ceph/src/boost/tools/build/src/util/logger.py

   1 # Copyright Pedro Ferreira 2005. Distributed under the Boost
   2 # Software License, Version 1.0. (See accompanying
   3 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   4
   5 import sys
   6
   7 class NullLogger:
   8     def __init__ (self):
   9         self.indent_ = ''
  10
  11     def log (self, source_name, *args):
  12         if self.on () and self.interesting (source_name):
  13             self.do_log (self.indent_)
  14             for i in args:
  15                 self.do_log (i)
  16             self.do_log ('\n')
  17
  18     def increase_indent (self):
  19         if self.on ():
  20             self.indent_ += '    '
  21
  22     def decrease_indent (self):
  23         if self.on () and len (self.indent_) > 4:
  24             self.indent_ = self.indent_ [-4:]
  25
  26     def do_log (self, *args):
  27         pass
  28
  29     def interesting (self, source_name):
  30         return False
  31
  32     def on (self):
  33         return True
  34
  35 class TextLogger (NullLogger):
  36     def __init__ (self):
  37         NullLogger.__init__ (self)
  38
  39     def do_log (self, arg):
  40             sys.stdout.write (str (arg))
  41
  42     def interesting (self, source_name):
  43         return True
  44
  45     def on (self):
  46         return True