54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import yaml
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from yaml import YAMLObject, YAMLError # noqa: F401
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try:
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# Explicit type ignore to deal with provisional import failure
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from yaml import cyaml # type: ignore
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import _yaml
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SafeLoader = cyaml.CSafeLoader
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SafeDumper = cyaml.CSafeDumper
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Mark = _yaml.Mark
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except ImportError:
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SafeLoader = yaml.SafeLoader
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SafeDumper = yaml.SafeDumper
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Mark = yaml.Mark
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class UnsafeTag(yaml.YAMLObject):
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yaml_tag = u'!unsafe'
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yaml_dumper = yaml.SafeDumper
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yaml_loader = yaml.SafeLoader
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def __init__(self, unsafe_var):
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self.unsafe_var = unsafe_var
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@classmethod
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def from_yaml(cls, loader, node):
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return UnsafeTag(node.value)
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@classmethod
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def to_yaml(cls, dumper, data):
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return dumper.represent_scalar(cls.yaml_tag, data.unsafe_var)
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def __str__(self):
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return self.unsafe_var
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def safe_load(stream, *args, **kwargs):
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return yaml.load(stream, *args, Loader=SafeLoader, **kwargs)
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def safe_dump(stream, *args, **kwargs):
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return yaml.dump(stream, *args, Dumper=SafeDumper, **kwargs)
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