[BUG] Workspaces does not honor install strategy shallow

[sosoba]

Is there an existing issue for this?

• I have searched the existing issues

This issue exists in the latest npm version

• I am using the latest npm

Current Behavior

The install-strategy=shallow parameter affects only the contents of the "root" node_modules directory.

Expected Behavior

Install strategy sholud work both on root and workspace subprojects.

Steps To Reproduce

package.json

{
  "workspaces": ["web"]
}

web/package.json

{
  "name": "web"
}

npm install --install-strategy=shallow --workspace=web vite
ls web/node_modules/

Sholuld display only single vite directory but there are a lot:
'@esbuild'/ '@rollup'/ '@types'/ esbuild/ nanoid/ picocolors/ postcss/ rollup/ source-map-js/ vite/

Environment

• npm: 10.5.0
• Node.js: 20.12.2
• OS Name: Windows
• System Model Name: 11
• npm config:

fetch-retries = 0
update-notifier = false

[wraithgar]

This is because your workspace does not exist on its own in the tree. To npm there is only one tree, and the workspaces themselves are direct deps of the root. From npm's perspective the install is shallow because in node_modules itself the workspace dependencies are not in the root, but under the workspace itself.

As of now this is working as intended.