Optimize canonicalize_filename

Using str.split is faster than Path.parts
mesonbuild · Jan 29, 2025 · 81e5d0f · 81e5d0f
1 parent fb435c0
commit 81e5d0f
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/mesonbuild/backend/backends.py b/mesonbuild/backend/backends.py
@@ -832,7 +832,9 @@ def determine_rpath_dirs(self, target: T.Union[build.BuildTarget, build.CustomTa
     @staticmethod
     @lru_cache(maxsize=None)
     def canonicalize_filename(fname: str) -> str:
-        parts = Path(fname).parts
+        if os.path.altsep is not None:
+            fname = fname.replace(os.path.altsep, os.path.sep)
+        parts = fname.split(os.path.sep)
         hashed = ''
         if len(parts) > 5:
             temp = '/'.join(parts[-5:])