From 4c4a51cb6bd01e2e813354502b8327285fc00e75 Mon Sep 17 00:00:00 2001
From: Tzu-ping Chung <uranusjr@gmail.com>
Date: Fri, 25 Oct 2019 05:19:13 +0800
Subject: [PATCH] Do not crash when failing to read an entry (#1090)

---
 black.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/black.py b/black.py
index 24ab660..ada9b0e 100644
--- a/black.py
+++ b/black.py
@@ -3491,6 +3491,9 @@ def gen_python_files_in_dir(
         # Then ignore with `exclude` option.
         try:
             normalized_path = "/" + child.resolve().relative_to(root).as_posix()
+        except OSError as e:
+            report.path_ignored(child, f"cannot be read because {e}")
+            continue
         except ValueError:
             if child.is_symlink():
                 report.path_ignored(
-- 
2.39.2