From 4faa7f927149a5c4ef7a03523f7bc14523cb9baa Mon Sep 17 00:00:00 2001 From: Stuart Mackie Date: Fri, 7 Oct 2016 12:24:58 -0700 Subject: Charms for Contrail 3.1 with Mitaka Change-Id: Id37f3b9743d1974e31fcd7cd9c54be41bb0c47fb Signed-off-by: Stuart Mackie --- .../keepalived/hooks/charmhelpers/core/strutils.py | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 charms/trusty/keepalived/hooks/charmhelpers/core/strutils.py (limited to 'charms/trusty/keepalived/hooks/charmhelpers/core/strutils.py') diff --git a/charms/trusty/keepalived/hooks/charmhelpers/core/strutils.py b/charms/trusty/keepalived/hooks/charmhelpers/core/strutils.py new file mode 100644 index 0000000..a2a784a --- /dev/null +++ b/charms/trusty/keepalived/hooks/charmhelpers/core/strutils.py @@ -0,0 +1,42 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +# Copyright 2014-2015 Canonical Limited. +# +# This file is part of charm-helpers. +# +# charm-helpers is free software: you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License version 3 as +# published by the Free Software Foundation. +# +# charm-helpers 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 Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with charm-helpers. If not, see . + +import six + + +def bool_from_string(value): + """Interpret string value as boolean. + + Returns True if value translates to True otherwise False. + """ + if isinstance(value, six.string_types): + value = six.text_type(value) + else: + msg = "Unable to interpret non-string value '%s' as boolean" % (value) + raise ValueError(msg) + + value = value.strip().lower() + + if value in ['y', 'yes', 'true', 't', 'on']: + return True + elif value in ['n', 'no', 'false', 'f', 'off']: + return False + + msg = "Unable to interpret string value '%s' as boolean" % (value) + raise ValueError(msg) -- cgit 1.2.3-korg