From ac5c37b661568067747abb18dfa2b45ec45ea58a Mon Sep 17 00:00:00 2001
From: oppiliappan <me@oppi.li>
Date: Fri, 23 Oct 2026 09:50:05 +0100
Subject: [PATCH] web/repo: let the diff queue refetch a file whole

whole() fetches a file's sides once

Signed-off-by: oppiliappan <me@oppi.li>
---
 web/src/lib/components/repo/diffQueue.ts | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/web/src/lib/components/repo/diffQueue.ts b/web/src/lib/components/repo/diffQueue.ts
index 7829088b2..46533990a 100644
--- a/web/src/lib/components/repo/diffQueue.ts
+++ b/web/src/lib/components/repo/diffQueue.ts
@@ -27,6 +27,7 @@ export interface DiffQueue {
 	applyPatch: (url: string, signal: AbortSignal) => Promise<void>;
 	/** hands the queue files someone else already parsed, so it stops chasing them */
 	adopt: (parsed: Record<string, DiffEntry>) => void;
+	whole: (key: string) => boolean;
 	destroy: () => void;
 }
 
@@ -36,6 +37,8 @@ export const createDiffQueue = (host: DiffQueueHost): DiffQueue => {
 	let running = 0;
 	const pending = new Set<string>();
 	const inFlight = new Set<string>();
+	const replacing = new Set<string>();
+	const tried = new Set<string>();
 	// file order is monotonic down the page, so index distance stands in for
 	// pixels
 	let focusIndex = 0;
@@ -103,7 +106,7 @@ export const createDiffQueue = (host: DiffQueueHost): DiffQueue => {
 		running++;
 		inFlight.add(file.key);
 		try {
-			if (host.entry(file.key)) return;
+			if (host.entry(file.key) && !replacing.has(file.key)) return;
 			const contents = await fetchWithRetry(file);
 			if (!("oldFile" in contents)) {
 				host.put({ [file.key]: { note: contents.note } });
@@ -130,6 +133,7 @@ export const createDiffQueue = (host: DiffQueueHost): DiffQueue => {
 			}
 		} finally {
 			inFlight.delete(file.key);
+			replacing.delete(file.key);
 			running--;
 			pump();
 		}
@@ -149,6 +153,15 @@ export const createDiffQueue = (host: DiffQueueHost): DiffQueue => {
 			pump();
 		},
 		drain: () => pump(),
+		whole: (key) => {
+			if (tried.has(key)) return pending.has(key) || inFlight.has(key);
+			if (!byKey().get(key)?.file.sides) return false;
+			tried.add(key);
+			replacing.add(key);
+			pending.add(key);
+			pump();
+			return true;
+		},
 		adopt: (parsed) => {
 			const landing: Record<string, DiffEntry> = {};
 			for (const [key, value] of Object.entries(parsed)) {
-- 
2.54.0