ci: mass-deploy Ddraig SSG workflow

Author: hyperpolymath

.github/workflows/pages.yml

@@ -0,0 +1,53 @@
+name: GitHub Pages (Ddraig SSG)
+on:
+  push:
+    branches: [main, master]
+  workflow_dispatch:
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    container:
+      image: ghcr.io/stefan-hoeck/idris2-pack@sha256:f0758996a931fb35d9ecb1de273c4d59dabe2a09b433afc7e357f65a08b7e1ff
+    steps:
+      - name: Checkout Site
+        uses: actions/checkout@v4
+      - name: Checkout Ddraig SSG
+        uses: actions/checkout@v4
+        with:
+          repository: hyperpolymath/ddraig-ssg
+          path: .ddraig-ssg
+      - name: Compile Ddraig
+        working-directory: .ddraig-ssg
+        run: idris2 Ddraig.idr -o ddraig
+      - name: Build site
+        run: |
+          mkdir -p src
+          if [ ! -f src/index.md ] && [ -f README.md ]; then
+            cp README.md src/index.md
+          elif [ ! -f src/index.md ]; then
+            echo "# ${GITHUB_REPOSITORY}" > src/index.md
+          fi
+          ./.ddraig-ssg/build/exec/ddraig build src _site https://hyperpolymath.github.io/${GITHUB_REPOSITORY#*/}
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: '_site'
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4