Publish prereleases to staging PyPI

Author: dfunckt

.github/workflows/publish.yml

@@ -1,11 +1,8 @@
-# This workflow will upload a Python Package using Twine when a release is created
-# For more information see: https://help.github.com/en/actions/language-and-framework-guides/using-python-with-github-actions#publishing-to-package-registries
-
 name: Publish Package to PyPi
 
 on:
   release:
-    types: [created]
+    types: [released, prereleased]
 
 jobs:
   deploy:
@@ -21,10 +18,19 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install setuptools wheel
+        pip install build
     - name: Build
-      run: python setup.py sdist bdist_wheel
+      run: |
+        python -m build
+    - name: Publish to PyPI Staging
+      if: "github.event.release.prerelease"
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        user: '__token__'
+        password: ${{ secrets.TEST_PYPI_TOKEN }}
+        repository_url: https://test.pypi.org/legacy/
     - name: Publish to PyPI
+      if: "!github.event.release.prerelease"
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         user: '__token__'