Filter Bags

[contagon]

This PR adds a (destructive) command to remove all data from downloaded rosbags that aren't the required IMU or LiDAR data. This greatly reduces storage size (by 50% for newer college)!

I'm on the fence about the command name. I considered filter, clean, or prune, but felt that filter best represents what is happening here.

[Copilot]

Pull Request Overview

Adds a destructive CLI command to strip non-IMU/LiDAR data from ROS1 and ROS2 bags, reducing storage size by ~50%.

• Implements filter_ros1 and filter_ros2 helper functions to rewrite bags with only the specified topics.
• Adds a filter command in dataset_manager.py, wiring up topic-based filtering for downloaded datasets.
• Bumps rosbags dependency to >=0.10.10 in pyproject.toml.

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 3 comments.

File	Description
python/evalio/cli/dataset_manager.py	New filter command, plus filter_ros1 and filter_ros2 functions for topic-based bag rewriting.
pyproject.toml	Updated rosbags dependency to >=0.10.10 for required bugfixes.

Comments suppressed due to low confidence (2)

python/evalio/cli/dataset_manager.py:191

• [nitpick] Naming this function filter shadows the built-in filter; consider renaming to avoid confusion (e.g., filter_bags).

def filter(

python/evalio/cli/dataset_manager.py:190

• No tests have been added for the new filter command; consider adding unit or integration tests to verify destructive behavior and error paths.

@app.command(no_args_is_help=True)