clippy.yml

name: Cargo Clippy

on:
  push:
  pull_request:
  merge_group:

# Ensure that only a single job or workflow using the same concurrency group will run at a time.
# see https://docs.github.com/en/actions/using-jobs/using-concurrency#example-only-cancel-in-progress-jobs-or-runs-for-the-current-workflow
concurrency:
  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }}
  # only needs to check the group's latest commit
  cancel-in-progress: true

jobs:
  cargo-clippy:
    strategy:
      matrix:
        # Supported GitHub-hosted runners and hardware resources
        # see https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
        os: [ubuntu-22.04]
      fail-fast: false
    runs-on: ${{ matrix.os }}

    steps:
    - uses: actions/checkout@v4

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

    - name: Install cargo-clippy
      run: rustup component add clippy

    - name: Run cargo-clippy in Makefile
      run: make clippy && git diff --exit-code Cargo.lock