172         'diffopts': None,

   172         'diffopts': None,

   173         'followrename': True,

   173         'followrename': True,

   174         'followmerge': True,

   174         'followmerge': True,

   175     }

   175     }

   176 

   176 

   177     def __init__(self, **opts):

   181     def __init__(self, **opts):

   178         for k, v in self.defaults.items():

   182         for k, v in self.defaults.items():

   179             setattr(self, k, opts.get(k, v))

   183             setattr(self, k, opts.get(k, v))

   180 

   184 

   181     @util.propertycache

   185     @util.propertycache

   183         """represent opts in a short string, suitable for a directory name"""

   187         """represent opts in a short string, suitable for a directory name"""

   184         result = b''

   188         result = b''

   185         if not self.followrename:

   189         if not self.followrename:

   186             result += b'r0'

   190             result += b'r0'

   187         if not self.followmerge:

   191         if not self.followmerge: