Figure out build pipeline

[andrewpareles]

I'm actively working on a few items related to building and publishing on Mac, but could do with some help. If you can figure out any of the following, please get in touch!

• Which yml files are relevant to building and signing a Mac app? E.g. how does product-build-darwin.yml differ from product-build-darwin-universal.yml? Mapping out the hierarchy/order used would be useful.

• Is product-build.yml the single entry point to the azure pipeline?

• What are the exact files/scripts that run when you execute npm run gulp vscode-darwin-arm64?

• How do the yml files interact with the gulp scripts (if at all)?

• When are out, out-build, and out-vscode created and when are they used?

These are a lot of questions, but if you have an answer to any one of them let me know!