ceph/src/boost/tools/build/src/tools/message.py

   1 # Status: ported.
   2 # Base revision: 64488.
   3 #
   4 # Copyright 2008, 2010 Vladimir Prus
   5 # Distributed under the Boost Software License, Version 1.0.
   6 # (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
   7
   8 # Defines main target type 'message', that prints a message when built for the
   9 # first time.
  10
  11 import b2.build.targets as targets
  12 import b2.build.property_set as property_set
  13
  14 from b2.manager import get_manager
  15
  16 class MessageTargetClass(targets.BasicTarget):
  17
  18     def __init__(self, name, project, sources, requirements, default_build,
  19                  usage_requirements, *args):
  20         targets.BasicTarget.__init__(
  21             self, name, project, sources, requirements, default_build, usage_requirements)
  22         self.args = args
  23         self.built = False
  24
  25     def construct(self, name, sources, ps):
  26
  27         if not self.built:
  28             for arg in self.args:
  29                 if type(arg) == type([]):
  30                     arg = " ".join(arg)
  31                 print arg
  32             self.built = True
  33
  34         return (property_set.empty(), [])
  35
  36 def message(name, *args):
  37
  38     if type(name) == type([]):
  39         name = name[0]
  40
  41     t = get_manager().targets()
  42     project = get_manager().projects().current()
  43
  44     return t.main_target_alternative(
  45         MessageTargetClass(
  46             name, project,
  47             t.main_target_sources([], name),
  48             t.main_target_requirements([], project),
  49             t.main_target_default_build([], project),
  50             t.main_target_usage_requirements([], project),
  51             *args
  52         ))
  53
  54 get_manager().projects().add_rule("message", message)