capture control-c with confirmation

main.go

package main

import (
	"bufio"
	"fmt"
	"os"
	"os/signal"
	"strings"
	"syscall"
	"time" // or "runtime"
)

func cleanup() {
	fmt.Println("cleanup")
}

func main() {
	c := make(chan os.Signal)
	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
	handleSignal(c)

	for {
		fmt.Println("sleeping...")
		time.Sleep(3 * time.Second) // or runtime.Gosched() or similar per @misterbee
	}
}

func handleSignal(c chan os.Signal) {
	go func() {
		<-c
		fmt.Println("\r- Ctrl+C pressed in Terminal")
		fmt.Println("\r- Are you sure you want to stop it? write yes to close it. Press enter to continue")
		reader := bufio.NewReader(os.Stdin)
		text, _ := reader.ReadString('\n')
		text = strings.Replace(text, "\n", "", -1)
		if strings.Compare("yes", text) == 0 {
			cleanup()
			os.Exit(1)
		}
		handleSignal(c)
	}()
}

package main

import (
	"bufio"
	"fmt"
	"os"
	"os/signal"
	"strings"
	"sync"
)

func main() {
	c := make(chan os.Signal)
	signal.Notify(c, os.Interrupt)

	wg := sync.WaitGroup{}
	wg.Add(1)

	go func() {
		for {
			<-c

			fmt.Println("\r- Ctrl+C pressed in Terminal")
			fmt.Println("\r- Are you sure you want to stop it? write yes to close it. Press enter to continue")
			reader := bufio.NewReader(os.Stdin)
			text, _ := reader.ReadString('\n')
			text = strings.Replace(text, "\n", "", -1)
			if text == "yes" {
				wg.Done()
				break
			}
		}
	}()

	wg.Wait()
}