56 lines
1.9 KiB
Python
56 lines
1.9 KiB
Python
# -*- coding: utf-8 -*- #
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# Copyright 2021 Google LLC. All 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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"""Core labels_util extended with GCF specific behavior."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import unicode_literals
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from googlecloudsdk.command_lib.util.args import labels_util
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class Diff(labels_util.Diff):
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"""Computes changes to labels.
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Similar to the core class, but it allows specifying labels that will be
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added if not present or removed either via --remove-labels or
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--clear-labels.
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"""
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@classmethod
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def FromUpdateArgs(cls, args, enable_clear=True, required_labels=None):
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"""Initializes a Diff based on the arguments in AddUpdateLabelsFlags.
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Args:
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args: The parsed args
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enable_clear: whether --clear-labels flag is enabled
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required_labels: dict of labels that will be added unless they're removed
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explicitly or via clear
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Returns:
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The label updates Diff that needs to be applied to the exisiting labels.
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"""
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if enable_clear:
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clear = args.clear_labels
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if clear:
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# don't add labels on clear
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required_labels = {}
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else:
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clear = None
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addition = required_labels if required_labels else {}
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if args.update_labels:
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addition.update(args.update_labels)
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return cls(addition, args.remove_labels, clear)
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