Build python wheels on releases

.github/workflows/build_wheels.yml

@@ -0,0 +1,61 @@
+name: Build Python Wheels
+
+on:
+  # allow manual runs
+  workflow_dispatch:
+  # run when we tag a release
+  release:
+    types:
+      - "created"
+
+env:
+  BUILD_TYPE: Release
+
+jobs:
+  build_wheels:
+    name: ${{ matrix.config.name }}
+    runs-on: ${{ matrix.config.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+        - {
+            name: "MacOS Latest, Clang",
+            os: macos-latest,
+            cc: "clang", cxx: "clang++"
+          }
+        - {
+            name: "Ubuntu Latest, GCC",
+            os: ubuntu-latest,
+            cc: "gcc", cxx: "g++"
+          }
+        - {
+            name: "Windows Latest, MSVC",
+            os: windows-latest,
+            cc: "cl", cxx: "cl",
+            environment_script: "C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Auxiliary/Build/vcvars64.bat"
+          }
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: true
+          persist-credentials: false
+
+      - name: Set up Python 3.x
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.8' # 3.x grabs latest minor version of python3, but not always fully supported (dependencies)
+
+      - name: Install Python dependencies
+        run: python -m pip install --upgrade pip setuptools wheel numpy tox pytest cibuildwheel==2.1.1 twine
+
+      - name: Build wheels
+        run: python -m cibuildwheel --output-dir wheelhouse
+        env:
+          CIBW_SKIP: "*-win32"
+
+      - uses: actions/upload-artifact@v2
+        with:
+          path: ./wheelhouse/*.whl