Add missing variables to pre-configured packages

rapids-cmake/cpm/rmm.cmake

@@ -21,10 +21,10 @@ rapids_cpm_rmm
 
 .. versionadded:: v21.10.00
 
-Allow projects to find or build `rmm` via `CPM` with built-in
+Allow projects to find or build `RMM` via `CPM` with built-in
 tracking of these dependencies for correct export support.
 
-Uses the current rapids-cmake version of rmm `as specified in the version file <cpm_versions>`
+Uses the current rapids-cmake version of RMM `as specified in the version file <cpm_versions>`
 for  consistency across all RAPIDS projects.
 
 .. code-block:: cmake
@@ -42,13 +42,19 @@ for  consistency across all RAPIDS projects.
   our install directory export set.
 
 .. note::
-  Installation of rmm will always occur when it is built as a subcomponent of the
+  Installation of RMM will always occur when it is built as a subcomponent of the
   calling project.
 
 Result Targets
 ^^^^^^^^^^^^^^
   rmm::rmm target will be created
 
+Result Variables
+^^^^^^^^^^^^^^^^
+  :cmake:variable:`rmm_SOURCE_DIR` is set to the path to the source directory of RMM.
+  :cmake:variable:`rmm_BINAR_DIR`  is set to the path to the build directory of  RMM.
+  :cmake:variable:`rmm_ADDED`      is set to a true value if RMM has not been added before.
+
 #]=======================================================================]
 function(rapids_cpm_rmm)
   list(APPEND CMAKE_MESSAGE_CONTEXT "rapids.cpm.rmm")
@@ -71,5 +77,10 @@ function(rapids_cpm_rmm)
                   GIT_SHALLOW ${shallow}
                   OPTIONS "BUILD_TESTS OFF" "BUILD_BENCHMARKS OFF")
 
+  # Propagate up variables that CPMFindPackage provide
+  set(rmm_SOURCE_DIR "${rmm_SOURCE_DIR}" PARENT_SCOPE)
+  set(rmm_BINARY_DIR "${rmm_BINARY_DIR}" PARENT_SCOPE)
+  set(rmm_ADDED "${rmm_ADDED}" PARENT_SCOPE)
+
   # rmm creates the correct namespace aliases
 endfunction()

rapids-cmake/cpm/spdlog.cmake

@@ -49,6 +49,12 @@ Result Targets
 ^^^^^^^^^^^^^^
   spdlog::spdlog, spdlog::spdlog_header_only targets will be created
 
+Result Variables
+^^^^^^^^^^^^^^^^
+  :cmake:variable:`spdlog_SOURCE_DIR` is set to the path to the source directory of spdlog.
+  :cmake:variable:`spdlog_BINAR_DIR`  is set to the path to the build directory of  spdlog.
+  :cmake:variable:`spdlog_ADDED`      is set to a true value if spdlog has not been added before.
+
 #]=======================================================================]
 function(rapids_cpm_spdlog)
   list(APPEND CMAKE_MESSAGE_CONTEXT "rapids.cpm.spdlog")
@@ -69,4 +75,10 @@ function(rapids_cpm_spdlog)
                   GIT_SHALLOW ${shallow}
                   OPTIONS "spdlog_INSTALL ${to_install}")
 
+  # Propagate up variables that CPMFindPackage provide
+  set(spdlog_SOURCE_DIR "${spdlog_SOURCE_DIR}" PARENT_SCOPE)
+  set(spdlog_BINARY_DIR "${spdlog_BINARY_DIR}" PARENT_SCOPE)
+  set(spdlog_ADDED "${spdlog_ADDED}" PARENT_SCOPE)
+
+  # spdlog creates the correct namespace aliases
 endfunction()

rapids-cmake/cpm/thrust.cmake

@@ -54,6 +54,12 @@ Result Targets
 ^^^^^^^^^^^^^^
   <namespace>::Thrust target will be created
 
+Result Variables
+^^^^^^^^^^^^^^^^
+  :cmake:variable:`Thrust_SOURCE_DIR` is set to the path to the source directory of Thrust.
+  :cmake:variable:`Thrust_BINAR_DIR`  is set to the path to the build directory of  Thrust.
+  :cmake:variable:`Thrust_ADDED`      is set to a true value if Thrust has not been added before.
+
 #]=======================================================================]
 function(rapids_cpm_thrust NAMESPACE namespaces_name)
   list(APPEND CMAKE_MESSAGE_CONTEXT "rapids.cpm.thrust")
@@ -79,4 +85,9 @@ function(rapids_cpm_thrust NAMESPACE namespaces_name)
     thrust_create_target(${namespaces_name}::Thrust FROM_OPTIONS)
   endif()
 
+# Propagate up variables that CPMFindPackage provide
+  set(Thrust_SOURCE_DIR "${Thrust_SOURCE_DIR}" PARENT_SCOPE)
+  set(Thrust_BINARY_DIR "${Thrust_BINARY_DIR}" PARENT_SCOPE)
+  set(Thrust_ADDED "${Thrust_ADDED}" PARENT_SCOPE)
+
 endfunction()