Don't throw an error when we're in a sphinx build

docs/CMakeLists.txt

@@ -22,11 +22,11 @@ set(SPHINX_SOURCE ${CMAKE_CURRENT_SOURCE_DIR}/source)
 set(SPHINX_BUILD ${CMAKE_CURRENT_BINARY_DIR}/html)
 
 add_custom_target(${PROJECT_NAME}_docs ALL
-                  COMMAND
-                  BUILD_DIR=${CMAKE_CURRENT_BINARY_DIR}
-                  ${SPHINX_EXECUTABLE} -b html -j auto -T
-                  ${SPHINX_SOURCE} ${SPHINX_BUILD}
-                  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
-                  COMMENT "Generating documentation with Sphinx")
+    COMMAND
+    BUILD_DIR=${CMAKE_CURRENT_BINARY_DIR}
+    MORPHEUS_IN_SPHINX_BUILD=1 ${SPHINX_EXECUTABLE} -b html -j auto -T
+    ${SPHINX_SOURCE} ${SPHINX_BUILD}
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    COMMENT "Generating documentation with Sphinx")
 
 list(POP_BACK CMAKE_MESSAGE_CONTEXT)

morpheus/_lib/src/utilities/cudf_util.cpp

@@ -25,6 +25,7 @@
 #include <pybind11/gil.h>
 #include <pybind11/pybind11.h>
 
+#include <cstdlib>  // for getenv
 #include <memory>
 #include <ostream>  // Needed for logging
 #include <utility>  // for move
@@ -41,10 +42,14 @@ void CudfHelper::load()
 {
     if (import_morpheus___lib__cudf_helpers() != 0)
     {
-        pybind11::error_already_set ex;
-
-        LOG(ERROR) << "Could not load cudf_helpers library: " << ex.what();
-        throw ex;
+        // Only log/throw if we are not in a sphinx build
+        if (std::getenv("MORPHEUS_IN_SPHINX_BUILD") == nullptr)
+        {
+            pybind11::error_already_set ex;
+
+            LOG(ERROR) << "Could not load cudf_helpers library: " << ex.what();
+            throw ex;
+        }
     }
 }