check-update.yml

name: Check Update

on: push

jobs:
  checkDocs:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2

      - uses: actions/cache@v1
        id: cache
        with:
          path: node_modules
          key: ${{ runner.os }}-npm-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-npm-
      - name: Use Node.js 12
        uses: actions/setup-node@v1
        with:
          registry-url: "https://registry.npmjs.org"
          node-version: '12.x'

      - name: Install dependencies
        if: steps.cache.outputs.cache-hit != 'true'
        run: npm ci

      - name: Update Rules Docs
        run: npm run update

      - name: Check diff
        id: check-diff
        run: |
          echo ::set-output name=diff-files::$(git diff --diff-filter=AM --name-only)

      - name: Report
        if: steps.check-diff.outputs.diff-files
        uses: mshick/add-pr-comment@v1
        with:
          message: |
            Please run `npm run update`
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          allow-repeats: 'true'

      - name: Exit
        if: steps.check-diff.outputs.diff-files
        run: exit 1