add gha

Author: EED85

.github/workflows/ci..yml

@@ -1 +1,25 @@
+name: ruff
 
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: echo environment
+        run: echo ${{ github.ref }} && echo ${{ github.base_ref }} && echo ${{ github.head_ref }}
+      - name: if base is main
+        if: ${{ github.ref == 'refs/heads/main' }}
+        run: echo hat geklappt
+      - name: Install uv # https://eed-solutions.atlassian.net/wiki/spaces/ES/pages/782434388/Best+Practice+uv+package+management#Github-Actions
+        uses: astral-sh/setup-uv@v4
+        with:
+          enable-cache: true
+      - name: set up ruff
+        uses: astral-sh/ruff-action@v3
+      - name: Run Ruff
+        run: uv run ruff check --output-format=github