main.yml

name: CI
on: [push, pull_request]

jobs:
  test:
    name: Test
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        build: [stable, beta, nightly, macos, windows, mingw]
        include:
          - build: stable
            os: ubuntu-latest
            rust: stable
          - build: beta
            os: ubuntu-latest
            rust: beta
          - build: nightly
            os: ubuntu-latest
            rust: nightly
          - build: macos
            os: macos-latest
            rust: stable
          - build: windows
            os: windows-2022
            rust: stable
          - build: mingw
            os: windows-2022
            rust: stable-x86_64-gnu
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust (rustup)
      run: rustup update ${{ matrix.rust }} --no-self-update && rustup default ${{ matrix.rust }}
      shell: bash
    - run: cargo build
    - run: rustdoc --test README.md -L target/debug/deps --extern flate2=target/debug/libflate2.rlib --edition=2018
    - run: cargo test
    - run: cargo test --features zlib
    - run: cargo test --features zlib --no-default-features
    - run: cargo test --features zlib-default --no-default-features
    - run: cargo test --features zlib-ng-compat --no-default-features
      if: matrix.build != 'mingw'
    - run: cargo test --features zlib-ng --no-default-features
      if: matrix.build != 'mingw'
    - run: cargo test --features zlib-rs --no-default-features
      if: matrix.build != 'mingw'
    - run: cargo test --features cloudflare_zlib --no-default-features
      if: matrix.build != 'mingw'
    - run: |
        if ! cargo check --no-default-features 2>&1 | grep "You need to choose"; then
          echo "expected message stating a zlib backend must be chosen"
          exit 1
        fi
      if: matrix.build == 'stable'

  rustfmt:
    name: Rustfmt & Docs
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update stable && rustup default stable && rustup component add rustfmt
    - run: cargo fmt -- --check
    - run: cargo doc --all-features

  wasm:
    name: WebAssembly
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target: [wasm32-unknown-unknown, wasm32-wasi]
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update stable && rustup default stable && rustup target add ${{ matrix.target }}
    - run: cargo build --target ${{ matrix.target }}

  minimum:
    name: Minimum Rust compiler
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [windows-2022, macos-latest, ubuntu-latest]
    env:
      version: 1.63.0
    steps:
      - uses: actions/checkout@v4
      - name: Install Rust (rustup)
        run: |
          rustup toolchain install ${version} nightly --profile minimal --no-self-update
          rustup default ${version}
          cargo +nightly update -Zminimal-versions
        shell: bash
      - run: cargo build
      - run: cargo build --features zlib
      - run: cargo build --features zlib --no-default-features
      - run: cargo build --features zlib-default --no-default-features
      - run: cargo build --features zlib-ng-compat --no-default-features
      - run: cargo build --features zlib-ng --no-default-features
      - run: cargo build --features cloudflare_zlib --no-default-features

  # Minimum Rust compiler to build `flate2` with no optional features
  minimum-build:
    name: Minimum Rust compiler
    runs-on: ubuntu-latest
    env:
      # If this is changed to pass tests, then set `rust-version` in `Cargo.toml` to the same version.
      version: 1.56.1
    steps:
      - uses: actions/checkout@v4
      - name: Install Rust (rustup)
        run: rustup update ${version} --no-self-update && rustup default ${version}
        shell: bash
      - run: cargo build