From 92a150d9e45379ea8c14e1b10293d659f60eb132 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=C5=81ukasz=20Langa?= <lukasz@langa.pl>
Date: Wed, 6 Jun 2018 11:58:36 -0700
Subject: [PATCH 1/1] Fix improper unmodified file caching when `-S` was used

This will also future-proof the cache to changes to FileMode.
---
 README.md | 5 +++++
 black.py  | 7 +------
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index bdc000a..00179a9 100644
--- a/README.md
+++ b/README.md
@@ -712,6 +712,11 @@ More details can be found in [CONTRIBUTING](CONTRIBUTING.md).
 
 ## Change Log
 
+### 18.6b2
+
+* fixed improper unmodified file caching when `-S` was used
+
+
 ### 18.6b1
 
 * hotfix: don't output human-facing information on stdout (#299)
diff --git a/black.py b/black.py
index e72db2b..80401f5 100644
--- a/black.py
+++ b/black.py
@@ -3335,12 +3335,7 @@ def can_omit_invisible_parens(line: Line, line_length: int) -> bool:
 
 
 def get_cache_file(line_length: int, mode: FileMode) -> Path:
-    pyi = bool(mode & FileMode.PYI)
-    py36 = bool(mode & FileMode.PYTHON36)
-    return (
-        CACHE_DIR
-        / f"cache.{line_length}{'.pyi' if pyi else ''}{'.py36' if py36 else ''}.pickle"
-    )
+    return CACHE_DIR / f"cache.{line_length}.{mode.value}.pickle"
 
 
 def read_cache(line_length: int, mode: FileMode) -> Cache:
-- 
2.39.5