Github Action to build and upload linux wheels (#20)

* test wheels

* review comments from Erik

Author: michelp

.github/workflows/wheels.yml

@@ -0,0 +1,33 @@
+name: Python wheel package build and publish
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  wheels:
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash -l {0}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ["ubuntu-latest"]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Build manylinux Python wheels
+      uses: RalfG/[email protected]_x86_64
+      with:
+        python-versions: 'cp37-cp37m cp38-cp38 cp39-cp39'
+        build-requirements: 'cffi numpy>=1.18,<1.19 cython'
+        pre-build-command: ${{ format('sh suitesparse.sh {0}', github.ref) }}
+    - name: Publish wheels to PyPI
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+      run: |
+        python -m pip install --upgrade pip
+        pip install twine       
+        twine upload dist/*-manylinux*.whl

suitesparse.sh

@@ -0,0 +1,13 @@
+
+if [[ $1 =~ refs/tags/v([0-9]\.[0-9]\.[0-9]).*$ ]];
+then
+    VERSION=${BASH_REMATCH[1]}
+else
+    exit -1
+fi
+
+curl -L https://github.com/DrTimothyAldenDavis/GraphBLAS/archive/refs/tags/v${VERSION}.tar.gz | tar xzf -
+cd GraphBLAS-${VERSION}/build
+cmake .. -DCMAKE_BUILD_TYPE=Release
+make -j$(nproc)
+make install