[BUG] `npm install` started to hang on "still idealTree buildDeps" for 60 seconds if there are dependencies pointing to specific gitlab repository url (a regression compared to npm v6)

Is there an existing issue for this?

• I have searched the existing issues

See https://github.com/npm/cli/issues/1991#issuecomment-853984404

Current Behavior

npm install in a fresh project with an explicit git+ssh dependency on a gitlab repo (minimal example) takes 60+ seconds, seemingly it waits for some random network timeout before proceeding the installation.

Expected Behavior

npm install should take 2-3 seconds to install dependencies of the project in minimal example like it did in npm v6.

Steps To Reproduce

See https://gitlab.com/klesun/npm-seven-issue

I reproduced this hang in Ubuntu 20.04 with npm 7.15.1 as well as MacBook Pro 2019 with npm 7.15.1

git clone https://gitlab.com/klesun/npm-seven-issue.git
cd npm-seven-issue
npm install

_package.json

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

If you are using npm version prior to v7.x, for example v6.14.13, npm install should be done within 2-3 seconds.

If you are using npm version v7.0.0 or later, for example 7.15.1, npm install will hang for 60+ seconds with following text:

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

Note, you need to remove package-lock.json and node_modules prior to retrying the npm install, otherwise issue won't reproduce.

Environment

• OS: Ubuntu 20.04
• Node: v16.2.0
• npm: 7.15.1

as well as

• OS: MacBook Pro 2019
• Node: v15.11.0
• npm: 7.15.1

Start with the minimal repository's package.json and reproduce the issue by removing package-lock.json and node_modules, then running npm install with npm 7.15.1. Compare the behavior with npm 6.14.13 and inspect the dependency-resolution path for the git+ssh GitLab dependency. Done means the example installs in roughly 2–3 seconds without the 60-second idealTree delay.