1#! /usr/bin/env python
2#
3# SCons - a Software Constructor
4#
5# Copyright (c) 2001 - 2016 The SCons Foundation
6#
7# Permission is hereby granted, free of charge, to any person obtaining
8# a copy of this software and associated documentation files (the
9# "Software"), to deal in the Software without restriction, including
10# without limitation the rights to use, copy, modify, merge, publish,
11# distribute, sublicense, and/or sell copies of the Software, and to
12# permit persons to whom the Software is furnished to do so, subject to
13# the following conditions:
14#
15# The above copyright notice and this permission notice shall be included
16# in all copies or substantial portions of the Software.
17#
18# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
19# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
20# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25
26__revision__ = "src/script/scons.py rel_2.5.0:3544:95d356f188a3 2016/04/09 14:38:50 bdbaddog"
27
28__version__ = "2.5.0"
29
30__build__ = "rel_2.5.0:3544:95d356f188a3[MODIFIED]"
31
32__buildsys__ = "ubuntu1404-32bit"
33
34__date__ = "2016/04/09 14:38:50"
35
36__developer__ = "bdbaddog"
37
38import os
39import sys
40
41
42##############################################################################
43# BEGIN STANDARD SCons SCRIPT HEADER
44#
45# This is the cut-and-paste logic so that a self-contained script can
46# interoperate correctly with different SCons versions and installation
47# locations for the engine.  If you modify anything in this section, you
48# should also change other scripts that use this same header.
49##############################################################################
50
51# Strip the script directory from sys.path() so on case-insensitive
52# (WIN32) systems Python doesn't think that the "scons" script is the
53# "SCons" package.  Replace it with our own library directories
54# (version-specific first, in case they installed by hand there,
55# followed by generic) so we pick up the right version of the build
56# engine modules if they're in either directory.
57
58
59if sys.version_info >= (3,0,0):
60    msg = "scons: *** SCons version %s does not run under Python version %s.\n\
61Python 3 is not yet supported.\n"
62    sys.stderr.write(msg % (__version__, sys.version.split()[0]))
63    sys.exit(1)
64
65
66script_dir = sys.path[0]
67
68if script_dir in sys.path:
69    sys.path.remove(script_dir)
70
71libs = []
72
73if "SCONS_LIB_DIR" in os.environ:
74    libs.append(os.environ["SCONS_LIB_DIR"])
75
76# - running from source takes priority (since 2.3.2), excluding SCONS_LIB_DIR settings
77script_path = os.path.abspath(os.path.dirname(__file__))
78source_path = os.path.join(script_path, '..', 'engine')
79libs.append(source_path)
80
81local_version = 'scons-local-' + __version__
82local = 'scons-local'
83if script_dir:
84    local_version = os.path.join(script_dir, local_version)
85    local = os.path.join(script_dir, local)
86libs.append(os.path.abspath(local_version))
87libs.append(os.path.abspath(local))
88
89scons_version = 'scons-%s' % __version__
90
91# preferred order of scons lookup paths
92prefs = []
93
94
95# - running from egg check
96try:
97    import pkg_resources
98except ImportError:
99    pass
100else:
101    # when running from an egg add the egg's directory
102    try:
103        d = pkg_resources.get_distribution('scons')
104    except pkg_resources.DistributionNotFound:
105        pass
106    else:
107        prefs.append(d.location)
108
109if sys.platform == 'win32':
110    # sys.prefix is (likely) C:\Python*;
111    # check only C:\Python*.
112    prefs.append(sys.prefix)
113    prefs.append(os.path.join(sys.prefix, 'Lib', 'site-packages'))
114else:
115    # On other (POSIX) platforms, things are more complicated due to
116    # the variety of path names and library locations.  Try to be smart
117    # about it.
118    if script_dir == 'bin':
119        # script_dir is `pwd`/bin;
120        # check `pwd`/lib/scons*.
121        prefs.append(os.getcwd())
122    else:
123        if script_dir == '.' or script_dir == '':
124            script_dir = os.getcwd()
125        head, tail = os.path.split(script_dir)
126        if tail == "bin":
127            # script_dir is /foo/bin;
128            # check /foo/lib/scons*.
129            prefs.append(head)
130
131    head, tail = os.path.split(sys.prefix)
132    if tail == "usr":
133        # sys.prefix is /foo/usr;
134        # check /foo/usr/lib/scons* first,
135        # then /foo/usr/local/lib/scons*.
136        prefs.append(sys.prefix)
137        prefs.append(os.path.join(sys.prefix, "local"))
138    elif tail == "local":
139        h, t = os.path.split(head)
140        if t == "usr":
141            # sys.prefix is /foo/usr/local;
142            # check /foo/usr/local/lib/scons* first,
143            # then /foo/usr/lib/scons*.
144            prefs.append(sys.prefix)
145            prefs.append(head)
146        else:
147            # sys.prefix is /foo/local;
148            # check only /foo/local/lib/scons*.
149            prefs.append(sys.prefix)
150    else:
151        # sys.prefix is /foo (ends in neither /usr or /local);
152        # check only /foo/lib/scons*.
153        prefs.append(sys.prefix)
154
155    temp = [os.path.join(x, 'lib') for x in prefs]
156    temp.extend([os.path.join(x,
157                                           'lib',
158                                           'python' + sys.version[:3],
159                                           'site-packages') for x in prefs])
160    prefs = temp
161
162    # Add the parent directory of the current python's library to the
163    # preferences.  On SuSE-91/AMD64, for example, this is /usr/lib64,
164    # not /usr/lib.
165    try:
166        libpath = os.__file__
167    except AttributeError:
168        pass
169    else:
170        # Split /usr/libfoo/python*/os.py to /usr/libfoo/python*.
171        libpath, tail = os.path.split(libpath)
172        # Split /usr/libfoo/python* to /usr/libfoo
173        libpath, tail = os.path.split(libpath)
174        # Check /usr/libfoo/scons*.
175        prefs.append(libpath)
176
177# Look first for 'scons-__version__' in all of our preference libs,
178# then for 'scons'.
179libs.extend([os.path.join(x, scons_version) for x in prefs])
180libs.extend([os.path.join(x, 'scons') for x in prefs])
181
182sys.path = libs + sys.path
183
184##############################################################################
185# END STANDARD SCons SCRIPT HEADER
186##############################################################################
187
188if __name__ == "__main__":
189    try:
190        import SCons.Script
191    except ImportError:
192        print("SCons import failed. Unable to find engine files in:")
193        for path in libs:
194            print("  %s" % path)
195        raise
196
197    # this does all the work, and calls sys.exit
198    # with the proper exit status when done.
199    SCons.Script.main()
200
201# Local Variables:
202# tab-width:4
203# indent-tabs-mode:nil
204# End:
205# vim: set expandtab tabstop=4 shiftwidth=4:
206