Gem::Package::TarHeader.from

# File tmp/rubies/ruby-3.0.5/lib/rubygems/package/tar_header.rb, line 100
def self.from(stream)
  header = stream.read 512
  empty = (EMPTY_HEADER == header)

  fields = header.unpack UNPACK_FORMAT

  new :name     => fields.shift,
      :mode     => strict_oct(fields.shift),
      :uid      => oct_or_256based(fields.shift),
      :gid      => oct_or_256based(fields.shift),
      :size     => strict_oct(fields.shift),
      :mtime    => strict_oct(fields.shift),
      :checksum => strict_oct(fields.shift),
      :typeflag => fields.shift,
      :linkname => fields.shift,
      :magic    => fields.shift,
      :version  => strict_oct(fields.shift),
      :uname    => fields.shift,
      :gname    => fields.shift,
      :devmajor => strict_oct(fields.shift),
      :devminor => strict_oct(fields.shift),
      :prefix   => fields.shift,

      :empty => empty
end