simplify CI script

.gitlab-ci.yml

@@ -10,25 +10,7 @@ build-ws:
   stage: build
   script:
     - apt-get update
-    - apt-get install -y ros-melodic-libfranka python-catkin-tools libeigen3-dev 
-    - apt-get install -y build-essential
-    - apt-get install -y gcc
-    - apt-get install -y make
-    - apt-get install -y cmake
-    - apt-get install -y libssl-dev
-    - echo "source /opt/ros/melodic/setup.bash" >> ~/.bashrc
-    - source ~/.bashrc
+    - apt-get install -y ros-melodic-libfranka python-catkin-tools libeigen3-dev build-essential cmake libssl-dev
+    - source /opt/ros/melodic/setup.bash
     - rosdep install -y --from-paths .
-    - git clone https://github.com/eclipse/paho.mqtt.c.git
-    - cd paho.mqtt.c
-    - git checkout v1.3.1
-    - cmake -Bbuild -H. -DPAHO_WITH_SSL=ON -DPAHO_ENABLE_TESTING=OFF
-    - cmake --build build/ --target install
-    - ldconfig
-    - cd ..
-    - git clone https://github.com/eclipse/paho.mqtt.cpp
-    - cd paho.mqtt.cpp
-    - cmake -Bbuild -H. -DPAHO_BUILD_DOCUMENTATION=FALSE -DPAHO_BUILD_SAMPLES=FALSE -DPAHO_BUILD_SAMPLES=FALSE
-    - cmake --build build/ --target install
-    - ldconfig
     - catkin build