Module: FriendlyNumbers::NumberToHumanSize

Extended by:
NumberToHumanSize
Included in:
NumberToHumanSize
Defined in:
lib/friendly_numbers/number_to_human_size.rb

Instance Method Summary collapse

Instance Method Details

#calculate_smallest_value_with_scale(value) ⇒ Object 



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# File 'lib/friendly_numbers/number_to_human_size.rb', line 17

def calculate_smallest_value_with_scale(value)
  scale = 0
  while value >= 1024
    value /= 1024.0
    scale += 1
  end
  [value, scale]
end

#convert(bytes, options) ⇒ Object 



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# File 'lib/friendly_numbers/number_to_human_size.rb', line 5

def convert(bytes, options)
  options = {
    precision: 3,
    scales: %w(Bytes KB MB GB TB PB)
  }.merge(options)

  value, scale = calculate_smallest_value_with_scale(bytes)
  precision = zero_precision_for_zero_remainder(value, options[:precision])

  format("%.#{precision}f %s", value, options[:scales][scale])
end

#zero_precision_for_zero_remainder(value, default_precision = 0) ⇒ Object 



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# File 'lib/friendly_numbers/number_to_human_size.rb', line 26

def zero_precision_for_zero_remainder(value, default_precision = 0)
  if (value % 1).zero?
    0
  else
    default_precision
  end
end