chromebrew/.github/workflows/Rubocop.yml

---
name: Rubocop
on:  # yamllint disable-line rule:truthy
  pull_request:
    branches: [master]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - name: Install ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: 3.1
      - name: Install yamllint
        run: |
          sudo apt install yamllint -y
      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v33
      - name: Syntax check
        run: |
          ruby=
          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
            ext="${file##*.}"
            type="$(file -b $file | cut -d' ' -f1)"
            [[ "$type" == "Ruby" ]] && ext="rb"
            case $ext in
              yml|yaml)
                yamllint $file;;
              rb)
                ruby=true
                ruby -wcWlevel=2 $file;;
              *)
                echo "Unable to check syntax of $file.";;
            esac
          done
          echo "ruby=$ruby" >> $GITHUB_ENV
      - name: Rubocop
        if: env.ruby
        uses: Freshly/Octocop@v0.0.2
        with:
          github_token: ${{ secrets.github_token }}
          reporter: github-pr-check
          rubocop_flags: "-c .rubocop.yml"