ci: rework to use the container

.github/workflows/container.yml

@@ -3,9 +3,15 @@ on:
   push:
     branches:
       - main
+    paths:
+      - .github/workflows/container.yml
+      - Dockerfile
   pull_request:
     branches:
       - main
+    paths:
+      - .github/workflows/container.yml
+      - Dockerfile
 
 env:
   REGISTRY: ghcr.io

.github/workflows/pages.yml

@@ -0,0 +1,31 @@
+name: Pages
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    container: ghcr.io/asahilinux/mkdocs-asahi
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - name: Configure Git Credentials
+        run: |
+          git config --global user.name github-actions[bot]
+          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
+      - name: Build
+        if: github.event_name == 'pull_request'
+        run: mkdocs build
+      - name: Build and deploy to GitHub Pages
+        if: github.event_name != 'pull_request'
+        run: mkdocs gh-deploy --force