feat(env): link npm and npx as well, when installing Node.js (#3696)

.changeset/blue-cougars-visit.md

@@ -0,0 +1,5 @@
+---
+"@pnpm/plugin-commands-env": major
+---
+
+When installing Node.js, also link the npm CLI that is bundled with Node.js.

packages/plugin-commands-env/src/env.ts

@@ -22,7 +22,7 @@ export const commandNames = ['env']
 
 export function help () {
   return renderHelp({
-    description: 'Install and use the specified version of Node.js',
+    description: 'Install and use the specified version of Node.js. The npm CLI bundled with the given Node.js version gets installed as well.',
     descriptionLists: [
       {
         title: 'Options',
@@ -63,9 +63,20 @@ export async function handler (opts: NvmNodeCommandOptions, params: string[]) {
       ...opts,
       useNodeVersion: nodeVersion,
     })
-    const src = path.join(nodeDir, process.platform === 'win32' ? 'node.exe' : 'node')
+    const src = path.join(nodeDir, process.platform === 'win32' ? 'node.exe' : 'bin/node')
     const dest = path.join(opts.bin, 'node')
     await cmdShim(src, dest)
+    try {
+      let npmDir = nodeDir
+      if (process.platform !== 'win32') {
+        npmDir = path.join(npmDir, 'lib')
+      }
+      npmDir = path.join(npmDir, 'node_modules/npm/bin')
+      await cmdShim(path.join(npmDir, 'npm-cli.js'), path.join(opts.bin, 'npm'))
+      await cmdShim(path.join(npmDir, 'npx-cli.js'), path.join(opts.bin, 'npx'))
+    } catch (err) {
+      // ignore
+    }
     return `Node.js ${nodeVersion} is activated
   ${dest} -> ${src}`
   }

packages/plugin-commands-env/src/node.ts

@@ -35,6 +35,11 @@ export type NvmNodeCommandOptions = Pick<Config,
 | 'pnpmHomeDir'
 >
 
+export async function getNodeBinDir (opts: NvmNodeCommandOptions) {
+  const nodeDir = await getNodeDir(opts)
+  return process.platform === 'win32' ? nodeDir : path.join(nodeDir, 'bin')
+}
+
 export async function getNodeDir (opts: NvmNodeCommandOptions) {
   const nodesDir = path.join(opts.pnpmHomeDir, 'nodejs')
   let wantedNodeVersion = opts.useNodeVersion ?? (await readNodeVersionsManifest(nodesDir))?.default
@@ -53,7 +58,7 @@ export async function getNodeDir (opts: NvmNodeCommandOptions) {
   if (!fs.existsSync(versionDir)) {
     await installNode(wantedNodeVersion, versionDir, opts)
   }
-  return process.platform === 'win32' ? versionDir : path.join(versionDir, 'bin')
+  return versionDir
 }
 
 async function installNode (wantedNodeVersion: string, versionDir: string, opts: NvmNodeCommandOptions) {

packages/plugin-commands-env/test/env.test.ts

@@ -6,7 +6,7 @@ import { env } from '@pnpm/plugin-commands-env'
 import execa from 'execa'
 import PATH from 'path-name'
 
-test('install Node by exact version', async () => {
+test('install Node (and npm, npx) by exact version of Node.js', async () => {
   tempDir()
 
   await env.handler({
@@ -16,12 +16,26 @@ test('install Node by exact version', async () => {
     rawConfig: {},
   }, ['use', '16.4.0'])
 
-  const { stdout } = execa.sync('node', ['-v'], {
+  const opts = {
     env: {
       [PATH]: `${process.cwd()}${path.delimiter}${process.env[PATH] as string}`,
     },
-  })
-  expect(stdout.toString()).toBe('v16.4.0')
+  }
+
+  {
+    const { stdout } = execa.sync('node', ['-v'], opts)
+    expect(stdout.toString()).toBe('v16.4.0')
+  }
+
+  {
+    const { stdout } = execa.sync('npm', ['-v'], opts)
+    expect(stdout.toString()).toBe('7.18.1')
+  }
+
+  {
+    const { stdout } = execa.sync('npx', ['-v'], opts)
+    expect(stdout.toString()).toBe('7.18.1')
+  }
 
   const dirs = fs.readdirSync(path.resolve('nodejs'))
   expect(dirs).toEqual(['16.4.0'])

packages/pnpm/src/main.ts

@@ -233,7 +233,7 @@ export default async function run (inputArgv: string[]) {
     })
 
     if (config.useNodeVersion != null) {
-      const nodePath = await node.getNodeDir(config)
+      const nodePath = await node.getNodeBinDir(config)
       config.extraBinPaths.push(nodePath)
     }
     let result = pnpmCmds[cmd ?? 'help'](