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1806 lines
69 KiB
1806 lines
69 KiB
# coding: utf-8
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from __future__ import print_function, absolute_import, division
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import datetime
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import base64
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import binascii
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import re
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import sys
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import types
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import warnings
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# fmt: off
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from .error import (MarkedYAMLError, MarkedYAMLFutureWarning,
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MantissaNoDotYAML1_1Warning)
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from .nodes import * # NOQA
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from .nodes import (SequenceNode, MappingNode, ScalarNode)
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from .compat import (utf8, builtins_module, to_str, PY2, PY3, # NOQA
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text_type, nprint, nprintf, version_tnf)
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from .compat import ordereddict, Hashable, MutableSequence # type: ignore
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from .compat import MutableMapping # type: ignore
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from .comments import * # NOQA
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from .comments import (CommentedMap, CommentedOrderedMap, CommentedSet,
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CommentedKeySeq, CommentedSeq, TaggedScalar,
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CommentedKeyMap)
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from .scalarstring import (SingleQuotedScalarString, DoubleQuotedScalarString,
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LiteralScalarString, FoldedScalarString,
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PlainScalarString, ScalarString,)
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from .scalarint import ScalarInt, BinaryInt, OctalInt, HexInt, HexCapsInt
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from .scalarfloat import ScalarFloat
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from .scalarbool import ScalarBoolean
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from .timestamp import TimeStamp
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from .util import RegExp
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if False: # MYPY
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from typing import Any, Dict, List, Set, Generator, Union, Optional # NOQA
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__all__ = ['BaseConstructor', 'SafeConstructor', 'Constructor',
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'ConstructorError', 'RoundTripConstructor']
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# fmt: on
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class ConstructorError(MarkedYAMLError):
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pass
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class DuplicateKeyFutureWarning(MarkedYAMLFutureWarning):
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pass
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class DuplicateKeyError(MarkedYAMLFutureWarning):
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pass
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class BaseConstructor(object):
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yaml_constructors = {} # type: Dict[Any, Any]
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yaml_multi_constructors = {} # type: Dict[Any, Any]
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def __init__(self, preserve_quotes=None, loader=None):
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# type: (Optional[bool], Any) -> None
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self.loader = loader
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if self.loader is not None and getattr(self.loader, '_constructor', None) is None:
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self.loader._constructor = self
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self.loader = loader
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self.yaml_base_dict_type = dict
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self.yaml_base_list_type = list
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self.constructed_objects = {} # type: Dict[Any, Any]
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self.recursive_objects = {} # type: Dict[Any, Any]
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self.state_generators = [] # type: List[Any]
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self.deep_construct = False
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self._preserve_quotes = preserve_quotes
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self.allow_duplicate_keys = version_tnf((0, 15, 1), (0, 16))
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@property
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def composer(self):
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# type: () -> Any
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if hasattr(self.loader, 'typ'):
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return self.loader.composer
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try:
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return self.loader._composer
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except AttributeError:
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sys.stdout.write('slt {}\n'.format(type(self)))
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sys.stdout.write('slc {}\n'.format(self.loader._composer))
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sys.stdout.write('{}\n'.format(dir(self)))
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raise
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@property
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def resolver(self):
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# type: () -> Any
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if hasattr(self.loader, 'typ'):
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return self.loader.resolver
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return self.loader._resolver
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def check_data(self):
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# type: () -> Any
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# If there are more documents available?
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return self.composer.check_node()
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def get_data(self):
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# type: () -> Any
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# Construct and return the next document.
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if self.composer.check_node():
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return self.construct_document(self.composer.get_node())
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def get_single_data(self):
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# type: () -> Any
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# Ensure that the stream contains a single document and construct it.
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node = self.composer.get_single_node()
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if node is not None:
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return self.construct_document(node)
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return None
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def construct_document(self, node):
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# type: (Any) -> Any
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data = self.construct_object(node)
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while bool(self.state_generators):
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state_generators = self.state_generators
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self.state_generators = []
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for generator in state_generators:
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for _dummy in generator:
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pass
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self.constructed_objects = {}
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self.recursive_objects = {}
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self.deep_construct = False
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return data
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def construct_object(self, node, deep=False):
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# type: (Any, bool) -> Any
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"""deep is True when creating an object/mapping recursively,
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in that case want the underlying elements available during construction
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"""
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if node in self.constructed_objects:
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return self.constructed_objects[node]
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if deep:
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old_deep = self.deep_construct
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self.deep_construct = True
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if node in self.recursive_objects:
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return self.recursive_objects[node]
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# raise ConstructorError(
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# None, None, 'found unconstructable recursive node', node.start_mark
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# )
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self.recursive_objects[node] = None
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data = self.construct_non_recursive_object(node)
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self.constructed_objects[node] = data
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del self.recursive_objects[node]
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if deep:
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self.deep_construct = old_deep
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return data
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def construct_non_recursive_object(self, node, tag=None):
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# type: (Any, Optional[str]) -> Any
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constructor = None # type: Any
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tag_suffix = None
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if tag is None:
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tag = node.tag
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if tag in self.yaml_constructors:
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constructor = self.yaml_constructors[tag]
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else:
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for tag_prefix in self.yaml_multi_constructors:
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if tag.startswith(tag_prefix):
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tag_suffix = tag[len(tag_prefix) :]
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constructor = self.yaml_multi_constructors[tag_prefix]
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break
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else:
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if None in self.yaml_multi_constructors:
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tag_suffix = tag
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constructor = self.yaml_multi_constructors[None]
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elif None in self.yaml_constructors:
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constructor = self.yaml_constructors[None]
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elif isinstance(node, ScalarNode):
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constructor = self.__class__.construct_scalar
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elif isinstance(node, SequenceNode):
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constructor = self.__class__.construct_sequence
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elif isinstance(node, MappingNode):
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constructor = self.__class__.construct_mapping
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if tag_suffix is None:
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data = constructor(self, node)
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else:
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data = constructor(self, tag_suffix, node)
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if isinstance(data, types.GeneratorType):
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generator = data
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data = next(generator)
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if self.deep_construct:
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for _dummy in generator:
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pass
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else:
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self.state_generators.append(generator)
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return data
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def construct_scalar(self, node):
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# type: (Any) -> Any
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if not isinstance(node, ScalarNode):
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raise ConstructorError(
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None, None, 'expected a scalar node, but found %s' % node.id, node.start_mark
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)
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return node.value
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def construct_sequence(self, node, deep=False):
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# type: (Any, bool) -> Any
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"""deep is True when creating an object/mapping recursively,
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in that case want the underlying elements available during construction
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"""
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if not isinstance(node, SequenceNode):
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raise ConstructorError(
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None, None, 'expected a sequence node, but found %s' % node.id, node.start_mark
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)
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return [self.construct_object(child, deep=deep) for child in node.value]
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def construct_mapping(self, node, deep=False):
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# type: (Any, bool) -> Any
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"""deep is True when creating an object/mapping recursively,
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in that case want the underlying elements available during construction
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"""
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if not isinstance(node, MappingNode):
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raise ConstructorError(
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None, None, 'expected a mapping node, but found %s' % node.id, node.start_mark
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)
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total_mapping = self.yaml_base_dict_type()
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if getattr(node, 'merge', None) is not None:
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todo = [(node.merge, False), (node.value, False)]
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else:
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todo = [(node.value, True)]
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for values, check in todo:
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mapping = self.yaml_base_dict_type() # type: Dict[Any, Any]
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for key_node, value_node in values:
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# keys can be list -> deep
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key = self.construct_object(key_node, deep=True)
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# lists are not hashable, but tuples are
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if not isinstance(key, Hashable):
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if isinstance(key, list):
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key = tuple(key)
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if PY2:
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try:
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hash(key)
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except TypeError as exc:
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raise ConstructorError(
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'while constructing a mapping',
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node.start_mark,
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'found unacceptable key (%s)' % exc,
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key_node.start_mark,
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)
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else:
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if not isinstance(key, Hashable):
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raise ConstructorError(
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'while constructing a mapping',
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node.start_mark,
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'found unhashable key',
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key_node.start_mark,
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)
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value = self.construct_object(value_node, deep=deep)
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if check:
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if self.check_mapping_key(node, key_node, mapping, key, value):
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mapping[key] = value
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else:
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mapping[key] = value
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total_mapping.update(mapping)
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return total_mapping
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def check_mapping_key(self, node, key_node, mapping, key, value):
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# type: (Any, Any, Any, Any, Any) -> bool
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"""return True if key is unique"""
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if key in mapping:
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if not self.allow_duplicate_keys:
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mk = mapping.get(key)
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if PY2:
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if isinstance(key, unicode):
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key = key.encode('utf-8')
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if isinstance(value, unicode):
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value = value.encode('utf-8')
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if isinstance(mk, unicode):
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mk = mk.encode('utf-8')
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args = [
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'while constructing a mapping',
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node.start_mark,
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'found duplicate key "{}" with value "{}" '
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'(original value: "{}")'.format(key, value, mk),
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key_node.start_mark,
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"""
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To suppress this check see:
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http://yaml.readthedocs.io/en/latest/api.html#duplicate-keys
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""",
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"""\
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Duplicate keys will become an error in future releases, and are errors
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by default when using the new API.
