Publish releases to PyPI

.github/workflows/build.yaml

@@ -1,22 +1,25 @@
 name: Build BEMEWS
 
-# Controls when the action will run. Triggers the workflow on push or pull request
-# events but only for the main branch
+# Workflow that builds and tests the BEMEWS package on every pull request
+# and on every push to the main branch. If a new version tag is pushed, the
+# workflow will also publish the package to PyPI.
+
 on:
   push:
     branches: [ main ]
+    tags: # Sequence of patterns matched against refs/tags
+      - 'v*' # Any tag matching v*, e.g. v1.0, v1.2b1
   pull_request:
     branches: [ main ]
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
-  # This workflow contains a single job called "build"
   build:
     strategy:
       fail-fast: false
       matrix:
         os: [macos-latest] # [macos-latest, ubuntu-latest, windows-latest]
-        python-version: ['3.12'] # ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.10', '3.11', '3.12']
     runs-on: ${{ matrix.os }}
 
     steps:
@@ -52,3 +55,33 @@ jobs:
       - name: Run example script
         run: |
           python BEMEWS_example.py
+
+      - name: Upload distributions
+        uses: actions/upload-artifact@v4
+        with:
+          path: dist/
+          name: release-dists-${{ matrix.os }}-${{ matrix.python-version }}
+          if-no-files-found: error
+
+  publish_to_pypi:
+    # Only run if a new tag was created …
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
+    # … and if all builds above were successful
+    needs: build
+
+    runs-on: ubuntu-latest
+    permissions:
+      # See https://docs.github.com/en/actions/deployment/security-hardening-your-deployments/about-security-hardening-with-openid-connect#adding-permissions-settings
+      id-token: write
+      contents: read
+
+    steps:
+      - name: Retrieve release distributions
+        uses: actions/download-artifact@v4
+        with:
+          path: dist/
+          pattern: release-dists-*
+          merge-multiple: true
+
+      - name: Publish distribution 📦 to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1

README.md

@@ -3,7 +3,7 @@ Image by dreamstudio.ai
 
 
 # BEMEWS
-A python module for calculating the Earth-matter Effect. Works standalone or with SNEWPY
+A python module for calculating the Earth-matter Effect. BEMEWS is a standalone module which SNEWPY uses to compute the Earth-Matter Effect for supernova neutrinos. The BEMEWS_example.py script shows how to use the module in the standalone mode. The EarthMatter flavor transformation class in SNEWPY is essentially the same script but with the output turned off. 
 
 1) You will need the python-devel, pybind11 and setuptools packages
 

pyproject.toml

@@ -12,7 +12,7 @@ authors = [
     {name="Anne Graf"},
 ]
 
-version = "1.0"
+version = "1.0a1"
 requires-python = ">=3.9"  # TODO: Also update classifiers below!
 dependencies = [
     "numpy >= 1.16",