[Feature] Better error messages on npm publish failed

[thewrath]

• I'd be willing to implement this feature
• This feature can already be implemented through a plugin

Describe the user story

I wanted to publish a package on npm via yarn npm publish and I got the error:

YN0041: Invalid authentification (as undefined)

Actually it's because I haven't changed the version of my package... a better message saves time:

YN0041: Invalid version number

This request is not very important but would bring a better user experience. 🙂
Thank you for the work you're doing.

[arcanis]

Interesting - we throw this error when the npm registry returns HTTP 401 or 403 (Forbidden / Unauthorized). The undefined is whatever a subsequent call to the /-/whoami returns (your token username, usually).

I'm not sure we can do better, unless you can log the exact return from the API (you can do that by running yarn set version from sources --no-minify then adding console.log statement in the httpUtils module; would be nice to make a switch making that easier).

[arcanis]

Closing for now; feel free to reopen with the extra information