CI: trying to catch the roslaunch errors

.gitlab-ci.yml

@@ -145,7 +145,11 @@ stages:
   - catkin_make
   - roscd wolf_demo_laser2d/bag
   - wget https://gitlab.iri.upc.edu/mobile_robotics/wolf_projects/wolf_ros/demos/demo_rosbags/-/raw/master/laser2d/advanced.bag
-  - roslaunch wolf_demo_laser2d demo_laser2d.launch rviz:=false bag:=advanced.bag
+  - roslaunch_output=$( roslaunch wolf_demo_laser2d demo_laser2d.launch rviz:=false bag:=advanced.bag 2>&1 | tee /dev/tty )
+  - if [[ "$roslaunch_output" == *"process has finished cleanly"* ]]; then
+  -   echo "=============\rROSLAUNCH FINISHED WITHOUT ANY PROBLEM!\r=================";
+  - else
+  -   return 1  
 
 ############ UBUNTU 16.04 TEST ############
 demo:xenial: