Summary:
After merging https://github.com/facebook/facebook-clang-plugins/pull/20, we can now use Actions here to download a facebook-clang custom clang Release here and use it to build C Analyzers during CI, as well as Java Analyzers.
1. had to change `matrix.os: macos-latest` to `matrix.os: macOS-latest`. I guess that's what I typed for the fb clang build, and `curl`ing a Release asset is case-sensitive.
2. Add `jq` to installed packages on mac - we need it for parsing GitHub's API responses
3. Add the logic for fetching a release asset (we currently only look for the `"latest"` release) and downloading the properly-named clang based on OS. Then unpack it and update the `opam` files so we build with clang.
Note: I would have used this Action: https://github.com/dsaltares/fetch-gh-release-asset/ for fetching a Release asset, but unfortunately it seems to be in a fairly new state and it's a Docker Action, which means it doesn't support macOS. The logic in the fetch clang step is roughly based off of this action's logic.
Pull Request resolved: https://github.com/facebook/infer/pull/1286
Reviewed By: da319
Differential Revision: D22475973
Pulled By: jvillard
fbshipit-source-id: cb95b51b9
Amar Paul
bb5a349c26