389         self.ui = ui

   389         self.ui = ui

   390         self._params = []

   390         self._params = []

   391         self._parts = []

   391         self._parts = []

   392         self.capabilities = dict(capabilities)

   392         self.capabilities = dict(capabilities)

   393 

   393 

   394     def addparam(self, name, value=None):

   395     def addparam(self, name, value=None):

   395         """add a stream level parameter"""

   396         """add a stream level parameter"""

   396         if not name:

   397         if not name:

   397             raise ValueError('empty parameter name')

   398             raise ValueError('empty parameter name')

   398         if name[0] not in string.letters:

   399         if name[0] not in string.letters:

   405         Parts contains the actual applicative payload."""

   406         Parts contains the actual applicative payload."""

   406         assert part.id is None

   407         assert part.id is None

   407         part.id = len(self._parts) # very cheap counter

   408         part.id = len(self._parts) # very cheap counter

   408         self._parts.append(part)

   409         self._parts.append(part)

   409 

   410 

   410     def getchunks(self):

   412     def getchunks(self):

   411         self.ui.debug('start emission of %s stream\n' % _magicstring)

   413         self.ui.debug('start emission of %s stream\n' % _magicstring)

   412         yield _magicstring

   414         yield _magicstring

   413         param = self._paramchunk()

   415         param = self._paramchunk()

   414         self.ui.debug('bundle parameter: %s\n' % param)

   416         self.ui.debug('bundle parameter: %s\n' % param)