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""",
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]
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if self.allow_duplicate_keys is None:
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warnings.warn(DuplicateKeyFutureWarning(*args))
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else:
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raise DuplicateKeyError(*args)
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return False
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return True
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def check_set_key(self, node, key_node, setting, key):
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# type: (Any, Any, Any, Any, Any) -> None
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if key in setting:
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if not self.allow_duplicate_keys:
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if PY2:
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if isinstance(key, unicode):
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key = key.encode('utf-8')
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args = [
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'while constructing a set',
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node.start_mark,
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'found duplicate key "{}"'.format(key),
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key_node.start_mark,
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"""
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To suppress this check see:
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http://yaml.readthedocs.io/en/latest/api.html#duplicate-keys
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""",
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"""\
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Duplicate keys will become an error in future releases, and are errors
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by default when using the new API.
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""",
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]
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if self.allow_duplicate_keys is None:
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warnings.warn(DuplicateKeyFutureWarning(*args))
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else:
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raise DuplicateKeyError(*args)
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def construct_pairs(self, node, deep=False):
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# type: (Any, bool) -> Any
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if not isinstance(node, MappingNode):
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raise ConstructorError(
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None, None, 'expected a mapping node, but found %s' % node.id, node.start_mark
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)
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pairs = []
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for key_node, value_node in node.value:
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key = self.construct_object(key_node, deep=deep)
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value = self.construct_object(value_node, deep=deep)
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pairs.append((key, value))
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return pairs
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@classmethod
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def add_constructor(cls, tag, constructor):
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# type: (Any, Any) -> None
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if 'yaml_constructors' not in cls.__dict__:
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cls.yaml_constructors = cls.yaml_constructors.copy()
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cls.yaml_constructors[tag] = constructor
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@classmethod
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def add_multi_constructor(cls, tag_prefix, multi_constructor):
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# type: (Any, Any) -> None
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if 'yaml_multi_constructors' not in cls.__dict__:
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cls.yaml_multi_constructors = cls.yaml_multi_constructors.copy()
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cls.yaml_multi_constructors[tag_prefix] = multi_constructor
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|
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class SafeConstructor(BaseConstructor):
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def construct_scalar(self, node):
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# type: (Any) -> Any
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if isinstance(node, MappingNode):
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for key_node, value_node in node.value:
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if key_node.tag == u'tag:yaml.org,2002:value':
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return self.construct_scalar(value_node)
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return BaseConstructor.construct_scalar(self, node)
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def flatten_mapping(self, node):
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# type: (Any) -> Any
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"""
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This implements the merge key feature http://yaml.org/type/merge.html
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by inserting keys from the merge dict/list of dicts if not yet
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available in this node
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"""
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merge = [] # type: List[Any]
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index = 0
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while index < len(node.value):
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key_node, value_node = node.value[index]
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if key_node.tag == u'tag:yaml.org,2002:merge':
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if merge: # double << key
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if self.allow_duplicate_keys:
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del node.value[index]
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index += 1
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continue
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args = [
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'while constructing a mapping',
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node.start_mark,
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'found duplicate key "{}"'.format(key_node.value),
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key_node.start_mark,
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"""
|
|
To suppress this check see:
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http://yaml.readthedocs.io/en/latest/api.html#duplicate-keys
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""",
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"""\
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Duplicate keys will become an error in future releases, and are errors
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by default when using the new API.
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""",
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]
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if self.allow_duplicate_keys is None:
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warnings.warn(DuplicateKeyFutureWarning(*args))
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else:
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raise DuplicateKeyError(*args)
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del node.value[index]
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if isinstance(value_node, MappingNode):
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self.flatten_mapping(value_node)
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merge.extend(value_node.value)
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elif isinstance(value_node, SequenceNode):
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submerge = []
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for subnode in value_node.value:
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if not isinstance(subnode, MappingNode):
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raise ConstructorError(
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'while constructing a mapping',
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node.start_mark,
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'expected a mapping for merging, but found %s' % subnode.id,
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subnode.start_mark,
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)
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self.flatten_mapping(subnode)
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submerge.append(subnode.value)
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submerge.reverse()
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for value in submerge:
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merge.extend(value)
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else:
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raise ConstructorError(
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'while constructing a mapping',
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node.start_mark,
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'expected a mapping or list of mappings for merging, '
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'but found %s' % value_node.id,
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value_node.start_mark,
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)
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elif key_node.tag == u'tag:yaml.org,2002:value':
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key_node.tag = u'tag:yaml.org,2002:str'
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index += 1
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else:
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|
index += 1
|
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if bool(merge):
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node.merge = merge # separate merge keys to be able to update without duplicate
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node.value = merge + node.value
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|
|
|
def construct_mapping(self, node, deep=False):
|
|
# type: (Any, bool) -> Any
|
|
"""deep is True when creating an object/mapping recursively,
|
|
in that case want the underlying elements available during construction
|
|
"""
|
|
if isinstance(node, MappingNode):
|
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self.flatten_mapping(node)
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return BaseConstructor.construct_mapping(self, node, deep=deep)
|
|
|
|
def construct_yaml_null(self, node):
|
|
# type: (Any) -> Any
|
|
self.construct_scalar(node)
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return None
|
|
|
|
# YAML 1.2 spec doesn't mention yes/no etc any more, 1.1 does
|
|
bool_values = {
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u'yes': True,
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u'no': False,
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u'y': True,
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u'n': False,
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u'true': True,
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u'false': False,
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u'on': True,
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u'off': False,
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}
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|
|
|
def construct_yaml_bool(self, node):
|
|
# type: (Any) -> bool
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|
value = self.construct_scalar(node)
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return self.bool_values[value.lower()]
|
|
|
|
def construct_yaml_int(self, node):
|
|
# type: (Any) -> int
|
|
value_s = to_str(self.construct_scalar(node))
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|
value_s = value_s.replace('_', "")
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|
sign = +1
|
|
if value_s[0] == '-':
|
|
sign = -1
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|
if value_s[0] in '+-':
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|
value_s = value_s[1:]
|
|
if value_s == '0':
|
|
return 0
|
|
elif value_s.startswith('0b'):
|
|
return sign * int(value_s[2:], 2)
|
|
elif value_s.startswith('0x'):
|
|
return sign * int(value_s[2:], 16)
|
|
elif value_s.startswith('0o'):
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|
return sign * int(value_s[2:], 8)
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|
elif self.resolver.processing_version == (1, 1) and value_s[0] == '0':
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return sign * int(value_s, 8)
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|
elif self.resolver.processing_version == (1, 1) and ':' in value_s:
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|
digits = [int(part) for part in value_s.split(':')]
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digits.reverse()
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|
base = 1
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value = 0
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|
for digit in digits:
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value += digit * base
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base *= 60
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return sign * value
|
|
else:
|
|
return sign * int(value_s)
|
|
|
|
inf_value = 1e300
|
|
while inf_value != inf_value * inf_value:
|
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inf_value *= inf_value
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nan_value = -inf_value / inf_value # Trying to make a quiet NaN (like C99).
