name: CI

on: [push, pull_request]

jobs:
  lint:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2

      - name: Install system dependencies
        run: |
          # zstd is an optional dep of actions/cache@v3
          apt-get -y update
          apt-get -y install zstd

      - name: Cache Rust
        uses: actions/cache@v3
        with:
          path: |
            ~/.rustup/
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-1.73.0-lint

      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: '1.76.0'
          components: rustfmt
          override: true

      - name: rustfmt
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

      - name: clippy
        uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: ${{ matrix.default }} -- -Dwarnings

  test:
    name: Build and test
    runs-on: ubuntu-latest

    strategy:
      matrix:
        rust:
        - nightly
        - beta
        - '1.76.0'

        features:
        - ''

    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install system dependencies
        run: |
          # zstd is an optional dep of actions/cache@v3
          apt-get -y update
          apt-get -y install lld zstd

      - name: Cache Rust
        uses: actions/cache@v3
        with:
          path: |
            ~/.rustup/
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-${{ matrix.rust }}-test

      - name: Install rust (${{ matrix.rust }})
        uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.rust }}
          profile: minimal
          override: true

      - name: Configure Cargo to use lld
        run: |
          echo '[build]' >> ~/.cargo/config
          echo 'rustflags = ["-Clink-args=-fuse-ld=lld"]' >> ~/.cargo/config

      - name: Build
        uses: actions-rs/cargo@v1
        with:
          command: build
          args: ${{ matrix.features }}

      - name: Test
        uses: actions-rs/cargo@v1
        with:
          command: test
          args: ${{ matrix.features }}

      - name: Doc
        uses: actions-rs/cargo@v1
        with:
          command: doc
          args: ${{ matrix.features }} --no-deps