Be caseful with os.Exit

[shaardie]

Unfortunately os.Exit simply exits the program where it is called. So it stops every kind of reasonable teardown. So think about only using it on the main of your program to make sure everything shuts down correctly.

Funnily enough, most of my golang programs ends with a structure like this

package main

import (
	"os"
)

func mainWithError() error {
	// Here should be program...
	return nil
}

func main() {
	err := mainWithError()
	if err != nil {
		os.Exit(1)
	}
}