[CMake] Setting permissions with CPack/WiX installer

[Cook, Steven (G&I)]

Hi all,

I would like to set the permissions on some files and directories in my WiX installer. It looks like the CPACK_WIX_ACL property should be suitable, but I can't get it to work. There are examples of its usage in this project:
https://github.com/ngladitz/cmake-wix-testsuite/tree/master/properties

Typically something like this:
  set_property(INSTALL
    empty_directory_with_property
    non_empty_directory_with_property
    PROPERTY CPACK_WIX_ACL "Everyone=GenericRead,GenericWrite,CreateFile"
  )

but this example doesn't work for me with cmake 3.14.0. None of the .wxs files that are produced contain the expected Permission property. After adding some debugging to cmake, I found that cmCPackWIXGenerator::AddDirectoryAndFileDefinitions calls GetInstalledFile, which always returns NULL. This prevents the ACL from being applied.

As an alternative, I've tried to use CPACK_WIX_PATCH_FILE to specify the Permission property for the relevant fragments, but the patch does not get applied to the fragments where directories are created. In any case, I think CPACK_WIX_ACL would be preferable if I could get it to work.

Can anyone provide a minimal working example that uses CPACK_WIX_ACL?

Thanks
Steve
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