From f9913c14ffa2768d5aa55932738cd2f25614d706 Mon Sep 17 00:00:00 2001
From: Dario Piotrowicz <dario@cloudflare.com>
Date: Mon, 21 Aug 2023 10:07:19 +0100
Subject: [PATCH] adjust package version detection in yarn

---
 .changeset/proud-lamps-tie.md                                | 5 +++++
 .../src/buildApplication/packageManagerUtils.ts              | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/proud-lamps-tie.md

diff --git a/.changeset/proud-lamps-tie.md b/.changeset/proud-lamps-tie.md
new file mode 100644
index 000000000..e69f181db
--- /dev/null
+++ b/.changeset/proud-lamps-tie.md
@@ -0,0 +1,5 @@
+---
+'@cloudflare/next-on-pages': patch
+---
+
+fix package version detection for yarn
diff --git a/packages/next-on-pages/src/buildApplication/packageManagerUtils.ts b/packages/next-on-pages/src/buildApplication/packageManagerUtils.ts
index 207031fbf..9554919ff 100644
--- a/packages/next-on-pages/src/buildApplication/packageManagerUtils.ts
+++ b/packages/next-on-pages/src/buildApplication/packageManagerUtils.ts
@@ -119,7 +119,9 @@ export async function getPackageManagerInfo(
 					pm === 'yarn (berry)'
 						? (useDlx: boolean) => [useDlx ? 'dlx' : 'exec']
 						: undefined,
-				infoArgs: ['info'],
+				infoArgs: ['list', '--pattern'],
+				getPackageVersionRegex: (name: string) =>
+					new RegExp(`"name":"${name}@(.*?)"`, 'i'),
 			};
 		case 'npm':
 		default: