lumiera_/admin/scons/ToolCCache.py

76 lines
2.4 KiB
Python

# -*- python -*-
##
## ToolCCache.py - SCons tool for integrating with CCache compiler cache
##
# Copyright (C) Lumiera.org and FreeOrion.org
# 2008, Hermann Vosseler <Ichthyostega@web.de>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#####################################################################
# This SCons builder was extracted from http://www.freeorion.org/
# FreeOrion is an open-source platform-independent galactic conquest game
#
# history: 12/2008 adapted for Lumiera build system
import os
from Buildhelper import *
def generate(env):
""" Modify the environment such as to redirect any
C/C++ compiler invocations through CCache, while using
CCache config variables found in the os.environment.
"""
if not exists(env): return
assert env['CCACHE']
if not env['CCACHE'] in env['CC']:
env['CC'] = env.subst('$CCACHE $CC')
if not env['CCACHE'] in env['CXX']:
env['CXX'] = env.subst('$CCACHE $CXX')
print env.subst("* Build using $CCACHE")
for i in ['HOME'
,'CCACHE_DIR'
,'CCACHE_TEMPDIR'
,'CCACHE_LOGFILE'
,'CCACHE_PATH'
,'CCACHE_CC'
,'CCACHE_CPP2'
,'CCACHE_PREFIX'
,'CCACHE_DISABLE'
,'CCACHE_READONLY'
,'CCACHE_NOSTATS'
,'CCACHE_NLEVELS'
,'CCACHE_HARDLINK'
,'CCACHE_RECACHE'
,'CCACHE_UMASK'
,'CCACHE_HASHDIR'
,'CCACHE_UNIFY'
,'CCACHE_EXTENSION'
]:
if os.environ.has_key(i) and not env.has_key(i):
env['ENV'][i] = os.environ[i]
def exists(env):
""" Ensure CCache is available.
"""
return checkCommandOption(env, 'CCACHE', cmdName='ccache')