test-html.yml

name: Test HTML
on:
  pull_request:
  push:
    branches: [main]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
      - name: Generate index.html
        uses: docker://pandoc/core:3.8.2.1@sha256:6c1440145aaa075bd9cee256343bb108d95dfe77cfaafa6475c88d1efd62c580
        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