Merge pull request swiftlang#34265 from drodriguez/windows-rewrite-module-triples

[windows] Use extended length paths for os.walk invocation.

Author: drodriguez

test/CrossImport/Inputs/rewrite-module-triples.py

@@ -17,6 +17,9 @@
     sys.exit(1)
 
 root_dir = sys.argv[1]
+if platform.system() == 'Windows':
+    root_dir = "\\\\?\\" + os.path.abspath(root_dir)
+
 triples = sys.argv[2:]
 
 
@@ -37,16 +40,9 @@ def rewrite(parent, names, copy_fn, rm_fn):
 
         for new_name in new_names:
             new_path = os.path.join(parent, new_name)
-            if platform.system() == 'Windows':
-                copy_fn(u'\\'.join([u'\\\\?', os.path.normpath(path)]),
-                        u'\\'.join([u'\\\\?', os.path.normpath(new_path)]))
-            else:
-                copy_fn(path, new_path)
-
-        if platform.system() == 'Windows':
-            rm_fn(u'\\'.join([u'\\\\?', os.path.normpath(path)]))
-        else:
-            rm_fn(path)
+            copy_fn(path, new_path)
+
+        rm_fn(path)
 
 
 for parent, dirs, files in os.walk(root_dir, topdown=False):