name: CI checks

on: [push, pull_request]

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v1
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: 1.36.0
          override: true

      # Ensure all code has been formatted with rustfmt
      - run: rustup component add rustfmt
      - name: Check formatting
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: -- --check --color always

  test:
    name: Test on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macOS-latest]

    steps:
      - uses: actions/checkout@v1
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: 1.36.0
          override: true
      - name: cargo fetch
        uses: actions-rs/cargo@v1
        with:
          command: fetch
      - name: Build tests
        uses: actions-rs/cargo@v1
        with:
          command: build
          args: --verbose --release --tests
      - name: Run tests
        uses: actions-rs/cargo@v1
        with:
          command: test
          args: --verbose --release

  no-std:
    name: Check no-std compatibility
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v1
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: 1.36.0
          override: true
      - run: rustup target add thumbv6m-none-eabi
      - name: cargo fetch
        uses: actions-rs/cargo@v1
        with:
          command: fetch
      - name: Build
        uses: actions-rs/cargo@v1
        with:
          command: build
          args: --verbose --target thumbv6m-none-eabi --no-default-features

  doc-links:
    name: Nightly lint
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v1
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly
          override: true
      - name: cargo fetch
        uses: actions-rs/cargo@v1
        with:
          command: fetch

      # Ensure intra-documentation links all resolve correctly
      # Requires #![deny(intra_doc_link_resolution_failure)] in crate.
      - name: Check intra-doc links
        uses: actions-rs/cargo@v1
        with:
          command: doc
          args: --document-private-items