mac arm64 build (#338)

Author: andygrove

.github/workflows/build.yml

@@ -99,6 +99,58 @@ jobs:
           name: dist
           path: target/wheels/*
 
+  build-macos-aarch64:
+    needs: [generate-license]
+    name: Mac arm64
+    runs-on: macos-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10"]
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+
+      - name: Set up Rust targets
+        run: rustup target add aarch64-apple-darwin
+
+      - name: Upgrade pip
+        run: python -m pip install --upgrade pip
+
+      - name: Install maturin
+        run: pip install maturin==0.14.2
+
+      - run: rm LICENSE.txt
+      - name: Download LICENSE.txt
+        uses: actions/download-artifact@v3
+        with:
+          name: python-wheel-license
+          path: .
+
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v1
+        with:
+          version: '3.x'
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build Python package
+        run: maturin build --release --strip --target aarch64-apple-darwin
+      - name: List Mac wheels
+        run: find target/wheels/
+
+      - name: Archive wheels
+        uses: actions/upload-artifact@v3
+        with:
+          name: dist
+          path: target/wheels/*
+
   build-manylinux:
     needs: [generate-license]
     name: Manylinux