test-html.yml

name: Test HTML
on:
  pull_request:
  push:
    branches: [main]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - name: Generate index.html
        uses: docker://pandoc/core:3.9.0.2@sha256:bfca0ecc070ece31b6f56ba668446ab2dc9c973047eebb57b4d0710de8b91d0b
        with:
          args: >-
            --standalone --template=template.html --output=index.html README.md
      - name: Validate title tag
        run: |
          count_open=$(grep -o '<title>' index.html | wc -l)
          count_close=$(grep -o '</title>' index.html | wc -l)
          if [ "$count_open" -ne 1 ] || [ "$count_close" -ne 1 ]; then
            echo "Expected exactly one <title> tag and one </title> tag, found $count_open and $count_close"
            exit 1
          fi
          close_count=$(grep -o '</title>' index.html | wc -l)
          if [ "$close_count" -ne 1 ]; then
            echo "Expected exactly one </title> tag, found $close_count"
            exit 1
          fi