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92 lines
3.2 KiB
Python
92 lines
3.2 KiB
Python
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from yaml.constructor import Constructor
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from ansible.parsing.yaml.objects import AnsibleMapping, AnsibleSequence, AnsibleUnicode
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class AnsibleConstructor(Constructor):
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def __init__(self, file_name=None):
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self._ansible_file_name = file_name
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super(AnsibleConstructor, self).__init__()
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def construct_yaml_map(self, node):
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data = AnsibleMapping()
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yield data
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value = self.construct_mapping(node)
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data.update(value)
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data.ansible_pos = self._node_position_info(node)
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def construct_mapping(self, node, deep=False):
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ret = AnsibleMapping(super(Constructor, self).construct_mapping(node, deep))
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ret.ansible_pos = self._node_position_info(node)
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return ret
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def construct_yaml_str(self, node):
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# Override the default string handling function
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# to always return unicode objects
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value = self.construct_scalar(node)
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ret = AnsibleUnicode(value)
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ret.ansible_pos = self._node_position_info(node)
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return ret
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def construct_yaml_seq(self, node):
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data = AnsibleSequence()
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yield data
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data.extend(self.construct_sequence(node))
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data.ansible_pos = self._node_position_info(node)
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def _node_position_info(self, node):
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# the line number where the previous token has ended (plus empty lines)
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# Add one so that the first line is line 1 rather than line 0
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column = node.start_mark.column + 1
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line = node.start_mark.line + 1
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# in some cases, we may have pre-read the data and then
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# passed it to the load() call for YAML, in which case we
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# want to override the default datasource (which would be
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# '<string>') to the actual filename we read in
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datasource = self._ansible_file_name or node.start_mark.name
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return (datasource, line, column)
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AnsibleConstructor.add_constructor(
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u'tag:yaml.org,2002:map',
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AnsibleConstructor.construct_yaml_map)
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AnsibleConstructor.add_constructor(
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u'tag:yaml.org,2002:python/dict',
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AnsibleConstructor.construct_yaml_map)
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AnsibleConstructor.add_constructor(
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u'tag:yaml.org,2002:str',
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AnsibleConstructor.construct_yaml_str)
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AnsibleConstructor.add_constructor(
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u'tag:yaml.org,2002:python/unicode',
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AnsibleConstructor.construct_yaml_str)
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AnsibleConstructor.add_constructor(
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u'tag:yaml.org,2002:seq',
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AnsibleConstructor.construct_yaml_seq)
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