pr.yaml

name: PR
on: pull_request

# Using 16MB stacks for deep test/debug recursion
env:
  RUST_MIN_STACK: 16777216

jobs:

  check:
    name: Check (1.63.0)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@1.63.0
      - run: cp ci/compat-Cargo.lock ./Cargo.lock
      - run: cargo check --verbose --locked

  test:
    name: Test (stable)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - run: cargo build --verbose
      - run: cargo test --verbose --package rayon
      - run: cargo test --verbose --package rayon-core
      - run: ./ci/highlander.sh

  fmt:
    name: Format
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@1.72.1
        with:
          components: rustfmt
      - run: cargo fmt --all --check

  # One job that "summarizes" the success state of this pipeline. This can then be added to branch
  # protection, rather than having to add each job separately.
  success:
    name: Success
    runs-on: ubuntu-latest
    needs: [check, test, fmt]
    # Github branch protection is exceedingly silly and treats "jobs skipped because a dependency
    # failed" as success. So we have to do some contortions to ensure the job fails if any of its
    # dependencies fails.
    if: always() # make sure this is never "skipped"
    steps:
      # Manually check the status of all dependencies. `if: failure()` does not work.
      - name: check if any dependency failed
        run: jq --exit-status 'all(.result == "success")' <<< '${{ toJson(needs) }}'