From 50505cc6f862d210757b76f9a9d1eb067c7b1b9d Mon Sep 17 00:00:00 2001
From: cherenkov <chrnkv@gmail.com>
Date: Mon, 12 Oct 2026 10:16:23 +0900
Subject: [PATCH] Ensure sequentialRead option is honoured

---
 src/common.cc   |  2 +-
 test/unit/io.js | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/common.cc b/src/common.cc
index b8978772b..8de7d1232 100644
--- a/src/common.cc
+++ b/src/common.cc
@@ -198,7 +198,7 @@ namespace sharp {
     }
     descriptor->limitInputPixels = static_cast<uint64_t>(AttrAsInt64(input, "limitInputPixels"));
     descriptor->limitInputChannels = static_cast<uint64_t>(AttrAsInt64(input, "limitInputChannels"));
-    if (HasAttr(input, "access")) {
+    if (HasAttr(input, "sequentialRead")) {
       descriptor->access = AttrAsBool(input, "sequentialRead") ? VIPS_ACCESS_SEQUENTIAL : VIPS_ACCESS_RANDOM;
     }
     // Remove safety features and allow unlimited input
diff --git a/test/unit/io.js b/test/unit/io.js
index ad5fd55c1..53f91b8ea 100644
--- a/test/unit/io.js
+++ b/test/unit/io.js
@@ -494,6 +494,17 @@ suite('Input/output', () => {
     t.assert.strictEqual(info.height, 240);
   });
 
+  test('Sequential read option controls access method', async (t) => {
+    t.plan(2);
+    for (const sequentialRead of [true, false]) {
+      const outputV = fixtures.path(`output.sequential-read-${sequentialRead}.v`);
+      await sharp(fixtures.inputJpg, { sequentialRead }).toFile(outputV);
+      const contents = await fs.readFile(outputV, 'latin1');
+      t.assert.strictEqual(contents.includes('vips-sequential'), sequentialRead);
+      await fs.rm(outputV);
+    }
+  });
+
   test('Support output to jpg format', async (t) => {
     t.plan(5);
     const { data, info } = await sharp(fixtures.inputPng)