Synnefo » snf-ganeti

           "cli_option", "OutputTable",

SEP_OPT = make_option("--separator", default=None,

def OutputTable(headers, fields, separator, data,

                numfields=None, unitfields=None):

  """Prints a table with headers and different fields.

  Args:

    headers: Dict of header titles or None if no headers should be shown

    fields: List of fields to show

    separator: String used to separate fields or None for spaces

    data: Data to be printed

    numfields: List of fields to be aligned to right

    unitfields: List of fields to be formatted as units

  """

  if numfields is None:

    numfields = []

  if unitfields is None:

    unitfields = []

  format_fields = []

  for field in fields:

    if separator is not None:

      format_fields.append("%s")

    elif field in numfields:

      format_fields.append("%*s")

    else:

      format_fields.append("%-*s")

  if separator is None:

    mlens = [0 for name in fields]

    format = ' '.join(format_fields)

  else:

    format = separator.replace("%", "%%").join(format_fields)

  for row in data:

    for idx, val in enumerate(row):

      if fields[idx] in unitfields:

        try:

          val = int(val)

        except ValueError:

          pass

        else:

          val = row[idx] = utils.FormatUnit(val)

      if separator is None:

        mlens[idx] = max(mlens[idx], len(val))

  if headers:

    args = []

    for idx, name in enumerate(fields):

      hdr = headers[name]

      if separator is None:

        mlens[idx] = max(mlens[idx], len(hdr))

        args.append(mlens[idx])

      args.append(hdr)

    logger.ToStdout(format % tuple(args))

  for line in data:

    args = []

    for idx in xrange(len(fields)):

      if separator is None:

        args.append(mlens[idx])

      args.append(line[idx])

    logger.ToStdout(format % tuple(args))