From 81e5d0f7b053d0f1d571a1b70d04adaf02d10c81 Mon Sep 17 00:00:00 2001
From: Charles Brunet <charles.brunet@optelgroup.com>
Date: Tue, 28 Jan 2025 16:23:44 -0500
Subject: [PATCH] Optimize canonicalize_filename

Using str.split is faster than Path.parts
---
 mesonbuild/backend/backends.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mesonbuild/backend/backends.py b/mesonbuild/backend/backends.py
index 0c181e56fb53..e188e17c08b4 100644
--- 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:])