name: Rust

on:
  # NB: this differs from the book's project!
  # These settings allow us to run this specific CI pipeline for PRs against
  # this specific branch (a.k.a. book chapter).
  push:
    branches:
      - root-chapter-03-part0
  pull_request:
    types: [ opened, synchronize, reopened ]
    branches:
      - root-chapter-03-part0

env:
  CARGO_TERM_COLOR: always

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true
      - uses: actions-rs/cargo@v1
        with:
          command: test

  fmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
          components: rustfmt
      - uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

  clippy:
    name: Clippy
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
          components: clippy
      - uses: actions-rs/clippy-check@v1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          args: -- -D warnings

  coverage:
    name: Code coverage
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Install stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
      - name: Run cargo-tarpaulin
        uses: actions-rs/tarpaulin@v0.1
        with:
          args: '--ignore-tests --avoid-cfg-tarpaulin'