ci.yml

name: CI

on:
  pull_request:
    branches:
      - main
      - "v[0-9]+.*"
  push:
    branches:
      - main
      - "v[0-9]+.*"

env:
  RUSTFLAGS: -Dwarnings
  RUST_BACKTRACE: 1

jobs:
  pr-status-checks:
    name: Pull Request Status Checks
    runs-on: ubuntu-latest
    needs:
      - docs
      - deny
      - clippy
      - fmt
      - check-features
      - test
      - minimal-versions
    steps:
      - run: exit 0

  docs:
    name: Doc checks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Nightly Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: nightly
      - uses: Swatinem/rust-cache@v2
      - name: Run doc checks
        run: |
          cargo doc --lib --no-deps --all-features --document-private-items
        env:
          RUSTDOCFLAGS: --cfg docsrs -Dwarnings --cfg tokio_unstable --cfg foundations_unstable
          RUSTFLAGS: --cfg docsrs -Dwarnings --cfg tokio_unstable --cfg foundations_unstable

  # based on tokio minver cbecm
  minimal-versions:
    name: minimal-versions
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Nightly Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: nightly
      - name: Install cargo-hack
        uses: taiki-e/install-action@cargo-hack
      - uses: Swatinem/rust-cache@v2
      - name: Check minimal versions
        env:
          # empty those flags!
          RUSTFLAGS:
        run: |
          # Remove dev-dependencies from Cargo.toml to prevent the next `cargo update`
          # from determining minimal versions based on dev-dependencies.
          cargo hack --remove-dev-deps --workspace
          # Update Cargo.lock to minimal version dependencies.
          cargo update -Z minimal-versions
          cargo hack check --all-features --ignore-private
      - name: Check minimal versions with unstable features
        env:
          RUSTFLAGS: --cfg tokio_unstable --cfg foundations_unstable
        run: |
          # Remove dev-dependencies from Cargo.toml to prevent the next `cargo update`
          # from determining minimal versions based on dev-dependencies.
          cargo hack --remove-dev-deps --workspace
          # Update Cargo.lock to minimal version dependencies.
          cargo update -Z minimal-versions
          cargo hack check --all-features --ignore-private

  deny:
    name: Cargo deny checks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - name: Run cargo deny checks
        uses: EmbarkStudios/cargo-deny-action@v1
        with:
          command: check

  clippy:
    name: Clippy checks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy
      - uses: Swatinem/rust-cache@v2
      - name: Run Clippy
        run: |
          cargo clippy --all-targets -- \
            -D warnings \
            -D unreachable_pub \
            -D clippy::await_holding_lock \
            -D clippy::clone_on_ref_ptr
        env:
          RUSTFLAGS: -Dwarnings --cfg tokio_unstable --cfg foundations_unstable

  fmt:
    name: fmt
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt
      - uses: Swatinem/rust-cache@v2
      # Check fmt
      - name: "rustfmt --check"
        # Workaround for rust-lang/cargo#7732
        # based on tokio's ci job
        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.\n" >&2
            exit 1
          fi

  check-features:
    name: Check feature combinations
    strategy:
      matrix:
        os: [ ubuntu-latest, macos-latest ]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - name: Install cargo hack
        uses: taiki-e/install-action@cargo-hack
      - name: Check
        run: ./scripts/check-features.sh
        shell: bash

  check-tokio-unstable:
    name: Check unstable
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - name: Install cargo hack
        uses: taiki-e/install-action@cargo-hack
      - name: Check unstable
        run: cargo hack check --no-dev-deps
        env:
          RUSTFLAGS: -Dwarnings --cfg tokio_unstable --cfg foundations_unstable

  test-tokio-unstable:
    name: Test unstable
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - name: Test unstable
        run: cargo test --all-features
        env:
          RUSTFLAGS: -Dwarnings --cfg tokio_unstable --cfg foundations_unstable
          _RJEM_MALLOC_CONF: prof:true

  run-example-dry-run:
    name: Run example (dry run)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - name: Run example (dry run)
        run: cargo run --example http_server -- --dry-run --config examples/http_server/example_conf.yaml

  test:
    name: Test
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        thing:
          - x86_64-linux
          - aarch64-linux
          - arm64-android
          - arm-android
          - aarch64-ios
          - x86_64-macos
        include:
          - apt_packages: ""
          - custom_env: {}
          - build_only: false
          - cargo_args: ""

          - thing: x86_64-linux
            target: x86_64-unknown-linux-gnu
            rust: stable
            os: ubuntu-latest

          - thing: aarch64-linux
            build_only: true
            target: aarch64-unknown-linux-gnu
            rust: stable
            os: ubuntu-latest
            apt_packages: crossbuild-essential-arm64
            custom_env:
              CC: aarch64-linux-gnu-gcc
              CXX: aarch64-linux-gnu-g++
              CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER: aarch64-linux-gnu-g++

          - thing: arm64-android
            build_only: true
            target: aarch64-linux-android
            rust: stable
            os: ubuntu-latest
            cargo_args: --no-default-features --features server-client-common-default

          - thing: arm-android
            build_only: true
            target: armv7-linux-androideabi
            rust: stable
            os: ubuntu-latest
            cargo_args: --no-default-features --features server-client-common-default

          - thing: aarch64-ios
            build_only: true
            target: aarch64-apple-ios
            rust: stable
            os: macos-latest
            cargo_args: --no-default-features --features server-client-common-default

          - thing: x86_64-macos
            target: x86_64-apple-darwin
            rust: stable
            os: macos-latest

    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Install Rust
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust }}
          targets: ${{ matrix.target }}
      - uses: Swatinem/rust-cache@v2
      - name: Install target-specific APT dependencies
        if: "matrix.apt_packages != ''"
        run: sudo apt update && sudo apt install -y ${{ matrix.apt_packages }}
        shell: bash
      - name: Set Android Linker path
        if: endsWith(matrix.thing, '-android')
        run: echo "CARGO_TARGET_$(echo ${{ matrix.target }} | tr \\-a-z _A-Z)_LINKER=$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/$(echo ${{ matrix.target }} | sed s/armv7/armv7a/)21-clang++" >> "$GITHUB_ENV"
      - name: Build tests
        # We `build` because we want the linker to verify we are cross-compiling correctly for check-only targets.
        run: cargo build --target ${{ matrix.target }} ${{matrix.cargo_args}}
        shell: bash
        env: ${{ matrix.custom_env }}
      - name: Run tests
        if: "!matrix.build_only"
        run: _RJEM_MALLOC_CONF=prof:true cargo test --target ${{ matrix.target }} ${{matrix.cargo_args}}
        shell: bash
        env: ${{ matrix.custom_env }}