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|
|
|
def construct_yaml_float(self, node):
|
|
# type: (Any) -> float
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|
value_so = to_str(self.construct_scalar(node))
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|
value_s = value_so.replace('_', "").lower()
|
|
sign = +1
|
|
if value_s[0] == '-':
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sign = -1
|
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if value_s[0] in '+-':
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value_s = value_s[1:]
|
|
if value_s == '.inf':
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|
return sign * self.inf_value
|
|
elif value_s == '.nan':
|
|
return self.nan_value
|
|
elif self.resolver.processing_version != (1, 2) and ':' in value_s:
|
|
digits = [float(part) for part in value_s.split(':')]
|
|
digits.reverse()
|
|
base = 1
|
|
value = 0.0
|
|
for digit in digits:
|
|
value += digit * base
|
|
base *= 60
|
|
return sign * value
|
|
else:
|
|
if self.resolver.processing_version != (1, 2) and 'e' in value_s:
|
|
# value_s is lower case independent of input
|
|
mantissa, exponent = value_s.split('e')
|
|
if '.' not in mantissa:
|
|
warnings.warn(MantissaNoDotYAML1_1Warning(node, value_so))
|
|
return sign * float(value_s)
|
|
|
|
if PY3:
|
|
|
|
def construct_yaml_binary(self, node):
|
|
# type: (Any) -> Any
|
|
try:
|
|
value = self.construct_scalar(node).encode('ascii')
|
|
except UnicodeEncodeError as exc:
|
|
raise ConstructorError(
|
|
None,
|
|
None,
|
|
'failed to convert base64 data into ascii: %s' % exc,
|
|
node.start_mark,
|
|
)
|
|
try:
|
|
if hasattr(base64, 'decodebytes'):
|
|
return base64.decodebytes(value)
|
|
else:
|
|
return base64.decodestring(value)
|
|
except binascii.Error as exc:
|
|
raise ConstructorError(
|
|
None, None, 'failed to decode base64 data: %s' % exc, node.start_mark
|
|
)
|
|
|
|
else:
|
|
|
|
def construct_yaml_binary(self, node):
|
|
# type: (Any) -> Any
|
|
value = self.construct_scalar(node)
|
|
try:
|
|
return to_str(value).decode('base64')
|
|
except (binascii.Error, UnicodeEncodeError) as exc:
|
|
raise ConstructorError(
|
|
None, None, 'failed to decode base64 data: %s' % exc, node.start_mark
|
|
)
|
|
|
|
timestamp_regexp = RegExp(
|
|
u"""^(?P<year>[0-9][0-9][0-9][0-9])
|
|
-(?P<month>[0-9][0-9]?)
|
|
-(?P<day>[0-9][0-9]?)
|
|
(?:((?P<t>[Tt])|[ \\t]+) # explictly not retaining extra spaces
|
|
(?P<hour>[0-9][0-9]?)
|
|
:(?P<minute>[0-9][0-9])
|
|
:(?P<second>[0-9][0-9])
|
|
(?:\\.(?P<fraction>[0-9]*))?
|
|
(?:[ \\t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)
|
|
(?::(?P<tz_minute>[0-9][0-9]))?))?)?$""",
|
|
re.X,
|
|
)
|
|
|
|
def construct_yaml_timestamp(self, node, values=None):
|
|
# type: (Any, Any) -> Any
|
|
if values is None:
|
|
try:
|
|
match = self.timestamp_regexp.match(node.value)
|
|
except TypeError:
|
|
match = None
|
|
if match is None:
|
|
raise ConstructorError(
|
|
None,
|
|
None,
|
|
'failed to construct timestamp from "{}"'.format(node.value),
|
|
node.start_mark,
|
|
)
|
|
values = match.groupdict()
|
|
year = int(values['year'])
|
|
month = int(values['month'])
|
|
day = int(values['day'])
|
|
if not values['hour']:
|
|
return datetime.date(year, month, day)
|
|
hour = int(values['hour'])
|
|
minute = int(values['minute'])
|
|
second = int(values['second'])
|
|
fraction = 0
|
|
if values['fraction']:
|
|
fraction_s = values['fraction'][:6]
|
|
while len(fraction_s) < 6:
|
|
fraction_s += '0'
|
|
fraction = int(fraction_s)
|
|
if len(values['fraction']) > 6 and int(values['fraction'][6]) > 4:
|
|
fraction += 1
|
|
delta = None
|
|
if values['tz_sign']:
|
|
tz_hour = int(values['tz_hour'])
|
|
minutes = values['tz_minute']
|
|
tz_minute = int(minutes) if minutes else 0
|
|
delta = datetime.timedelta(hours=tz_hour, minutes=tz_minute)
|
|
if values['tz_sign'] == '-':
|
|
delta = -delta
|
|
# should do something else instead (or hook this up to the preceding if statement
|
|
# in reverse
|
|
# if delta is None:
|
|
# return datetime.datetime(year, month, day, hour, minute, second, fraction)
|
|
# return datetime.datetime(year, month, day, hour, minute, second, fraction,
|
|
# datetime.timezone.utc)
|
|
# the above is not good enough though, should provide tzinfo. In Python3 that is easily
|
|
# doable drop that kind of support for Python2 as it has not native tzinfo
|
|
data = datetime.datetime(year, month, day, hour, minute, second, fraction)
|
|
if delta:
|
|
data -= delta
|
|
return data
|
|
|
|
def construct_yaml_omap(self, node):
|
|
# type: (Any) -> Any
|
|
# Note: we do now check for duplicate keys
|
|
omap = ordereddict()
|
|
yield omap
|
|
if not isinstance(node, SequenceNode):
|
|
raise ConstructorError(
|
|
'while constructing an ordered map',
|
|
node.start_mark,
|
|
'expected a sequence, but found %s' % node.id,
|
|
node.start_mark,
|
|
)
|
|
for subnode in node.value:
|
|
if not isinstance(subnode, MappingNode):
|
|
raise ConstructorError(
|
|
'while constructing an ordered map',
|
|
node.start_mark,
|
|
'expected a mapping of length 1, but found %s' % subnode.id,
|
|
subnode.start_mark,
|
|
)
|
|
if len(subnode.value) != 1:
|
|
raise ConstructorError(
|
|
'while constructing an ordered map',
|
|
node.start_mark,
|
|
'expected a single mapping item, but found %d items' % len(subnode.value),
|
|
subnode.start_mark,
|
|
)
|
|
key_node, value_node = subnode.value[0]
|
|
key = self.construct_object(key_node)
|
|
assert key not in omap
|
|
value = self.construct_object(value_node)
|
|
omap[key] = value
|
|
|
|
def construct_yaml_pairs(self, node):
