Re: [PATCH v2 09/11] archive tests: use a cheaper "zipinfo -h" invocation to get header

On Sat, Jan 16, 2021 at 04:35:52PM +0100, Ævar Arnfjörð Bjarmason wrote:

Change an invocation of zipinfo added in 19ee29401d (t5004: test ZIP
archives with many entries, 2015-08-22) to simply ask zipinfo for the
header info, rather than spewing out info about the entire archive and
race to kill it with SIGPIPE due to the downstream "head -2".

I ran across this because I'm adding a "set -o pipefail" test
mode. This won't be needed for the version of the mode that I'm
introducing (which currently relies on a patch to GNU bash), but I
think this is a good idea anyway.

Makes sense. The only risk here would be that "-h" is not portable. But
I don't have any reason to think that's the case, and since it's just a
test, I'm fine with proceeding and seeing if anybody screams.

-Peff