CMAKE_ROLE

New in version 3.14.

Tells what mode the current running script is in. Could be one of several values:

PROJECT: Running in project mode (processing a CMakeLists.txt file).
SCRIPT: Running in -P script mode.
FIND_PACKAGE: Running in --find-package mode.
CTEST: Running in CTest script mode.
CPACK: Running in CPack.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.23/prop_gbl/CMAKE_ROLE.html