forked from mirrors/gecko-dev
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
# -*- coding: utf-8 -*-
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import absolute_import, print_function, unicode_literals
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import json
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import yaml
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from mozbuild.util import ReadOnlyDict
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class Parameters(ReadOnlyDict):
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"""An immutable dictionary with nicer KeyError messages on failure"""
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def __getitem__(self, k):
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try:
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return super(Parameters, self).__getitem__(k)
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except KeyError:
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raise KeyError("taskgraph parameter {!r} not found".format(k))
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def load_parameters_file(options):
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"""
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Load parameters from the --parameters option
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"""
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filename = options['parameters']
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if not filename:
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return Parameters()
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with open(filename) as f:
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if filename.endswith('.yml'):
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return Parameters(**yaml.safe_load(f))
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elif filename.endswith('.json'):
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return Parameters(**json.load(f))
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else:
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raise TypeError("Parameters file `{}` is not JSON or YAML".format(filename))
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