# Copyright 2018 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
#
# Refer to the README and COPYING files for full details of the license
#

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function

from six.moves import input


def confirm(msg):
    """
    Display a message to the user and wait for confirmation.

    Arguments:
        msg (string) - message to display

    Returns:
        True if the user confirmed the message, False otherwise
    """
    while True:
        try:
            res = input(msg)
            res = res.strip().lower()
        except KeyboardInterrupt:
            print()
            return False
        if res in ("no", ""):
            return False
        if res == "yes":
            return True
