ansible-later/env_27/lib/python2.7/site-packages/ansible/plugins/lookup/template.py

95 lines
3.7 KiB
Python
Raw Normal View History

# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
# (c) 2012-17 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
#
# 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
DOCUMENTATION = """
lookup: template
author: Michael DeHaan <michael.dehaan@gmail.com>
version_added: "0.9"
short_description: retrieve contents of file after templating with Jinja2
description:
- this is mostly a noop, to be used as a with_list loop when you dont want the content transformed in any way.
options:
_terms:
description: list of files to template
"""
EXAMPLES = """
- name: show templating results
debug: msg="{{ lookup('template', './some_template.j2') }}
"""
RETURN = """
_raw:
description: file(s) content after templating
"""
import os
from ansible.errors import AnsibleError
from ansible.plugins.lookup import LookupBase
from ansible.module_utils._text import to_bytes, to_text
from ansible.template import generate_ansible_template_vars
try:
from __main__ import display
except ImportError:
from ansible.utils.display import Display
display = Display()
class LookupModule(LookupBase):
def run(self, terms, variables, **kwargs):
convert_data_p = kwargs.get('convert_data', True)
lookup_template_vars = kwargs.get('template_vars', {})
ret = []
for term in terms:
display.debug("File lookup term: %s" % term)
lookupfile = self.find_file_in_search_path(variables, 'templates', term)
display.vvvv("File lookup using %s as file" % lookupfile)
if lookupfile:
with open(to_bytes(lookupfile, errors='surrogate_or_strict'), 'rb') as f:
template_data = to_text(f.read(), errors='surrogate_or_strict')
# set jinja2 internal search path for includes
searchpath = variables.get('ansible_search_path')
if searchpath:
# our search paths aren't actually the proper ones for jinja includes.
# We want to search into the 'templates' subdir of each search path in
# addition to our original search paths.
newsearchpath = []
for p in searchpath:
newsearchpath.append(os.path.join(p, 'templates'))
newsearchpath.append(p)
searchpath = newsearchpath
else:
searchpath = [self._loader._basedir, os.path.dirname(lookupfile)]
self._templar.environment.loader.searchpath = searchpath
# The template will have access to all existing variables,
# plus some added by ansible (e.g., template_{path,mtime}),
# plus anything passed to the lookup with the template_vars=
# argument.
vars = variables.copy()
vars.update(generate_ansible_template_vars(lookupfile))
vars.update(lookup_template_vars)
self._templar.set_available_variables(vars)
# do the templating
res = self._templar.template(template_data, preserve_trailing_newlines=True,
convert_data=convert_data_p, escape_backslashes=False)
ret.append(res)
else:
raise AnsibleError("the template file %s could not be found for the lookup" % term)
return ret