37 lines
1.4 KiB
Python
37 lines
1.4 KiB
Python
# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import collections
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def deep_merge(dct, merge_dct):
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"""Recursive dict merge. Inspired by :meth:``dict.update()``, instead of
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updating only top-level keys, deep_merge recurses down into dicts nested
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to an arbitrary depth, updating keys. The ``merge_dct`` is merged into
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``dct``, except for merge conflicts, which are resolved by prioritizing
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the ``dct`` value.
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Borrowed from: https://gist.github.com/angstwad/bf22d1822c38a92ec0a9#file-deep_merge-py # noqa
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:param dct: dict onto which the merge is executed
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:param merge_dct: dct merged into dct
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:return: None
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"""
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for k, v in merge_dct.items():
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if (k in dct and isinstance(dct[k], dict)
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and isinstance(merge_dct[k], collections.Mapping)):
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deep_merge(dct[k], merge_dct[k])
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else:
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dct[k] = merge_dct[k]
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