github-pages-deploy.yml

name: Deploy in Github Pages
on: 
  push:
    paths:
    - 'slides/**'

permissions: 
  contents: write

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 2
      - uses: actions/setup-node@v3
        with:
          node-version: '20'
      - name: Install dependencies
        run: npm install
      - name: Install slidev
        run:  npm i -g @slidev/cli
      - name: Get modified slide directories
        id: get-dirs
        run: |
          # Get the list of modified slide markdown files
          echo git show ${{ github.sha }} --name-only
          modified_files=$(git show ${{ github.sha }} --name-only | grep "^slides/.*/.*.md$")

          echo "Modified files: $modified_files"
      
          # Initialize an empty string to store unique directories
          modified_dirs=""
      
          # Loop through modified files and extract their directories
          for file in $modified_files; do
            dir=$(dirname $file)
            # Add directory to list, separated by space
            modified_dirs="$modified_dirs $dir"
          done

          echo "Modified directories: $modified_dirs"
      
          # Output the modified directories to be used as an environment variable
          echo "modified_dirs=${modified_dirs}" >> $GITHUB_ENV

      - name: Deploy 🚀
        uses: JamesIves/github-pages-deploy-action@v4
        with:
          branch: gh-pages # The branch the action should deploy to.
          folder: slides/${{env.talk_title}}/dist # The folder the action should deploy.
          target-folder: ${{ env.talk_title }}
          clean: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}