name: keccak

on:
  pull_request:
    paths:
      - ".github/workflows/keccak.yml"
      - "keccak/**"
      - "Cargo.*"
  push:
    branches: master

defaults:
  run:
    working-directory: keccak

env:
  RUSTFLAGS: "-Dwarnings"
  CARGO_INCREMENTAL: 0

jobs:
  set-msrv:
    uses: RustCrypto/actions/.github/workflows/set-msrv.yml@master
    with:
      msrv: 1.85.0

  build:
    needs: set-msrv
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust:
          - ${{needs.set-msrv.outputs.msrv}}
          - stable
        target:
          - thumbv7em-none-eabi
          - wasm32-unknown-unknown
    steps:
      - uses: actions/checkout@v4
      - uses: RustCrypto/actions/cargo-cache@master
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: ${{ matrix.target }}
      - run: cargo build --target ${{ matrix.target }}
      - run: cargo build --target ${{ matrix.target }} --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="soft"'
        run: cargo build --target ${{ matrix.target }}

  minimal-versions:
    uses: RustCrypto/actions/.github/workflows/minimal-versions.yml@master
    with:
      working-directory: ${{ github.workflow }}

  test:
    needs: set-msrv
    strategy:
      matrix:
        include:
          # AMD64 Linux
          - target: x86_64-unknown-linux-gnu
            platform: ubuntu-latest
            rust: ${{needs.set-msrv.outputs.msrv}}
          - target: x86_64-unknown-linux-gnu
            platform: ubuntu-latest
            rust: stable
          # ARM64 macOS
          - target: aarch64-apple-darwin
            platform: macos-latest
            rust: ${{needs.set-msrv.outputs.msrv}}
          - target: aarch64-apple-darwin
            platform: macos-latest
            rust: stable
    runs-on: ${{ matrix.platform }}
    steps:
      - uses: actions/checkout@v4
      - uses: RustCrypto/actions/cargo-cache@master
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: ${{ matrix.target }}
      - run: cargo check --target ${{ matrix.target }}
      - run: cargo test --target ${{ matrix.target }}
      - run: cargo test --target ${{ matrix.target }} --features parallel
      - run: cargo test --release --target ${{ matrix.target }} --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_soft_compact'
        run: cargo test --release --target ${{ matrix.target }}
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="soft"'
        run: cargo test --release --target ${{ matrix.target }}
      - if: contains(matrix.target, 'aarch64')
        env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="aarch64_sha3"'
        run: cargo test --release --target ${{ matrix.target }}

  test-simd:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: RustCrypto/actions/cargo-cache@master
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: nightly
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="simd128"'
        run: cargo test --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="simd256"'
        run: cargo test --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="simd512"'
        run: cargo test --features parallel

  test-miri:
    runs-on: ubuntu-latest
    env:
      MIRIFLAGS: "-Zmiri-symbolic-alignment-check -Zmiri-strict-provenance"
    strategy:
      matrix:
        target:
          - x86_64-unknown-linux-gnu
          - s390x-unknown-linux-gnu
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: nightly
          components: miri
      - run: cargo miri setup
      - run: cargo miri test --target ${{ matrix.target }}
      - run: cargo miri test --target ${{ matrix.target }} --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_soft_compact'
        run: cargo miri test --release --target ${{ matrix.target }} --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="simd128"'
        run: cargo miri test --release --target ${{ matrix.target }} --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="simd256"'
        run: cargo miri test --release --target ${{ matrix.target }} --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="simd512"'
        run: cargo miri test --release --target ${{ matrix.target }} --features parallel
      - env:
          RUSTFLAGS: '-Dwarnings --cfg keccak_backend="soft"'
        run: cargo miri test --release --target ${{ matrix.target }} --features parallel

  aarch64-sha3:
    needs: set-msrv
    runs-on: ubuntu-latest
    defaults:
      run:
        # Cross mounts only current package, i.e. by default it ignores workspace's Cargo.toml
        working-directory: .
    strategy:
      matrix:
        rust:
          - ${{needs.set-msrv.outputs.msrv}}
          - stable
    steps:
      - uses: actions/checkout@v4
      - uses: RustCrypto/actions/cargo-cache@master
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: aarch64-unknown-linux-gnu
      - name: Install pre-compiled cross
        run: |
          # We need a recent version for RUSTFLAGS to work.
          wget -O /tmp/binaries.tar.gz https://github.com/cross-rs/cross/releases/download/v0.2.4/cross-x86_64-unknown-linux-gnu.tar.gz
          tar -C /tmp -xzf /tmp/binaries.tar.gz
          mv /tmp/cross ~/.cargo/bin
        shell: bash
      - env:
          RUSTFLAGS: '-C target-feature=+sha3 --cfg keccak_backend="aarch64_sha3"'
        run: |
          cd keccak
          # Cross doesn't enable `sha3` by default, but QEMU supports it.
          cross test --target aarch64-unknown-linux-gnu --features parallel