Adding a confirmation prompt for dashboards upload

cmd/dashboard.go

@@ -1,12 +1,14 @@
 package cmd
 
 import (
+	"bufio"
 	"fmt"
 	"github.com/esnet/gdg/internal/apphelpers"
 	"github.com/esnet/gdg/internal/service"
 	"github.com/jedib0t/go-pretty/v6/table"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
+	"os"
 	"strings"
 )
 
@@ -48,6 +50,18 @@ var clearDashboards = &cobra.Command{
 	},
 }
 
+// askForConfirmation prompts user to confirm operation
+func askForConfirmation(msg string) {
+	fmt.Printf(msg)
+	r := bufio.NewReader(os.Stdin)
+	ans, _ := r.ReadString('\n')
+	response := strings.ToLower(ans)
+	if response[0] != 'y' && response[0] != 'Y' {
+		log.Infof("Goodbye")
+		os.Exit(0)
+	}
+}
+
 var uploadDashboard = &cobra.Command{
 	Use:     "upload",
 	Short:   "upload all dashboards to grafana",
@@ -56,6 +70,13 @@ var uploadDashboard = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 
 		filter := service.NewDashboardFilter(parseDashboardGlobalFlags(cmd)...)
+
+		confirm, _ := cmd.Flags().GetBool("skip-confirmation")
+		if confirm {
+			askForConfirmation(fmt.Sprintf("WARNING: this will delete all dashboards from the monitored folders: '%s' "+
+				"(or all folders if ignore_dashboard_filters is set to true) and upload your local copy.  Do you wish to "+
+				"continue (y/n)", strings.Join(apphelpers.GetCtxDefaultGrafanaConfig().GetMonitoredFolders(), ", ")))
+		}
 		grafanaSvc.ExportDashboards(filter)
 
 		tableObj.AppendHeader(table.Row{"Title", "id", "folder", "UID"})
@@ -120,6 +141,7 @@ var listDashboards = &cobra.Command{
 
 func init() {
 	rootCmd.AddCommand(dashboard)
+	dashboard.PersistentFlags().BoolP("skip-confirmation", "", true, "when set to true, bypass confirmation prompts")
 	dashboard.PersistentFlags().StringP("dashboard", "d", "", "filter by dashboard slug")
 	dashboard.PersistentFlags().StringP("folder", "f", "", "Filter by Folder Name (Quotes in names not supported)")
 	dashboard.PersistentFlags().StringSliceP("tags", "t", []string{}, "Filter by Tags (does not apply on upload)")