Lumiera  0.pre.03
»edit your freedom«
ToolCCache.py
1 # coding: utf-8
2 
5 
6 # Copyright (C) Lumiera.org and FreeOrion.org
7 # 2008, Hermann Vosseler <Ichthyostega@web.de>
8 #
9 # **Lumiera** is free software; you can redistribute it and/or modify it
10 # under the terms of the GNU General Public License as published by the
11 # Free Software Foundation; either version 2 of the License, or (at your
12 # option) any later version. See the file COPYING for further details.
13 
14 
15 # This SCons builder was extracted from http://www.freeorion.org/
16 # FreeOrion is an open-source platform-independent galactic conquest game
17 #
18 # history: 12/2008 adapted for Lumiera build system
19 
20 
21 import os
22 from Buildhelper import *
23 
24 
25 def generate(env):
26  """ Modify the environment such as to redirect any
27  C/C++ compiler invocations through CCache, while using
28  CCache config variables found in the os.environment.
29  """
30  if not exists(env): return
31 
32  assert env['CCACHE']
33  if not env['CCACHE'] in env['CC']:
34  env['CC'] = env.subst('$CCACHE $CC')
35  if not env['CCACHE'] in env['CXX']:
36  env['CXX'] = env.subst('$CCACHE $CXX')
37  print env.subst("* Build using $CCACHE")
38 
39  for i in ['HOME'
40  ,'CCACHE_DIR'
41  ,'CCACHE_TEMPDIR'
42  ,'CCACHE_LOGFILE'
43  ,'CCACHE_PATH'
44  ,'CCACHE_CC'
45  ,'CCACHE_CPP2'
46  ,'CCACHE_PREFIX'
47  ,'CCACHE_DISABLE'
48  ,'CCACHE_READONLY'
49  ,'CCACHE_NOSTATS'
50  ,'CCACHE_NLEVELS'
51  ,'CCACHE_HARDLINK'
52  ,'CCACHE_RECACHE'
53  ,'CCACHE_UMASK'
54  ,'CCACHE_HASHDIR'
55  ,'CCACHE_UNIFY'
56  ,'CCACHE_EXTENSION'
57  ]:
58  if os.environ.has_key(i) and not env.has_key(i):
59  env['ENV'][i] = os.environ[i]
60 
61 
62 
63 def exists(env):
64  """ Ensure CCache is available.
65  """
66  return checkCommandOption(env, 'CCACHE', cmdName='ccache')
67