From 9431e98522ec91087f0e2b5fcd71a7a807f52ed7 Mon Sep 17 00:00:00 2001
From: GiGaGon <107241144+MeGaGiGaGon@users.noreply.github.com>
Date: Fri, 27 Dec 2024 16:48:23 -0800
Subject: [PATCH] Fix integration between stdin filename and --force-exclude
 (#4539)

---
 CHANGES.md            | 3 +++
 src/black/__init__.py | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/CHANGES.md b/CHANGES.md
index d2955d2..3cda3ac 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -56,6 +56,9 @@
 
 <!-- For example, Docker, GitHub Actions, pre-commit, editors -->
 
+- If using stdin with `--stdin-filename` set to a force excluded path, stdin won't be
+  formatted. (#4539)
+
 ### Documentation
 
 <!-- Major changes to documentation and policies. Small docs changes
diff --git a/src/black/__init__.py b/src/black/__init__.py
index 5f69945..93a08a8 100644
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -749,6 +749,12 @@ def get_sources(
     for s in src:
         if s == "-" and stdin_filename:
             path = Path(stdin_filename)
+            if path_is_excluded(stdin_filename, force_exclude):
+                report.path_ignored(
+                    path,
+                    "--stdin-filename matches the --force-exclude regular expression",
+                )
+                continue
             is_stdin = True
         else:
             path = Path(s)