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# frozen_string_literal: true
require 'rubygems'
module Zip
class DOSTime < Time # :nodoc:all
# MS-DOS File Date and Time format as used in Interrupt 21H Function 57H:
# Register CX, the Time:
# Bits 0-4 2 second increments (0-29)
# Bits 5-10 minutes (0-59)
# bits 11-15 hours (0-24)
# Register DX, the Date:
# Bits 0-4 day (1-31)
# bits 5-8 month (1-12)
# bits 9-15 year (four digit year minus 1980)
attr_writer :absolute_time # :nodoc:
def absolute_time?
# If absolute time is not set, we can assume it is an absolute time
# because times do have timezone information by default.
@absolute_time.nil? || @absolute_time
end
def to_binary_dos_time
(sec / 2) +
(min << 5) +
(hour << 11)
end
def to_binary_dos_date
day +
(month << 5) +
((year - 1980) << 9)
end
# Deprecated. Remove for version 4.
def dos_equals(other) # rubocop:disable Naming/PredicateMethod
warn 'Zip::DOSTime#dos_equals is deprecated. Use `==` instead.'
self == other
end
# Dos time is only stored with two seconds accuracy.
def <=>(other)
return unless other.kind_of?(Time)
(to_i / 2) <=> (other.to_i / 2)
end
# Create a DOSTime instance from a vanilla Time instance.
def self.from_time(time)
local(time.year, time.month, time.day, time.hour, time.min, time.sec)
end
def self.parse_binary_dos_format(bin_dos_date, bin_dos_time)
second = 2 * (0b11111 & bin_dos_time)
minute = (0b11111100000 & bin_dos_time) >> 5
hour = (0b1111100000000000 & bin_dos_time) >> 11
day = (0b11111 & bin_dos_date)
month = (0b111100000 & bin_dos_date) >> 5
year = ((0b1111111000000000 & bin_dos_date) >> 9) + 1980
time = local(year, month, day, hour, minute, second)
time.absolute_time = false
time
end
if defined? JRUBY_VERSION && Gem::Version.new(JRUBY_VERSION) < '9.2.18.0'
module JRubyCMP # :nodoc:
def ==(other)
(self <=> other).zero?
end
def <(other)
(self <=> other).negative?
end
def <=(other)
(self <=> other) <= 0
end
def >(other)
(self <=> other).positive?
end
def >=(other)
(self <=> other) >= 0
end
end
include JRubyCMP
end
end
end
# Copyright (C) 2002, 2003 Thomas Sondergaard
# rubyzip is free software; you can redistribute it and/or
# modify it under the terms of the ruby license.
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