linter.yml

name: Linting

on:
  push:
    branches:
      - '**'
  pull_request:
    branches:
      - 'main' # Continuous Releases

jobs:

  # Workflow adapted from Rails
  # https://github.com/rails/rails/blob/main/.github/workflows/rubocop.yml
  rubocop:
    name: RuboCop
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4
        with:
          fetch-depth: 2 # to also fetch parent commit for git diff

      - name: Set up Ruby 3
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: 3.1.4
          bundler-cache: true

      # Deleted files are excluded
      # adapted from https://github.com/actions/checkout/issues/520#issuecomment-1167205721
      - name: Get changed ruby files (git diff)
        run: |
          changedFiles=$(git diff-tree --name-only --diff-filter=d -r HEAD^1 HEAD | grep '\.rb$')
          echo "Changed ruby files: $changedFiles"
          echo "CHANGED_FILES=$changedFiles" >> $GITHUB_ENV

      # Scope Rubocop to changed files:
      # https://robertfaldo.medium.com/commands-to-run-rubocop-and-specs-you-changed-in-your-branch-e6d2f2e4110b
      # Exclude deleted files
      - name: Run RuboCop
        run: |
          $CHANGED_FILES | xargs bundle exec rubocop --parallel


  # eslint:
  #   runs-on: ubuntu-latest
  #   name: A job to check eslint linter errors
  #   steps:
  #     - uses: actions/checkout@v2
  #     - name: Linter count
  #       id: hello
  #       uses: henrixapp/linter-less-or-equal-action@v1.19
  #       with:
  #         name: EsLint
  #         command: npx eslint
  #         total_regexp: \d+ problems
  #         errors_regexp: \d+ errors
  #         warnings_regexp: \d+ warnings
  #         compare_branch: mampf-next
  #         mode: changed
  #         include: .js
  # coffee:
  #   runs-on: ubuntu-latest
  #   name: A job to check coffee linter errors
  #   steps:
  #     - uses: actions/checkout@v2
  #     - name: Linter count
  #       id: hello
  #       uses: henrixapp/linter-less-or-equal-action@v1.19
  #       with:
  #         name: Coffee
  #         command: npx coffeelint
  #         total_regexp: \d+ errors
  #         errors_regexp: \d+ errors
  #         warnings_regexp: \d+ warnings
  #         compare_branch: mampf-next
  #         mode: changed
  #         include: .coffee
  # erblint:
  #   runs-on: ubuntu-latest
  #   name: A job to check erblint linter errors
  #   steps:
  #   - uses: actions/checkout@v2
  #   - name: Set up Ruby 2.7
  #     uses: ruby/setup-ruby@v1
  #     with:
  #       ruby-version: 2.7
  #   - name: Install gems # usual step to install the gems.
  #     run: |
  #       bin/bundle config path vendor/bundle
  #       bin/bundle config set without 'default doc job cable storage ujs test db'
  #       bin/bundle install --jobs 4 --retry 3
  #   - name: Linter count
  #     id: hello
  #     uses: henrixapp/linter-less-or-equal-action@v1.1
  #     with:
  #       name: Erblint
  #       command:  bin/bundle exec erblint  . 
  #       total_regexp: \d+ error(s)
  #       errors_regexp: \d+ error(s)
  #       warnings_regexp: \d+ error(s)
  #       compare_branch: mampf-next