|
|
# type: (Any) -> Any
|
|
# Note: the same code as `construct_yaml_omap`.
|
|
pairs = [] # type: List[Any]
|
|
yield pairs
|
|
if not isinstance(node, SequenceNode):
|
|
raise ConstructorError(
|
|
'while constructing pairs',
|
|
node.start_mark,
|
|
'expected a sequence, but found %s' % node.id,
|
|
node.start_mark,
|
|
)
|
|
for subnode in node.value:
|
|
if not isinstance(subnode, MappingNode):
|
|
raise ConstructorError(
|
|
'while constructing pairs',
|
|
node.start_mark,
|
|
'expected a mapping of length 1, but found %s' % subnode.id,
|
|
subnode.start_mark,
|
|
)
|
|
if len(subnode.value) != 1:
|
|
raise ConstructorError(
|
|
'while constructing pairs',
|
|
node.start_mark,
|
|
'expected a single mapping item, but found %d items' % len(subnode.value),
|
|
subnode.start_mark,
|
|
)
|
|
key_node, value_node = subnode.value[0]
|
|
key = self.construct_object(key_node)
|
|
value = self.construct_object(value_node)
|
|
pairs.append((key, value))
|
|
|
|
def construct_yaml_set(self, node):
|
|
# type: (Any) -> Any
|
|
data = set() # type: Set[Any]
|
|
yield data
|
|
value = self.construct_mapping(node)
|
|
data.update(value)
|
|
|
|
def construct_yaml_str(self, node):
|
|
# type: (Any) -> Any
|
|
value = self.construct_scalar(node)
|
|
if PY3:
|
|
return value
|
|
try:
|
|
return value.encode('ascii')
|
|
except UnicodeEncodeError:
|
|
return value
|
|
|
|
def construct_yaml_seq(self, node):
|
|
# type: (Any) -> Any
|
|
data = self.yaml_base_list_type() # type: List[Any]
|
|
yield data
|
|
data.extend(self.construct_sequence(node))
|
|
|
|
def construct_yaml_map(self, node):
|
|
# type: (Any) -> Any
|
|
data = self.yaml_base_dict_type() # type: Dict[Any, Any]
|
|
yield data
|
|
value = self.construct_mapping(node)
|
|
data.update(value)
|
|
|
|
def construct_yaml_object(self, node, cls):
|
|
# type: (Any, Any) -> Any
|
|
data = cls.__new__(cls)
|
|
yield data
|
|
if hasattr(data, '__setstate__'):
|
|
state = self.construct_mapping(node, deep=True)
|
|
data.__setstate__(state)
|
|
else:
|
|
state = self.construct_mapping(node)
|
|
data.__dict__.update(state)
|
|
|
|
def construct_undefined(self, node):
|
|
# type: (Any) -> None
|
|
raise ConstructorError(
|
|
None,
|
|
None,
|
|
'could not determine a constructor for the tag %r' % utf8(node.tag),
|
|
node.start_mark,
|
|
)
|
|
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:null', SafeConstructor.construct_yaml_null)
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:bool', SafeConstructor.construct_yaml_bool)
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:int', SafeConstructor.construct_yaml_int)
|
|
|
|
SafeConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:float', SafeConstructor.construct_yaml_float
|
|
)
|
|
|
|
SafeConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:binary', SafeConstructor.construct_yaml_binary
|
|
)
|
|
|
|
SafeConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:timestamp', SafeConstructor.construct_yaml_timestamp
|
|
)
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:omap', SafeConstructor.construct_yaml_omap)
|
|
|
|
SafeConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:pairs', SafeConstructor.construct_yaml_pairs
|
|
)
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:set', SafeConstructor.construct_yaml_set)
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:str', SafeConstructor.construct_yaml_str)
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:seq', SafeConstructor.construct_yaml_seq)
|
|
|
|
SafeConstructor.add_constructor(u'tag:yaml.org,2002:map', SafeConstructor.construct_yaml_map)
|
|
|
|
SafeConstructor.add_constructor(None, SafeConstructor.construct_undefined)
|
|
|
|
if PY2:
|
|
|
|
class classobj:
|
|
pass
|
|
|
|
|
|
class Constructor(SafeConstructor):
|
|
def construct_python_str(self, node):
|
|
# type: (Any) -> Any
|
|
return utf8(self.construct_scalar(node))
|
|
|
|
def construct_python_unicode(self, node):
|
|
# type: (Any) -> Any
|
|
return self.construct_scalar(node)
|
|
|
|
if PY3:
|
|
|
|
def construct_python_bytes(self, node):
|
|
# type: (Any) -> Any
|
|
try:
|
|
value = self.construct_scalar(node).encode('ascii')
|
|
except UnicodeEncodeError as exc:
|
|
raise ConstructorError(
|
|
None,
|
|
None,
|
|
'failed to convert base64 data into ascii: %s' % exc,
|
|
node.start_mark,
|
|
)
|
|
try:
|
|
if hasattr(base64, 'decodebytes'):
|
|
return base64.decodebytes(value)
|
|
else:
|
|
return base64.decodestring(value)
|
|
except binascii.Error as exc:
|
|
raise ConstructorError(
|
|
None, None, 'failed to decode base64 data: %s' % exc, node.start_mark
|
|
)
|
|
|
|
def construct_python_long(self, node):
|
|
# type: (Any) -> int
|
|
val = self.construct_yaml_int(node)
|
|
if PY3:
|
|
return val
|
|
return int(val)
|
|
|
|
def construct_python_complex(self, node):
|
|
# type: (Any) -> Any
|
|
return complex(self.construct_scalar(node))
|
|
|
|
def construct_python_tuple(self, node):
|
|
# type: (Any) -> Any
|
|
return tuple(self.construct_sequence(node))
|
|
|
|
def find_python_module(self, name, mark):
|
|
# type: (Any, Any) -> Any
|
|
if not name:
|
|
raise ConstructorError(
|
|
'while constructing a Python module',
|
|
mark,
|
|
'expected non-empty name appended to the tag',
|
|
mark,
|
|
)
|
|
try:
|
|
__import__(name)
|
|
except ImportError as exc:
|
|
raise ConstructorError(
|
|
'while constructing a Python module',
|
|
mark,
|
|
'cannot find module %r (%s)' % (utf8(name), exc),
|
|
mark,
|
|
)
|
|
return sys.modules[name]
|
|
|
|
def find_python_name(self, name, mark):
|
|
# type: (Any, Any) -> Any
|
|
if not name:
|
|
raise ConstructorError(
|
|
'while constructing a Python object',
|
|
mark,
|
|
'expected non-empty name appended to the tag',
|
|
mark,
|
|
)
|
|
if u'.' in name:
|
|
lname = name.split('.')
|
|
lmodule_name = lname
|
|
lobject_name = [] # type: List[Any]
|
|
while len(lmodule_name) > 1:
|
|
lobject_name.insert(0, lmodule_name.pop())
|
|
module_name = '.'.join(lmodule_name)
|
|
try:
|
|
__import__(module_name)
|
|
# object_name = '.'.join(object_name)
|
|
break
|
|
except ImportError:
|
|
continue
|
|
else:
|
|
module_name = builtins_module
|
|
lobject_name = [name]
|
|
try:
|
|
__import__(module_name)
|
|
except ImportError as exc:
|
|
raise ConstructorError(
|
|
'while constructing a Python object',
|
|
mark,
|
|
'cannot find module %r (%s)' % (utf8(module_name), exc),
|
|
mark,
|
|
)
|
|
module = sys.modules[module_name]
|
|
object_name = '.'.join(lobject_name)
|
|
obj = module
|
|
while lobject_name:
|
|
if not hasattr(obj, lobject_name[0]):
|
|
|
|
raise ConstructorError(
|
|
'while constructing a Python object',
|
|
mark,
|
|
'cannot find %r in the module %r' % (utf8(object_name), module.__name__),
|
|
mark,
|
|
)
|
|
obj = getattr(obj, lobject_name.pop(0))
|
|
return obj
|
|
|
|
def construct_python_name(self, suffix, node):
|
|
# type: (Any, Any) -> Any
|
|
value = self.construct_scalar(node)
|
|
if value:
|
|
raise ConstructorError(
|
|
'while constructing a Python name',
|
|
node.start_mark,
|
|
'expected the empty value, but found %r' % utf8(value),
|
|
node.start_mark,
|
|
)
|
|
return self.find_python_name(suffix, node.start_mark)
|
|
|
|
def construct_python_module(self, suffix, node):
|
|
# type: (Any, Any) -> Any
|
|
value = self.construct_scalar(node)
|
|
if value:
|
|
raise ConstructorError(
|
|
'while constructing a Python module',
|
|
node.start_mark,
|
|
'expected the empty value, but found %r' % utf8(value),
|
|
node.start_mark,
|
|
)
|
|
return self.find_python_module(suffix, node.start_mark)
|
|
|
|
def make_python_instance(self, suffix, node, args=None, kwds=None, newobj=False):
|
|
# type: (Any, Any, Any, Any, bool) -> Any
|
|
if not args:
|
|
args = []
|
|
if not kwds:
|
|
kwds = {}
|
|
cls = self.find_python_name(suffix, node.start_mark)
|
|
if PY3:
|
|
if newobj and isinstance(cls, type):
|
|
return cls.__new__(cls, *args, **kwds)
|
|
else:
|
|
return cls(*args, **kwds)
|
|
else:
|
|
if newobj and isinstance(cls, type(classobj)) and not args and not kwds:
|
|
instance = classobj()
|
|
instance.__class__ = cls
|
|
return instance
|
|
elif newobj and isinstance(cls, type):
|
|
return cls.__new__(cls, *args, **kwds)
|
|
else:
|
|
return cls(*args, **kwds)
|
|
|
|
def set_python_instance_state(self, instance, state):
|
|
# type: (Any, Any) -> None
|
|
if hasattr(instance, '__setstate__'):
|
|
instance.__setstate__(state)
|
|
else:
|
|
slotstate = {} # type: Dict[Any, Any]
|
|
if isinstance(state, tuple) and len(state) == 2:
|
|
state, slotstate = state
|
|
if hasattr(instance, '__dict__'):
|
|
instance.__dict__.update(state)
|
|
elif state:
|
|
slotstate.update(state)
|
|
for key, value in slotstate.items():
|
|
setattr(instance, key, value)
|
|
|
|
def construct_python_object(self, suffix, node):
|
|
# type: (Any, Any) -> Any
|
|
# Format:
|
|
# !!python/object:module.name { ... state ... }
|
|
instance = self.make_python_instance(suffix, node, newobj=True)
|
|
self.recursive_objects[node] = instance
|
|
yield instance
|
|
deep = hasattr(instance, '__setstate__')
|
|
state = self.construct_mapping(node, deep=deep)
|
|
self.set_python_instance_state(instance, state)
|
|
|
|
def construct_python_object_apply(self, suffix, node, newobj=False):
