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Viewing changes to hooks/charmhelpers/core/strutils.py

  • Committer: bbaqar at plumgrid
  • Date: 2016-04-25 09:21:09 UTC
  • mfrom: (26.1.2 plumgrid-gateway)
  • Revision ID: bbaqar@plumgrid.com-20160425092109-kweey25bx97pmj80
Merge: Liberty/Mitaka support

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hooks/charmhelpers/core/strutils.py
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# along with charm-helpers.  If not, see <http://www.gnu.org/licenses/>.
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import six
 
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import re
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def bool_from_string(value):
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    msg = "Unable to interpret string value '%s' as boolean" % (value)
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    raise ValueError(msg)
 
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def bytes_from_string(value):
 
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    """Interpret human readable string value as bytes.
 
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    Returns int
 
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    """
 
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    BYTE_POWER = {
 
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        'K': 1,
 
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        'KB': 1,
 
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        'M': 2,
 
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        'MB': 2,
 
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        'G': 3,
 
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        'GB': 3,
 
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        'T': 4,
 
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        'TB': 4,
 
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        'P': 5,
 
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        'PB': 5,
 
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    }
 
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    if isinstance(value, six.string_types):
 
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        value = six.text_type(value)
 
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    else:
 
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        msg = "Unable to interpret non-string value '%s' as boolean" % (value)
 
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        raise ValueError(msg)
 
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    matches = re.match("([0-9]+)([a-zA-Z]+)", value)
 
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    if not matches:
 
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        msg = "Unable to interpret string value '%s' as bytes" % (value)
 
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        raise ValueError(msg)
 
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    return int(matches.group(1)) * (1024 ** BYTE_POWER[matches.group(2)])