Re: t5562: gzip -k is not portable

[Jeff King <peff@peff.net>]

On Tue, Jun 19, 2018 at 10:40:16PM +0200, Torsten Bögershausen wrote:

> 
> 
> On 06/19/2018 08:22 PM, Eric Sunshine wrote:
> > On Tue, Jun 19, 2018 at 2:06 PM Junio C Hamano <gitster@pobox.com> wrote:
> > > Torsten Bögershausen <tboegi@web.de> writes:
> > > > t5562 fails here under MacOS:
> > > > "gzip -k"  is not portable.
> > Very odd. Stock /usr/bin/gzip on my MacOS 10.12.6 _does_ recognize -k,
> > and the test does pass.
> 
> This is the test box running Mac OS X 10.6 speaking.
> The -c seems to need even -f.
> But this doesn't work either:
> 
> gzip 1.3.12
> Copyright (C) 2007 Free Software Foundation, Inc.
> Copyright (C) 1993 Jean-loup Gailly.
> This is free software.  You may redistribute copies of it under the terms of
> the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
> There is NO WARRANTY, to the extent permitted by law.

Ah, that's it. "-k" came about in gzip v1.6. That's 5 years old, but
obviously some people are still running it.

"-c" goes back quite a while and should be safe, I think.

> expecting success:
>     gzip -f -c fetch_body >fetch_body.gz &&
>     test_copy_bytes 10 <fetch_body.gz >fetch_body.gz.trunc &&
>     gzip -f -c push_body >push_body,gz &&
>     test_copy_bytes 10 <push_body.gz >push_body.gz.trunc
> 
> ./test-lib.sh: line 632: push_body.gz: No such file or directory

Typo in the ">" redirect (comma instead of period)?

-Peff