name: crypto-bigint

on:
  pull_request:
    paths-ignore:
      - README.md
  push:
    branches: master
    paths-ignore:
      - README.md

env:
  CARGO_INCREMENTAL: 0
  RUSTFLAGS: "-Dwarnings"
  RUSTDOCFLAGS: "-Dwarnings"

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust:
          - 1.65.0 # MSRV
          - stable
        target:
          - thumbv7em-none-eabi
          - wasm32-unknown-unknown
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: ${{ matrix.target }}
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features alloc
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features der
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features generic-array
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features rand_core
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features rlp
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features serde
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features zeroize
      - run: cargo build --target ${{ matrix.target }} --release --no-default-features --features alloc,der,generic-array,rand_core,rlp,serde,zeroize

  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          # 32-bit Linux
          - target: i686-unknown-linux-gnu
            rust: 1.65.0 # MSRV
            deps: sudo apt update && sudo apt install gcc-multilib
          - target: i686-unknown-linux-gnu
            rust: stable
            deps: sudo apt update && sudo apt install gcc-multilib

          # 64-bit Linux
          - target: x86_64-unknown-linux-gnu
            rust: 1.65.0 # MSRV
          - target: x86_64-unknown-linux-gnu
            rust: stable
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: ${{ matrix.target }}
      - run: ${{ matrix.deps }}
      - run: cargo test --target ${{ matrix.target }} --release --no-default-features
      - run: cargo test --target ${{ matrix.target }} --release
      - run: cargo test --target ${{ matrix.target }} --release --all-features

  # Cross-compiled tests
  cross:
    strategy:
      matrix:
        include:
          # ARM64
          - target: aarch64-unknown-linux-gnu
            rust: stable

          # PPC32 (big endian)
          - target: powerpc-unknown-linux-gnu
            rust: stable

    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: ${{ matrix.deps }}
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: ${{ matrix.target }}
      - run: cargo install cross
      - run: cross test --target ${{ matrix.target }} --release --no-default-features
      - run: cross test --target ${{ matrix.target }} --release
      - run: cross test --target ${{ matrix.target }} --release --all-features

  # dudect benchmarks: check for constant-time operation
  dudect:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
      - run: cargo run --release
          | tee /dev/stderr
          | perl -n -e '/max t = [+-](\d*\.?\d*)/; if ($1 >= 100) { exit 1 }'
        working-directory: dudect

  clippy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: 1.72.0
          components: clippy
      - run: cargo clippy --all --all-features -- -D warnings

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

  build-benchmarks:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: 1.65.0
      - run: cargo build --all-features --benches

  doc:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
      - run: cargo doc --all-features