ansible/lib/ansible/utils/helpers.py

# (c) 2016, Ansible by Red Hat <info@ansible.com>
#
# This file is part of Ansible
#
# Ansible 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 3 of the License, or
# (at your option) any later version.
#
# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.

# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

from ansible.compat.six import string_types

def pct_to_int(value, num_items, min_value=1):
    '''
    Converts a given value to a percentage if specified as "x%",
    otherwise converts the given value to an integer. 
    '''
    if isinstance(value, string_types) and value.endswith('%'):
        value_pct = int(value.replace("%",""))
        return int((value_pct/100.0) * num_items) or min_value
    else:
        return int(value)