add: build and deploy mirror in CI

Author: 0xB10C

.github/workflows/build-and-deploy.yml

@@ -0,0 +1,72 @@
+name: Build and deploy mirror
+
+on:
+  schedule:
+    # Nightly at 03:00 UTC.
+    - cron: "0 3 * * *"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout backup data
+        uses: actions/checkout@v6
+        with:
+          ref: master
+          path: backup
+
+      - name: Checkout mirror tool
+        uses: actions/checkout@v6
+        with:
+          repository: 0xB10C/github-metadata-mirror
+          ref: master
+          path: tool
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: pip install mistune
+
+      - name: Build mirror
+        working-directory: tool
+        run: |
+          python build.py \
+            --input ../backup \
+            --output ../public \
+            --title "Bitcoin Core GUI GitHub Mirror" \
+            --owner bitcoin-core \
+            --repository gui \
+            --base-url "/github-metadata-backup-bitcoin-core-gui/" \
+            --markdown
+
+      - name: Configure Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: public
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-slim
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4