2171 

  2172         # need to inspect the ui object instead of using get() since we want to

  2173         # test for an int

  2174         hconf = ui.config('experimental', 'extendedheader.index')

  2175         if hconf is not None:

  2176             hlen = None

  2177             try:

  2178                 # the hash config could be an integer (for length of hash) or a

  2179                 # word (e.g. short, full, none)

  2180                 hlen = int(hconf)

  2181             except ValueError:

  2182                 # default value

  2183                 if hconf == 'short' or hconf == '':

  2184                     hlen = 12

  2185                 elif hconf == 'full':

  2186                     hlen = 40

  2187                 elif hconf != 'none':

  2188                     msg = _("invalid value for extendedheader.index: '%s'\n")

  2189                     ui.warn(msg % hconf)

  2190             finally:

  2191                 if hlen < 0 or hlen > 40:

  2192                     msg = _("invalid length for extendedheader.index: '%d'\n")

  2193                     ui.warn(msg % hlen)

  2194                 buildopts['index'] = hlen

  2195