CI.yml

name: CI
on:
  pull_request:
  push:
    branches:
      - master

env:
  RUST_BACKTRACE: 1

permissions:
  contents: read # to fetch code (actions/checkout)

jobs:
  ci-pass:
    name: CI is green
    runs-on: ubuntu-latest
    needs:
      - style
      - test
      - msrv
      - miri
      - features
      - ffi
      - ffi-header
      - doc
      - check-external-types
      - udeps
      - minimal-versions
      - semver
    steps:
      - run: exit 0

  style:
    name: Check Style
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt

      - name: cargo fmt --check
        run: |
          if ! rustfmt --check --edition 2021 $(git ls-files '*.rs'); then
            printf "Please run \`rustfmt --edition 2021 \$(git ls-files '*.rs')\` to fix rustfmt errors.\nSee docs/CODE_STYLE.md for more details.\n" >&2
            exit 1
          fi

  test:
    name: Test ${{ matrix.rust }} on ${{ matrix.os }}
    needs: [style]
    strategy:
      matrix:
        rust:
          - stable
          - beta
          - nightly

        os:
          - ubuntu-latest
          - windows-latest
          - macOS-latest

        include:
          - rust: stable
            features: "--features full"
          - rust: beta
            features: "--features full"
          - rust: nightly
            features: "--features full,nightly"
            benches: true

    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust (${{ matrix.rust }})
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}

      - uses: Swatinem/rust-cache@v2

      - name: Test
        run: cargo test ${{ matrix.features }}

      - name: Test all benches
        if: matrix.benches
        run: cargo test --benches ${{ matrix.features }}

  msrv:
    name: Check MSRV
    needs: [style]

    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get MSRV from package metadata
        id: msrv
        run: grep rust-version Cargo.toml | cut -d'"' -f2 | sed 's/^/version=/' >> $GITHUB_OUTPUT

      - name: Install Rust (${{ steps.msrv.outputs.version }})
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ steps.msrv.outputs.version }}

      - uses: Swatinem/rust-cache@v2

      - name: Pin some dependencies
        run: |
          cargo update -p tokio --precise 1.38.1
          cargo update -p tokio-util --precise 0.7.11
          cargo update -p hashbrown --precise 0.15.0

      - name: Check
        run: cargo check --features full

  miri:
    name: Test with Miri
    needs: [style]
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@nightly
        with:
          components: miri

      - uses: Swatinem/rust-cache@v2

      - name: Test
        # Can't enable tcp feature since Miri does not support the tokio runtime
        run: MIRIFLAGS="-Zmiri-disable-isolation" cargo miri test --features http1,http2,client,server,nightly

  features:
    name: features
    needs: [style]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Install cargo-hack
        uses: taiki-e/install-action@cargo-hack

      - uses: Swatinem/rust-cache@v2

      - name: check --feature-powerset
        run: cargo hack --no-dev-deps check --feature-powerset --depth 2 --skip ffi,tracing
        env:
          RUSTFLAGS: "-D dead_code -D unused_imports"

      - name: check --feature-powerset with tracing feature
        run: cargo hack --no-dev-deps check --feature-powerset --depth 2 --features tracing --skip ffi
        env:
          RUSTFLAGS: "--cfg hyper_unstable_tracing -D dead_code -D unused_imports"

  ffi:
    name: Test C API (FFI)
    needs: [style]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

      - uses: Swatinem/rust-cache@v2

      - name: Build FFI
        env:
          RUSTFLAGS: --cfg hyper_unstable_ffi
        run: cargo rustc --features client,http1,http2,ffi --crate-type cdylib

      - name: Make Examples
        run: cd capi/examples && make client

      - name: Run FFI unit tests
        env:
          RUSTFLAGS: --cfg hyper_unstable_ffi
        run: cargo test --features server,client,http1,http2,ffi --lib

  ffi-header:
    name: Verify hyper.h is up to date
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Install cbindgen
        uses: taiki-e/cache-cargo-install-action@v2
        with:
          tool: cbindgen

      - name: Install cargo-expand
        uses: taiki-e/cache-cargo-install-action@v2
        with:
          tool: cargo-expand

      - uses: Swatinem/rust-cache@v2

      - name: Build FFI
        env:
          RUSTFLAGS: --cfg hyper_unstable_ffi
        run: cargo build --features client,http1,http2,ffi

      - name: Ensure that hyper.h is up to date
        run: ./capi/gen_header.sh --verify

  doc:
    name: Build docs
    needs: [style, test]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@nightly

      - uses: Swatinem/rust-cache@v2

      - name: cargo doc
        run: cargo rustdoc --features full,ffi -- --cfg docsrs --cfg hyper_unstable_ffi -D rustdoc::broken-intra-doc-links

  check-external-types:
    name: Check exposed types
    needs: [style, test]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: nightly-2024-05-01  # Compatible version for cargo-check-external-types

      - name: Install cargo-check-external-types
        uses: taiki-e/cache-cargo-install-action@v2
        with:
          tool: cargo-check-external-types@0.1.12

      - uses: Swatinem/rust-cache@v2

      - name: check-external-types
        run: cargo check-external-types --config .github/workflows/external-types.toml

  udeps:
    needs: [style]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@nightly

      - name: Install cargo-udeps
        uses: taiki-e/install-action@cargo-udeps

      - uses: Swatinem/rust-cache@v2

      - name: Check unused dependencies on default features
        run: cargo udeps

      - name: Check unused dependencies on full features
        run: cargo udeps --features full

  minimal-versions:
    runs-on: ubuntu-latest
    needs: [style]
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@nightly
      - uses: dtolnay/rust-toolchain@stable
      - uses: taiki-e/install-action@cargo-hack
      - uses: taiki-e/install-action@cargo-minimal-versions
      - uses: Swatinem/rust-cache@v2
      - run: cargo minimal-versions check
      - run: cargo minimal-versions check --features full

  semver:
    name: semver
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Check semver
        uses: obi1kenobi/cargo-semver-checks-action@v2
        with:
          feature-group: only-explicit-features
          features: full
          release-type: minor