class Vagrant::Util::Numeric

Constants

BYTES_CONVERSION_MAP
EXABYTE
GIGABYTE
KILOBYTE

Authors Note: This conversion has been borrowed from the ActiveSupport Numeric class Conversion helper constants

LOGGER
MEGABYTE
PETABYTE
SHORTHAND_MATCH_REGEX

Regex borrowed from the vagrant-disksize config class

TERABYTE

Public Class Methods

reset!() click to toggle source

@private Reset the cached values for platform. This is not considered a public API and should only be used for testing.

# File lib/vagrant/util/numeric.rb, line 55
def reset!
  instance_variables.each(&method(:remove_instance_variable))
end
string_to_bytes(str) click to toggle source

A helper that converts a shortcut string to its bytes representation. The expected format of `str` is essentially: “<Number>XX” Where `XX` is shorthand for KB, MB, GB, TB, PB, or EB. For example, 50 megabytes:

str = “50MB”

@param [String] - str @return [Integer,nil] - bytes - returns nil if method fails to convert to bytes

# File lib/vagrant/util/numeric.rb, line 33
def string_to_bytes(str)
  bytes = nil

  str = str.to_s.strip
  matches = SHORTHAND_MATCH_REGEX.match(str)
  if matches
    number = matches[:number].to_i
    unit = matches[:unit].to_sym

    if BYTES_CONVERSION_MAP.key?(unit)
      bytes = number * BYTES_CONVERSION_MAP[unit]
    else
      LOGGER.error("An invalid unit or format was given, string_to_bytes cannot convert #{str}")
    end
  end

  bytes
end