update-readme.yml

name: Update README with Projects

on:
  schedule:
    - cron: '0 */12 * * *' # Every 12 hours (UTC)
  workflow_dispatch:

jobs:
  update-readme:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - uses: actions/checkout@v4

      - name: Fetch projects
        run: |
          curl -sf "${{ secrets.PROJECTS_API_URL }}" -o /tmp/projects.md
          if [ ! -s /tmp/projects.md ]; then
            echo "Failed to fetch projects or empty response"
            exit 1
          fi

      - name: Ensure markers exist
        run: |
          if ! grep -q "<!-- PROJECTS:START -->" README.md; then
            echo "<!-- PROJECTS:START -->" >> README.md
            echo "<!-- PROJECTS:END -->" >> README.md
          fi

      - name: Update README block safely
        run: |
          awk '
          /<!-- PROJECTS:START -->/ {
            print
            while ((getline line < "/tmp/projects.md") > 0)
              print line
            close("/tmp/projects.md")
            skip=1
            next
          }
          /<!-- PROJECTS:END -->/ {
            skip=0
            print
            next
          }
          !skip
          ' README.md > README.new && mv README.new README.md

      - name: Commit changes if needed
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
          git diff --quiet README.md || (
            git add README.md
            git commit -m "chore: update projects"
            git push
          )