ci: add workflows

.github/workflows/coverage.yaml

@@ -0,0 +1,49 @@
+name: Code coverage
+
+on:
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  comment_coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - name: GH_TOKEN
+        if: env.GH_TOKEN == ''
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: echo "GH_TOKEN=${GITHUB_TOKEN}" >> $GITHUB_ENV
+
+      - name: 🔀 checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          token: "${{ env.GH_TOKEN }}"
+
+      - name: 🐍 python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
+      - name: 📦 setup pdm
+        uses: pdm-project/setup-pdm@v4
+        with:
+          cache: true
+
+      - name: 📦 install dependencies
+        run: |
+          pdm install
+
+      - name: configure git
+        run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+      - name: 🧪 run coverage
+        run: |
+          pdm run pytest --cov --junitxml=pytest.xml --cov-report=term-missing | tee pytest-coverage.txt
+      - name: 📊 comment coverage
+        uses: MishaKav/pytest-coverage-comment@main
+        with:
+          pytest-coverage-path: pytest-coverage.txt
+          junitxml-path: pytest.xml