Perform the :ref:
CTest Update Step as a :ref:
ctest_update([SOURCE <source-dir>] [RETURN_VALUE <result-var>] [QUIET])
Update the source tree from version control and record results in
Update.xml for submission with the :command:
The options are:
Specify the source directory. If not given, the
CTEST_SOURCE_DIRECTORY variable is used.
Store in the
<result-var> variable the number of files
-1 on error.
Tell CTest to suppress most non-error messages that it would
have otherwise printed to the console. CTest will still report
the new revision of the repository and any conflicting files
that were found.
The update always follows the version control branch currently checked
out in the source directory. See the :ref:
CTest Update Step
documentation for more information.