ci.yml

name: Deploy Marp Documentation

on:
  push:
    branches:
      - master
      - main

permissions:
  contents: write

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
      # Step 1: Checkout the repository
      - name: Checkout repository
        uses: actions/checkout@v4

      # Step 2: Set up environment variables
      - name: Set up environment variables
        run: echo "LANG=en_US.UTF-8" >> $GITHUB_ENV

      # Step 3: Run the Marp command using Docker
      - name: Generate Marp documentation
        run: |
          docker run --rm \
            -v $PWD:/home/marp/app/ \
            -e MARP_USER="$(id -u):$(id -g)" \
            -e LANG=$LANG \
            marpteam/marp-cli:v3.2.0 \
            --theme talk/ngi-theme.css talk/slides.md --html

      # Step 4: Switch to gh-pages branch
      - name: Switch to gh-pages branch
        run: |
          git fetch origin gh-pages
          git checkout -B gh-pages origin/gh-pages || git checkout --orphan gh-pages
          git reset --hard

      # Step 5: Deploy to gh-pages branch
      - name: Deploy to gh-pages branch
        run: |
          mkdir -p .
          cp talk/slides.html index.html
          cp -r talk/figures figures
          git add index.html
          git add -f talk/figures
          git add talk/slides.html
          git add -f figures
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git commit -m "Deploy Marp slides [skip ci]" || echo "No changes to commit"
          git push origin gh-pages --force