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
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
|
"""SCons.Script.SConscript
This module defines the Python API provided to SConscript and SConstruct
files.
"""
#
# Copyright (c) 2001, 2002, 2003 Steven Knight
#
# 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__"
import SCons.Builder
import SCons.Defaults
import SCons.Environment
import SCons.Errors
import SCons.Node
import SCons.Node.FS
import SCons.Platform
import SCons.Tool
import SCons.Util
import SCons.Options
import SCons
import os
import os.path
import string
import sys
def do_nothing(text): pass
HelpFunction = do_nothing
default_targets = []
clean_targets = {}
arguments = {}
launch_dir = os.path.abspath(os.curdir)
# global exports set by Export():
global_exports = {}
# chdir flag
sconscript_chdir = 0
def SConscriptChdir(flag):
global sconscript_chdir
sconscript_chdir = flag
def _scons_add_args(alist):
global arguments
for arg in alist:
a, b = string.split(arg, '=', 2)
arguments[a] = b
class Frame:
"""A frame on the SConstruct/SConscript call stack"""
def __init__(self, exports):
self.globals = BuildDefaultGlobals()
self.retval = None
self.prev_dir = SCons.Node.FS.default_fs.getcwd()
self.exports = {} # exports from the calling SConscript
try:
if SCons.Util.is_List(exports):
for export in exports:
self.exports[export] = stack[-1].globals[export]
else:
for export in string.split(exports):
self.exports[export] = stack[-1].globals[export]
except KeyError, x:
raise SCons.Errors.UserError, "Export of non-existant variable '%s'"%x
# the SConstruct/SConscript call stack:
stack = []
# For documentation on the methods in this file, see the scons man-page
def Return(*vars):
retval = []
try:
for var in vars:
for v in string.split(var):
retval.append(stack[-1].globals[v])
except KeyError, x:
raise SCons.Errors.UserError, "Return of non-existant variable '%s'"%x
if len(retval) == 1:
stack[-1].retval = retval[0]
else:
stack[-1].retval = tuple(retval)
# This function is responsible for converting the parameters passed to
# SConscript() calls into a list of files and export variables. If
# the parameters are invalid, throws SCons.Errors.UserError. Returns a
# tuple (l, e) where l is a list of filenames and e is a list of
# exports.
def GetSConscriptFilenames(ls, kw):
files = []
exports = []
if len(ls) == 0:
try:
dirs = map(str, SCons.Util.argmunge(kw["dirs"]))
except KeyError:
raise SCons.Errors.UserError, \
"Invalid SConscript usage - no parameters"
name = kw.get('name', 'SConscript')
if kw.get('exports'):
exports = SCons.Util.argmunge(kw['exports'])
files = map(lambda n, name = name: os.path.join(n, name), dirs)
elif len(ls) == 1:
files = SCons.Util.argmunge(ls[0])
if kw.get('exports'):
exports = SCons.Util.argmunge(kw['exports'])
elif len(ls) == 2:
files = SCons.Util.argmunge(ls[0])
exports = SCons.Util.argmunge(ls[1])
if kw.get('exports'):
exports.extend(SCons.Util.argmunge(kw.get('exports')))
else:
raise SCons.Errors.UserError, \
"Invalid SConscript() usage - too many arguments"
return (files, exports)
def SConscript(*ls, **kw):
files, exports = GetSConscriptFilenames(ls, kw)
# evaluate each SConscript file
results = []
for fn in files:
stack.append(Frame(exports))
old_dir = None
old_sys_path = sys.path
try:
if fn == "-":
exec sys.stdin in stack[-1].globals
else:
if isinstance(fn, SCons.Node.Node):
f = fn
else:
f = SCons.Node.FS.default_fs.File(str(fn))
if f.rexists():
file = open(f.rstr(), "r")
SCons.Node.FS.default_fs.chdir(f.dir)
if sconscript_chdir:
old_dir = os.getcwd()
os.chdir(str(f.dir))
# prepend the SConscript directory to sys.path so
# that Python modules in the SConscript directory can
# be easily imported
sys.path = [os.path.abspath(str(f.dir))] + sys.path
exec file in stack[-1].globals
else:
sys.stderr.write("Ignoring missing SConscript '%s'\n" %
f.path)
finally:
sys.path = old_sys_path
frame = stack.pop()
SCons.Node.FS.default_fs.chdir(frame.prev_dir)
if old_dir:
os.chdir(old_dir)
results.append(frame.retval)
# if we only have one script, don't return a tuple
if len(results) == 1:
return results[0]
else:
return tuple(results)
def Default(*targets):
for t in targets:
if isinstance(t, SCons.Node.Node):
default_targets.append(t)
else:
default_targets.extend(SCons.Node.arg2nodes(t,
SCons.Node.FS.default_fs.Entry))
def Local(*targets):
for targ in targets:
if isinstance(targ, SCons.Node.Node):
targ.set_local()
else:
for t in SCons.Node.arg2nodes(targ, SCons.Node.FS.default_fs.Entry):
t.set_local()
def Help(text):
HelpFunction(text)
def BuildDir(build_dir, src_dir, duplicate=1):
SCons.Node.FS.default_fs.BuildDir(build_dir, src_dir, duplicate)
def GetBuildPath(files):
nodes = SCons.Node.arg2nodes(files, SCons.Node.FS.default_fs.Entry)
ret = map(str, nodes)
if len(ret) == 1:
return ret[0]
return ret
def FindFile(file, dirs):
nodes = SCons.Node.arg2nodes(dirs, SCons.Node.FS.default_fs.Dir)
return SCons.Node.FS.find_file(file, nodes)
def Export(*vars):
try:
for var in vars:
for v in string.split(var):
global_exports[v] = stack[-1].globals[v]
except KeyError, x:
raise SCons.Errors.UserError, "Export of non-existant variable '%s'"%x
def Import(*vars):
try:
for var in vars:
for v in string.split(var):
if stack[-1].exports.has_key(v):
stack[-1].globals[v] = stack[-1].exports[v]
else:
stack[-1].globals[v] = global_exports[v]
except KeyError,x:
raise SCons.Errors.UserError, "Import of non-existant variable '%s'"%x
def GetLaunchDir():
return launch_dir
def SetBuildSignatureType(type):
import SCons.Sig
if type == 'build':
SCons.Sig.build_signature = 1
elif type == 'content':
SCons.Sig.build_signature = 0
else:
raise SCons.Errors.UserError, "Unknown build signature type '%s'"%type
def SetContentSignatureType(type):
import SCons.Script
if type == 'MD5':
import SCons.Sig.MD5
SCons.Script.sig_module = SCons.Sig.MD5
elif type == 'timestamp':
import SCons.Sig.TimeStamp
SCons.Script.sig_module = SCons.Sig.TimeStamp
else:
raise SCons.Errors.UserError, "Unknown content signature type '%s'"%type
class Options(SCons.Options.Options):
def Update(self, env):
return SCons.Options.Options.Update(self, env, arguments)
def CheckVersion(major,minor,version_string):
"""Return 0 if 'major' and 'minor' are greater than the version
in 'version_string', and 1 otherwise."""
