Publish universal wheel for macOS (#200)

+name: build-wheels-macos
+
+on:
+  push:
+    branches:
+      - wheel
+    tags:
+      - '*'
+
+env:
+  SHERPA_ONNX_IS_IN_GITHUB_ACTIONS: 1
+
+concurrency:
+  group: build-wheels-macos-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      # see https://cibuildwheel.readthedocs.io/en/stable/changelog/
+      # for a list of versions
+      - name: Build wheels
+        uses: pypa/cibuildwheel@v2.11.4
+        env:
+          CIBW_BEFORE_BUILD: "pip install -U cmake numpy"
+          CIBW_ENVIRONMENT: SHERPA_ONNX_CMAKE_ARGS="-DCMAKE_OSX_ARCHITECTURES='arm64;x86_64'"
+          CIBW_ARCHS: "universal2"
+          CIBW_BUILD_VERBOSITY: 3
+
+      - name: Display wheels
+        shell: bash
+        run: |
+          ls -lh ./wheelhouse/
+
+          ls -lh ./wheelhouse/*.whl
+
+      - uses: actions/upload-artifact@v2
+        with:
+          path: ./wheelhouse/*.whl
+
+      - name: Publish wheels to PyPI
+        env:
+          TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        run: |
+          python3 -m pip install --upgrade pip
+          python3 -m pip install wheel twine setuptools
+
+          twine upload ./wheelhouse/*.whl

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest]
 
     steps:
       - uses: actions/checkout@v2
@@ -35,7 +35,6 @@ jobs:
           CIBW_SKIP: "cp27-* cp35-* cp36-* *-win32 pp* *-musllinux* *-manylinux_i686"
           CIBW_BUILD_VERBOSITY: 3
           CIBW_ENVIRONMENT_LINUX: LD_LIBRARY_PATH='/project/build/bdist.linux-x86_64/wheel/sherpa_onnx/lib'
-          CIBW_REPAIR_WHEEL_COMMAND_MACOS: ""
 
       - name: Display wheels
         shell: bash