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41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
# Copyright 2016 Google Inc. 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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"""Generic class for determining the desired host operating system."""
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from absl import flags
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from glazier.lib.spec import flags as flag_spec
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SPEC_OPTS = {
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'flag': flag_spec,
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}
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FLAGS = flags.FLAGS
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flags.DEFINE_enum(
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'glazier_spec', None,
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list(SPEC_OPTS.keys()),
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('Which host specification module to use for determining host features '
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'like Hostname and OS.'))
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class UnknownSpec(Exception):
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pass
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def GetModule():
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try:
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return SPEC_OPTS[FLAGS.glazier_spec]
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except KeyError:
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raise UnknownSpec(FLAGS.glazier_spec)
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