Update wheel build process (#53)

Author: kylebarron

.github/workflows/build.yml .github/workflows/build-wheels.yml.github/workflows/build.yml renamed to .github/workflows/build-wheels.yml

@@ -12,40 +12,21 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest]
 
     steps:
-    - uses: actions/checkout@v1
-
-    - name: set environment variables
-      uses: allenevans/set-env@v1.1.0
-      with:
-        # Only build on CPython
-        # PyPy on macos seems to be failing; see https://github.com/joerick/cibuildwheel/issues/402
-        CIBW_BUILD: "cp36-* cp37-* cp38-* cp39-*"
-        # Run before build
+    - uses: actions/checkout@v2
+
+    - name: Build wheels
+      uses: pypa/cibuildwheel@v2.1.1
+      env:
+        # From rio-color here:
+        # https://github.com/mapbox/rio-color/blob/0ab59ad8e2db99ad1d0c8bd8c2e4cf8d0c3114cf/appveyor.yml#L3
+        # Skip Python 3.10 until officially released, as numpy wheels aren't yet
+        # available
+        CIBW_SKIP: "cp2* cp35* cp310* pp* *-win32 *-manylinux_i686"
+        CIBW_ARCHS_MACOS: x86_64 arm64 universal2
         CIBW_BEFORE_BUILD: python -m pip install numpy Cython
-        # CIBW_BEFORE_TEST: python -m pip install numpy Cython '.[test]'
-        # # run the package tests using `pytest`
-        # CIBW_TEST_COMMAND: pytest
-
-    - uses: actions/setup-python@v1
-      name: Install Python
-      with:
-        python-version: '3.7'
-
-    - name: Install cibuildwheel
-      run: |
-        python -m pip install cibuildwheel==1.4.2
-
-    - name: Install Visual C++ for Python 2.7
-      if: startsWith(matrix.os, 'windows')
-      run: |
-        choco install vcpython27 -f -y
-
-    - name: Build wheel
-      run: |
-        python -m cibuildwheel --output-dir wheelhouse
 
     - uses: actions/upload-artifact@v2
       with:
@@ -60,7 +41,7 @@ jobs:
       - uses: actions/setup-python@v2
         name: Install Python
         with:
-          python-version: '3.7'
+          python-version: '3.8'
 
       - name: Install dependencies
         run: |