Boolean flags with cobra

main.go

package main

import (
	"fmt"
	"os"

	"github.com/spf13/cobra"
)

var cfgFile string
var verbose bool

var rootCmd = &cobra.Command{
	Use: "cobra",
	Run: func(cmd *cobra.Command, args []string) {
		fmt.Println(verbose) // call main.go --verbose=false or -v=false prints false here
	},
}

func init() {
	rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", true, "verbose output")
}

func main() {
	if err := rootCmd.Execute(); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}