From 5080e3b822a1f3501e9562e58c0b53d823eeca0a Mon Sep 17 00:00:00 2001
From: Kevin Cui <bh@bugs.cc>
Date: Tue, 25 Mar 2025 19:20:36 +0800
Subject: [PATCH] fix: not allow install multiple package manager

When a project has both npm and pnpm, using pnpm/action-setup will result in an error: `Multiple versions of pnpm specified`.

The previous implementation was only meant to avoid the "ERR_PNPM_BAD_PM_VERSION" error, but it did not take into account the situation of multiple different package managers.

Signed-off-by: Kevin Cui <bh@bugs.cc>
---
 src/install-pnpm/run.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/install-pnpm/run.ts b/src/install-pnpm/run.ts
index 5e04d08..26eb44b 100644
--- a/src/install-pnpm/run.ts
+++ b/src/install-pnpm/run.ts
@@ -64,6 +64,7 @@ async function readTarget(opts: {
   if (version) {
     if (
       typeof packageManager === 'string' &&
+      packageManager.startsWith('pnpm@') &&
       packageManager.replace('pnpm@', '') !== version
     ) {
       throw new Error(`Multiple versions of pnpm specified: