The command npmrc fails in windows because there is no any environment variable HOME set in windows.

Using process.env.HOME || process.env.USERPROFILE on lines 7 and 8 may resolve this issue.

C:\Users\Ngene>npmrc

path.js:204
        throw new TypeError('Arguments to path.join must be strings');
              ^
TypeError: Arguments to path.join must be strings
    at f (path.js:204:15)
    at Object.filter (native)
    at Object.exports.join (path.js:209:40)
    at Object.<anonymous> (C:\Users\Ngene\AppData\Roaming\npm\node_modules\npmrc\npmrc.js:7:51)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)

the company i work with have a private npm registry so I constantly switching between public registry and the corp private one, thanks to this great tool, the process has been smooth.
I was just wondering how hard it's to update ~/.yarnrc as well

I know the syntax is different for npmrc and yarnrc file, but, that different should be that big and they are all predictable
any idea in this space? thanks

I know you can type just the first few letters for the profile you want to switch to, but it would be nice if there was a bash autocomplete script to let you tab-complete the profile name.

Thanks for the cool utility.

I'd like to add a shortcut to just got back to whatever profile I was on previously. I'd be happy to make a pr if there's interest.

Every time I run pnpm, the first thing that gets printed is the following:

WARN: Issue while reading "~/.config/nvm/versions/node/v18.10.0/lib/node_modules/npmrc". EISDIR: illegal operation on a directory, read

The issue goes away when I run npm rm -g npmrc, however I'd like to keep it installed.

As the error message implies, I am using node 18.10.0 managed by nvm.

I was on Win10, but once I manually did touch C:\Users\fritx\.npmrc it began to work

$ npm i -g npmrc
$ npmrc -r cn

Initialising npmrc...
Creating C:\Users\fritx\.npmrcs
Activating .npmrc "default"
fs.js:500
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
                 ^
Error: ENOENT, no such file or directory 'C:\Users\fritx\.npmrc'
    at Error (native)
    at Object.fs.openSync (fs.js:500:18)
    at Object.fs.readFileSync (fs.js:352:15)
    at replaceRegistry (C:\Users\fritx\AppData\Roaming\npm\node_modules\npmrc\npmrc.js:215:21)
    at handleOPtions (C:\Users\fritx\AppData\Roaming\npm\node_modules\npmrc\npmrc.js:190:5)
    at Object.<anonymous> (C:\Users\fritx\AppData\Roaming\npm\node_modules\npmrc\npmrc.js:191:2)
    at Module._compile (module.js:460:26)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)

npmrc
npmrc test1
npmrc test2 - I was able to change to this profile without a error message then is see the below error:
Current .npmrc (/Users/test/.npmrc) is not a symlink. You may want to copy it into /Users/test/.npmrcs.
From then on running npmrc test1 doesn't properly symlink back to .npmrc.
Have to then start from scratch.

1. npmrc -c work
2. npmrc -->will show me a list of all registers --> default, work
   How to remove from this list a work registry?

I have many npm profiles setup on my work machine. I would like to make it slightly easier to switch between them. To do so, I propose an "intactive mode" where I'd be able to type:

$ npmrc

NOTE: this could be added behind an --interactive/-i flag to avoid a breaking change.

Which would bring up the list of profiles (currently exists), and let me select one by using arrow keys. Something like inquirer.prompt() in "list" mode would work perfectly. A working example can be found in the Inquirer.js repository.

I'd be happy to contribute this functionality (if desired). Please let me know what you think!

Running on windows causes:

Error: EPERM: operation not permitted, symlink 'C:\Users\user.npmrcs\default' -> 'C:\Users\user.npmrc'

I suspect that is because Windows doesnt support links

perhaps we could bundle up some of the other global mirrors and allow a simple operation like:

> npmrc --registry au # selects AU npm mirror
> npmrc --registry eu # selects some mirror in europe ?
> npmrc --registry slow # selects US default

This would simply overwrite the registry entry in the current npmrc.

Best case

Auto set the registry based on something like, IP lookup:

>npmrc --registry auto
Looks like you in Australia mate. Selected AU registry.

Worst case

Provide a list of public mirrors in the readme.

this log is confusing:

Current .npmrc (/Users/callum/.npmrc) is not a symlink. You may want to copy it into /Users/callum/.npmrcs.

do you mean you may want to move it (not copy), and then create a symlink to it from ~/.npmrc?

also, why? what's the benefit of it being a symlink?

Not sure if the things on the README are correct, because following it doesn't work for me.

Firstly, README says it would have created the directory if I typed in npmrc without any args.

➜ npmrc
Available npmrcs:

find: /Users/paolo.delmundo/.npmrcs: No such file or directory

Secondly, when trying to switch, I get this error message:

➜  ~  npmrc default
Current .npmrc (/Users/paolo.delmundo/.npmrc) is not a regular file, not removing it

It told me to report it.

http <-- 409, user: undefined, req: 'PUT /-/user/org.couchdb.user:barney', error: this user already exists
fatal --- uncaught exception, please report this

Hello,

the Path Variables in the README seams to be false...

Here your code:

const NPMRC_STORE = process.env.NPM_STORE || path.join(process.env.HOME || process.env.USERPROFILE, '.npmrcs')
    , NPMRC       = process.env.NPMC || path.join(process.env.HOME || process.env.USERPROFILE, '.npmrc')
    , USAGE       = 'Usage: npmrc [-c] [name]'

It seams to be NPM_STORE / NPMC and not NPMRC_STORE / NPMRC...

I change my npmrc often enough I wouldn't mind having it in my prompt.

I'm not sure if this is practical. Maybe set an ENV whenever it's changed and show that ENV in the prompt?

Maybe this would be better as a wrapper around npmrc?

It'd be amazing if the command npmrc would help by allowing the user to select an item.

Something quite similar:

https://github.com/ruyadorno/ntl

I'm getting this message each and every time I start a terminal session:
: verb config Skipping project config: /Users/tielur/.npmrc

I just upgraded from 0.0.4 and my favorite feature, the partial matching, seems to have stopped working. Typing the full names works, but i can no longer use the first character, or at fewer than all of the characters, to get a match.