add ruff

.github/workflows/ci.yml

@@ -6,12 +6,20 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python
-      uses: actions/setup-python@v2
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: pip install -r requirements.txt
-    - name: Run tests
-      run: python3 test.py
+      - uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.x"
+
+      - name: Install dependencies
+        run: |
+          pip install -r requirements.txt
+          pip install ruff
+
+      - name: Run Ruff
+        run: ruff check .
+
+      - name: Run tests
+        run: python3 test.py