ci.yaml

on:
  push:
    branches:
      - "**"
  pull_request:
  merge_group:
  workflow_dispatch:
  workflow_call:

name: Continuous integration

env:
  CARGO_TERM_COLOR: always
  HOST: x86_64-unknown-linux-gnu
  FEATURES: "test docs"
  # RUSTFLAGS: "-D warnings" # For now, we don't mind a couple warnings

jobs:
  clippy:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        rust:
          - beta
    name: clippy/${{ matrix.rust }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          components: clippy
      - uses: Swatinem/rust-cache@v2
      - run: cargo clippy --features docs

  format:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        rust:
          - nightly
    name: format/${{ matrix.rust }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          components: rustfmt
      - run: cargo fmt --all --check

  tests:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        rust:
          - stable
          - beta
          - nightly
          - 1.63.0  # MSRV

    name: tests/${{ matrix.rust }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
      - uses: Swatinem/rust-cache@v2
      - name: Install openblas
        run: sudo apt-get install libopenblas-dev gfortran
      - run: ./scripts/all-tests.sh "$FEATURES" ${{ matrix.rust }}

  cross_test:
    if: ${{ github.event_name == 'merge_group' }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        include:
          - rust: stable
            target: s390x-unknown-linux-gnu
          - rust: stable
            target: i686-unknown-linux-gnu

    name: cross_test/${{ matrix.target }}/${{ matrix.rust }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: ${{ matrix.target }}
      - uses: Swatinem/rust-cache@v2
      - name: Install cross
        run: cargo install cross
      - run: ./scripts/cross-tests.sh "docs" ${{ matrix.rust }} ${{ matrix.target }}

  cargo-careful:
    if: ${{ github.event_name == 'merge_group' }}
    runs-on: ubuntu-latest
    name: cargo-careful
    strategy:
      fail-fast: false
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: nightly
      - uses: Swatinem/rust-cache@v2
      - name: Install cargo-careful
        run: cargo install cargo-careful
      - run: cargo careful test -Zcareful-sanitizer --features="$FEATURES"
      - run: cargo careful test -Zcareful-sanitizer -p ndarray-rand

  docs:
    if: ${{ github.event_name == 'merge_group' }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        rust:
          - stable
    name: docs/${{ matrix.rust }}
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
      - run: cargo doc

  conclusion:
    needs:
      - clippy
      # - format  # should format be required?
      - tests
      - cross_test
      - cargo-careful
      - docs
    if: always()
    strategy:
      fail-fast: false
    runs-on: ubuntu-latest
    steps:
      - name: Result
        run: |
          jq -C <<< "${needs}"
          # Check if all needs were successful or skipped.
          "$(jq -r 'all(.result as $result | (["success", "skipped"] | contains([$result])))' <<< "${needs}")"
        env:
          needs: ${{ toJson(needs) }}