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cmake/Help/command/get_source_file_property.rst

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get_source_file_property
------------------------
Get a property for a source file.
.. code-block:: cmake
get_source_file_property(<variable> <file>
[DIRECTORY <dir> | TARGET_DIRECTORY <target>]
<property>)
Gets a property from a source file. The value of the property is stored in
the specified ``<variable>``. If the ``<file>`` is not a source file, or the
source property is not found, ``<variable>`` will be set to ``NOTFOUND``.
If the source property was defined to be an ``INHERITED`` property (see
:command:`define_property`), the search will include the relevant parent
scopes, as described for the :command:`define_property` command.
By default, the source file's property will be read from the current source
directory's scope.
.. versionadded:: 3.18
Directory scope can be overridden with one of the following sub-options:
``DIRECTORY <dir>``
The source file property will be read from the ``<dir>`` directory's
scope. CMake must already know about that source directory, either by
having added it through a call to :command:`add_subdirectory` or ``<dir>``
being the top level source directory. Relative paths are treated as
relative to the current source directory.
``TARGET_DIRECTORY <target>``
The source file property will be read from the directory scope in which
``<target>`` was created (``<target>`` must therefore already exist).
Use :command:`set_source_files_properties` to set property values. Source
file properties usually control how the file is built. One property that is
always there is :prop_sf:`LOCATION`.
.. note::
The :prop_sf:`GENERATED` source file property may be globally visible.
See its documentation for details.
See Also
^^^^^^^^
* :command:`define_property`
* the more general :command:`get_property` command
* :command:`set_source_files_properties`