Re: [Libguestfs] [nbdkit] Two POSIX questions for you ...

On 10/9/23 16:51, Richard W.M. Jones wrote: > > So one thing we could do for this test is to require (for the test) > that /bin/sh is bash, something like the patch below. I was only able > to test this in the positive case. > > diff --git a/tests/test-log-script-info.sh b/tests/test-log-script-info.sh > index fa9b2ed32..d65f6415d 100755 > --- a/tests/test-log-script-info.sh > +++ b/tests/test-log-script-info.sh > @@ -38,6 +38,10 @@ requires_run > requires_nbdinfo > requires_filter log > > +# This test implicitly assumes /bin/sh is bash, see: > +# https://listman.redhat.com/archives/libguestfs/2023-October/032767.html > +BASH_VERSION=no requires /bin/sh -c 'test "x$BASH_VERSION" != "xno"' > + > if ! nbdinfo --help | grep -- --map ; then > echo "$0: nbdinfo --map option required to run this test" > exit 77 > > Clever! Reviewed-by: Laszlo Ersek <lersek(a)redhat.com&gt; You can test it with "dash" BTW (it must be available in Fedora, because it is available in EPEL-9): BASH_VERSION=no /bin/bash -c 'test "x$BASH_VERSION" != "xno"; echo $?' BASH_VERSION=no /bin/dash -c 'test "x$BASH_VERSION" != "xno"; echo $?'