|
|
# type: (Any, Any, bool) -> Any
|
|
# Format:
|
|
# !!python/object/apply # (or !!python/object/new)
|
|
# args: [ ... arguments ... ]
|
|
# kwds: { ... keywords ... }
|
|
# state: ... state ...
|
|
# listitems: [ ... listitems ... ]
|
|
# dictitems: { ... dictitems ... }
|
|
# or short format:
|
|
# !!python/object/apply [ ... arguments ... ]
|
|
# The difference between !!python/object/apply and !!python/object/new
|
|
# is how an object is created, check make_python_instance for details.
|
|
if isinstance(node, SequenceNode):
|
|
args = self.construct_sequence(node, deep=True)
|
|
kwds = {} # type: Dict[Any, Any]
|
|
state = {} # type: Dict[Any, Any]
|
|
listitems = [] # type: List[Any]
|
|
dictitems = {} # type: Dict[Any, Any]
|
|
else:
|
|
value = self.construct_mapping(node, deep=True)
|
|
args = value.get('args', [])
|
|
kwds = value.get('kwds', {})
|
|
state = value.get('state', {})
|
|
listitems = value.get('listitems', [])
|
|
dictitems = value.get('dictitems', {})
|
|
instance = self.make_python_instance(suffix, node, args, kwds, newobj)
|
|
if bool(state):
|
|
self.set_python_instance_state(instance, state)
|
|
if bool(listitems):
|
|
instance.extend(listitems)
|
|
if bool(dictitems):
|
|
for key in dictitems:
|
|
instance[key] = dictitems[key]
|
|
return instance
|
|
|
|
def construct_python_object_new(self, suffix, node):
|
|
# type: (Any, Any) -> Any
|
|
return self.construct_python_object_apply(suffix, node, newobj=True)
|
|
|
|
|
|
Constructor.add_constructor(u'tag:yaml.org,2002:python/none', Constructor.construct_yaml_null)
|
|
|
|
Constructor.add_constructor(u'tag:yaml.org,2002:python/bool', Constructor.construct_yaml_bool)
|
|
|
|
Constructor.add_constructor(u'tag:yaml.org,2002:python/str', Constructor.construct_python_str)
|
|
|
|
Constructor.add_constructor(
|
|
u'tag:yaml.org,2002:python/unicode', Constructor.construct_python_unicode
|
|
)
|
|
|
|
if PY3:
|
|
Constructor.add_constructor(
|
|
u'tag:yaml.org,2002:python/bytes', Constructor.construct_python_bytes
|
|
)
|
|
|
|
Constructor.add_constructor(u'tag:yaml.org,2002:python/int', Constructor.construct_yaml_int)
|
|
|
|
Constructor.add_constructor(
|
|
u'tag:yaml.org,2002:python/long', Constructor.construct_python_long
|
|
)
|
|
|
|
Constructor.add_constructor(
|
|
u'tag:yaml.org,2002:python/float', Constructor.construct_yaml_float
|
|
)
|
|
|
|
Constructor.add_constructor(
|
|
u'tag:yaml.org,2002:python/complex', Constructor.construct_python_complex
|
|
)
|
|
|
|
Constructor.add_constructor(u'tag:yaml.org,2002:python/list', Constructor.construct_yaml_seq)
|
|
|
|
Constructor.add_constructor(
|
|
u'tag:yaml.org,2002:python/tuple', Constructor.construct_python_tuple
|
|
)
|
|
|
|
Constructor.add_constructor(u'tag:yaml.org,2002:python/dict', Constructor.construct_yaml_map)
|
|
|
|
Constructor.add_multi_constructor(
|
|
u'tag:yaml.org,2002:python/name:', Constructor.construct_python_name
|
|
)
|
|
|
|
Constructor.add_multi_constructor(
|
|
u'tag:yaml.org,2002:python/module:', Constructor.construct_python_module
|
|
)
|
|
|
|
Constructor.add_multi_constructor(
|
|
u'tag:yaml.org,2002:python/object:', Constructor.construct_python_object
|
|
)
|
|
|
|
Constructor.add_multi_constructor(
|
|
u'tag:yaml.org,2002:python/object/apply:', Constructor.construct_python_object_apply
|
|
)
|
|
|
|
Constructor.add_multi_constructor(
|
|
u'tag:yaml.org,2002:python/object/new:', Constructor.construct_python_object_new
|
|
)
|
|
|
|
|
|
class RoundTripConstructor(SafeConstructor):
|
|
"""need to store the comments on the node itself,
|
|
as well as on the items
|
|
"""
|
|
|
|
def construct_scalar(self, node):
|
|
# type: (Any) -> Any
|
|
if not isinstance(node, ScalarNode):
|
|
raise ConstructorError(
|
|
None, None, 'expected a scalar node, but found %s' % node.id, node.start_mark
|
|
)
|
|
|
|
if node.style == '|' and isinstance(node.value, text_type):
|
|
lss = LiteralScalarString(node.value, anchor=node.anchor)
|
|
if node.comment and node.comment[1]:
|
|
lss.comment = node.comment[1][0] # type: ignore
|
|
return lss
|
|
if node.style == '>' and isinstance(node.value, text_type):
|
|
fold_positions = [] # type: List[int]
|
|
idx = -1
|
|
while True:
|
|
idx = node.value.find('\a', idx + 1)
|
|
if idx < 0:
|
|
break
|
|
fold_positions.append(idx - len(fold_positions))
|
|
fss = FoldedScalarString(node.value.replace('\a', ''), anchor=node.anchor)
|
|
if node.comment and node.comment[1]:
|
|
fss.comment = node.comment[1][0] # type: ignore
|
|
if fold_positions:
|
|
fss.fold_pos = fold_positions # type: ignore
|
|
return fss
|
|
elif bool(self._preserve_quotes) and isinstance(node.value, text_type):
|
|
if node.style == "'":
|
|
return SingleQuotedScalarString(node.value, anchor=node.anchor)
|
|
if node.style == '"':
|
|
return DoubleQuotedScalarString(node.value, anchor=node.anchor)
|
|
if node.anchor:
|
|
return PlainScalarString(node.value, anchor=node.anchor)
|
|
return node.value
|
|
|
|
def construct_yaml_int(self, node):
|
|
# type: (Any) -> Any
|
|
width = None # type: Any
|
|
value_su = to_str(self.construct_scalar(node))
|
|
try:
|
|
sx = value_su.rstrip('_')
|
|
underscore = [len(sx) - sx.rindex('_') - 1, False, False] # type: Any
|
|
except ValueError:
|
|
underscore = None
|
|
except IndexError:
|
|
underscore = None
|
|
value_s = value_su.replace('_', "")
|
|
sign = +1
|
|
if value_s[0] == '-':
|
|
sign = -1
|
|
if value_s[0] in '+-':
|
|
value_s = value_s[1:]
|
|
if value_s == '0':
|
|
return 0
|
|
elif value_s.startswith('0b'):
|
|
if self.resolver.processing_version > (1, 1) and value_s[2] == '0':
|
|
width = len(value_s[2:])
|
|
if underscore is not None:
|
|
underscore[1] = value_su[2] == '_'
|
|
underscore[2] = len(value_su[2:]) > 1 and value_su[-1] == '_'
|
|
return BinaryInt(
|
|
sign * int(value_s[2:], 2),
|
|
width=width,
|
|
underscore=underscore,
|
|
anchor=node.anchor,
|
|
)
|
|
elif value_s.startswith('0x'):
|
|
# default to lower-case if no a-fA-F in string
|
|
if self.resolver.processing_version > (1, 1) and value_s[2] == '0':
|
|
width = len(value_s[2:])
|
|
hex_fun = HexInt # type: Any
|
|
for ch in value_s[2:]:
|
|
if ch in 'ABCDEF': # first non-digit is capital
|
|
hex_fun = HexCapsInt
|
|
break
|
|
if ch in 'abcdef':
|
|
break
|
|
if underscore is not None:
|
|
underscore[1] = value_su[2] == '_'
|
|
underscore[2] = len(value_su[2:]) > 1 and value_su[-1] == '_'
|
|
return hex_fun(
|
|
