[igoutta]

Summary

Since you asked for that fix, I did the closest thing.

Classification & Testing (check all that apply and add your own)

• Checked by a human programmer
• Non-functional change
• No-binary change
• Infrastructure change (e.g. unit tests, helper scripts)
• Automated test(s) verify changes (e.g. unit test, autotest)
• Tested manually, description below (e.g. SITL)
• Tested on hardware
• Logs attached
• Logs available on request

Description

apt-key adv was removed in Ubuntu 24.04, so the current script fails on
every modern release. This rewrite:

• Uses the modern signed-by keyring for packages.ros.org
• Drops ROS 1 / focal (EOL; ardupilot_ros is ROS 2 only)
• Picks ROS 2 distro from codename: jammy→humble, noble→jazzy,
  plucky→kilted, questing/resolute→rolling; -r DISTRO overrides
• Same CLI shape as install-prereqs-{ubuntu,arch}.sh (-y -q -s -r),
  SUDO array (sudo/doas/run0), refuses to run under sudo
• geographiclib script in mktemp, deleted after
• rosdep init only when uninitialized (was || true)
• colcon build instead of catkin
• Guarded tput (no crash in CI)
• No trailing source ~/.bashrc (no-op for parent shell)

Not yet run. bash -n clean. shellcheck not available locally.