add github action docs file

[aviramha]

No description provided.

[sylvestre]

@jakelee8 what do you think about this ?

[codecov-commenter]

Codecov Report

Base: 23.72% // Head: 23.16% // Decreases project coverage by -0.55% ⚠️

Coverage data is based on head (def9f0f) compared to base (b7caab4).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1454      +/-   ##
==========================================
- Coverage   23.72%   23.16%   -0.56%     
==========================================
  Files          48       49       +1     
  Lines       22336    22409      +73     
  Branches    10222    10260      +38     
==========================================
- Hits         5300     5192     -108     
- Misses      11402    11576     +174     
- Partials     5634     5641       +7     

Impacted Files	Coverage Δ
src/jobserver.rs	47.91% <0.00%> (-4.17%)	⬇️
src/cache/disk.rs	35.61% <0.00%> (-2.74%)	⬇️
src/util.rs	33.75% <0.00%> (-2.50%)	⬇️
src/azure/blobstore.rs	21.05% <0.00%> (-2.11%)	⬇️
src/cache/cache.rs	36.82% <0.00%> (-1.98%)	⬇️
src/compiler/args.rs	60.31% <0.00%> (-1.77%)	⬇️
src/compiler/gcc.rs	54.49% <0.00%> (-1.52%)	⬇️
src/mock_command.rs	50.93% <0.00%> (-1.50%)	⬇️
src/lib.rs	9.69% <0.00%> (-0.99%)	⬇️
src/compiler/c.rs	38.24% <0.00%> (-0.98%)	⬇️
... and 20 more

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[jakelee8]

I would consider sccache a "trusted" component in the software supply chain and recommend against using 3rd-party GitHub Actions in official sccache documentation. That said, @metalbear-co/sccache-action is still a work in progress.

For a more complete example of using GHA sccache with Cargo, including cross-platform support, see https://github.com/BitskiCo/rust-sdk/blob/main/bin/cargo

[sylvestre]

Sorry but I am not confortable recommending this
Could you please remove this?

[sylvestre]

or if you are interested, we could discuss about moving the action under the Mozilla umbrella

[drahnr]

I was about suggest that, and invest a few hours into vetting and polishing so we can endorse something that's easier to use compared to a DIY manual.

[sylvestre]

Maybe something like:

Suggested change

	Just add this step to your workflow:
	To integrate this into your workflow, you can see how it is done in this script:
	https://github.com/BitskiCo/rust-sdk/blob/main/bin/cargo

[aviramha]

Answering all replies in one spot:

• I understand the concern for recommending a 3rd party in the official docs, though I think that many other official projects do so, sometimes with a disclaimer - it is ofc entirely up to the maintainer team so I can't really say anything besides that.
• Moving the action to the Mozilla umbrella - the current repo can be forked as it's MIT though I'm not sure I want to be bound by the Mozilla umbrella (not sure what are the implications)
• I am ofc biased, and don't want to push my biased opinion into the project. I'll close the PR and let you decide how you want to document it and share it.