From c41e908ed58c3665f47646438ed5c8b583228d35 Mon Sep 17 00:00:00 2001
From: David Eisinger <david.eisinger@gmail.com>
Date: Thu, 9 Apr 2026 00:26:36 -0400
Subject: [PATCH] Fix cache key error

---
 bin/dither/dither.rb | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/bin/dither/dither.rb b/bin/dither/dither.rb
index 7bf7938..e984ebf 100644
--- a/bin/dither/dither.rb
+++ b/bin/dither/dither.rb
@@ -16,11 +16,9 @@ def cache_path_for(path, geometry)
   return unless CACHE_DIR
 
   source_path = "#{ROOT}/#{path}.enc"
-  stat = File.stat(source_path)
   cache_key = Digest::SHA256.hexdigest([
     path,
-    stat.size,
-    stat.mtime.to_f,
+    Digest::SHA256.file(source_path).hexdigest,
     geometry,
     DITHER,
     FORMAT,