From d603e52c69c92ef12823bacbc5e72a4c11f0624b Mon Sep 17 00:00:00 2001
From: Gabriel Simmer <g@gmem.ca>
Date: Sat, 3 Aug 2024 21:33:32 +0100
Subject: [PATCH] Skip uploading duplicate files to R2

---
 worker/src/index.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/worker/src/index.js b/worker/src/index.js
index 8865ee2..b0a74e5 100644
--- a/worker/src/index.js
+++ b/worker/src/index.js
@@ -107,7 +107,13 @@ export default {
 		  hash,
 		  file
 		} = Object.fromEntries(body)
-		await bucket.put(`${hash}.png`, file);
+
+		// Don't bother uploading to R2 if the hashes match.
+		let latest = kv.get("LATEST");
+		if (latest != hash) {
+		  await bucket.put(`${hash}.png`, file);
+		}
+
 		await kv.put("LATEST", hash, {
 		  metadata: { date: date }
 		});