Feature/ci pio (#1)

[atticusrussell]

A good place to start with CI for PlatformIO builds.
Implements #36

• build calibration

• parse firmware/platformio.ini with a python script to get configurations

• build each firmware configuration in parallel to reduce run time from 40 min to ~7

[atticusrussell]

@grassjelly what would the procedure be to get this merged?

I would love to continue making more PRs and improvements to this repo, but would want this basic CI system in place to test them.

Some of my ideas for subsequent PRs would be:

1. Moving the "Galactic" branch to "Rolling" and deprecate branches that don't compile as mentioned in [feature] ROS2 Rolling main, backports #33.
2. Expand the CI system to test PlatformIO firmware compilation on a matrix of ROS distros.
3. Devise a system for backporting to older distros from Rolling and troubleshoot issues with each distro from there, such as firmware error #35 that would be relatively simple to solve.
4. Evaluate existing PRs that aim to add functionality, such as ESP32 port, wifi transport, magnetometer, ultrasonic and battery #31, and thoroughly test them. (in the case of that large PR, maybe proposing that each new feature be in a separate PR that can be carefully evaluated).

[atticusrussell]

@grassjelly you mentioned in #37 that you left a comment here and I wanted to let you know that I can't see any comment, but didn't want to leave more unrelated comments in that issue. Not sure what's going wrong.

[grassjelly]

hey @atticusrussell sorry for the late reply and thanks for the PR. The changes looks good to me, however for the sake of other contributors in the future, could you add comments on the steps. Just briefly add notes and what it does.

[atticusrussell]

hey @atticusrussell sorry for the late reply and thanks for the PR. The changes looks good to me, however for the sake of other contributors in the future, could you add comments on the steps. Just briefly add notes and what it does.

@grassjelly Thanks for the feedback. I added comments to the files. Let me know if there's any additional changes you'd like to see.

[grassjelly]

thanks @atticusrussell