ros2 / ros2/launch

Equivalent inspection options for ROS Launch files (`--dump-params`, `--nodes` and `--args`)

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help wanted
Dominant language
Python
Stars
155
Forks
182
Avg merge
2d 14h
Merged PRs (30d)
6

Description

Feature request

Feature description

In ROS1, the roslaunch provides a set of options (--dump-params, --nodes and --args) to inspect what's parameters and command lines that ROSLaunch eventually invoke. This is really useful for downstream tool to synthesize the ROS composition for debugging purpose. For example, vscode-ros extension is utilizing it to implement the ROSLaunch debugging feature, which is one of the mostly used functions.

It would be nice to see ROS 2 launch CLI can offer the similar experience, so the downstream tool can do the similar integration for ROS 2.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the ROS 2 launch CLI and comparing its inspection capabilities with the ROS1 roslaunch options --dump-params, --nodes and --args. Done means defining and implementing equivalent inspection behavior that downstream tools can use to synthesize ROS composition for debugging.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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