SIGINT has no effect if tsx is running an infinite loop

[sadkebab]

Precheck

• I searched existing issues before opening this one to avoid duplicates
• I'm able to reproduce this issue and prove it with a minimal reproduction
• I understand this is not a place to ask for free debugging support

Problem

You have a file called file.ts with an infinite loop in it like while(true){}.
By running tsx file.ts you won't be able to stop the execution of tsx by sending a SIGINT (for example with CTRL+C) and the process will run indefinitely until it receives another signal like a SIGQUIT or a SIGSTOP.

Expected behavior

tsx should stop the execution after the SIGINT.

Minimal reproduction URL

https://stackblitz.com/edit/node-fc7ukf?file=index.ts

Version

v4.1.3

Node.js version

v20.7.0

Package manager

pnpm

Operating system

macOS

Contributions

• I plan to open a pull request for this issue
• I plan to make a financial contribution to this project

[sadkebab]

The main issue that this behaviour created to me was that, by defining a script in a package.json like
"scripts": { "test": "tsx file.ts" } where file.ts would run an infinite loop, after executing it with pnpm test if I sent a couple of SIGINT by keyboard shortcut the script would quit... but the child process spawned by tsx was still running in the background, eating 100% cpu and draining the battery of my laptop.

[privatenumber]

🎉 This issue has been resolved in v4.4.0

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