rust.yml

name: Rust

on:
  push:
    branches: [ "master" ]
  pull_request:
    branches: [ "master" ]

permissions:
  contents: read

# a new push to a pull request makes the run in progress redundant
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

env:
  CARGO_TERM_COLOR: always

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        os:
          - ubuntu-latest
          - macos-latest
          - windows-latest
    runs-on: ${{ matrix.os }}
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
    - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
    - name: Check formatting
      run: cargo fmt --all --check
    - name: Build
      run: cargo check --workspace --locked --all-targets
    - name: Run tests
      run: cargo test --workspace --locked --release

  lint:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
    - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
    - name: Run clippy
      run: cargo clippy --workspace --locked --all-targets -- -D warnings

  # the release profile turns off the overflow checks and debug assertions, so
  # the tests are run once more without it
  test-debug:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
    - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
    - name: Run tests
      run: cargo test --workspace --locked

  # the tests and clippy again with the pair term on the seeded rank 8 table,
  # in debug so the state check runs
  test-machine:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
    - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
    - name: Run tests with the pair term on
      run: cargo test --workspace --locked --features machine-test
    - name: Run clippy with the pair term on
      run: cargo clippy --workspace --locked --all-targets --features machine-test -- -D warnings

  # .cargo/config.toml builds for x86-64-v2, so every x86 job above runs the
  # quiet ordering's SSE forms; this runs the tests on the scalar forms the
  # baseline archive ships, where a fault in them would otherwise show only
  # on the arm build
  test-baseline:
    runs-on: ubuntu-latest
    env:
      RUSTFLAGS: -C target-cpu=x86-64
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
    - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
    - name: Run tests on the baseline target
      run: cargo test --workspace --locked --release

  # The tactical and the strategic suites, gating, on one platform: a fixed
  # depth and table make their totals exact on any machine, and twenty seconds
  # or more of searching is not worth paying three times over a matrix that
  # would agree with itself. They are ignored in the default run and asked
  # for by name, a step each, and the second runs whether or not the first
  # passed.
  #
  # cargo test exits 0 when the name filter matches nothing, so a renamed or
  # moved test would keep this green having run nothing. Each step therefore
  # ends in a grep for the line saying its test ran and passed. grep ends the
  # pipeline, so its status is the step's under the default shell (bash -e
  # without pipefail), and tee keeps the output in the log.
  tactics:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
    - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
    - name: Run the tactical suite
      run: cargo test --release --locked -p arche-core -- --ignored the_suite_finds_what_it_found_before --nocapture | tee /dev/stderr | grep -qxF "test tactics::tests::the_suite_finds_what_it_found_before ... ok"
    - name: Run the strategic suite
      if: ${{ !cancelled() }}
      run: cargo test --release --locked -p arche-core -- --ignored the_strategy_suite_scores_what_it_scored_before --nocapture | tee /dev/stderr | grep -qxF "test strategy::tests::the_strategy_suite_scores_what_it_scored_before ... ok"
  # checks that the rust-version in the manifests is still true
  minimum-supported-rust-version:
    runs-on: ubuntu-latest
    env:
      # takes precedence over rust-toolchain.toml
      RUSTUP_TOOLCHAIN: "1.85"
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
    # the ref names the toolchain to install, not a version of the action, so
    # a bump would move this job off the version it exists to check.
    # .github/dependabot.yml keeps it out of the bumps.
    - uses: dtolnay/rust-toolchain@85c23e28f7ccc75a9a153d45d385d94a85464876 # 1.85
    - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
    - name: Check the workspace
      run: cargo check --workspace --locked --all-targets