From 971e17893475cec940c826eb94765f880768c257 Mon Sep 17 00:00:00 2001
From: Kevin Liu <kevin.jq.liu@gmail.com>
Date: Tue, 11 Nov 2025 06:04:09 -0800
Subject: [PATCH] remove .egg-info and setup.cfg from sdist

---
 dev/.rat-excludes |  2 --
 setup.py          | 18 ++++++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/dev/.rat-excludes b/dev/.rat-excludes
index 27c1dc31fc..16e996dba8 100644
--- a/dev/.rat-excludes
+++ b/dev/.rat-excludes
@@ -5,5 +5,3 @@ build
 .gitignore
 uv.lock
 mkdocs/*
-setup.cfg
-(^|.*/)[^/]*\.egg-info(/.*)?$
diff --git a/setup.py b/setup.py
index 6f05a300fd..34eee94bbd 100644
--- a/setup.py
+++ b/setup.py
@@ -18,6 +18,23 @@
 import os
 
 from setuptools import Extension, find_packages, setup
+from setuptools.command.sdist import sdist as _sdist
+
+
+class sdist(_sdist):
+    """Custom sdist that excludes .egg-info and setup.cfg."""
+
+    def make_release_tree(self, base_dir: str, files: list[str]) -> None:
+        # Filter egg-info from the file manifest
+        files = [f for f in files if ".egg-info" not in f]
+
+        super().make_release_tree(base_dir, files)
+
+        # Remove setup.cfg after setuptools creates it
+        setup_cfg = os.path.join(base_dir, "setup.cfg")
+        if os.path.exists(setup_cfg):
+            os.remove(setup_cfg)
+
 
 allowed_to_fail = os.environ.get("CIBUILDWHEEL", "0") != "1"
 
@@ -69,4 +86,5 @@
     },
     include_package_data=True,
     ext_modules=ext_modules,
+    cmdclass={"sdist": sdist},
 )