Add GitHub Actions workflow for PyPI release (#216)

* Add GitHub Actions workflow for PyPI release

* Add smoke test for populationsim module

This smoke test checks if the populationsim module is available and prints a success message.

* Add workflow_dispatch to release.yml

Author: jpn--

.github/workflows/release.yml

@@ -0,0 +1,36 @@
+name: Release
+
+on:
+  push:
+    tags:
+      # Publish on any tag starting with a `v`, e.g., v1.2.3
+      - v*
+  workflow_dispatch:
+
+jobs:
+  pypi:
+    name: Publish to PyPI
+    runs-on: ubuntu-latest
+    # Environment and permissions trusted publishing.
+    environment:
+      # Create this environment in the GitHub repository under Settings -> Environments
+      name: pypi
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+      - name: Install Python 3.13
+        run: uv python install 3.13
+      - name: Build
+        run: uv build
+      # Check that basic features work and we didn't miss to include crucial files
+      - name: Smoke test (wheel)
+        run: uv run --isolated --no-project --with dist/*.whl tests/smoke_test.py
+      - name: Smoke test (source distribution)
+        run: uv run --isolated --no-project --with dist/*.tar.gz tests/smoke_test.py
+      - name: Publish
+        run: uv publish

tests/smoke_test.py

@@ -0,0 +1,9 @@
+"""Check that basic features work.
+
+Catch cases where e.g. files are missing so the import doesn't work. It is
+recommended to check that e.g. assets are included."""
+
+import populationsim
+
+if populationsim is not None:
+    print("Smoke test succeeded")