1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
#
# __COPYRIGHT__
#
# 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__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
__doc__ = """
Common helper functions for working with the Microsoft tool chain.
"""
import copy
import os
import subprocess
import re
import SCons.Util
logfile = os.environ.get('SCONS_MSCOMMON_DEBUG')
if logfile == '-':
def debug(x):
print x
elif 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
_is_win64 = None
def is_win64():
"""Return true if running on windows 64 bits.
Works whether python itself runs in 64 bits or 32 bits."""
# Unfortunately, python does not provide a useful way to determine
# if the underlying Windows OS is 32-bit or 64-bit. Worse, whether
# the Python itself is 32-bit or 64-bit affects what it returns,
# so nothing in sys.* or os.* help.
# Apparently the best solution is to use env vars that Windows
# sets. If PROCESSOR_ARCHITECTURE is not x86, then the python
# process is running in 64 bit mode (on a 64-bit OS, 64-bit
# hardware, obviously).
# If this python is 32-bit but the OS is 64, Windows will set
# ProgramW6432 and PROCESSOR_ARCHITEW6432 to non-null.
# (Checking for HKLM\Software\Wow6432Node in the registry doesn't
# work, because some 32-bit installers create it.)
global _is_win64
if _is_win64 is None:
# I structured these tests to make it easy to add new ones or
# add exceptions in the future, because this is a bit fragile.
_is_win64 = False
if os.environ.get('PROCESSOR_ARCHITECTURE','x86') != 'x86':
_is_win64 = True
if os.environ.get('PROCESSOR_ARCHITEW6432'):
_is_win64 = True
if os.environ.get('ProgramW6432'):
_is_win64 = True
return _is_win64
def read_reg(value):
return SCons.Util.RegGetValue(SCons.Util.HKEY_LOCAL_MACHINE, value)[0]
def has_reg(value):
"""Return True if the given key exists in HKEY_LOCAL_MACHINE, False
otherwise."""
try:
SCons.Util.RegOpenKeyEx(SCons.Util.HKEY_LOCAL_MACHINE, value)
ret = True
except WindowsError:
ret = False
return ret
# 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 k in os.environ:
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([(i, []) for i in 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, dkeep=dkeep):
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:
|
