Synnefo » snf-ganeti » ganeti-local

def CheckDict(target, template, logname=None):

  """Ensure a dictionary has a required set of keys.

  For the given dictionaries I{target} and I{template}, ensure

  I{target} has all the keys from I{template}. Missing keys are added

  with values from template.

  @type target: dict

  @param target: the dictionary to update

  @type template: dict

  @param template: the dictionary holding the default values

  @type logname: str or None

  @param logname: if not None, causes the missing keys to be

      logged with this name

  """

  missing = []

  for k in template:

    if k not in target:

      missing.append(k)

      target[k] = template[k]

  if missing and logname:

    logging.warning('%s missing keys %s', logname, ', '.join(missing))