name: Continuous Integration

on:
  pull_request:
    paths:
      - "**.rs"
      - "Cargo.toml"
      - "Cargo.lock"

jobs:
  fmt:
    name: Source formatting check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly
          override: true
          components: rustfmt

      - name: Check formatting
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: -- --check

  check:
    name: Compilation check
    runs-on: ubuntu-latest
    strategy:
      fail-fast: true
      matrix:
        rust:
          - stable
          - beta
          - nightly
          - 1.41.0
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

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

      - name: Run cargo check
        uses: actions-rs/cargo@v1
        with:
          command: check

  clippy:
    name: Lint check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true
          components: clippy

      - name: Run lints
        uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: -- -D warnings

  ci-crate:
    name: CI crate check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal

      - name: Run ci crate
        uses: actions-rs/cargo@v1
        with:
          command: run
          args: -p ci

  crate-example:
    name: Crate example check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal

      - name: Run crate example
        uses: actions-rs/cargo@v1
        with:
          command: run
          args: --example default