[BUG] `npm version` fails when using `--include-workspace-root` with no root package.json name

[msrose]

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

Running npm version <inc> --include-workspace-root --workspaces throws npm ERR! Cannot read properties of undefined (reading '0') if the workspace root doesn't have a name field in its package.json.

Expected Behavior

The version command should not throw an error if the workspace root doesn't have a name field.

Steps To Reproduce

package.json:

{
  "workspaces": [
    "packages/*"
  ],
  "version": "1.3.0"
}

packages/one/package.json:

{
  "name": "one",
  "version": "1.3.0"
}

Running npm version minor --include-workspace-root --workspaces gives the following error:

undefined
v1.4.0
one
v1.4.0
npm ERR! Cannot read properties of undefined (reading '0')

Upon adding a name field to the workspace root, the command succeeds:

package.json:

{
  "name": "root",
  "workspaces": [
    "packages/*"
  ],
  "version": "1.4.0"
}

npm version minor --include-workspace-root --workspaces:

root
v1.5.0
one
v1.5.0

Environment

• npm: 8.19.2
• Node.js: v16.17.0
• OS Name: macOS Monterey 12.5.1
• System Model Name: Macbook Pro
• npm config:

; node bin location = /Users/msrose/.nvm/versions/node/v16.17.0/bin/node
; node version = v16.17.0
; npm local prefix = /Users/msrose/test-stuff/test-npm-bug
; npm version = 8.19.2
; cwd = /Users/msrose/test-stuff/test-npm-bug
; HOME = /Users/msrose

[wraithgar]

the name field is required in the package.json. The docs are not currently consistent about this, but there is an issue open to clean that up npm/documentation#134