feat: add iOS support

.github/workflows/benchmark.yml

@@ -33,7 +33,7 @@ jobs:
           submodules: recursive
 
       - name: Build wheel
-        uses: pypa/cibuildwheel@v2.23.3
+        uses: pypa/cibuildwheel@v3.0.0b1
         env:
           CIBW_ARCHS: "${{ matrix.archs }}"
           CIBW_BUILD: "cp312-${{ matrix.build }}*"

.github/workflows/build-upload.yml

@@ -50,6 +50,12 @@ jobs:
           - platform: "macos"
             archs: "arm64"
             runs-on: macos-14
+          - platform: "ios"
+            archs: "x86_64_iphonesimulator"
+            runs-on: macos-13
+          - platform: "ios"
+            archs: "arm64_iphonesimulator,arm64_iphoneos"
+            runs-on: macos-14
 
     steps:
       - name: Set git to use LF
@@ -65,6 +71,14 @@ jobs:
         uses: docker/[email protected]
         if: runner.os == 'Linux' && runner.arch == 'X64'
 
+      - name: Install cmake
+        if: runner.os == 'macOS'
+        run: |
+          # workaround https://gitlab.kitware.com/cmake/cmake/-/issues/26570
+          pipx install -f cmake
+          which cmake
+          cmake --version
+
       # see https://cibuildwheel.pypa.io/en/stable/faq/#macos-building-cpython-38-wheels-on-arm64
       - name: "Install python 3.8 universal2 on macOS arm64"
         if: runner.os == 'macOS' && runner.arch == 'ARM64'
@@ -75,7 +89,7 @@ jobs:
           python-version: 3.8
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.23.3
+        uses: pypa/cibuildwheel@v3.0.0b1
         env:
           CIBW_ARCHS: "${{ matrix.archs }}"
           CIBW_BUILD: "${{ matrix.build && '*-' || ''}}${{ matrix.build }}*"
@@ -132,8 +146,10 @@ jobs:
           path: dist
           merge-multiple: true
       - run: |
+          set -x
           WHEEL_COUNT=$(find dist -name '*.whl' | wc -l)
-          test ${WHEEL_COUNT} -eq 142
+          EXPECTED_WHEEL_COUNT=${{ startsWith(github.ref, 'refs/tags/v') && '145' || '179' }}
+          test ${WHEEL_COUNT} -eq ${EXPECTED_WHEEL_COUNT}
           pipx run twine check --strict dist/*
 
   upload_test_pypi:

pyproject.toml

@@ -4,9 +4,11 @@ build-backend = "setuptools.build_meta"
 
 [tool.cibuildwheel]
 build-verbosity = 1
-enable = ["cpython-freethreading", "pypy"]
+enable = ["cpython-freethreading", "pypy", "pypy-eol"]
 test-requires = "-r requirements-test.txt"
-test-command = "pytest {project}/tests"
+test-sources = ["conftest.py", "pyproject.toml", "tests"]
+test-command = "python -m pytest"
+xbuild-tools = ["cmake"]
 manylinux-i686-image = "manylinux2014"
 manylinux-pypy_i686-image = "manylinux2014"
 manylinux-x86_64-image = "manylinux_2_28"

setup.py

@@ -19,6 +19,7 @@
 IS_64BIT = sys.maxsize > 2**32
 IS_WINDOWS = sys.platform.startswith("win32")
 IS_MACOS = sys.platform.startswith("darwin")
+IS_IOS = sys.platform.startswith("ios")
 
 log = logging.getLogger("pybase64-setup")
 
@@ -97,7 +98,7 @@ def get_cmake_extra_config(plat_name: str | None, build_type: str) -> tuple[bool
             extra_config.append("-A Win32")
         if platform == "win-arm64" and machine != "arm64":
             extra_config.append("-A ARM64")
-    elif IS_MACOS:
+    elif IS_MACOS or IS_IOS:
         known_archs = {
             "arm64",
             "arm64e",
@@ -108,10 +109,18 @@ def get_cmake_extra_config(plat_name: str | None, build_type: str) -> tuple[bool
             "ppc",
             "ppc64",
         }
-        if not platform.startswith("macosx-"):
+        if not platform.startswith(("macosx-", "ios-")):
             msg = f"Building {platform} is not supported on macOS"
             raise ValueError(msg)
-        _, _, platform_arch = platform.split("-")
+        if IS_IOS:
+            _, min_ver, platform_arch, sdk = platform.split("-")
+            min_ver = os.getenv("IPHONEOS_DEPLOYMENT_TARGET", min_ver)
+            extra_config.append("-DCMAKE_SYSTEM_NAME=iOS")
+            extra_config.append(f"-DCMAKE_OSX_SYSROOT={sdk}")
+        else:
+            _, min_ver, platform_arch = platform.split("-")
+            min_ver = os.getenv("MACOSX_DEPLOYMENT_TARGET", min_ver)
+        extra_config.append(f"-DCMAKE_OSX_DEPLOYMENT_TARGET={min_ver}")
         if platform_arch.startswith(("universal", "fat")):
             msg = f"multiple arch `{platform_arch}` is not supported"
             raise ValueError(msg)
@@ -153,6 +162,7 @@ def base64_build(plat_name: str | None) -> Generator[bool, None, None]:
         "-DBASE64_BUILD_TESTS:BOOL=OFF",
         "-DBASE64_BUILD_CLI:BOOL=OFF",
         "-DCMAKE_POSITION_INDEPENDENT_CODE=ON",
+        "-DBUILD_SHARED_LIBS:BOOL=OFF",
     ]
     if build_dir.exists():
         shutil.rmtree(build_dir)

tests/test_main.py

@@ -138,6 +138,7 @@ def test_decode(
     assert captured.out == b"hello world !/?\n"
 
 
+@pytest.mark.skipif(sys.platform.startswith("ios"), reason="subprocess not supported")
 def test_subprocess() -> None:
     import subprocess