lib/zip/extra_field/old_unix.rb
module Zip
# Olf Info-ZIP Extra for UNIX uid/gid and file timestampes
class ExtraField::OldUnix < ExtraField::Generic
HEADER_ID = "UX"
register_map
def initialize(binstr = nil)
@uid = 0
@gid = 0
@atime = nil
@mtime = nil
binstr and merge(binstr)
end
attr_accessor :uid, :gid, :atime, :mtime
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
def ==(other)
@uid == other.uid &&
@gid == other.gid &&
@atime == other.atime &&
@mtime == other.mtime
end
def pack_for_local
[@atime, @mtime, @uid, @gid].pack("VVvv")
end
def pack_for_c_dir
[@atime, @mtime].pack("VV")
end
end
end