mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-23 21:30:40 +00:00
79 lines
2.7 KiB
Python
79 lines
2.7 KiB
Python
|
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
|
||
|
|
# Copyright: (c) 2017, Ansible Project
|
||
|
|
# Copyright: (c) 2018, Ansible Project
|
||
|
|
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
|
||
|
|
|
||
|
|
# Make coding more python3-ish
|
||
|
|
from __future__ import (absolute_import, division, print_function)
|
||
|
|
__metaclass__ = type
|
||
|
|
|
||
|
|
import json
|
||
|
|
|
||
|
|
from yaml import YAMLError
|
||
|
|
|
||
|
|
from ansible.errors import AnsibleParserError
|
||
|
|
from ansible.errors.yaml_strings import YAML_SYNTAX_ERROR
|
||
|
|
from ansible.module_utils._text import to_native
|
||
|
|
from ansible.parsing.yaml.loader import AnsibleLoader
|
||
|
|
from ansible.parsing.yaml.objects import AnsibleBaseYAMLObject
|
||
|
|
from ansible.parsing.ajson import AnsibleJSONDecoder
|
||
|
|
|
||
|
|
|
||
|
|
__all__ = ('from_yaml',)
|
||
|
|
|
||
|
|
|
||
|
|
def _handle_error(yaml_exc, file_name, show_content):
|
||
|
|
'''
|
||
|
|
Optionally constructs an object (AnsibleBaseYAMLObject) to encapsulate the
|
||
|
|
file name/position where a YAML exception occurred, and raises an AnsibleParserError
|
||
|
|
to display the syntax exception information.
|
||
|
|
'''
|
||
|
|
|
||
|
|
# if the YAML exception contains a problem mark, use it to construct
|
||
|
|
# an object the error class can use to display the faulty line
|
||
|
|
err_obj = None
|
||
|
|
if hasattr(yaml_exc, 'problem_mark'):
|
||
|
|
err_obj = AnsibleBaseYAMLObject()
|
||
|
|
err_obj.ansible_pos = (file_name, yaml_exc.problem_mark.line + 1, yaml_exc.problem_mark.column + 1)
|
||
|
|
|
||
|
|
err_msg = getattr(yaml_exc, 'problem', '')
|
||
|
|
|
||
|
|
raise AnsibleParserError(YAML_SYNTAX_ERROR % to_native(err_msg), obj=err_obj, show_content=show_content, orig_exc=yaml_exc)
|
||
|
|
|
||
|
|
|
||
|
|
def _safe_load(stream, file_name=None, vault_secrets=None):
|
||
|
|
''' Implements yaml.safe_load(), except using our custom loader class. '''
|
||
|
|
|
||
|
|
loader = AnsibleLoader(stream, file_name, vault_secrets)
|
||
|
|
try:
|
||
|
|
return loader.get_single_data()
|
||
|
|
finally:
|
||
|
|
try:
|
||
|
|
loader.dispose()
|
||
|
|
except AttributeError:
|
||
|
|
pass # older versions of yaml don't have dispose function, ignore
|
||
|
|
|
||
|
|
|
||
|
|
def from_yaml(data, file_name='<string>', show_content=True, vault_secrets=None):
|
||
|
|
'''
|
||
|
|
Creates a python datastructure from the given data, which can be either
|
||
|
|
a JSON or YAML string.
|
||
|
|
'''
|
||
|
|
new_data = None
|
||
|
|
|
||
|
|
try:
|
||
|
|
# in case we have to deal with vaults
|
||
|
|
AnsibleJSONDecoder.set_secrets(vault_secrets)
|
||
|
|
|
||
|
|
# we first try to load this data as JSON.
|
||
|
|
# Fixes issues with extra vars json strings not being parsed correctly by the yaml parser
|
||
|
|
new_data = json.loads(data, cls=AnsibleJSONDecoder)
|
||
|
|
except Exception:
|
||
|
|
# must not be JSON, let the rest try
|
||
|
|
try:
|
||
|
|
new_data = _safe_load(data, file_name=file_name, vault_secrets=vault_secrets)
|
||
|
|
except YAMLError as yaml_exc:
|
||
|
|
_handle_error(yaml_exc, file_name, show_content)
|
||
|
|
|
||
|
|
return new_data
|