[RFC]: Setup automation for cleaning up obsolete test coverage reports

[Planeshifter]

Task is to implement an automated cleanup process for test coverage reports to handle deleted, renamed, or deprecated packages and files.

We can implement a weekly automated GitHub actions workflow in the test coverage repository that:

• Retrieves the current state from the main repository:

  • List of all packages
  • Files inside each package (EDIT: Files are not independently represented in the coverage repo; if a file has changed the updated coverage report in the coverage repo will already omit. For this workflow, we thus will only need to look at package directories)

We can compare this against the coverage repository state to identify:

• Deleted/renamed packages
• Deleted/renamed files within packages

If any files should be removed, the workflow should create a Pull Request that removes the outdated coverage data.

Time estimate without AI: 4h.
Time estimate with AI: 3h.

[Planeshifter]

PR-URL: stdlib-js/www-test-code-coverage#5

Loom recordings:

https://www.loom.com/share/fa1d69bd2ab84489998bb531da33e9c3?sid=61ff77ec-18f8-4a53-bd19-d065602b9317
https://www.loom.com/share/1664fbd56fd641d6801b5b062b807fae?sid=36107f6e-63f3-4177-ae4b-84bcfd6f8ca9
https://www.loom.com/share/1664fbd56fd641d6801b5b062b807fae?sid=788c7a21-73f2-4a42-bb3c-994d5900c5b0

Time to completion: 1h 49min

Notes: After considering various approaches for how to accomplish this and where this workflow should live, I decided to go with a simple Bash script and have it be placed in the coverage repository at https://github.com/stdlib-js/www-test-code-coverage. AI completion certainly would have helped me during the process of writing the needed code. My initial time estimate for this task was likely overly conservative.