ci.yaml

name: "Rust CI"
on:
  pull_request:
    paths:
      - "crates/**"
      - "Cargo.toml"
      - ".github/workflows/ci.yaml"

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: "always"
  CARGO_INCREMENTAL: "0"
  RUSTC_WRAPPER: "sccache"
  SCCACHE_GHA_ENABLED: "true"
  # Rust version to use.
  nightly: nightly-2024-08-01

jobs:
  build:
    name: CI
    strategy:
      matrix:
        # Needs big runners to run tests
        # Only macos-13-xlarge is Apple Silicon, as per:
        # https://docs.github.com/en/actions/using-github-hosted-runners/about-larger-runners/about-larger-runners#about-macos-larger-runners
        os: [ubuntu-22.04-github-hosted-16core, macos-13-xlarge]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: ${{ env.nightly }}
          components: rustfmt, clippy
          # Remove default `-D warnings`. This is a temporary measure.
          rustflags: ""

      - name: Install sccache
        uses: mozilla-actions/sccache-action@v0.0.4

      - name: Format
        run: cargo fmt --all -- --check

      - name: Install nextest
        run: cargo install cargo-nextest

      - name: Run tests
        run: cargo nextest run --no-fail-fast

  build_stable:
    name: Build (stable)
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: stable
          # Remove default `-D warnings`. This is a temporary measure.
          rustflags: ""

      - name: Install sccache
        uses: mozilla-actions/sccache-action@v0.0.4

      # Bellman crate *must* build on stable, because parts of the core
      # codebase are only used in the context of stable compiler.
      - name: Build
        run: |
          cargo build -p bellman