Merge 4b568c8023 into f2b2b233b5

@zkochan If you have tested that it work with newer Node.js versions, this warning can be removed.

README.md

@@ -1,7 +1,3 @@
-> ## :warning: Upgrade from v2!
->
-> The v2 version of this action [has stopped working](https://github.com/pnpm/action-setup/issues/135) with newer Node.js versions. Please, upgrade to the latest version to fix any issues.
-
 # Setup pnpm
 
 Install pnpm package manager.

src/install-pnpm/run.ts

@@ -1,6 +1,6 @@
 import { addPath, exportVariable } from '@actions/core'
 import { spawn } from 'child_process'
-import { rm, writeFile, mkdir, copyFile } from 'fs/promises'
+import { rm, writeFile, mkdir } from 'fs/promises'
 import { readFileSync } from 'fs'
 import path from 'path'
 import { execPath } from 'process'
@@ -10,7 +10,6 @@ import YAML from 'yaml'
 
 export async function runSelfInstaller(inputs: Inputs): Promise<number> {
   const { version, dest, packageJsonFile, standalone } = inputs
-  const { GITHUB_WORKSPACE } = process.env
 
   // prepare self install
   await rm(dest, { recursive: true, force: true })
@@ -20,16 +19,6 @@ export async function runSelfInstaller(inputs: Inputs): Promise<number> {
   // we have ensured the dest directory exists, we can write the file directly
   await writeFile(pkgJson, JSON.stringify({ private: true }))
 
-  // copy .npmrc if it exists to install from custom registry
-  if (GITHUB_WORKSPACE) {
-    try {
-      await copyFile(path.join(GITHUB_WORKSPACE, '.npmrc'), path.join(dest, '.npmrc'))
-    } catch (error) {
-      // Swallow error if .npmrc doesn't exist
-      if (!util.types.isNativeError(error) || !('code' in error) || error.code !== 'ENOENT') throw error
-    }
-  }
-
   // prepare target pnpm
   const target = await readTarget({ version, packageJsonFile, standalone })
   const cp = spawn(execPath, [path.join(__dirname, 'pnpm.cjs'), 'install', target, '--no-lockfile'], {