Volta: "New version of npm available" shown after `notion install`

[mikrostew]

Sometimes, but not every time, Npm shows a "New version of npm available" printout after the install completes:

$ notion install cowsay 1.3.0
  Fetching cowsay-v1.3.0  [========================================] 100%
npm notice created a lockfile as package-lock.json. You should commit this file.
added 9 packages from 2 contributors and audited 1535 packages in 30.198s
found 0 vulnerabilities



   ╭───────────────────────────────────────────────────────────────╮
   │                                                               │
   │       New minor version of npm available! 6.7.0 → 6.9.0       │
   │   Changelog: https://github.com/npm/cli/releases/tag/v6.9.0   │
   │               Run npm install -g npm to update!               │
   │                                                               │
   ╰───────────────────────────────────────────────────────────────╯

This is annoying, and won't work because we will block the global install.

There is probably a way to suppress this (env variable, or a setting somewhere).

[charlespierce]

From this issue https://github.com/npm/npm/issues/17453, it looks like we may be able to set NO_UPDATE_NOTIFIER when calling npm to suppress that message.

[kimroen]

Just wanted to note that I'm getting this also when running various npm commands, like npm run lint:

➜ npm run lint:js

> [email protected] lint:js ~/path/to/project
> eslint .



   ╭────────────────────────────────────────────────────────────────╮
   │                                                                │
   │       New minor version of npm available! 6.4.1 → 6.10.1       │
   │   Changelog: https://github.com/npm/cli/releases/tag/v6.10.1   │
   │               Run npm install -g npm to update!                │
   │                                                                │
   ╰────────────────────────────────────────────────────────────────╯

Running npm install -g npm as instructed then shows this error:

➜ npm install -g npm
Volta error: Global package installs are not supported.

Use `volta install npm` to add a package to your toolchain (see `volta help install` for more info).

Which then leads to running this command, and getting this error:

➜ volta install npm
error: Installing npm is not supported yet.

[charlespierce]

Hi @kimroen, thanks for raising that! We're tracking adding support for installing a specific version of npm in #292.

In the interim, this is a bad UX and we should update our error messaging to explicitly call-out (in npm install -g npm) that it's not supported yet instead of telling you to do something that then itself errors out.