) ? IO.console_size : IO.console.winsize
      terminal_width = size[1].to_i.nonzero? || 80
      max_filename_size = (terminal_width - progress_bar.size) - 1

      if filename.size > max_filename_size then
        # Turn "some_long_filename.rb" to "...ong_filename.rb"
        filename = filename[(filename.size - max_filename_size) .. -1]
        filename[0..2] = "..."
      end

      # Clean the line with whitespaces so that leftover output from the
      # previous line doesn't show up.
      $stdout.print("\r\e[K") if @last_width && @last_width > 0
      @last_width = progress_bar.size + filename.size
      term = "\r"
    else
      term = "\n"
    end
    $stdout.print(progress_bar, filename, term)
    $stdout.flush
  end

  def done_adding # :nodoc:
    puts
  end

end
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