ts-node doesn't handle graceful shutdown properly

[endel]

Hey there,

I've created a repository that reproduces this issue here: https://github.com/endel/ts-node-graceful-shutdown-issue

All versions of ts-node doesn't have the expected behaviour when gracefully shutting down a Node.js application.

ts-node behaviour:

Process is dettached from terminal as soon as SIGINT is received.

./node_modules/.bin/ts-node index.ts
^CGraceful shutdown started...

[21:22:41] endel:~/Projects/ts-node-graceful-shutdown-issue [master #]
$ Done, let's finish!

node behaviour:

Process is dettached from terminal only after process.exit() is called.

$ node index.js
^CGraceful shutdown started...
Done, let's finish!
[21:23:34] endel:~/Projects/ts-node-graceful-shutdown-issue [master #]

I believe ts-node ideally should behave exactly how node does, shouldn't it?

Thanks

[blakeembrey]

Closing with #419. Let me know if it doesn't solve your issue!