Merge remote-tracking branch 'origin/master' into macos-universal2

# Conflicts:
#	bin/sample_build.py
#	cibuildwheel/__main__.py
#	cibuildwheel/macos.py
#	cibuildwheel/util.py
#	cibuildwheel/windows.py

unit_test/main_tests/conftest.py

@@ -1,3 +1,4 @@
+import platform as platform_module
 import subprocess
 import sys
 from pathlib import Path
@@ -51,14 +52,27 @@ def fake_package_dir(monkeypatch):
         else:
             return real_path_exists(path)
 
+    args = ['cibuildwheel', str(MOCK_PACKAGE_DIR)]
     monkeypatch.setattr(Path, 'exists', mock_path_exists)
-    monkeypatch.setattr(sys, 'argv', ['cibuildwheel', str(MOCK_PACKAGE_DIR)])
+    monkeypatch.setattr(sys, 'argv', args)
+    return args
+
+
+@pytest.fixture
+def allow_empty(request, monkeypatch, fake_package_dir):
+    monkeypatch.setattr(sys, 'argv', fake_package_dir + ['--allow-empty'])
 
 
 @pytest.fixture(params=['linux', 'macos', 'windows'])
 def platform(request, monkeypatch):
     platform_value = request.param
     monkeypatch.setenv('CIBW_PLATFORM', platform_value)
+
+    if platform_value == 'windows':
+        monkeypatch.setattr(platform_module, 'machine', lambda: 'AMD64')
+    else:
+        monkeypatch.setattr(platform_module, 'machine', lambda: 'x86_64')
+
     return platform_value
 
 

unit_test/main_tests/main_options_test.py

@@ -40,7 +40,7 @@ def test_output_dir_argument(also_set_environment, platform, intercepted_build_a
     assert intercepted_build_args.args[0].output_dir == OUTPUT_DIR
 
 
-def test_build_selector(platform, intercepted_build_args, monkeypatch):
+def test_build_selector(platform, intercepted_build_args, monkeypatch, allow_empty):
     BUILD = 'some build* *-selector'
     SKIP = 'some skip* *-selector'
 
@@ -57,6 +57,15 @@ def test_build_selector(platform, intercepted_build_args, monkeypatch):
     # Unit tests for BuildSelector are in build_selector_test.py
 
 
+def test_empty_selector(platform, intercepted_build_args, monkeypatch):
+    monkeypatch.setenv('CIBW_SKIP', '*')
+
+    with pytest.raises(SystemExit) as e:
+        main()
+
+    assert e.value.code == 3
+
+
 @pytest.mark.parametrize('architecture, image, full_image', [
     ('x86_64', None, 'quay.io/pypa/manylinux2010_x86_64:*'),
     ('x86_64', 'manylinux1', 'quay.io/pypa/manylinux1_x86_64:*'),
@@ -220,7 +229,7 @@ def test_build_verbosity(build_verbosity, platform_specific, platform, intercept
     ('*-macosx_10_9_x86_64', ['*-macosx_x86_64']),
     ('cp37-macosx_10_9_x86_64', ['cp37-macosx_x86_64']),
 ])
-def test_build_selector_migrations(intercepted_build_args, monkeypatch, option_name, option_value, build_selector_patterns):
+def test_build_selector_migrations(intercepted_build_args, monkeypatch, option_name, option_value, build_selector_patterns, allow_empty):
     monkeypatch.setenv(option_name, option_value)
 
     main()

unit_test/main_tests/main_platform_test.py

@@ -1,4 +1,3 @@
-import platform as platform_module
 import sys
 
 import pytest
@@ -68,34 +67,39 @@ def test_platform_environment(platform, intercepted_build_args, monkeypatch):
 
 
 def test_archs_default(platform, intercepted_build_args, monkeypatch):
-    monkeypatch.setattr(platform_module, 'machine', lambda: 'x86_64')
 
     main()
     build_options = intercepted_build_args.args[0]
 
     if platform == 'linux':
         assert build_options.architectures == {Architecture.x86_64, Architecture.i686}
+    elif platform == 'windows':
+        assert build_options.architectures == {Architecture.AMD64, Architecture.x86}
     else:
         assert build_options.architectures == {Architecture.x86_64}
 
 
 @pytest.mark.parametrize('use_env_var', [False, True])
 def test_archs_argument(platform, intercepted_build_args, monkeypatch, use_env_var):
-    monkeypatch.setattr(platform_module, 'machine', lambda: 'x86_64')
+
     if use_env_var:
         monkeypatch.setenv('CIBW_ARCHS', 'ppc64le')
     else:
         monkeypatch.setenv('CIBW_ARCHS', 'unused')
         monkeypatch.setattr(sys, 'argv', sys.argv + ['--archs', 'ppc64le'])
 
-    main()
-    build_options = intercepted_build_args.args[0]
+    if platform in {'macos', 'windows'}:
+        with pytest.raises(SystemExit) as exit:
+            main()
+        assert exit.value.args == (4,)
 
-    assert build_options.architectures == {Architecture.ppc64le}
+    else:
+        main()
+        build_options = intercepted_build_args.args[0]
+        assert build_options.architectures == {Architecture.ppc64le}
 
 
 def test_archs_platform_specific(platform, intercepted_build_args, monkeypatch):
-    monkeypatch.setattr(platform_module, 'machine', lambda: 'x86_64')
     monkeypatch.setenv('CIBW_ARCHS', 'unused')
     monkeypatch.setenv('CIBW_ARCHS_LINUX', 'ppc64le')
     monkeypatch.setenv('CIBW_ARCHS_WINDOWS', 'x86')
@@ -110,3 +114,31 @@ def test_archs_platform_specific(platform, intercepted_build_args, monkeypatch):
         assert build_options.architectures == {Architecture.x86}
     elif platform == 'macos':
         assert build_options.architectures == {Architecture.x86_64}
+
+
+def test_archs_platform_native(platform, intercepted_build_args, monkeypatch):
+    monkeypatch.setenv('CIBW_ARCHS', 'native')
+
+    main()
+    build_options = intercepted_build_args.args[0]
+
+    if platform == 'linux':
+        assert build_options.architectures == {Architecture.x86_64}
+    elif platform == 'windows':
+        assert build_options.architectures == {Architecture.AMD64}
+    elif platform == 'macos':
+        assert build_options.architectures == {Architecture.x86_64}
+
+
+def test_archs_platform_all(platform, intercepted_build_args, monkeypatch):
+    monkeypatch.setenv('CIBW_ARCHS', 'all')
+
+    main()
+    build_options = intercepted_build_args.args[0]
+
+    if platform == 'linux':
+        assert build_options.architectures == {Architecture.x86_64, Architecture.i686, Architecture.aarch64, Architecture.ppc64le, Architecture.s390x}
+    elif platform == 'windows':
+        assert build_options.architectures == {Architecture.x86, Architecture.AMD64}
+    elif platform == 'macos':
+        assert build_options.architectures == {Architecture.x86_64}