Merge pull request #125 from nimalank7/add-pipeline-to-deploy-to-gith…

…ub-pages

Add GitHub Actions pipeline to deploy to GitHub pages

.github/workflows/deploy.yml

@@ -0,0 +1,49 @@
+---
+name: Deploy to GitHub Pages
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  pages: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Set commit message up front
+        id: commit_message_writer
+        run: echo "::set-output name=commit_message::Deploy via merge"
+
+      - name: Checkout repository
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+
+      - name: Setup Node
+        uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@8575951200e472d5f2d95c625da0c7bec8217c42
+        with:
+          bundler-cache: true
+
+      - name: Build middleman site
+        run: bundle exec middleman build
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./build
+          cname: guidance.data.gov.uk
+          allow_empty_commit: true
+          commit_message: ${{steps.commit_message_writer.outputs.commit_message}}