lint.yml

name: Lint the code

on:
  push:
    branches:
      - main
    paths:
      - ".github/**/*"
      - "**.rs"
      - "**/Cargo.toml"
      - "**/Cargo.lock"
  pull_request:
    branches:
      - main
    paths:
      - ".github/**/*"
      - "**.rs"
      - "**/Cargo.toml"
      - "**/Cargo.lock"

jobs:
  linting:
    name: Lint on ${{ matrix.os }} for ${{ matrix.target }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        target:
          - x86_64-unknown-linux-gnu
          - aarch64-unknown-linux-musl
          - armv7-unknown-linux-musleabihf
          - arm-unknown-linux-musleabihf
          - x86_64-pc-windows-msvc
          - x86_64-apple-darwin
          - aarch64-apple-darwin
        include:
          - os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
          - os: ubuntu-latest
            target: aarch64-unknown-linux-musl
          - os: ubuntu-latest
            target: armv7-unknown-linux-musleabihf
          - os: ubuntu-latest
            target: arm-unknown-linux-musleabihf
          - os: windows-latest
            target: x86_64-pc-windows-msvc
          - os: macos-latest
            target: x86_64-apple-darwin
          - os: macos-latest
            target: aarch64-apple-darwin

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Setup Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          components: llvm-tools-preview
          targets: ${{ matrix.target }}

      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: lint-${{ runner.os }}-cargo-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            lint-${{ runner.os }}-cargo-${{ matrix.target }}-
            ${{ runner.os }}-cargo-${{ matrix.target }}-

      # ----- Actual linting logic ------
      # These lines should mirror the `just lint` command.
      - name: cargo fmt
        run: cargo fmt --all -- --check

      - name: cargo clippy
        run: cargo clippy --tests --workspace -- -D warnings

      - name: Install taplo-cli
        run: cargo install taplo-cli || exit 0

      - name: cargo sort
        run: ~/.cargo/bin/taplo format --check