name: Lint Rust files

on:
  push:
    branches:
      - "**"
      - "!main"
    paths:
      - '**/*.rs'
      - '**/Cargo.toml'
      - '**/Cargo.lock'
      - 'clippy.toml'
      - '.cargo/config.toml'
      - '.github/workflows/lint.yml'

env:
  CARGO_INCREMENTAL: 0
  RUST_BACKTRACE: full

jobs:
  clippy:
    name: Clippy
    timeout-minutes: 30
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          persist-credentials: false

      - name: Run clippy
        uses: actions-rs/clippy-check@v1.0.7
        with:
          # GitHub displays the clippy job and its results as separate entries
          name: Clippy (stable) Results
          token: ${{ secrets.GITHUB_TOKEN }}
          args: --all-features --all-targets -- -D warnings

  fmt:
    name: Rustfmt
    timeout-minutes: 30
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          persist-credentials: false

      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          components: rustfmt
          override: true

      - uses: Swatinem/rust-cache@v1 # TODO: No cache is being found

      - uses: actions-rs/cargo@v1.0.3
        with:
          command: fmt
          args: --all -- --check