Add sitemap generator

Author: alexander-sei

.github/workflows/generate_sitemap.yml

@@ -0,0 +1,43 @@
+name: Generate Sitemap
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 12 * * *'
+
+jobs:
+  generate-sitemap:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm install -g sitemap-generator-cli
+
+      - name: Generate sitemap
+        run: |
+          SITE_URL="https://docs.sei.io"
+
+          # Generate the sitemap
+          npx sitemap-generator-cli $SITE_URL --filepath ./sitemap.xml --maxDepth 10 --ignoreHreflang true
+
+      - name: Check for changes
+        id: git-check
+        run: |
+          git diff --quiet sitemap.xml || echo "changes=true" >> $GITHUB_OUTPUT
+
+      - name: Commit and push changes
+        if: steps.git-check.outputs.changes == 'true'
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+          git add sitemap.xml
+          git commit -m "Update sitemap.xml"
+          git push