From 827a2569332fd3a4c77b663814ee9e4643f9d592 Mon Sep 17 00:00:00 2001
From: Boshen <boshenc@gmail.com>
Date: Tue, 16 Dec 2025 03:23:43 +0000
Subject: [PATCH] fix(oxfmt): place ignorePatterns at bottom of JSON in
 --migrate prettier (#16926)

---
 apps/oxfmt/src-js/migration/migrate-prettier.ts | 6 ++++--
 apps/oxfmt/src-js/migration/shared.ts           | 2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/apps/oxfmt/src-js/migration/migrate-prettier.ts b/apps/oxfmt/src-js/migration/migrate-prettier.ts
index 34155b3244969..8f411738c79e0 100644
--- a/apps/oxfmt/src-js/migration/migrate-prettier.ts
+++ b/apps/oxfmt/src-js/migration/migrate-prettier.ts
@@ -106,10 +106,12 @@ export async function runMigratePrettier() {
 
   // Migrate `ignorePatterns` from `.prettierignore`
   const ignores = await resolvePrettierIgnore(cwd);
-  if (0 < ignores.length) {
-    oxfmtrc.ignorePatterns = ignores;
+  if (ignores.length > 0) {
     console.log("Migrated ignore patterns from `.prettierignore`");
   }
+  // Keep ignorePatterns at the bottom
+  delete oxfmtrc.ignorePatterns;
+  oxfmtrc.ignorePatterns = ignores;
 
   const jsonStr = JSON.stringify(oxfmtrc, null, 2);
 
diff --git a/apps/oxfmt/src-js/migration/shared.ts b/apps/oxfmt/src-js/migration/shared.ts
index 5644f24dec58f..04276338eb040 100644
--- a/apps/oxfmt/src-js/migration/shared.ts
+++ b/apps/oxfmt/src-js/migration/shared.ts
@@ -17,7 +17,7 @@ export async function createBlankOxfmtrcFile(cwd: string) {
   const config: Record<string, unknown> = {
     // Add `$schema` field at the top if schema file exists in `node_modules`
     $schema: schemaPath,
-    // `ignorePatterns` is included to make visible and preferred over `.prettierignore`
+    // `ignorePatterns` is included to make it visible and preferred over `.prettierignore`
     ignorePatterns: [],
   };