main.go

package main

import (
	"errors"
	"fmt"
	"os"
	"path"
	"runtime/debug"
	"time"
)

const appVersion = "0.1.3"

func main() {

	defer panicRecover()

	Run()
}

func Run() {
	fmt.Println("Working...")
	time.Sleep(5 * time.Second)

	err := errors.New("im an error")
	panic(err)
}

func panicRecover() {
	recovered := recover()
	if recovered == nil {
		return
	}

	exe, err := os.Executable()
	if err != nil {
		return
	}
	dir := path.Dir(exe)

	appError, ok := recovered.(error)
	if ok {
		timestamp := time.Now().String()
		content := fmt.Sprintf("%s\nVersion: %s\n\nError: %s\n%s", timestamp, appVersion, appError.Error(), string(debug.Stack()))
		_ = os.WriteFile(path.Join(dir, "error-log.txt"), []byte(content), 0777)
	}
}