Build and test CPython x86_64 Linux wheels

.github/workflows/ci.yml

@@ -49,3 +49,15 @@ jobs:
       - name: Run benchmark
         working-directory: ./benchmark
         run: python benchmark.py
+  build_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        # TODO: build wheels on other platforms
+        # os: [ubuntu-20.04, windows-2019, macos-11]
+        os: [ ubuntu-20.04 ]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Build wheels
+        uses: pypa/cibuildwheel@v2.12.0

.gitignore

@@ -9,3 +9,5 @@ __pycache__
 .eggs
 wheelhouse
 .DS_Store
+.envrc
+.python-version

pyproject.toml

@@ -0,0 +1,12 @@
+[tool.cibuildwheel.linux]
+# Only build CPython (no PyPy) on x86_64 architecture
+build = "cp*x86_64"
+before-all = [
+    # Install Zig on CentOS
+    "cd /tmp",
+    "curl -O https://ziglang.org/download/0.9.1/zig-linux-x86_64-0.9.1.tar.xz",
+    "tar xf zig-linux-x86_64-0.9.1.tar.xz",
+    "mv zig-linux-x86_64-0.9.1 /usr/local/bin/zig-linux-0.9.1"
+]
+environment = { PATH="$PATH:/usr/local/bin/zig-linux-0.9.1" }
+test-command = 'python -c "import zaml; assert zaml.load() == 1"'