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#
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "src/engine/SCons/Tool/MSCommon/common.py 4043 2009/02/23 09:06:45 scons"
__doc__ = """
Common helper functions for working with
"""
import copy
import os
import subprocess
import re
import SCons.Util
logfile = os.environ.get('SCONS_MSCOMMON_DEBUG')
if logfile:
try:
import logging
except ImportError:
debug = lambda x: open(logfile, 'a').write(x + '\n')
else:
logging.basicConfig(filename=logfile, level=logging.DEBUG)
debug = logging.debug
else:
debug = lambda x: None
# TODO(sgk): unused
def is_win64():
"""Return true if running on windows 64 bits."""
# Unfortunately, python does not seem to have anything useful: neither
# sys.platform nor os.name gives something different on windows running on
# 32 bits or 64 bits. Note that we don't care about whether python itself
# is 32 or 64 bits here
value = "Software\Wow6432Node"
yo = SCons.Util.RegGetValue(SCons.Util.HKEY_LOCAL_MACHINE, value)[0]
if yo is None:
return 0
else:
return 1
def read_reg(value):
return SCons.Util.RegGetValue(SCons.Util.HKEY_LOCAL_MACHINE, value)[0]
# Functions for fetching environment variable settings from batch files.
def normalize_env(env, keys):
"""Given a dictionary representing a shell environment, add the variables
from os.environ needed for the processing of .bat files; the keys are
controlled by the keys argument.
It also makes sure the environment values are correctly encoded.
Note: the environment is copied"""
normenv = {}
if env:
for k in env.keys():
normenv[k] = copy.deepcopy(env[k]).encode('mbcs')
for k in keys:
if os.environ.has_key(k):
normenv[k] = os.environ[k].encode('mbcs')
return normenv
def get_output(vcbat, args = None, env = None):
"""Parse the output of given bat file, with given args."""
if args:
debug("Calling '%s %s'" % (vcbat, args))
popen = subprocess.Popen('"%s" %s & set' % (vcbat, args),
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=env)
else:
debug("Calling '%s'" % vcbat)
popen = subprocess.Popen('"%s" & set' % vcbat,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=env)
# Use the .stdout and .stderr attributes directly because the
# .communicate() method uses the threading module on Windows
# and won't work under Pythons not built with threading.
stdout = popen.stdout.read()
if popen.wait() != 0:
raise IOError(popen.stderr.read().decode("mbcs"))
output = stdout.decode("mbcs")
return output
def parse_output(output, keep = ("INCLUDE", "LIB", "LIBPATH", "PATH")):
# dkeep is a dict associating key: path_list, where key is one item from
# keep, and pat_list the associated list of paths
# TODO(1.5): replace with the following list comprehension:
#dkeep = dict([(i, []) for i in keep])
dkeep = dict(map(lambda i: (i, []), keep))
# rdk will keep the regex to match the .bat file output line starts
rdk = {}
for i in keep:
rdk[i] = re.compile('%s=(.*)' % i, re.I)
def add_env(rmatch, key):
plist = rmatch.group(1).split(os.pathsep)
for p in plist:
# Do not add empty paths (when a var ends with ;)
if p:
p = p.encode('mbcs')
# XXX: For some reason, VC98 .bat file adds "" around the PATH
# values, and it screws up the environment later, so we strip
# it.
p = p.strip('"')
dkeep[key].append(p)
for line in output.splitlines():
for k,v in rdk.items():
m = v.match(line)
if m:
add_env(m, k)
return dkeep
# TODO(sgk): unused
def output_to_dict(output):
"""Given an output string, parse it to find env variables.
Return a dict where keys are variables names, and values their content"""
envlinem = re.compile(r'^([a-zA-z0-9]+)=([\S\s]*)$')
parsedenv = {}
for line in output.splitlines():
m = envlinem.match(line)
if m:
parsedenv[m.group(1)] = m.group(2)
return parsedenv
# TODO(sgk): unused
def get_new(l1, l2):
"""Given two list l1 and l2, return the items in l2 which are not in l1.
Order is maintained."""
# We don't try to be smart: lists are small, and this is not the bottleneck
# is any case
new = []
for i in l2:
if i not in l1:
new.append(i)
return new
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4:
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