Class: Zip::ExtraField::OldUnix

Inherits:
Generic
  • Object
show all
Defined in:
lib/zip/extra_field/old_unix.rb

Overview

Olf Info-ZIP Extra for UNIX uid/gid and file timestampes

Constant Summary collapse

HEADER_ID = 
'UX'

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Generic

#initial_parse, name, register_map, #to_c_dir_bin, #to_local_bin

Constructor Details

#initialize(binstr = nil) ⇒ OldUnix

Returns a new instance of OldUnix.



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# File 'lib/zip/extra_field/old_unix.rb', line 7

def initialize(binstr = nil)
  @uid = 0
  @gid = 0
  @atime = nil
  @mtime = nil
  binstr && merge(binstr)
end

Instance Attribute Details

#atime ⇒ Object

Returns the value of attribute atime.



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# File 'lib/zip/extra_field/old_unix.rb', line 15

def atime
  @atime
end

#gid ⇒ Object

Returns the value of attribute gid.



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# File 'lib/zip/extra_field/old_unix.rb', line 15

def gid
  @gid
end

#mtime ⇒ Object

Returns the value of attribute mtime.



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# File 'lib/zip/extra_field/old_unix.rb', line 15

def mtime
  @mtime
end

#uid ⇒ Object

Returns the value of attribute uid.



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# File 'lib/zip/extra_field/old_unix.rb', line 15

def uid
  @uid
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/zip/extra_field/old_unix.rb', line 29

def ==(other)
  @uid == other.uid &&
    @gid == other.gid &&
    @atime == other.atime &&
    @mtime == other.mtime
end

#merge(binstr) ⇒ Object 



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# File 'lib/zip/extra_field/old_unix.rb', line 17

def merge(binstr)
  return if binstr.empty?
  size, content = initial_parse(binstr)
  # size: 0 for central directory. 4 for local header
  return if !size || size == 0
  atime, mtime, uid, gid = content.unpack('VVvv')
  @uid ||= uid
  @gid ||= gid
  @atime ||= atime
  @mtime ||= mtime
end

#pack_for_c_dir ⇒ Object 



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# File 'lib/zip/extra_field/old_unix.rb', line 40

def pack_for_c_dir
  [@atime, @mtime].pack('VV')
end

#pack_for_local ⇒ Object 



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# File 'lib/zip/extra_field/old_unix.rb', line 36

def pack_for_local
  [@atime, @mtime, @uid, @gid].pack('VVvv')
end