Add GitHub workflow

Author: lcnittl

.github/workflows/publish.yaml

@@ -0,0 +1,39 @@
+# This workflow will upload a Python Package to PyPI when a release is published
+# For more information see:
+#   - https://packaging.python.org/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/
+#   - https://help.github.com/en/actions/language-and-framework-guides/using-python-with-github-actions#publishing-to-package-registries
+
+name: Upload Python Package
+
+on:
+  push
+
+jobs:
+  build-n-publish:
+    name: Build and publish to PyPI
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.x"
+      - name: Install pypa/build
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade build
+      - name: Build package
+        run: |
+          python -m build
+      - name: Publish package to Test PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1.4.2
+        with:
+          user: __token__
+          password: ${{ secrets.TEST_PYPI_API_TOKEN }}
+      - name: Publish package to PyPI
+        if: startsWith(github.ref, "refs/tags")
+        uses: pypa/gh-action-pypi-publish@release/v1.4.2
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}