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CMP0150
-------
.. versionadded:: 3.27
:command:`ExternalProject_Add` and :command:`FetchContent_Declare` commands
treat relative ``GIT_REPOSITORY`` paths as being relative to the parent
project's remote.
Earlier versions of these commands always treated relative paths in
``GIT_REPOSITORY`` as local paths, but the base directory it was treated
as relative to was both undocumented and unintuitive. The ``OLD`` behavior
for this policy is to interpret relative paths used for ``GIT_REPOSITORY``
as local paths relative to the following:
* The parent directory of ``SOURCE_DIR`` for :command:`ExternalProject_Add`.
* ``FETCHCONTENT_BASE_DIR`` for :command:`FetchContent_Declare`.
The ``NEW`` behavior is to determine the remote from the parent project and
interpret the path relative to that remote. The value of
:variable:`CMAKE_CURRENT_SOURCE_DIR` when :command:`ExternalProject_Add` or
:command:`FetchContent_Declare` is called determines the parent project.
The remote is selected according to the following (the first match is used):
* If the parent project is checked out on a branch with an upstream remote
defined, use that remote.
* If only one remote is defined, use that remote.
* If multiple remotes are defined and one of them is named ``origin``, use
``origin``'s remote but also issue a warning.
If an appropriate remote cannot be determined from the above, a fatal error
will be raised.
.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.27
.. |WARNS_OR_DOES_NOT_WARN| replace::
warns when a relative path is encountered
.. include:: include/STANDARD_ADVICE.rst
.. include:: include/DEPRECATED.rst
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