Add shelvefile lookup plugin

pull/11567/head
Alejandro Guirao 10 years ago
parent f40b66d841
commit 8efc42d993

@ -0,0 +1,81 @@
# (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/>.
import shelve
import os
from ansible import utils, errors
class LookupModule(object):
def __init__(self, basedir=None, **kwargs):
self.basedir = basedir
def read_shelve(self, shelve_filename, key):
"""
Read the value of "key" from a shelve file
"""
d = shelve.open(shelve_filename)
res = d.get(key, None)
d.close()
return res
def run(self, terms, inject=None, **kwargs):
terms = utils.listify_lookup_plugin_terms(terms, self.basedir, inject)
ret = []
if not isinstance(terms, list):
terms = [ terms ]
for term in terms:
playbook_path = None
relative_path = None
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), e:
# In case "file" or "key" are not present
raise errors.AnsibleError(e)
file = paramvals['file']
key = paramvals['key']
basedir_path = utils.path_dwim(self.basedir, file)
# Search also in the role/files directory and in the playbook directory
if '_original_file' in inject:
relative_path = utils.path_dwim_relative(inject['_original_file'], 'files', file, self.basedir, check=False)
if 'playbook_dir' in inject:
playbook_path = os.path.join(inject['playbook_dir'], file)
for path in (basedir_path, relative_path, playbook_path):
if path and os.path.exists(path):
res = self.read_shelve(path, key)
if res is None:
raise errors.AnsibleError("Key %s not found in shelve file %s" % (key, file))
# Convert the value read to string
ret.append(str(res))
break
else:
raise errors.AnsibleError("Could not locate shelve file in lookup: %s" % file)
return ret
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