version = string.split(string.split(version_string, ' ')[0], '.')
if major > int(version[0]) or (major == int(version[0]) and minor > int(version[1])):
return 0
else:
return 1
def EnsureSConsVersion(major, minor):
"""Exit abnormally if the SCons version is not late enough."""
if not CheckVersion(major,minor,SCons.__version__):
print "SCons %d.%d or greater required, but you have SCons %s" %(major,minor,SCons.__version__)
sys.exit(2)
def EnsurePythonVersion(major, minor):
"""Exit abnormally if the Python version is not late enough."""
if not CheckVersion(major,minor,sys.version):
v = string.split(sys.version, " ", 1)[0]
print "Python %d.%d or greater required, but you have Python %s" %(major,minor,v)
sys.exit(2)
def GetJobs():
return SCons.Script.get_num_jobs(SCons.Script.options)
def SetJobs(num):
try:
tmp = int(num)
if tmp < 1:
raise ValueError
SCons.Script.num_jobs = tmp
except ValueError, x:
raise SCons.Errors.UserError, "A positive integer is required: %s"%repr(num)
def Clean(target, files):
if not isinstance(target, SCons.Node.Node):
target = SCons.Node.FS.default_fs.Entry(target, create=1)
if not SCons.Util.is_List(files):
files = [files]
nodes = []
for f in files:
if isinstance(f, SCons.Node.Node):
nodes.append(f)
else:
nodes.extend(SCons.Node.arg2nodes(f, SCons.Node.FS.default_fs.Entry))
s = str(target)
if clean_targets.has_key(s):
clean_targets[s].extend(nodes)
else:
clean_targets[s] = nodes
def BuildDefaultGlobals():
"""
Create a dictionary containing all the default globals for
SConscruct and SConscript files.
"""
globals = {}
globals['Action'] = SCons.Action.Action
globals['ARGUMENTS'] = arguments
globals['BuildDir'] = BuildDir
globals['Builder'] = SCons.Builder.Builder
globals['Clean'] = Clean
globals['CScan'] = SCons.Defaults.CScan
globals['Default'] = Default
globals['Dir'] = SCons.Node.FS.default_fs.Dir
globals['EnsurePythonVersion'] = EnsurePythonVersion
globals['EnsureSConsVersion'] = EnsureSConsVersion
globals['Environment'] = SCons.Environment.Environment
globals['Export'] = Export
globals['File'] = SCons.Node.FS.default_fs.File
globals['FindFile'] = FindFile
globals['GetBuildPath'] = GetBuildPath
globals['GetCommandHandler'] = SCons.Action.GetCommandHandler
globals['GetJobs'] = GetJobs
globals['GetLaunchDir'] = GetLaunchDir
globals['Help'] = Help
globals['Import'] = Import
globals['Library'] = SCons.Defaults.StaticLibrary
globals['Literal'] = SCons.Util.Literal
globals['Local'] = Local
globals['Object'] = SCons.Defaults.StaticObject
globals['Options'] = Options
globals['ParseConfig'] = SCons.Util.ParseConfig
globals['Platform'] = SCons.Platform.Platform
globals['Program'] = SCons.Defaults.Program
globals['Repository'] = SCons.Node.FS.default_fs.Repository
globals['Return'] = Return
globals['SConscript'] = SConscript
globals['SConscriptChdir'] = SConscriptChdir
globals['Scanner'] = SCons.Scanner.Base
globals['SetBuildSignatureType'] = SetBuildSignatureType
globals['SetCommandHandler'] = SCons.Action.SetCommandHandler
globals['SetContentSignatureType'] = SetContentSignatureType
globals['SetJobs'] = SetJobs
globals['SharedLibrary'] = SCons.Defaults.SharedLibrary
globals['SharedObject'] = SCons.Defaults.SharedObject
globals['Split'] = SCons.Util.Split
globals['StaticLibrary'] = SCons.Defaults.StaticLibrary
globals['StaticObject'] = SCons.Defaults.StaticObject
globals['Tool'] = SCons.Tool.Tool
globals['WhereIs'] = SCons.Util.WhereIs
return globals
|