update dockerfile

Dockerfile

@@ -1,5 +1,4 @@
 FROM ros:humble
-SHELL ["/bin/bash", "-c"]
 
 # FROM dustynv/ros:humble-pytorch-l4t-r35.3.1 # when using pytorch (image is larger though)
 
@@ -11,7 +10,7 @@ RUN apt-get update && apt-get install -y git vim
 
 #WORKDIR /opt/root_ws
 
-#RUN source /opt/ros/humble/install/setup.sh && colcon build --symlink-install --packages-select robomaster_msgs freyja_msgs state_manager lqg_control robomaster_handler sensing_msgs control waypoint_manager
+#RUN . /opt/ros/humble/install/setup.sh && colcon build --symlink-install --packages-select robomaster_msgs freyja_msgs state_manager lqg_control robomaster_handler sensing_msgs control waypoint_manager
 
 #COPY cyclone_dds_profile.xml /opt/robomaster
 
@@ -35,7 +34,7 @@ RUN sudo apt install -y ros-humble-interactive-markers
 # Build part II project
 RUN apt-get update && yes | apt-get install libboost-all-dev
 RUN cd /opt/root_ws \
-    && source ros_entrypoint.sh \
+    && . ros_entrypoint.sh \
     && git clone https://github.com/jyjblrd/part_II_project \
     && cd part_II_project \
     && git config --global --add safe.directory /opt/root_ws/part_II_project \