lint-and-test-workflow.yml

name: Lint and test

# By default, runs when a pull request is opened, synchronized, or reopened.
on: pull_request

jobs:
  lint_and_test:
    name: Lint and test
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v1.0.0
      - name: Setup node
        uses: actions/setup-node@v1
        with:
          node-version: '12.x'
      - name: Cache node_modules
        uses: actions/cache@v1
        with:
          path: ~/.npm
          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-
      - name: Install
        run: npm ci
      
      # Checks to see if any files in the PR match one of the listed file types.
      # We can use this filter to decide whether or not to run linters or tests.
      # You can check if a file with a listed file type is in the PR by doing:
      # if: ${{ steps.filter.outputs.md == 'true' }}
      # This will return true if there's a markdown file that was changed
      # in the PR.
      - uses: dorny/paths-filter@v2.2.1
        id: filter
        with:
          filters: |
            md:
              - '**/*.md'
            js:
              - '**/*.js'
            json:
              - '**/*.json'
            yml:
              - '**/*.yml'
            scss:
              - '**/*.scss'
            njk:
              - '**/*.njk'
      
      # Use the filter to check if files with a specific file type were changed
      # in the PR. If they were, run the relevant linters. Otherwise, skip.

      - name: Lint Markdown
        if: ${{ steps.filter.outputs.md == 'true' }}
        run: npm run lint:md

      - name: Lint JavaScript
        if: ${{ steps.filter.outputs.js == 'true' || steps.filter.outputs.json == 'true' }}
        run: npm run lint:js
      
      - name: Lint SCSS
        if: ${{ steps.filter.outputs.scss == 'true' }}
        run: npm run lint:scss

      # Only run tests if the PR touches behavior related files.
      - name: Test
        if: ${{ steps.filter.outputs.js == 'true' || steps.filter.outputs.json == 'true' || steps.filter.outputs.yml == 'true' || steps.filter.outputs.njk == 'true'}}
        run: npm run test