Pawel Wodkowski f751ea1723 autotest_common.sh: enable trace flag only if it was anabled before
We are too verbose in many places. Some scripts don't want to be traced
all the way, instad they enable tracing only for some parts and
autotest_common.sh just do 'set -x' in many places.

This patch save 'x' flag on function enter and restore it at exit.

Change-Id: I39b3d3dd3f711e1131e476f9d322d9e1b097ad12
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/432604
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-12-05 00:35:35 +00:00
..
2018-12-03 19:50:15 +00:00
2018-12-04 17:13:29 +00:00