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# (c) 2014 Michael DeHaan, <michael@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 six import iteritems, string_types
import re
from ansible.template import Templar
from ansible.template.safe_eval import safe_eval
__all__ = ['listify_lookup_plugin_terms']
LOOKUP_REGEX = re.compile(r'lookup\s*\(')
def listify_lookup_plugin_terms(terms, variables, loader):
if isinstance(terms, basestring):
# someone did:
# with_items: alist
# OR
# with_items: {{ alist }}
stripped = terms.strip()
templar = Templar(loader=loader, variables=variables)
if not (stripped.startswith('{') or stripped.startswith('[')) and not stripped.startswith("/") and not stripped.startswith('set([') and not LOOKUP_REGEX.search(terms):
# if not already a list, get ready to evaluate with Jinja2
# not sure why the "/" is in above code :)
try:
new_terms = templar.template("{{ %s }}" % terms)
if isinstance(new_terms, basestring) and "{{" in new_terms:
pass
else:
terms = new_terms
except:
pass
else:
terms = templar.template(terms)
if '{' in terms or '[' in terms:
# Jinja2 already evaluated a variable to a list.
# Jinja2-ified list needs to be converted back to a real type
return safe_eval(terms)
if isinstance(terms, basestring):
terms = [ terms ]
return terms
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