lint.yml

name: Lint

on:
  pull_request:
    branches: [main]

permissions:
  contents: read

jobs:
  lint:
    name: clippy & fmt
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Rust stable + clippy + rustfmt
        uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy, rustfmt

      - name: Cache Cargo registry
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-lint-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-cargo-lint-

      - name: cargo fmt --check
        run: cargo fmt --all -- --check

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