build before publish

.github/workflows/release.yaml

@@ -7,16 +7,30 @@ on:
       - created
 
 jobs:
-  pypi-publish:
-    name: upload release to PyPI
+  release:
+    name: release
     runs-on: ubuntu-latest
-    # Specifying a GitHub environment is optional, but strongly encouraged
     environment: release
     permissions:
-      # IMPORTANT: this permission is mandatory for trusted publishing
       id-token: write
     steps:
-      # retrieve your distributions here
+      - name: Checkout commit and fetch tag history
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python 3.x
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.x"
+
+      - name: Install release dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install setuptools wheel
+
+      - name: Build package
+        run: python setup.py sdist bdist_wheel
 
-      - name: Publish package distributions to PyPI
+      - name: Upload release to TestPyPI
         uses: pypa/gh-action-pypi-publish@release/v1