tsc from node_modules doesn't throw console exception when there are typecheck issues

Question

I added small typecheck command to run during my ci in order to ensure that there are no type errors. It uses tsc from node modules i.e.

./node_modules/.bin/tsc --noEmit;

This runs fine and console logs correct errors however the command itself passes with successful exit code. Ideally I want it to throw an exception and exit with error code.

Is there a flag or some tsconfig option I am missing that allows this?

Answer 1

Ok after fiddling with this for a while I figured out an issue, I was calling ./node_modules/.bin/tsc --noEmit; inside a bash script, so my full setup looked like this

typecheck.sh

#!/bin/sh

./node_modules/.bin/tsc --noEmit;

package.json

{
  "scripts": {
    "typecheck": "typecheck.sh"
  }
}

And because it was within that script, it didn't throw an error, after some research I was able to make it throw correctly by altering my script to include set -e, so in the end this does the trick

#!/bin/sh
set -e

./node_modules/.bin/tsc --noEmit;