On Thu, Apr 05, 2018 at 12:55:21PM +0900, Jun T wrote:
> 
> > 2018/04/02 7:10, Eitan Adler <lists@eitanadler.com> wrote:
> > 
> >    In libarchive based (BSD) tar implementations, all file types can be
> >    uncompressed, even without a filetype letter.  In GNU tar's case
> >    "recent" versions (for over 10 years) can do the same.
> >    As such, remove the check for tar type and just assume it works.
> 
> We can't assume it works since there are many systems where tar requires
> explicit compression flags. Even on some BSDs (OpenBSD and NetBSD) tar
> is not based on libarchive.
> 
> If the tar command is based on libarchive, we can detect it by using
> 'tar --version'.
> 
bsdtar 3.3.2 - libarchive 3.3.2 zlib/1.2.11 liblzma/5.2.3 bz2lib/1.0.6

yes :)

Bapt