Deploy wheels.

.github/workflows/build_wheels.yml

@@ -1,6 +1,11 @@
 name: Build
 
-on: [push, pull_request]
+#on: [push, pull_request]
+
+on:
+  push:
+    tags:
+      - '*'
 
 jobs:
   build_wheels:
@@ -20,11 +25,21 @@ jobs:
           #CIBW_BEFORE_ALL_MACOS: brew install gcc
           CIBW_BEFORE_ALL_MACOS: bash scripts/build-wheels-macos.sh
           CIBW_BEFORE_BUILD: pip install numpy scipy cython
-          CIBW_BUILD: cp36-* cp37-* cp38-* cp39-*
+          CIBW_BUILD: cp36-*
+          #cp37-* cp38-* cp39-*
           CIBW_SKIP: "*-win32 *-manylinux_i686 *aarch64 *ppc64le *s390x *universal2 *arm64"
           CIBW_TEST_REQUIRES: pytest
           CIBW_TEST_COMMAND: pytest --pyargs qmeq
 
       - uses: actions/upload-artifact@v2
         with:
           path: ./wheelhouse/*.whl
+
+      - name: Upload binaries to release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: dist/*.whl
+          tag: ${{ github.ref }}
+          overwrite: true
+          file_glob: true