Create fixer.yml

.github/workflows/fixer.yml

@@ -0,0 +1,34 @@
+name: Fixer
+
+on: [push, pull_request]
+
+concurrency:
+  group: fixer-${{ github.event_name == 'pull_request' && format('{0}-{1}', github.workflow, github.event.pull_request.number) || github.workflow_ref }}
+  cancel-in-progress: true
+
+jobs:
+  ruff-lint:
+    name: Ruff
+    runs-on: ubuntu-latest
+    permissions:
+      # Give the default GITHUB_TOKEN write permission to commit and push the
+      # added or changed files to the repository.
+      contents: write
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.head_ref }}
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          cache: 'pip'
+
+      - uses: chartboost/ruff-action@v1
+        with:
+          args: 'check --preview --fix-only'
+
+      - uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: 'style fixes by ruff'