Add macOS/i86 wheels

PiperOrigin-RevId: 932631343

Author: dmitriplotnikov

release/pyproject.toml

@@ -54,6 +54,7 @@ container-engine = "docker; disable_host_mount: True"
 before-all = "git config --global http.sslVerify false && echo 'Installing bazelisk' && cp {project}/bazelisk-linux-amd64 /usr/local/bin/bazel"
 
 [tool.cibuildwheel.macos]
+archs = ["x86_64", "arm64"]
 before-all = "echo 'Installing bazelisk'; brew install bazelisk"
 
 [tool.cibuildwheel.windows]

release/setup.py

@@ -16,6 +16,7 @@
 
 import glob
 import os
+import platform
 import re
 import shutil
 import subprocess
@@ -113,6 +114,12 @@ def build_extension(self, ext):
 
     print(f'Copying {found} to {dest_path}')
     shutil.copyfile(found, dest_path)
+    if sys.platform == 'darwin':
+      try:
+        print(f'Checking file architecture for {dest_path}:')
+        subprocess.call(['file', dest_path])
+      except Exception as e:
+        print(f'Failed to run file command: {e}')
 
   def platform_config_windows(self, cmd, python_version):
     """Applies Windows-specific Bazel workarounds for Hermetic Python."""
@@ -163,6 +170,24 @@ def platform_config_macos(self, cmd):
     """Applies macOS-specific Bazel configurations."""
     cmd.extend(['--macos_minimum_os=10.13', '--cxxopt=-faligned-allocation'])
 
+    archflags = os.environ.get('ARCHFLAGS', '')
+    if 'x86_64' in archflags:
+      target_arch = 'x86_64'
+    elif 'arm64' in archflags:
+      target_arch = 'arm64'
+    else:
+      machine = platform.machine()
+      if machine in ('AMD64', 'x86_64'):
+        target_arch = 'x86_64'
+      elif machine in ('arm64', 'aarch64'):
+        target_arch = 'arm64'
+      else:
+        target_arch = machine
+
+    print(f'Target architecture for macOS: {target_arch}')
+    cmd.append(f'--macos_cpus={target_arch}')
+    cmd.append(f'--cpu=darwin_{target_arch}')
+
 
 setuptools.setup(
     name='cel-expr-python',