42     def serve_one(self):

    42     def serve_one(self):

    43         cmd = self.fin.readline()[:-1]

    43         cmd = self.fin.readline()[:-1]

    44         if cmd:

    44         if cmd:

    45             impl = getattr(self, 'do_' + cmd, None)

    45             impl = getattr(self, 'do_' + cmd, None)

    46             if impl: impl()

    46             if impl: impl()

    47         return cmd != ''

    48         return cmd != ''

    48 

    49 

    49     def do_heads(self):

    50     def do_heads(self):

    50         h = self.repo.heads()

    51         h = self.repo.heads()

    51         self.respond(" ".join(map(hex, h)) + "\n")

    52         self.respond(" ".join(map(hex, h)) + "\n")