58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
# Copyright (c) 2010-2012 OpenStack, LLC.
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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
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# 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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"""Miscellaneous utility functions for use with Swift."""
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TRUE_VALUES = set(('true', '1', 'yes', 'on', 't', 'y'))
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def config_true_value(value):
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"""
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Returns True if the value is either True or a string in TRUE_VALUES.
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Returns False otherwise.
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This function come from swift.common.utils.config_true_value()
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"""
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return value is True or \
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(isinstance(value, basestring) and value.lower() in TRUE_VALUES)
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def prt_bytes(bytes, human_flag):
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"""
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convert a number > 1024 to printable format, either in 4 char -h format as
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with ls -lh or return as 12 char right justified string
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"""
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if human_flag:
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suffix = ''
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mods = list('KMGTPEZY')
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temp = float(bytes)
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if temp > 0:
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while (temp > 1023):
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try:
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suffix = mods.pop(0)
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except IndexError:
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break
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temp /= 1024.0
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if suffix != '':
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if temp >= 10:
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bytes = '%3d%s' % (temp, suffix)
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else:
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bytes = '%.1f%s' % (temp, suffix)
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if suffix == '': # must be < 1024
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bytes = '%4s' % bytes
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else:
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bytes = '%12s' % bytes
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return(bytes)
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