sign * int(value_s[2:], 16),
|
|
width=width,
|
|
underscore=underscore,
|
|
anchor=node.anchor,
|
|
)
|
|
elif value_s.startswith('0o'):
|
|
if self.resolver.processing_version > (1, 1) and value_s[2] == '0':
|
|
width = len(value_s[2:])
|
|
if underscore is not None:
|
|
underscore[1] = value_su[2] == '_'
|
|
underscore[2] = len(value_su[2:]) > 1 and value_su[-1] == '_'
|
|
return OctalInt(
|
|
sign * int(value_s[2:], 8),
|
|
width=width,
|
|
underscore=underscore,
|
|
anchor=node.anchor,
|
|
)
|
|
elif self.resolver.processing_version != (1, 2) and value_s[0] == '0':
|
|
return sign * int(value_s, 8)
|
|
elif self.resolver.processing_version != (1, 2) and ':' in value_s:
|
|
digits = [int(part) for part in value_s.split(':')]
|
|
digits.reverse()
|
|
base = 1
|
|
value = 0
|
|
for digit in digits:
|
|
value += digit * base
|
|
base *= 60
|
|
return sign * value
|
|
elif self.resolver.processing_version > (1, 1) and value_s[0] == '0':
|
|
# not an octal, an integer with leading zero(s)
|
|
if underscore is not None:
|
|
# cannot have a leading underscore
|
|
underscore[2] = len(value_su) > 1 and value_su[-1] == '_'
|
|
return ScalarInt(sign * int(value_s), width=len(value_s), underscore=underscore)
|
|
elif underscore:
|
|
# cannot have a leading underscore
|
|
underscore[2] = len(value_su) > 1 and value_su[-1] == '_'
|
|
return ScalarInt(
|
|
sign * int(value_s), width=None, underscore=underscore, anchor=node.anchor
|
|
)
|
|
elif node.anchor:
|
|
return ScalarInt(sign * int(value_s), width=None, anchor=node.anchor)
|
|
else:
|
|
return sign * int(value_s)
|
|
|
|
def construct_yaml_float(self, node):
|
|
# type: (Any) -> Any
|
|
def leading_zeros(v):
|
|
# type: (Any) -> int
|
|
lead0 = 0
|
|
idx = 0
|
|
while idx < len(v) and v[idx] in '0.':
|
|
if v[idx] == '0':
|
|
lead0 += 1
|
|
idx += 1
|
|
return lead0
|
|
|
|
# underscore = None
|
|
m_sign = False # type: Any
|
|
value_so = to_str(self.construct_scalar(node))
|
|
value_s = value_so.replace('_', "").lower()
|
|
sign = +1
|
|
if value_s[0] == '-':
|
|
sign = -1
|
|
if value_s[0] in '+-':
|
|
m_sign = value_s[0]
|
|
value_s = value_s[1:]
|
|
if value_s == '.inf':
|
|
return sign * self.inf_value
|
|
if value_s == '.nan':
|
|
return self.nan_value
|
|
if self.resolver.processing_version != (1, 2) and ':' in value_s:
|
|
digits = [float(part) for part in value_s.split(':')]
|
|
digits.reverse()
|
|
base = 1
|
|
value = 0.0
|
|
for digit in digits:
|
|
value += digit * base
|
|
base *= 60
|
|
return sign * value
|
|
if 'e' in value_s:
|
|
try:
|
|
mantissa, exponent = value_so.split('e')
|
|
exp = 'e'
|
|
except ValueError:
|
|
mantissa, exponent = value_so.split('E')
|
|
exp = 'E'
|
|
if self.resolver.processing_version != (1, 2):
|
|
# value_s is lower case independent of input
|
|
if '.' not in mantissa:
|
|
warnings.warn(MantissaNoDotYAML1_1Warning(node, value_so))
|
|
lead0 = leading_zeros(mantissa)
|
|
width = len(mantissa)
|
|
prec = mantissa.find('.')
|
|
if m_sign:
|
|
width -= 1
|
|
e_width = len(exponent)
|
|
e_sign = exponent[0] in '+-'
|
|
# nprint('sf', width, prec, m_sign, exp, e_width, e_sign)
|
|
return ScalarFloat(
|
|
sign * float(value_s),
|
|
width=width,
|
|
prec=prec,
|
|
m_sign=m_sign,
|
|
m_lead0=lead0,
|
|
exp=exp,
|
|
e_width=e_width,
|
|
e_sign=e_sign,
|
|
anchor=node.anchor,
|
|
)
|
|
width = len(value_so)
|
|
prec = value_so.index('.') # you can use index, this would not be float without dot
|
|
lead0 = leading_zeros(value_so)
|
|
return ScalarFloat(
|
|
sign * float(value_s),
|
|
width=width,
|
|
prec=prec,
|
|
m_sign=m_sign,
|
|
m_lead0=lead0,
|
|
anchor=node.anchor,
|
|
)
|
|
|
|
def construct_yaml_str(self, node):
|
|
# type: (Any) -> Any
|
|
value = self.construct_scalar(node)
|
|
if isinstance(value, ScalarString):
|
|
return value
|
|
if PY3:
|
|
return value
|
|
try:
|
|
return value.encode('ascii')
|
|
except AttributeError:
|
|
# in case you replace the node dynamically e.g. with a dict
|
|
return value
|
|
except UnicodeEncodeError:
|
|
return value
|
|
|
|
def construct_rt_sequence(self, node, seqtyp, deep=False):
|
|
# type: (Any, Any, bool) -> Any
|
|
if not isinstance(node, SequenceNode):
|
|
raise ConstructorError(
|
|
None, None, 'expected a sequence node, but found %s' % node.id, node.start_mark
|
|
)
|
|
ret_val = []
|
|
if node.comment:
|
|
seqtyp._yaml_add_comment(node.comment[:2])
|
|
if len(node.comment) > 2:
|
|
seqtyp.yaml_end_comment_extend(node.comment[2], clear=True)
|
|
if node.anchor:
|
|
from dynaconf.vendor.ruamel.yaml.serializer import templated_id
|
|
|
|
if not templated_id(node.anchor):
|
|
seqtyp.yaml_set_anchor(node.anchor)
|
|
for idx, child in enumerate(node.value):
|
|
if child.comment:
|
|
seqtyp._yaml_add_comment(child.comment, key=idx)
|
|
child.comment = None # if moved to sequence remove from child
|
|
ret_val.append(self.construct_object(child, deep=deep))
|
|
seqtyp._yaml_set_idx_line_col(
|
|
idx, [child.start_mark.line, child.start_mark.column]
|
|
)
|
|
return ret_val
|
|
|
|
def flatten_mapping(self, node):
|
|
# type: (Any) -> Any
|
|
"""
|
|
This implements the merge key feature http://yaml.org/type/merge.html
|
|
by inserting keys from the merge dict/list of dicts if not yet
|
|
available in this node
|
|
"""
|
|
|
|
def constructed(value_node):
|
|
# type: (Any) -> Any
|
|
# If the contents of a merge are defined within the
|
|
# merge marker, then they won't have been constructed
|
|
# yet. But if they were already constructed, we need to use
|
|
# the existing object.
|
|
if value_node in self.constructed_objects:
|
|
value = self.constructed_objects[value_node]
|
|
else:
|
|
value = self.construct_object(value_node, deep=False)
|
|
return value
|
|
|
|
# merge = []
|
|
merge_map_list = [] # type: List[Any]
|
|
index = 0
|
|
while index < len(node.value):
|
|
key_node, value_node = node.value[index]
|
|
if key_node.tag == u'tag:yaml.org,2002:merge':
|
|
if merge_map_list: # double << key
|
|
if self.allow_duplicate_keys:
|
|
del node.value[index]
|
|
index += 1
|
|
continue
|
|
args = [
|
|
'while constructing a mapping',
|
|
node.start_mark,
|
|
'found duplicate key "{}"'.format(key_node.value),
|
|
key_node.start_mark,
|
|
"""
|
|
To suppress this check see:
|
|
http://yaml.readthedocs.io/en/latest/api.html#duplicate-keys
|
|
""",
|
|
"""\
|
|
Duplicate keys will become an error in future releases, and are errors
|
|
by default when using the new API.
