Module: Trove::Utils

Defined in:
lib/trove/utils.rb

Class Method Summary collapse

Class Method Details

.human_size(size) ⇒ Object

TODO improve performance



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# File 'lib/trove/utils.rb', line 4

def self.human_size(size)
  if size < 2**10
    units = "B"
  elsif size < 2**20
    size /= (2**10).to_f
    units = "KB"
  elsif size < 2**30
    size /= (2**20).to_f
    units = "MB"
  else
    size /= (2**30).to_f
    units = "GB"
  end

  round = size < 9.95 ? 1 : 0
  "#{size.round(round)}#{units}"
end

.progress(stream, filename, current_size, total_size) ⇒ Object 



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# File 'lib/trove/utils.rb', line 22

def self.progress(stream, filename, current_size, total_size)
  return unless stream.tty?

  width = 50
  progress = (100.0 * current_size / total_size).floor
  completed = (width / 100.0 * progress).round
  remaining = width - completed
  stream.print "\r#{filename} [#{"=" * completed}#{" " * remaining}] %3s%% %11s " % [progress, "#{Utils.human_size(current_size)}/#{Utils.human_size(total_size)}"]
  stream.print "\n" if current_size == total_size
end