From 9d8f94a7c83ee465c12f1e2216dec08ee979bc2c Mon Sep 17 00:00:00 2001
From: Harmen Stoppels <me@harmenstoppels.nl>
Date: Tue, 27 Aug 2024 18:45:44 +0200
Subject: [PATCH] spack_yaml: delete custom deepcopy (#46048)

---
 lib/spack/spack/util/spack_yaml.py | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/lib/spack/spack/util/spack_yaml.py b/lib/spack/spack/util/spack_yaml.py
index b3326d29591..d53f26350e0 100644
--- a/lib/spack/spack/util/spack_yaml.py
+++ b/lib/spack/spack/util/spack_yaml.py
@@ -14,7 +14,6 @@
 """
 import collections
 import collections.abc
-import copy
 import ctypes
 import enum
 import functools
@@ -400,20 +399,6 @@ def as_string(self, data) -> str:
         return result.getvalue()
 
 
-def deepcopy(data):
-    """Returns a deepcopy of the input YAML data."""
-    result = copy.deepcopy(data)
-
-    if isinstance(result, comments.CommentedMap):
-        # HACK to fully copy ruamel CommentedMap that doesn't provide copy
-        # method. Especially necessary for environments
-        extracted_comments = extract_comments(data)
-        if extracted_comments:
-            set_comments(result, data_comments=extracted_comments)
-
-    return result
-
-
 def load_config(str_or_file):
     """Load but modify the loader instance so that it will add __line__
     attributes to the returned object."""