added preview deploy workflow

.github/workflows/deploy-preview.yml

@@ -0,0 +1,65 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches:
+      - 'preview'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      REMOTE_SERVER: ${{ secrets.REMOTE_SERVER }}
+      REMOTE_USER: ${{ secrets.REMOTE_USER }}
+      MD_DOCS_FOLDER: ${{ github.workspace }}/nightwatch-docs
+      API_DOCS_FOLDER: ${{ github.workspace }}/nightwatch/lib/api
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Checkout Nightwatch source code
+        uses: actions/checkout@v2
+        with:
+          repository: nightwatchjs/nightwatch
+          path: nightwatch
+
+      - name: Checkout Nightwatch docs folder
+        uses: actions/checkout@v2
+        with:
+          repository: nightwatchjs/nightwatch-docs
+          ref: versions/3.0
+          path: nightwatch-docs
+
+#      - name: Delete not needed files
+#        run: |
+#          rm ${{ github.workspace }}/nightwatch-docs/LICENSE.md
+#          rm ${{ github.workspace }}/nightwatch-docs/README.md
+
+      - name: Use Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: '16'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Prebuild #required ensure api pages are generated before the ejs files are processed
+        run: npm run prebuild
+
+      - name: Build the website
+        run: npm run build
+
+      - name: Creating symlinks to old version
+        run: |
+          ln -s ../nightwatchjs.org out/v17
+          ln -s ../v09.nightwatchjs.org out/v09
+          ln -s ../nightwatch-v26 out/v26
+
+      - name: Deploy to server
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.PROD_DEPLOY_SECRET }}" > ~/.ssh/id_rsa
+          chmod 600 ~/.ssh/id_rsa
+          ssh-keyscan ${{ env.REMOTE_SERVER }} >> ~/.ssh/known_hosts
+          rsync -azP --delete ./out/ ${{ env.REMOTE_USER }}@${{ env.REMOTE_SERVER }}:${{ secrets.REMOTE_PREVIEW_DIRECTORY }}