diff --git a/.gitea/workflows/gendiff.yml b/.gitea/workflows/gendiff.yml
new file mode 100644
index 0000000..481d0f4
--- /dev/null
+++ b/.gitea/workflows/gendiff.yml
@@ -0,0 +1,31 @@
+name: gendiff
+run-name: 
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Gen Diff
+        run: |
+          bash tools/diff.sh
+          git config user.name test
+          git config user.email test@github.com
+          git add .
+          git commit  --allow-empty  -m "$(date '+%Y-%m-%d %H:%M:%S')"
+          git diff main origin/main --name-only > diff
+          sed -i 's/src\/common\/units\/names_ships\/CHI_ship_names.txt//g' diff
+          sed -i 's/src\/common\/on_actions\/00_navy_rework.txt//g' diff
+          zip archive.zip $(sed '/^$/d' diff)
+    - name: Upload
+      uses: https://gitea.com/actions/gitea-release-action@v1
+      with:
+        files: |-
+          archive.zip
+        api_key: '${{ secrets.GITHUB_TOKEN }}'
+        tag_name: 'Diff'
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