Release Installer size is larger than expected

[jcfr]

Description

The size of the installer (843MB vs 215MB) is partially explained by the fact the MNI atlas is now shipped with the application. We noticed that the install rules were installing the complete download folders instead of selectively installing the relevant MNI files.

See https://github.com/BICCN/cell-locator/releases

Screenshots

[jcfr]

the install rules for the data files are implemented here:

cell-locator/Modules/Scripted/Home/CMakeLists.txt

Lines 80 to 86 in 5e4c394

	function(CellLocator_install_datafiles datafile)
	install(
	FILES ${datafile} ${ARGN}
	DESTINATION "${Slicer_INSTALL_QTSCRIPTEDMODULES_LIB_DIR}/"
	COMPONENT RuntimeLibraries
	)
	endfunction()

That said the problem is related to the install rule of the scripted modules.

Indeed, the content of the D:\D\P\CL-0-build\Slicer-build\E\Modules\Scripted\Home\cmake_install.cmake file generated is the following. Despite of selectively listing the data files, the parent folder is systematically copied.

[...]

if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xRuntimeLibrariesx" OR NOT CMAKE_INSTALL_COMPONENT)
  file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/./lib/CellLocator-4.13/qt-scripted-modules" TYPE DIRECTORY FILES "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/" USE_SOURCE_PERMISSIONS)
endif()

if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xRuntimeLibrariesx" OR NOT CMAKE_INSTALL_COMPONENT)
  file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/./lib/CellLocator-4.13/qt-scripted-modules" TYPE FILE FILES
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf_average_template_25.nrrd"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf_annotation_25_contiguous.nrrd"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf_annotation_color_table.txt"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf_annotation_color_allen2slicer_mapping.json"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf_annotation_color_slicer2allen_mapping.json"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf-ontology-formatted.json"
    )
endif()

if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xRuntimeLibrariesx" OR NOT CMAKE_INSTALL_COMPONENT)
  file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/./lib/CellLocator-4.13/qt-scripted-modules" TYPE FILE FILES
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/mni_icbm152_t1_tal_nlin_sym_09b_hires.nii"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/mni_annotation_contiguous.nrrd"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/mni_annotation_color_table.txt"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/mni_annotation_color_allen2slicer_mapping.json"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/mni_annotation_color_slicer2allen_mapping.json"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/mni-ontology-formatted.json"
    )
endif()

if("x${CMAKE_INSTALL_COMPONENT}x" STREQUAL "xRuntimeLibrariesx" OR NOT CMAKE_INSTALL_COMPONENT)
  file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/./lib/CellLocator-4.13/qt-scripted-modules" TYPE FILE FILES
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf_annotation_layer_color_table.txt"
    "D:/D/P/CL-0-build/Slicer-build/lib/CellLocator-4.13/qt-scripted-modules/CellLocatorData/ccf-layer-ontology-formatted.json"
    )
endif()

[jcfr]

The macro responsible for installing the module is slicerMacroBuildScriptedModule:

cell-locator/Modules/Scripted/Home/CMakeLists.txt

Lines 33 to 38 in 5e4c394

	slicerMacroBuildScriptedModule(
	NAME ${MODULE_NAME}
	SCRIPTS ${MODULE_PYTHON_SCRIPTS} ${MODULE_PYTHON_QRC_RESOURCES}
	RESOURCES ${MODULE_PYTHON_RESOURCES}
	WITH_GENERIC_TESTS
	)

and looking at the implementation, we can observe that the directory is always installed:

https://github.com/KitwareMedical/Slicer/blob/7fde09a0168d0b2e6f2a12ad01a18ac2889da7a1/CMake/SlicerMacroBuildScriptedModule.cmake#L105-L106

Fixing ctkMacroCompilePythonScript used in slicerMacroBuildScriptedModule to explicitly install each files would be ideal.

But since this may be a more involved change, we could look into few approaches:

• Check why the sub directory are installed ... this is seems to be a "bug" because we do not pass the WITH_SUBDIR to slicerMacroBuildScriptedModule

• Update slicerMacroBuildScriptedModule to add a NO_INSTALL to fully skip the install of script and instead explicitly install relevant scripts.

References:

• https://github.com/commontk/CTK/blob/a7a4415d4b8276d5877c7262d72910f536a1cabb/CMake/ctkMacroCompilePythonScript.cmake#L91-L93