Output sccache stats as a notice and a summary table

[orf]

Checking the effectiveness of sccache when using this action is a bit annoying: the post action is minimized, and you need to go into each individual job.

This PR adds high-level cache hits/misses/errors as a notice (available at the top of the job summary), and a more detailed table as a job summary.

[sylvestre]

Great idea btw

[orf]

Thanks! I’ve integrated the branch with the project I was working on, you can see some builds with more realistic numbers there: https://github.com/orf/pyvector

It all seems to work pretty well.

[sylvestre]

could you please rebase it? thanks

[sylvestre]

also, where can I see it on pyvector ?

[orf]

Rebased! You can see it in the actions tab. For example: https://github.com/orf/pyvector/actions/runs/9051168104

[sylvestre]

nice :) Maybe add % too ? (should not be too hard math ;)

[orf]

Good idea, done! I’ve triggered a build here to see what it looks like: https://github.com/orf/pyvector/actions/runs/9053826212

I don’t have much more time to work on this though, so lemme know if there is anything else you think I should change or add

[sylvestre]

Just one request: Could you please add a the % again ? (in the right column) thanks

[orf]

Done!

[sylvestre]

sorry, i forgot to merge it :)