Re: [PATCH] p3400: stop using tac(1)

> On Tue, Oct 05, 2021 at 08:45:38PM +0200, René Scharfe wrote:
>
>> Am 04.10.21 um 10:31 schrieb Jeff King:
>>> On Sat, Oct 02, 2021 at 07:44:14PM +0200, René Scharfe wrote:
>>>
>>>> b3dfeebb92 (rebase: avoid computing unnecessary patch IDs, 2016-07-29)
>>>> added a perf test that calls tac(1) from GNU core utilities.  Support
>>>> systems without it by reversing the generated list using sort -nr
>>>> instead.  sort(1) with options -n and -r is already used in other tests.
>>>
>>> Cute fix. With regular seq(1), this whole thing can become:
>>>
>>>   seq 1000 -1 1
>>>
>>> without the extra process, but our test_seq doesn't understand non-1
>>> increments (nor comparisons besides -le). It wouldn't be that hard to
>>> teach it, but given that this is the first time we've wanted it, it may
>>> not be worth the effort.
>>
>> Right.  The original also allows "seq 1000 1", by the way.  Not sure we
>> need that either.
>
> I'm not sure what you mean by "original" here. "seq 1000 1" produces no
> output for me (nor does it work with test_seq).