path_finder tweaks (experiment)

cuda_bindings/cuda/bindings/_path_finder/find_nvidia_dynamic_library.py

@@ -5,7 +5,7 @@
 import glob
 import os
 
-from cuda.bindings._path_finder.find_sub_dirs import find_sub_dirs_all_sitepackages
+from cuda.bindings._path_finder.find_sub_dirs import find_sub_dirs, find_sub_dirs_all_sitepackages
 from cuda.bindings._path_finder.supported_libs import IS_WINDOWS, is_suppressed_dll_file
 
 
@@ -44,11 +44,14 @@ def _find_dll_under_dir(dirpath, file_wild):
 
 
 def _find_dll_using_nvidia_bin_dirs(libname, lib_searched_for, error_messages, attachments):
-    nvidia_sub_dirs = ("nvidia", "*", "nvvm", "bin") if libname == "nvvm" else ("nvidia", "*", "bin")
-    for bin_dir in find_sub_dirs_all_sitepackages(nvidia_sub_dirs):
-        dll_name = _find_dll_under_dir(bin_dir, lib_searched_for)
-        if dll_name is not None:
-            return dll_name
+    nvidia_sub_dirs_list = [("nvidia", "*", "bin")]
+    if libname == "nvvm":
+        nvidia_sub_dirs_list.append(("nvidia", "*", "nvvm", "bin"))
+    for nvidia_sub_dirs in nvidia_sub_dirs_list:
+        for bin_dir in find_sub_dirs_all_sitepackages(nvidia_sub_dirs):
+            dll_name = _find_dll_under_dir(bin_dir, lib_searched_for)
+            if dll_name is not None:
+                return dll_name
     _no_such_file_in_sub_dirs(nvidia_sub_dirs, lib_searched_for, error_messages, attachments)
     return None
 
@@ -65,19 +68,23 @@ def _find_lib_dir_using_cuda_home(libname):
     if cuda_home is None:
         return None
     if IS_WINDOWS:
-        subdirs = (os.path.join("nvvm", "bin"),) if libname == "nvvm" else ("bin",)
+        if libname == "nvvm":  # noqa: SIM108
+            subdirs_list = (
+                ("nvvm", "bin", "*"),
+                ("nvvm", "bin"),
+            )
+        else:
+            subdirs_list = (("bin",),)
     else:
-        subdirs = (
-            (os.path.join("nvvm", "lib64"),)
-            if libname == "nvvm"
-            else (
-                "lib64",  # CTK
-                "lib",  # Conda
+        if libname == "nvvm":  # noqa: SIM108
+            subdirs_list = (("nvvm", "lib64"),)
+        else:
+            subdirs_list = (
+                ("lib64",),  # CTK
+                ("lib",),  # Conda
             )
-        )
-    for subdir in subdirs:
-        dirname = os.path.join(cuda_home, subdir)
-        if os.path.isdir(dirname):
+    for sub_dirs in subdirs_list:
+        for dirname in find_sub_dirs((cuda_home,), sub_dirs):
             return dirname
     return None