32 lines
1.1 KiB
Python
32 lines
1.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2014 Yahoo! Inc. All Rights Reserved.
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#
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# 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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# These map what action states will cause what other action states to be
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# removed (aka the inverse operations of each state). This is used so that
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# we can skip states that have already completed as well as redo states when
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# the inverse is applied.
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_INVERSES = {
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"download": [],
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"download-patch": [],
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}
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def reverts(action):
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try:
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return list(_INVERSES[action])
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except KeyError:
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return []
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