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# (c) 2015, Alejandro Guirao <lekumberri@gmail.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/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import shelve
from ansible.errors import AnsibleError
from ansible.plugins.lookup import LookupBase
from ansible.module_utils._text import to_bytes, to_text
class LookupModule(LookupBase):
def read_shelve(self, shelve_filename, key):
"""
Read the value of "key" from a shelve file
"""
d = shelve.open(to_bytes(shelve_filename))
res = d.get(key, None)
d.close()
return res
def run(self, terms, variables=None, **kwargs):
if not isinstance(terms, list):
terms = [terms]
ret = []
for term in terms:
paramvals = {"file": None, "key": None}
params = term.split()
try:
for param in params:
name, value = param.split('=')
assert(name in paramvals)
paramvals[name] = value
except (ValueError, AssertionError) as e:
# In case "file" or "key" are not present
raise AnsibleError(e)
key = paramvals['key']
# Search also in the role/files directory and in the playbook directory
shelvefile = self.find_file_in_search_path(variables, 'files', paramvals['file'])
if shelvefile:
res = self.read_shelve(shelvefile, key)
if res is None:
raise AnsibleError("Key %s not found in shelve file %s" % (key, file))
# Convert the value read to string
ret.append(to_text(res))
break
else:
raise AnsibleError("Could not locate shelve file in lookup: %s" % file)
return ret
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