|
|
""",
|
|
]
|
|
if self.allow_duplicate_keys is None:
|
|
warnings.warn(DuplicateKeyFutureWarning(*args))
|
|
else:
|
|
raise DuplicateKeyError(*args)
|
|
del node.value[index]
|
|
if isinstance(value_node, MappingNode):
|
|
merge_map_list.append((index, constructed(value_node)))
|
|
# self.flatten_mapping(value_node)
|
|
# merge.extend(value_node.value)
|
|
elif isinstance(value_node, SequenceNode):
|
|
# submerge = []
|
|
for subnode in value_node.value:
|
|
if not isinstance(subnode, MappingNode):
|
|
raise ConstructorError(
|
|
'while constructing a mapping',
|
|
node.start_mark,
|
|
'expected a mapping for merging, but found %s' % subnode.id,
|
|
subnode.start_mark,
|
|
)
|
|
merge_map_list.append((index, constructed(subnode)))
|
|
# self.flatten_mapping(subnode)
|
|
# submerge.append(subnode.value)
|
|
# submerge.reverse()
|
|
# for value in submerge:
|
|
# merge.extend(value)
|
|
else:
|
|
raise ConstructorError(
|
|
'while constructing a mapping',
|
|
node.start_mark,
|
|
'expected a mapping or list of mappings for merging, '
|
|
'but found %s' % value_node.id,
|
|
value_node.start_mark,
|
|
)
|
|
elif key_node.tag == u'tag:yaml.org,2002:value':
|
|
key_node.tag = u'tag:yaml.org,2002:str'
|
|
index += 1
|
|
else:
|
|
index += 1
|
|
return merge_map_list
|
|
# if merge:
|
|
# node.value = merge + node.value
|
|
|
|
def _sentinel(self):
|
|
# type: () -> None
|
|
pass
|
|
|
|
def construct_mapping(self, node, maptyp, deep=False): # type: ignore
|
|
# type: (Any, Any, bool) -> Any
|
|
if not isinstance(node, MappingNode):
|
|
raise ConstructorError(
|
|
None, None, 'expected a mapping node, but found %s' % node.id, node.start_mark
|
|
)
|
|
merge_map = self.flatten_mapping(node)
|
|
# mapping = {}
|
|
if node.comment:
|
|
maptyp._yaml_add_comment(node.comment[:2])
|
|
if len(node.comment) > 2:
|
|
maptyp.yaml_end_comment_extend(node.comment[2], clear=True)
|
|
if node.anchor:
|
|
from dynaconf.vendor.ruamel.yaml.serializer import templated_id
|
|
|
|
if not templated_id(node.anchor):
|
|
maptyp.yaml_set_anchor(node.anchor)
|
|
last_key, last_value = None, self._sentinel
|
|
for key_node, value_node in node.value:
|
|
# keys can be list -> deep
|
|
key = self.construct_object(key_node, deep=True)
|
|
# lists are not hashable, but tuples are
|
|
if not isinstance(key, Hashable):
|
|
if isinstance(key, MutableSequence):
|
|
key_s = CommentedKeySeq(key)
|
|
if key_node.flow_style is True:
|
|
key_s.fa.set_flow_style()
|
|
elif key_node.flow_style is False:
|
|
key_s.fa.set_block_style()
|
|
key = key_s
|
|
elif isinstance(key, MutableMapping):
|
|
key_m = CommentedKeyMap(key)
|
|
if key_node.flow_style is True:
|
|
key_m.fa.set_flow_style()
|
|
elif key_node.flow_style is False:
|
|
key_m.fa.set_block_style()
|
|
key = key_m
|
|
if PY2:
|
|
try:
|
|
hash(key)
|
|
except TypeError as exc:
|
|
raise ConstructorError(
|
|
'while constructing a mapping',
|
|
node.start_mark,
|
|
'found unacceptable key (%s)' % exc,
|
|
key_node.start_mark,
|
|
)
|
|
else:
|
|
if not isinstance(key, Hashable):
|
|
raise ConstructorError(
|
|
'while constructing a mapping',
|
|
node.start_mark,
|
|
'found unhashable key',
|
|
key_node.start_mark,
|
|
)
|
|
value = self.construct_object(value_node, deep=deep)
|
|
if self.check_mapping_key(node, key_node, maptyp, key, value):
|
|
if key_node.comment and len(key_node.comment) > 4 and key_node.comment[4]:
|
|
if last_value is None:
|
|
key_node.comment[0] = key_node.comment.pop(4)
|
|
maptyp._yaml_add_comment(key_node.comment, value=last_key)
|
|
else:
|
|
key_node.comment[2] = key_node.comment.pop(4)
|
|
maptyp._yaml_add_comment(key_node.comment, key=key)
|
|
key_node.comment = None
|
|
if key_node.comment:
|
|
maptyp._yaml_add_comment(key_node.comment, key=key)
|
|
if value_node.comment:
|
|
maptyp._yaml_add_comment(value_node.comment, value=key)
|
|
maptyp._yaml_set_kv_line_col(
|
|
key,
|
|
[
|
|
key_node.start_mark.line,
|
|
key_node.start_mark.column,
|
|
value_node.start_mark.line,
|
|
value_node.start_mark.column,
|
|
],
|
|
)
|
|
maptyp[key] = value
|
|
last_key, last_value = key, value # could use indexing
|
|
# do this last, or <<: before a key will prevent insertion in instances
|
|
# of collections.OrderedDict (as they have no __contains__
|
|
if merge_map:
|
|
maptyp.add_yaml_merge(merge_map)
|
|
|
|
def construct_setting(self, node, typ, deep=False):
|
|
# type: (Any, Any, bool) -> Any
|
|
if not isinstance(node, MappingNode):
|
|
raise ConstructorError(
|
|
None, None, 'expected a mapping node, but found %s' % node.id, node.start_mark
|
|
)
|
|
if node.comment:
|
|
typ._yaml_add_comment(node.comment[:2])
|
|
if len(node.comment) > 2:
|
|
typ.yaml_end_comment_extend(node.comment[2], clear=True)
|
|
if node.anchor:
|
|
from dynaconf.vendor.ruamel.yaml.serializer import templated_id
|
|
|
|
if not templated_id(node.anchor):
|
|
typ.yaml_set_anchor(node.anchor)
|
|
for key_node, value_node in node.value:
|
|
# keys can be list -> deep
|
|
key = self.construct_object(key_node, deep=True)
|
|
# lists are not hashable, but tuples are
|
|
if not isinstance(key, Hashable):
|
|
if isinstance(key, list):
|
|
key = tuple(key)
|
|
if PY2:
|
|
try:
|
|
hash(key)
|
|
except TypeError as exc:
|
|
raise ConstructorError(
|
|
'while constructing a mapping',
|
|
node.start_mark,
|
|
'found unacceptable key (%s)' % exc,
|
|
key_node.start_mark,
|
|
)
|
|
else:
|
|
if not isinstance(key, Hashable):
|
|
raise ConstructorError(
|
|
'while constructing a mapping',
|
|
node.start_mark,
|
|
'found unhashable key',
|
|
key_node.start_mark,
|
|
)
|
|
# construct but should be null
|
|
value = self.construct_object(value_node, deep=deep) # NOQA
|
|
self.check_set_key(node, key_node, typ, key)
|
|
if key_node.comment:
|
|
typ._yaml_add_comment(key_node.comment, key=key)
|
|
if value_node.comment:
|
|
typ._yaml_add_comment(value_node.comment, value=key)
|
|
typ.add(key)
|
|
|
|
def construct_yaml_seq(self, node):
|
|
# type: (Any) -> Any
|
|
data = CommentedSeq()
|
|
data._yaml_set_line_col(node.start_mark.line, node.start_mark.column)
|
|
if node.comment:
|
|
data._yaml_add_comment(node.comment)
|
|
yield data
|
|
data.extend(self.construct_rt_sequence(node, data))
|
|
self.set_collection_style(data, node)
|
|
|
|
def construct_yaml_map(self, node):
|
|
# type: (Any) -> Any
|
|
data = CommentedMap()
|
|
data._yaml_set_line_col(node.start_mark.line, node.start_mark.column)
|
|
yield data
|
|
self.construct_mapping(node, data, deep=True)
|
|
self.set_collection_style(data, node)
|
|
|
|
def set_collection_style(self, data, node):
|
|
# type: (Any, Any) -> None
|
|
if len(data) == 0:
|
|
return
|
|
if node.flow_style is True:
|
|
data.fa.set_flow_style()
|
|
elif node.flow_style is False:
|
|
data.fa.set_block_style()
|
|
|
|
def construct_yaml_object(self, node, cls):
|
|
# type: (Any, Any) -> Any
|
|
data = cls.__new__(cls)
|
|
yield data
|
|
if hasattr(data, '__setstate__'):
|
|
