cli hangs when running `npm install`

[aks-]

Current Behavior:

I am trying to migrate a repository from yarn to npm, until now I was seeing output and resolving all the peer deps. But every now and then the cli hangs and does not output anything whatsoever. I have to kill the process to get out of it.

Expected Behavior:

Either an error output or deps should be installed.

Steps To Reproduce:

Because I am working on private repo, I can not provide the package.json

1. when I run 'npm i'
2. I see and it hangs here

⸨░░░░░░░░░░░░░░░░░░⸩ ⠧ idealTree:xxx-frontend: sill idealTree buildDeps
⸨        ░░░░░░░░░░⸩ ⠋ idealTree:warning: timing idealTree:node_modules/react-router/node_modules/warning Completed in 0ms

Environment:

• OS: OS X v10.14.4
• Node: v10.18.1
• npm: 7.0.0

[ljharb]

Can you try with npm v7.0.2?

[aks-]

Can you try with npm v7.0.2?

That seems to work! :s thank you

[klesun]

I have same problem with 7.13.0 and 7.15.1 on ubuntu with such package.json in a clean working copy without package.lock or node_modules:

{
  "name": "npm-seven-issue",
  "version": "0.0.1",
  "devDependencies": {
    "npm-seven-issue-dep": "git+ssh://git@gitlab.com/klesun/npm-seven-issue-dep#5f1b313978986974d4364585e6bd3689276f1697"
  }
}

It just freezes at:

[....................] \ idealTree.pql-box: still idealTree buildDeps

In npm 6.14.13 npm install of this project worked without problems

Upd.: oh, it does eventually end on 7.13.0, after 1m13,013s. Some network timeout perhaps?

klesun@kunkka:~/gits/pql-box$ time npm i
added 1 package, and audited 2 packages in 1m
found 0 vulnerabilities
real	1m13,013s
user	0m1,555s
sys	0m0,253s

On 6.14.13 same project clean install ends in 0m2,474s:

klesun@kunkka:~/gits/pql-box$ time npm i
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN ololo@0.0.1 No repository field.
npm WARN ololo@0.0.1 No license field.
added 1 package and audited 1 package in 2.004s
found 0 vulnerabilities
real	0m2,474s
user	0m0,694s
sys	0m0,100s

@ljharb, npm install became 30 times slower, it's a regression introduced in npm v7, is it?

[klesun]

Filed a minimal reproduction repo: https://gitlab.com/klesun/npm-seven-issue/-/blob/main/README.md

[ljharb]

@klesun can you file a new issue for this?

[klesun]

@ljharb yes!
#3359