Add Forgejo action to deploy docs to Codeberg Wiki

Author: Morwenn

.forgejo/workflows/deploy-to-wiki.yml

@@ -0,0 +1,55 @@
+# Copyright (c) 2026 Morwenn
+# SPDX-License-Identifier: MIT
+
+name: Wiki Deployment
+
+on:
+  push:
+    branches:
+      - trunk
+    paths:
+      - 'docs/**'
+  workflow_dispatch:
+
+jobs:
+  sync-wiki-files:
+    name: Sync Wiki Files
+
+    runs-on: codeberg-tiny-lazy
+
+    steps:
+      - name: Checkout /docs
+        uses: actions/checkout@v6
+        with:
+          repository: ${{forgejo.repository}}
+          path: main
+
+      - name: Checkout wiki
+        uses: actions/checkout@v4
+        with:
+          repository: ${{forgejo.repository}}.wiki
+          path: wiki
+
+      - name: Sync wiki files
+        run: |
+          apt-get update
+          apt-get install -y rsync
+          for docname in main/docs/*.md; do
+            old=$(basename "$docname");
+            new=${old%.*};
+            find main/docs -name "*.md" -exec sed -i "s/$old/$new/g" {} \;
+          done
+          rsync -avzr --delete --exclude='.git/' "main/docs/" "wiki/"
+
+      - name: Commit changes
+        working-directory: wiki
+        run: |
+          git config --local user.email "[email protected]"
+          git config --local user.name "Forgejo Action"
+          git add .
+          git commit -m "Synchronize wiki with docs/"
+
+      - name: Push changes to wiki
+        working-directory: wiki
+        run: |
+          git push