Wheels are empty

[thewtex]

When it comes to make the wheel contents on the release branch for v5.4rc02, CMake is spitting out warnings about empty variables related to the ITK_MODULE_*_GROUP variables.

It is likely that this code has issues:

ITKPythonPackage/cmake/ITKPythonPackage.cmake

Lines 34 to 35 in 4936bcc

	file( STRINGS ${_module_file} _module_line REGEX "itk_module[ \n]*\\([ \n]*[A-Za-z0-9]*" )
	string( REGEX MATCH "(\\([ \n]*)([A-Za-z0-9]*)" _module_name ${_module_line} )

That was similarly addressed in:

InsightSoftwareConsortium/ITK@6384cd0

CC @jcfr

[jcfr]

Since the macro ipp_set_itk_groups does not seem to be used, the issue is likely somewhere else.

[jcfr]

Problematic code is likely this one:

ITKPythonPackage/CMakeLists.txt

Lines 438 to 449 in 4936bcc

	# Set ``ITK_MODULE_<modulename>_GROUP`` variables
	foreach(group IN LISTS ITK_GROUPS)
	file( GLOB_RECURSE _${group}_module_files ${ITK_SOURCE_DIR}/Modules/${group}/itk-module.cmake )
	foreach( _module_file ${_${group}_module_files} )
	file( STRINGS ${_module_file} _module_line REGEX "itk_module[ \n]*\\([ \n]*[A-Za-z0-9]*" )
	string( REGEX MATCH "(\\([ \n]*)([A-Za-z0-9]*)" _module_name ${_module_line} )
	set( _module_name ${CMAKE_MATCH_2} )
	set( _${_module_name}_module_line ${_module_line} )
	list( APPEND _${group}_module_list ${_module_name} )
	set(ITK_MODULE_${_module_name}_GROUP ${group})
	endforeach()
	endforeach()

[jcfr]

Regression was introduced in InsightSoftwareConsortium/ITK@efa7495 as it broke the assumption that the module name was on the same line as the itk_module call.