From 3c160731ed82484d2aaec29ba2364153a7cbe9c8 Mon Sep 17 00:00:00 2001
From: Yureka <tvl@yuka.dev>
Date: Fri, 19 Jul 2024 12:35:09 +0200
Subject: fix(tvix/castore/blob/object_store): empty chunk list for single
 chunk

Change-Id: Ie3609ac6184ecead11c4e03073433c26ce129848
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11981
Autosubmit: yuka <yuka@yuka.dev>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
---
 tvix/castore/src/blobservice/object_store.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'tvix')

diff --git a/tvix/castore/src/blobservice/object_store.rs b/tvix/castore/src/blobservice/object_store.rs
index 224ebae9e2c6..846f3643761d 100644
--- a/tvix/castore/src/blobservice/object_store.rs
+++ b/tvix/castore/src/blobservice/object_store.rs
@@ -349,6 +349,15 @@ async fn chunk_and_upload<R: AsyncRead + Unpin>(
         .collect::<io::Result<Vec<ChunkMeta>>>()
         .await?;
 
+    let chunks = if chunks.len() < 2 {
+        // The chunker returned only one chunk, which is the entire blob.
+        // According to the protocol, we must return an empty list of chunks
+        // when the blob is not split up further.
+        vec![]
+    } else {
+        chunks
+    };
+
     let stat_blob_response = StatBlobResponse {
         chunks,
         bao: "".into(), // still todo
-- 
cgit 1.4.1