Watch all `.ts` files, run just one?

[untold aspen]

I want to watch all .ts files in my project or namely a few and after changes occurred, run a separate build.ts file

[foggy hornet]

you can watch bun build with --watch and you --watch on normal run refreshes the app on any change to imported file

[untold aspen]

these files are completely separate and none imports into another

here is what I am currently doing to make --watch work

import * as tstl from 'typescript-to-lua'
import './src/mcm'

const scriptsDir = process.cwd() + '/gamedata/scripts/'

export function transpile() {
  tstl.transpileFiles(['./src/mcm.ts'], { extension: '.script', outDir: scriptsDir })
}

index.ts (bun run --watch index.ts)

import { transpile } from './ts-to-lua'

transpile()

the mcm.ts is what I need to trigger the reload upon changing

and it somehow works

[foggy hornet]

you should be able to use the node watch api then right?

[untold aspen]

node watch api?

[foggy hornet]

https://nodejs.org/docs/latest/api/fs.html#fspromiseswatchfilename-options

i believe bun should support