From ce9e0047cc006a0b57db42acf524e15bdd369152 Mon Sep 17 00:00:00 2001
From: hexawyz <8518235+hexawyz@users.noreply.github.com>
Date: Sat, 8 Feb 2025 23:36:59 +0100
Subject: [PATCH] =?UTF-8?q?=E2=99=BB=EF=B8=8F=20Do=20not=20overwrite=20cac?=
 =?UTF-8?q?hed=20image=20files.?=
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---
 src/Exo/Service/Exo.Service.Core/ImageStorageService.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Exo/Service/Exo.Service.Core/ImageStorageService.cs b/src/Exo/Service/Exo.Service.Core/ImageStorageService.cs
index 73d7899..21b73f5 100644
--- a/src/Exo/Service/Exo.Service.Core/ImageStorageService.cs
+++ b/src/Exo/Service/Exo.Service.Core/ImageStorageService.cs
@@ -433,7 +433,11 @@ bool shouldApplyCircularMask
 			TransformImage(stream, image, sourceRectangle, targetFormat, targetSize, shouldStripAnimations, shouldApplyCircularMask);
 			var physicalImageId = XxHash128.HashToUInt128(stream.GetBuffer().AsSpan(0, (int)stream.Length), PhysicalImageIdHashSeed);
 			string fileName = GetFileName(_imageCacheDirectory, physicalImageId);
-			File.WriteAllBytes(fileName, stream.GetBuffer().AsSpan(0, (int)stream.Length));
+			// Assume that if a file exists, it is already correct. We want to avoid wearing the disk if we don't need to.
+			if (!File.Exists(fileName))
+			{
+				File.WriteAllBytes(fileName, stream.GetBuffer().AsSpan(0, (int)stream.Length));
+			}
 			return (physicalImageId, targetFormat, GetImageFile(physicalImageId));
 		}
 	}