`tsr generate` doesn't generate `routeTree.gen.ts` after `router-cli@1.166.9`

[2paperstar]

Which project does this relate to?

Router

Describe the bug

tsr cli not working

tsr --help command doesn't generate any outputs

so, tsr generate not producing routeTree.gen.ts file.

Your Example Website or App

no example required

Steps to Reproduce the Bug or Issue

1. make new project with bunx @tanstack/cli create . --router-only
2. add cli with bun add -D @tanstack/router-cli@1.166.9 (latest version also has bug)
3. run cli with bunx tsr generate
4. check src directory ls src/routeTree.gen.ts
5. There's no routeTree.gen.ts file

Expected behavior

routeTree.gen.ts file generated when tsr generate

tsr --help should print help messages

Screenshots or Videos

Platform

• OK version: router-cli@1.166.8
• bug version: router-cli@1.166.9, router-cli@1.166.10, router-cli@1.166.11

Additional context

No response

[Etsija]

I can confirm this also breaks the minor version bump dependency update in our repository.

[Etsija]

The title of this ticket is a bit misleading, as the problem was introduced in 1.166.9, so technically, the route tree isn't generated properly from 1.166.8 onwards.

Seems like the regression was introduced in PR #6923 where the only functional change to router-cli was in this import:

import * as yargs from 'yargs' -> 
import yargs from 'yargs'

I have a hunch that the vite-config switch changed something, which made the yargs import/invocation incompatible, so tsr generate silently does nothing. I don't dare creating a PR out of this, as I am lacking the knowledge of inner workings of the repo, but will write the information here, in hopes the contributor of the PR #6923 (@birkskyum) maybe will spot the error and could kindly produce a fix, as tsr generate silently failing is pretty fatal.