feat(nuxi): auto-generate .npmrc and setting for pnpm (#7407)

Co-authored-by: Pooya Parsa <pooya@pi0.io>

docs/content/1.getting-started/2.installation.md

@@ -74,11 +74,15 @@ npm install
 ```
 
 ```bash [pnpm]
-pnpm install --shamefully-hoist
+pnpm install
 ```
 
 ::
 
+::alert
+**Note:** If using **pnpm**, make sure to have `.npmrc` with `shamefully-hoist=true` inside it before `pnpm install`.
+::
+
 ## Development Server
 
 Now you'll be able to start your Nuxt app in development mode:

packages/nuxi/src/commands/init.ts

@@ -1,3 +1,4 @@
+import { writeFile } from 'node:fs/promises'
 import { downloadTemplate, startShell } from 'giget'
 import { relative } from 'pathe'
 import consola from 'consola'
@@ -27,9 +28,16 @@ export default defineNuxtCommand({
 
     // Show next steps
     const relativeDist = rpath(t.dir)
+
+    // Write .nuxtrc with `shamefully-hoist=true` for pnpm
+    const usingPnpm = (process.env.npm_config_user_agent || '').includes('pnpm')
+    if (usingPnpm) {
+      await writeFile(`${relativeDist}/.npmrc`, 'shamefully-hoist=true')
+    }
+
     const nextSteps = [
       !args.shell && relativeDist.length > 1 && `\`cd ${relativeDist}\``,
-      'Install dependencies with `npm install` or `yarn install` or `pnpm install --shamefully-hoist`',
+      'Install dependencies with `npm install` or `yarn install` or `pnpm install`',
       'Start development server with `npm run dev` or `yarn dev` or `pnpm run dev`'
     ].filter(Boolean)