From d9f1e0976bf719ddf809729017c95e2f86615ced Mon Sep 17 00:00:00 2001
From: LitoMore <litomore@gmail.com>
Date: Mon, 20 Apr 2026 01:10:24 +0800
Subject: [PATCH] Allow bare bun in `packageManager`

---
 src/negative_test/package/package-manager-bun-substring.json | 3 +++
 src/schemas/json/package.json                                | 2 +-
 src/test/package/package-manager-bun.json                    | 4 ++++
 3 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 src/negative_test/package/package-manager-bun-substring.json
 create mode 100644 src/test/package/package-manager-bun.json

diff --git a/src/negative_test/package/package-manager-bun-substring.json b/src/negative_test/package/package-manager-bun-substring.json
new file mode 100644
index 00000000000..a43e9c33fd7
--- /dev/null
+++ b/src/negative_test/package/package-manager-bun-substring.json
@@ -0,0 +1,3 @@
+{
+  "packageManager": "bunny"
+}
diff --git a/src/schemas/json/package.json b/src/schemas/json/package.json
index 810d27869b0..783abc25e1e 100644
--- a/src/schemas/json/package.json
+++ b/src/schemas/json/package.json
@@ -797,7 +797,7 @@
     "packageManager": {
       "description": "Defines which package manager is expected to be used when working on the current project. This field is currently experimental and needs to be opted-in; see https://nodejs.org/api/corepack.html",
       "type": "string",
-      "pattern": "(npm|pnpm|yarn|bun)@\\d+\\.\\d+\\.\\d+(-.+)?"
+      "pattern": "^((npm|pnpm|yarn|bun)@\\d+\\.\\d+\\.\\d+(-.+)?|bun)$"
     },
     "engines": {
       "type": "object",
diff --git a/src/test/package/package-manager-bun.json b/src/test/package/package-manager-bun.json
new file mode 100644
index 00000000000..0081a9ffbe6
--- /dev/null
+++ b/src/test/package/package-manager-bun.json
@@ -0,0 +1,4 @@
+{
+  "$schema": "../../schemas/json/package.json",
+  "packageManager": "bun"
+}