build: fix library/binary output path

pyproject.toml.in

@@ -60,6 +60,7 @@ cmake.verbose = @NURI_VERBOSE_CMAKE@
 
 sdist.exclude = ["*.h", "*.cpp", "*.in", "*.so"]
 wheel.packages = ["python/src/nuri"]
+wheel.install-dir = "nuri"
 
 [tool.scikit-build.cmake.define]
 NURI_BUILD_PYTHON = "ON"

python/src/CMakeLists.txt

@@ -3,12 +3,12 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
-function(nuri_python_add_module name directory)
+function(nuri_python_add_module name subdir)
   set(target_name "nuri_python${name}")
 
   file(RELATIVE_PATH dir_inv
-    "${CMAKE_CURRENT_LIST_DIR}/${directory}"
-    "${CMAKE_CURRENT_LIST_DIR}/")
+    "${CMAKE_CURRENT_LIST_DIR}/nuri/${subdir}"
+    "${CMAKE_CURRENT_LIST_DIR}/nuri/")
 
   pybind11_add_module("${target_name}" OPT_SIZE "${ARGN}")
   target_link_libraries("${target_name}" PRIVATE nuri_lib)
@@ -23,23 +23,23 @@ function(nuri_python_add_module name directory)
   if(NOT SKBUILD)
     set_target_properties("${target_name}"
       PROPERTIES
-      LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_LIST_DIR}/${directory}")
+      LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_LIST_DIR}/nuri/${subdir}")
   endif()
 
   install(TARGETS "${target_name}"
     LIBRARY
-    DESTINATION "./${directory}")
+    DESTINATION "./${subdir}")
 
   add_dependencies(nuri_python "${target_name}")
 endfunction()
 
 add_custom_target(nuri_python)
 add_dependencies(nuri_python nuri_lib)
 
-nuri_python_add_module(_log_interface "nuri" "nuri/_log_interface.cpp")
+nuri_python_add_module(_log_interface "" "nuri/_log_interface.cpp")
 target_link_libraries(nuri_python_log_interface PRIVATE absl::log_initialize)
 
-nuri_python_add_module(_core "nuri/core"
+nuri_python_add_module(_core "core"
   nuri/core/_core.cpp
   nuri/core/containers.cpp
   nuri/core/element.cpp