[LTP] [RFC PATCH v7 05/11] lib/test_net.sh: tst_rhost_run: Add testcases/bin into PATH for SSH/RSH

Petr Vorel pvorel@suse.cz
Tue Jul 25 16:28:27 CEST 2017

Hi Alexey,
> > +	local newpath="$LTPROOT/testcases/bin"

> Why setting the PATH, LTPROOT can't be done before test run on remote
> host? what if LTPROOT differs b/w machines?

You're right, that setting correct PATH is required by doc [1], so I'll drop this patch
from v8.

But PATH is set in several local scripts, the same is for LTPROOT (see `git grep
LTPROOT=' and `git grep PATH=.*LTPROOT.*testcases/bin'), including our
testscripts/network.sh, so for localhost is not really required. I'd like to have it for
remote host as well.

But of course the whole problem is how to detect correct LTPROOT for remote. I used the
same as I had an idea, that ltp should be installed into same path for lhost and rhost,
but I'm wrong.

BTW this is IMHO better way how to set LTPROOT:
# /opt/ltp/testscripts/network.sh
export LTPROOT="${LTPROOT:-$(cd $(dirname $0)/../testcases/bin; pwd)}"

# /opt/ltp/testcases/bin/test_net.sh
export LTPROOT="${LTPROOT:-$(cd $(dirname $0); pwd)}"

> >  	if [ -n "${TST_USE_SSH:-}" ]; then
> > -		output=`ssh -n -q $user@$RHOST "sh -c \
> > -			'$pre_cmd $cmd $post_cmd'" $out 2>&1 || echo 'RTERR'`
> > +		output=`ssh -n -q $user@$RHOST "PATH=$newpath:\$PATH \
> > +			sh -c '$pre_cmd $cmd $post_cmd'" $out 2>&1 || echo 'RTERR'`

> $PATH still expands on local machine with backticks

> echo `echo "\$PATH"` vs echo `echo "\\$PATH"`

> or better use POSIX $(...)

> echo $(echo "\$PATH")
Oh, you're right.

Kind regards,

[1]: https://github.com/linux-test-project/ltp/tree/master/testcases/network#ltp-setup

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