state = SafeConstructor.construct_mapping(self, node, deep=True)
|
|
data.__setstate__(state)
|
|
else:
|
|
state = SafeConstructor.construct_mapping(self, node)
|
|
data.__dict__.update(state)
|
|
|
|
def construct_yaml_omap(self, node):
|
|
# type: (Any) -> Any
|
|
# Note: we do now check for duplicate keys
|
|
omap = CommentedOrderedMap()
|
|
omap._yaml_set_line_col(node.start_mark.line, node.start_mark.column)
|
|
if node.flow_style is True:
|
|
omap.fa.set_flow_style()
|
|
elif node.flow_style is False:
|
|
omap.fa.set_block_style()
|
|
yield omap
|
|
if node.comment:
|
|
omap._yaml_add_comment(node.comment[:2])
|
|
if len(node.comment) > 2:
|
|
omap.yaml_end_comment_extend(node.comment[2], clear=True)
|
|
if not isinstance(node, SequenceNode):
|
|
raise ConstructorError(
|
|
'while constructing an ordered map',
|
|
node.start_mark,
|
|
'expected a sequence, but found %s' % node.id,
|
|
node.start_mark,
|
|
)
|
|
for subnode in node.value:
|
|
if not isinstance(subnode, MappingNode):
|
|
raise ConstructorError(
|
|
'while constructing an ordered map',
|
|
node.start_mark,
|
|
'expected a mapping of length 1, but found %s' % subnode.id,
|
|
subnode.start_mark,
|
|
)
|
|
if len(subnode.value) != 1:
|
|
raise ConstructorError(
|
|
'while constructing an ordered map',
|
|
node.start_mark,
|
|
'expected a single mapping item, but found %d items' % len(subnode.value),
|
|
subnode.start_mark,
|
|
)
|
|
key_node, value_node = subnode.value[0]
|
|
key = self.construct_object(key_node)
|
|
assert key not in omap
|
|
value = self.construct_object(value_node)
|
|
if key_node.comment:
|
|
omap._yaml_add_comment(key_node.comment, key=key)
|
|
if subnode.comment:
|
|
omap._yaml_add_comment(subnode.comment, key=key)
|
|
if value_node.comment:
|
|
omap._yaml_add_comment(value_node.comment, value=key)
|
|
omap[key] = value
|
|
|
|
def construct_yaml_set(self, node):
|
|
# type: (Any) -> Any
|
|
data = CommentedSet()
|
|
data._yaml_set_line_col(node.start_mark.line, node.start_mark.column)
|
|
yield data
|
|
self.construct_setting(node, data)
|
|
|
|
def construct_undefined(self, node):
|
|
# type: (Any) -> Any
|
|
try:
|
|
if isinstance(node, MappingNode):
|
|
data = CommentedMap()
|
|
data._yaml_set_line_col(node.start_mark.line, node.start_mark.column)
|
|
if node.flow_style is True:
|
|
data.fa.set_flow_style()
|
|
elif node.flow_style is False:
|
|
data.fa.set_block_style()
|
|
data.yaml_set_tag(node.tag)
|
|
yield data
|
|
if node.anchor:
|
|
data.yaml_set_anchor(node.anchor)
|
|
self.construct_mapping(node, data)
|
|
return
|
|
elif isinstance(node, ScalarNode):
|
|
data2 = TaggedScalar()
|
|
data2.value = self.construct_scalar(node)
|
|
data2.style = node.style
|
|
data2.yaml_set_tag(node.tag)
|
|
yield data2
|
|
if node.anchor:
|
|
data2.yaml_set_anchor(node.anchor, always_dump=True)
|
|
return
|
|
elif isinstance(node, SequenceNode):
|
|
data3 = CommentedSeq()
|
|
data3._yaml_set_line_col(node.start_mark.line, node.start_mark.column)
|
|
if node.flow_style is True:
|
|
data3.fa.set_flow_style()
|
|
elif node.flow_style is False:
|
|
data3.fa.set_block_style()
|
|
data3.yaml_set_tag(node.tag)
|
|
yield data3
|
|
if node.anchor:
|
|
data3.yaml_set_anchor(node.anchor)
|
|
data3.extend(self.construct_sequence(node))
|
|
return
|
|
except: # NOQA
|
|
pass
|
|
raise ConstructorError(
|
|
None,
|
|
None,
|
|
'could not determine a constructor for the tag %r' % utf8(node.tag),
|
|
node.start_mark,
|
|
)
|
|
|
|
def construct_yaml_timestamp(self, node, values=None):
|
|
# type: (Any, Any) -> Any
|
|
try:
|
|
match = self.timestamp_regexp.match(node.value)
|
|
except TypeError:
|
|
match = None
|
|
if match is None:
|
|
raise ConstructorError(
|
|
None,
|
|
None,
|
|
'failed to construct timestamp from "{}"'.format(node.value),
|
|
node.start_mark,
|
|
)
|
|
values = match.groupdict()
|
|
if not values['hour']:
|
|
return SafeConstructor.construct_yaml_timestamp(self, node, values)
|
|
for part in ['t', 'tz_sign', 'tz_hour', 'tz_minute']:
|
|
if values[part]:
|
|
break
|
|
else:
|
|
return SafeConstructor.construct_yaml_timestamp(self, node, values)
|
|
year = int(values['year'])
|
|
month = int(values['month'])
|
|
day = int(values['day'])
|
|
hour = int(values['hour'])
|
|
minute = int(values['minute'])
|
|
second = int(values['second'])
|
|
fraction = 0
|
|
if values['fraction']:
|
|
fraction_s = values['fraction'][:6]
|
|
while len(fraction_s) < 6:
|
|
fraction_s += '0'
|
|
fraction = int(fraction_s)
|
|
if len(values['fraction']) > 6 and int(values['fraction'][6]) > 4:
|
|
fraction += 1
|
|
delta = None
|
|
if values['tz_sign']:
|
|
tz_hour = int(values['tz_hour'])
|
|
minutes = values['tz_minute']
|
|
tz_minute = int(minutes) if minutes else 0
|
|
delta = datetime.timedelta(hours=tz_hour, minutes=tz_minute)
|
|
if values['tz_sign'] == '-':
|
|
delta = -delta
|
|
if delta:
|
|
dt = datetime.datetime(year, month, day, hour, minute)
|
|
dt -= delta
|
|
data = TimeStamp(dt.year, dt.month, dt.day, dt.hour, dt.minute, second, fraction)
|
|
data._yaml['delta'] = delta
|
|
tz = values['tz_sign'] + values['tz_hour']
|
|
if values['tz_minute']:
|
|
tz += ':' + values['tz_minute']
|
|
data._yaml['tz'] = tz
|
|
else:
|
|
data = TimeStamp(year, month, day, hour, minute, second, fraction)
|
|
if values['tz']: # no delta
|
|
data._yaml['tz'] = values['tz']
|
|
|
|
if values['t']:
|
|
data._yaml['t'] = True
|
|
return data
|
|
|
|
def construct_yaml_bool(self, node):
|
|
# type: (Any) -> Any
|
|
b = SafeConstructor.construct_yaml_bool(self, node)
|
|
if node.anchor:
|
|
return ScalarBoolean(b, anchor=node.anchor)
|
|
return b
|
|
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:null', RoundTripConstructor.construct_yaml_null
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:bool', RoundTripConstructor.construct_yaml_bool
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:int', RoundTripConstructor.construct_yaml_int
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:float', RoundTripConstructor.construct_yaml_float
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:binary', RoundTripConstructor.construct_yaml_binary
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:timestamp', RoundTripConstructor.construct_yaml_timestamp
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:omap', RoundTripConstructor.construct_yaml_omap
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:pairs', RoundTripConstructor.construct_yaml_pairs
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:set', RoundTripConstructor.construct_yaml_set
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:str', RoundTripConstructor.construct_yaml_str
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:seq', RoundTripConstructor.construct_yaml_seq
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(
|
|
u'tag:yaml.org,2002:map', RoundTripConstructor.construct_yaml_map
|
|
)
|
|
|
|
RoundTripConstructor.add_constructor(None, RoundTripConstructor.construct_undefined)
|