ENH: macOS remote module scikit-build-core support

In ITK 5.4 RC3, we provide macOS swig binaries. The path in the
distribution has changed and is more complex -- just fetch the binaries
at build time.

Continue to support setup.py from scikit-build classic, but use
scikit-build-core with the Stable ABI when setup.py has been migrated to
pyproject.toml.

Author: thewtex

scripts/macpython-build-common.sh

@@ -15,7 +15,7 @@ usage()
   echo "Usage:
   macpython-build-common
     [ -h | --help ]           show usage
-    [ -c | --cmake_options ]  space-separated string of CMake options to forward to the module (e.g. \"-DBUILD_TESTING=OFF\")
+    [ -c | --cmake_options ]  space-separated string of CMake options to forward to the module (e.g. \"--config-setting=cmake.define.BUILD_TESTING=OFF\")
     [ -- python_versions ]        build wheel for a specific python version(s). (e.g. -- 3.9 3.10)"
   exit 2
 }

scripts/macpython-build-module-wheels.sh

@@ -62,6 +62,13 @@ VENVS=()
 source "${script_dir}/macpython-build-common.sh"
 # -----------------------------------------------------------------------
 
+if test -e setup.py; then
+  use_skbuild_classic=true
+else
+  use_skbuild_classic=false
+fi
+
+
 VENV="${VENVS[0]}"
 Python3_EXECUTABLE=${VENV}/bin/python3
 ${Python3_EXECUTABLE} -m pip install --no-cache delocate
@@ -81,6 +88,11 @@ for VENV in "${VENVS[@]}"; do
     echo "Python3_EXECUTABLE:${Python3_EXECUTABLE}"
     echo "Python3_INCLUDE_DIR:${Python3_INCLUDE_DIR}"
 
+    if $use_skbuild_classic; then
+      # So older remote modules with setup.py continue to work
+      ${Python3_EXECUTABLE} -m pip install --upgrade scikit-build
+    fi
+
     if [[ $(arch) == "arm64" ]]; then
       plat_name="macosx-11.0-arm64"
       osx_target="11.0"
@@ -95,26 +107,51 @@ for VENV in "${VENVS[@]}"; do
     if [[ ! -z "${MACOSX_DEPLOYMENT_TARGET}" ]]; then
       osx_target="${MACOSX_DEPLOYMENT_TARGET}"
     fi
+    export MACOSX_DEPLOYMENT_TARGET=${osx_target}
 
     if [[ -e $PWD/requirements-dev.txt ]]; then
       ${Python3_EXECUTABLE} -m pip install --upgrade -r $PWD/requirements-dev.txt
     fi
     itk_build_path="${build_path}"
-    ${Python3_EXECUTABLE} setup.py bdist_wheel --build-type Release --plat-name ${plat_name} -G Ninja -- \
-      -DCMAKE_MAKE_PROGRAM:FILEPATH=${NINJA_EXECUTABLE} \
-      -DITK_DIR:PATH=${itk_build_path} \
-      -DCMAKE_INSTALL_LIBDIR:STRING=lib \
-      -DITK_USE_SYSTEM_SWIG:BOOL=ON \
-      -DWRAP_ITK_INSTALL_COMPONENT_IDENTIFIER:STRING=PythonWheel \
-      -DSWIG_EXECUTABLE:FILEPATH=${itk_build_path}/Wrapping/Generators/SwigInterface/swig/bin/swig \
-      -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=${osx_target} \
-      -DCMAKE_OSX_ARCHITECTURES:STRING=${osx_arch} \
-      -DBUILD_TESTING:BOOL=OFF \
-      -DPython3_EXECUTABLE:FILEPATH=${Python3_EXECUTABLE} \
-      -DPython3_INCLUDE_DIR:PATH=${Python3_INCLUDE_DIR} \
-      ${CMAKE_OPTIONS} \
-    || exit 1
-    # rm -r ${SKBUILD_DIR} # Permission denied
+    if $use_skbuild_classic; then
+      ${Python3_EXECUTABLE} setup.py bdist_wheel --build-type Release --plat-name ${plat_name} -G Ninja -- \
+        -DCMAKE_MAKE_PROGRAM:FILEPATH=${NINJA_EXECUTABLE} \
+        -DITK_DIR:PATH=${itk_build_path} \
+        -DCMAKE_INSTALL_LIBDIR:STRING=lib \
+        -DWRAP_ITK_INSTALL_COMPONENT_IDENTIFIER:STRING=PythonWheel \
+        -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=${osx_target} \
+        -DCMAKE_OSX_ARCHITECTURES:STRING=${osx_arch} \
+        -DBUILD_TESTING:BOOL=OFF \
+        -DPython3_EXECUTABLE:FILEPATH=${Python3_EXECUTABLE} \
+        -DPython3_INCLUDE_DIR:PATH=${Python3_INCLUDE_DIR} \
+        ${CMAKE_OPTIONS} \
+      || exit 1
+    else
+      py_minor=$(echo $py_mm | cut -d '.' -f 2)
+      wheel_py_api=""
+      if test $py_minor -ge 11; then
+        wheel_py_api=cp3$py_minor
+      fi
+      ${Python3_EXECUTABLE} -m build \
+        --verbose \
+        --wheel \
+        --outdir dist \
+        --no-isolation \
+        --skip-dependency-check \
+        --config-setting=cmake.define.CMAKE_MAKE_PROGRAM:FILEPATH=${NINJA_EXECUTABLE} \
+        --config-setting=cmake.define.ITK_DIR:PATH=${itk_build_path} \
+        --config-setting=cmake.define.CMAKE_INSTALL_LIBDIR:STRING=lib \
+        --config-setting=cmake.define.WRAP_ITK_INSTALL_COMPONENT_IDENTIFIER:STRING=PythonWheel \
+        --config-setting=cmake.define.CMAKE_OSX_DEPLOYMENT_TARGET:STRING=${osx_target} \
+        --config-setting=cmake.define.CMAKE_OSX_ARCHITECTURES:STRING=${osx_arch} \
+        --config-setting=cmake.define.PY_SITE_PACKAGES_PATH:PATH="." \
+        --config-setting=wheel.py-api=$wheel_py_api \
+        --config-setting=cmake.define.BUILD_TESTING:BOOL=OFF \
+        --config-setting=cmake.define.Python3_EXECUTABLE:FILEPATH=${Python3_EXECUTABLE} \
+        --config-setting=cmake.define.Python3_INCLUDE_DIR:PATH=${Python3_INCLUDE_DIR} \
+        ${CMAKE_OPTIONS} \
+      || exit 1
+    fi
 done
 
 for wheel in $PWD/dist/*.whl; do