deploy.yml

name: Deploy MkDocs to Documentation Repo

on:
  push:
    branches:
      - main
  repository_dispatch:
    types: [rebuild_docs]

env:
  PYTHON_VERSION: '3.x'
  MKDOCS_SITE_DIR: 'site'
  DOCS_BRANCH: 'gh-pages'
  DOCS_SUBDIR: 'diffusion-models'

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Set up Python
        uses: actions/setup-python@v2
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Install MkDocs and dependencies
        run: |
          pip install mkdocs mkdocs-material mkdocstrings mkdocs-jupyter mkdocs-pdf

      - name: Build the MkDocs site
        run: mkdocs build

      - name: Check if gh-pages branch exists
        id: check_branch
        run: |
          if git ls-remote --heads origin gh-pages | grep -q 'refs/heads/gh-pages'; then
            echo "Branch exists"
            echo "branch_exists=true" >> $GITHUB_OUTPUT
          else
            echo "Branch does not exist"
            echo "branch_exists=false" >> $GITHUB_OUTPUT
          fi
      

      - name: Generate GitHub App token
        id: generate_token
        uses: tibdex/github-app-token@v1
        with:
          app_id: ${{ secrets.APP_ID }}
          private_key: ${{ secrets.APP_PRIVATE_KEY }}
          installation_id: ${{ secrets.INSTALLATION_ID }}

      - name: Clone the Documentation Repo
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
          git clone --branch ${{ env.DOCS_BRANCH }} https://x-access-token:${{ steps.generate_token.outputs.token }}@github.com/acceleratescience/resource-hub.git temp_docs

      - name: Deploy to Documentation Repo
        run: |
          # Ensure the target directory exists
          mkdir -p temp_docs/${{ env.DOCS_SUBDIR }}
          
          # Sync the built site to the target directory
          rsync -av --delete ${{ env.MKDOCS_SITE_DIR }}/ temp_docs/${{ env.DOCS_SUBDIR }}/
          
          # Commit and push changes
          cd temp_docs
          git add .
          git diff-index --quiet HEAD || (git stash && git pull --rebase origin ${{ env.DOCS_BRANCH }} && git stash pop)
          git add .
          git diff-index --quiet HEAD || git commit -m "Update ${{ env.DOCS_SUBDIR }} resource-hub"
          git push origin ${{ env.DOCS_BRANCH }}

      - name: Clean up
        if: always()
        run: |
          rm -rf temp_docs