ros2 node list doesn't include node namespace

[dhood]

Requires ros2/rmw#142

I first noticed this running a node with a remapped namespace, but it also happens if I hard-code a namespace. It happens:

• hard-coded or using static remapping
• if the node uses rclcpp or rclpy
• for a daemon using connext, fastrtps, or opensplice.

E.g.:

$ ros2 run demo_nodes_cpp talker  # (modified to use hard-coded namespace)
[INFO] [my_ns.talker]: Publishing: 'Hello World: 1'

$ ros2 node list
talker

I would consider this a bug because I expected the output to include the node's namespace, unless we are aware that this is not supported?

[sloretz]

just noting ROS 1 includes the namespace

$ rosnode list
/gazebo
/gazebo_gui
/iris/joy_node
/iris/robot_state_publisher
/iris/roll_pitch_yawrate_thrust_controller_node
/iris/rotors_joy_interface
/rosout

[dhood]

I think this has just never been supported. In Ardent it also didn't expand. I will re-classify this as an enhancement.

[dirk-thomas]

The underlying API doesn't provide the namespace so the command line tools can't show them atm. This needs to be addressed in ros2/rmw#142 first.