Conditional includes of launch files are not displayed

[matthiashh]

First of all thanks for the work put into this tool.

One thing I found missing is a visualization of conditions. For example in

  <!-- Gazebo  -->
  <include if="$(arg sim)" file="$(find bh_gazebo)/launch/gazebo.launch">
      <arg name="world" value="$(arg world)"/>
      <arg name="robot_name" value="dual_arm"/>
      <arg name="gui" value="$(arg gui)"/>
  </include>

the condition if="$(arg sim)" is not rendered in the GUI, but quite important when trying to understand launch files.

[pschillinger]

Unfortunately, this might not be straightforward. The implementation relies on the standard parsing by roslaunch to ensure that both tools always show the same behavior.

However, if you let roslaunch parse a file with conditions, it will immediately resolve them internally, i.e., a tag of which the condition is not true will not be reported at all. So far, I did not see a way how to do it without parsing the files independently from roslaunch.

I am happy to add the function if there is a way how to do this by using roslaunch.

[matthiashh]

I think I misunderstood how the tool works. When I wrote the issue I thought it just ignores the conditions, but it actually honors them and will just display what it actually includes.

So what I brought up is more of a wish list thing to better fully understand how a launch file is structured.