deploy to github pages

.github/workflows/docs.yml

@@ -0,0 +1,48 @@
+name: Docs
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+      - uses: actions/configure-pages@v3
+        id: pages
+      - name: Install dependencies
+        run: npm install
+      - name: Build
+        env:
+          GITHUB_PAGES_BASE: "${{ steps.pages.outputs.base_url }}"
+        run: npm run docs:build
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: .vuepress/dist/
+
+  deploy:
+    if: github.ref == 'refs/heads/master'
+    needs: build
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    concurrency:
+      group: deploy
+      cancel-in-progress: true
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.vuepress/config.js

@@ -1,8 +1,9 @@
 import { viteBundler } from '@vuepress/bundler-vite'
 import { defaultTheme } from '@vuepress/theme-default'
 import { defineUserConfig } from 'vuepress'
+import { env } from 'node:process';
 
-export default defineUserConfig({
+const options = {
   title: "MetaCPAN infra",
   description: "MetaCPAN infrastructure and networking",
   bundler: viteBundler(),
@@ -32,7 +33,10 @@ export default defineUserConfig({
   //     }
   //   ]
   ]
-})
-
-export {
 };
+
+if (env.GITHUB_PAGES_BASE) {
+  options.base = env.GITHUB_PAGES_BASE.replace(/^\/?/, '/').replace(/\/?$/, '/');
+}
+
+export default defineUserConfig(options);