fix: NPM Workspace throwsENOWORKSPACES error when fetching registry (…

…#68522)

### Why?

This issue occurs when a project is NPM Workspace, and has no other
package managers but NPM is installed.

Next.js runs [npm config get
registry](https://github.com/vercel/next.js/blob/e35710f71f8e0f2844add1a97513a65a54a6f2a3/packages/next/src/lib/helpers/get-registry.ts#L13)
to fetch the registry.
However, running `npm config get registry` at a NPM Workspace is not
allowed resulting a `ENOWORKSPACES` error.

```
$ npm config get registry  
npm error code ENOWORKSPACES
npm error This command does not support workspaces.
```

As we didn't consume the error, it threw when the enabled `next
telemetry` [triggered
getVersionInfo](https://github.com/vercel/next.js/blame/fb2d2dd01a5f73ac62c4809b7b9c1490617f8705/packages/next/src/server/dev/hot-reloader-webpack.ts#L725-L728)
calling `getRegistry` which threw as above.

### How?

Add `--no-workspaces` flag when the pkgManager is `'npm'`.
It is safe for non-workspace projects as it's equivalent to default
`--workspaces=false`.

Fixes #47121
Fixes NEXT-832
Fixes NDX-150

---------

Co-authored-by: Sebastian Silbermann <[email protected]>

packages/next/src/lib/helpers/get-registry.ts

@@ -8,22 +8,36 @@ import { getFormattedNodeOptionsWithoutInspect } from '../../server/lib/utils'
  * @default https://registry.npmjs.org/
  */
 export function getRegistry(baseDir: string = process.cwd()) {
+  const pkgManager = getPkgManager(baseDir)
+  // Since `npm config` command fails in npm workspace to prevent workspace config conflicts,
+  // add `--no-workspaces` flag to run under the context of the root project only.
+  // Safe for non-workspace projects as it's equivalent to default `--workspaces=false`.
+  // x-ref: https://github.com/vercel/next.js/issues/47121#issuecomment-1499044345
+  // x-ref: https://github.com/npm/statusboard/issues/371#issue-920669998
+  const resolvedFlags = pkgManager === 'npm' ? '--no-workspaces' : ''
   let registry = `https://registry.npmjs.org/`
+
   try {
-    const pkgManager = getPkgManager(baseDir)
-    const output = execSync(`${pkgManager} config get registry`, {
-      env: {
-        ...process.env,
-        NODE_OPTIONS: getFormattedNodeOptionsWithoutInspect(),
-      },
-    })
+    const output = execSync(
+      `${pkgManager} config get registry ${resolvedFlags}`,
+      {
+        env: {
+          ...process.env,
+          NODE_OPTIONS: getFormattedNodeOptionsWithoutInspect(),
+        },
+      }
+    )
       .toString()
       .trim()
 
     if (output.startsWith('http')) {
       registry = output.endsWith('/') ? output : `${output}/`
     }
-  } finally {
-    return registry
+  } catch (err) {
+    throw new Error(`Failed to get registry from "${pkgManager}".`, {
+      cause: err,
+    })
   }
+
+  return registry
 }