update-mdbook.yml

name: Deploy mdBook Site to Pages

on:
    push:
        branches:
            - "*"
    workflow_dispatch:

permissions:
    contents: read
    id-token: write
    pages: write
    packages: write

concurrency:
    group: pages
    cancel-in-progress: true

jobs:
    build-docker:
        runs-on: ubuntu-latest
        outputs:
            image_built: ${{ steps.check_image.outputs.image_built }}

        steps:
            - name: Checkout repository
              uses: actions/checkout@v4

            - name: Set up Docker Buildx
              uses: docker/setup-buildx-action@v3

            - name: Log in to GitHub Container Registry
              uses: docker/login-action@v3
              with:
                  registry: ghcr.io
                  username: ${{ github.actor }}
                  password: ${{ secrets.GITHUB_TOKEN }}

            - name: Check if Docker Image Exists
              id: check_image
              run: |
                  IMAGE="ghcr.io/${{ github.repository }}:latest"
                  if docker pull $IMAGE > /dev/null 2>&1; then
                    echo "Image exists."
                    echo "image_built=false" >> $GITHUB_OUTPUT
                  else
                    echo "Image does not exist."
                    echo "image_built=true" >> $GITHUB_OUTPUT
                  fi

            - name: Build and Push Docker Image
              if: steps.check_image.outputs.image_built == 'true'
              uses: docker/build-push-action@v5
              with:
                  context: .
                  push: true
                  tags: ghcr.io/${{ github.repository }}:latest
                  load: false
                  cache-from: type=registry,ref=ghcr.io/${{ github.repository_owner }}/mdbook:latest
                  cache-to: type=inline

    deploy-mdbook:
        needs: build-docker
        runs-on: ubuntu-latest
        container:
            image: ghcr.io/${{ github.repository }}:latest
            options: --user root

        steps:
            - name: Log in to GitHub Container Registry
              uses: docker/login-action@v3
              with:
                  registry: ghcr.io
                  username: ${{ github.actor }}
                  password: ${{ secrets.GITHUB_TOKEN }}
 
            - name: Checkout Source
              uses: actions/checkout@v4

            - name: Install Dependencies
              run: apk add --no-cache curl

            - name: Prepare Assets Directories
              run: mkdir -p src/fonts src/assets

            - name: Download Additional Assets
              run: |
                  # Devicon Fonts and CSS
                  curl -sSf -o devicon.min.css https://raw.githubusercontent.com/devicons/devicon/master/devicon.min.css
                  curl -sSf -o src/fonts/devicon.eot https://raw.githubusercontent.com/devicons/devicon/master/fonts/devicon.eot
                  curl -sSf -o src/fonts/devicon.svg https://raw.githubusercontent.com/devicons/devicon/master/fonts/devicon.svg
                  curl -sSf -o src/fonts/devicon.ttf https://raw.githubusercontent.com/devicons/devicon/master/fonts/devicon.ttf
                  curl -sSf -o src/fonts/devicon.woff https://raw.githubusercontent.com/devicons/devicon/master/fonts/devicon.woff

                  # WhichLang Assets
                  curl -sSf -o src/assets/whichlang.css https://raw.githubusercontent.com/phoenixr-codes/mdbook-whichlang/master/src/whichlang.css
                  curl -sSf -o src/assets/whichlang.js https://raw.githubusercontent.com/phoenixr-codes/mdbook-whichlang/master/dist/whichlang.js

            - name: Install Catppuccin Theme
              run: mdbook-catppuccin install

            - name: Build the mdBook Site
              run: mdbook build

            - name: Turn off Jekyll
              run: touch book/.nojekyll

            - name: Upload Artifact
              uses: actions/upload-pages-artifact@v3
              with:
                  path: ./book

            - name: Deploy to GitHub Pages
              id: deployment
              uses: actions/deploy-pages@v4
              if: ${{ github.ref == 'refs/heads/main' }}