Thomas Munro <[email protected]> writes:
> On Sun, Mar 29, 2026 at 11:37 AM Tom Lane <[email protected]> wrote:
>> It looks like to make this test stable on modern FreeBSD,
>> we need to see if tar accepts --no-read-sparse and use that
>> switch if so.
> Yeah. Here's my attempt at perl.
Andrew might have some stylistic suggestions, but this looks
plausible to me.
> I think your Mac probably has a similar tar program BTW... but apfs
> probably doesn't go around making holes visible to lseek()
> automatically or at least as eagerly as my ZFS system.
Interesting ... on my Tahoe laptop, I see
$ tar --version
bsdtar 3.5.3 - libarchive 3.7.4 zlib/1.2.12 liblzma/5.4.3 bz2lib/1.0.8
There is nothing in "tar --help" about sparse files, but
experimentation shows that it accepts --[no-]read-sparse.
Can't easily tell if the switch actually does anything.
regards, tom lane
