♻️ Do not overwrite cached image files.

hexawyz · Feb 8, 2025 · ce9e004 · ce9e004
1 parent db5b84a
commit ce9e004
Showing 1 changed file with 5 additions and 1 deletion.
diff --git 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));
 		}
 	}