Fix #155: Destroy/Login commands didn't scan lines correctly

apps/destroy.go

@@ -1,17 +1,21 @@
 package apps
 
 import (
+	"bufio"
 	"fmt"
+	"os"
 
 	"github.com/Scalingo/cli/Godeps/_workspace/src/github.com/Scalingo/go-scalingo"
 	"github.com/Scalingo/cli/Godeps/_workspace/src/gopkg.in/errgo.v1"
 	"github.com/Scalingo/cli/io"
 )
 
 func Destroy(appName string) error {
-	var validationName string
 	fmt.Printf("/!\\ You're going to delete %s, this operation is irreversible.\nTo confirm type the name of the application: ", appName)
-	fmt.Scan(&validationName)
+	validationName, err := bufio.NewReader(os.Stdin).ReadString('\n')
+	if err != nil {
+		return errgo.Mask(err, errgo.Any)
+	}
 	if validationName != appName {
 		return errgo.Newf("'%s' is not '%s', aborting…\n", validationName, appName)
 	}

config/auth.go

@@ -1,6 +1,7 @@
 package config
 
 import (
+	"bufio"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -107,15 +108,18 @@ func (a *CliAuthenticator) RemoveAuth() error {
 
 func tryAuth() (*users.User, error) {
 	var login string
+	var err error
+
 	for login == "" {
 		fmt.Print("Username or email: ")
-		_, err := fmt.Scanln(&login)
+		login, err = bufio.NewReader(os.Stdin).ReadString('\n')
 		if err != nil {
 			if strings.Contains(err.Error(), "unexpected newline") {
 				continue
 			}
 			return nil, errgo.Mask(err, errgo.Any)
 		}
+		login = strings.TrimRight(login, "\n")
 	}
 
 	password, err := term.Password("Password: ")