summaryrefslogtreecommitdiff
path: root/src/script/scons.py
blob: a8438d896b01c1616a77d39a44c19646b391c12f (plain)
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
#! /usr/bin/env python
#
# SCons - a Software Constructor
#
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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/script/scons.py 4691 2010/03/06 16:22:36 bdbaddog"

__version__ = "1.2.0.d20100306"

__build__ = "r4691"

__buildsys__ = "mvdog"

__date__ = "2010/03/06 16:22:36"

__developer__ = "bdbaddog"

import os
import os.path
import sys

##############################################################################
# BEGIN STANDARD SCons SCRIPT HEADER
#
# This is the cut-and-paste logic so that a self-contained script can
# interoperate correctly with different SCons versions and installation
# locations for the engine.  If you modify anything in this section, you
# should also change other scripts that use this same header.
##############################################################################

# Strip the script directory from sys.path() so on case-insensitive
# (WIN32) systems Python doesn't think that the "scons" script is the
# "SCons" package.  Replace it with our own library directories
# (version-specific first, in case they installed by hand there,
# followed by generic) so we pick up the right version of the build
# engine modules if they're in either directory.


# Check to see if the python version is > 3.0 which is currently unsupported
# If so exit with error message
try:
    if  sys.version_info >= (3,0,0):
        msg = "scons: *** SCons version %s does not run under Python version %s.\n"
        sys.stderr.write(msg % (__version__, sys.version.split()[0]))
        sys.exit(1)
except AttributeError:
    # Pre-1.6 Python has no sys.version_info
    # No need to check version as we then know the version is < 3.0.0 and supported
    pass

script_dir = sys.path[0]

if script_dir in sys.path:
    sys.path.remove(script_dir)

libs = []

if os.environ.has_key("SCONS_LIB_DIR"):
    libs.append(os.environ["SCONS_LIB_DIR"])

local_version = 'scons-local-' + __version__
local = 'scons-local'
if script_dir:
    local_version = os.path.join(script_dir, local_version)
    local = os.path.join(script_dir, local)
libs.append(os.path.abspath(local_version))
libs.append(os.path.abspath(local))

scons_version = 'scons-%s' % __version__

prefs = []

if sys.platform == 'win32':
    # sys.prefix is (likely) C:\Python*;
    # check only C:\Python*.
    prefs.append(sys.prefix)
    prefs.append(os.path.join(sys.prefix, 'Lib', 'site-packages'))
else:
    # On other (POSIX) platforms, things are more complicated due to
    # the variety of path names and library locations.  Try to be smart
    # about it.
    if script_dir == 'bin':
        # script_dir is `pwd`/bin;
        # check `pwd`/lib/scons*.
        prefs.append(os.getcwd())
    else:
        if script_dir == '.' or script_dir == '':
            script_dir = os.getcwd()
        head, tail = os.path.split(script_dir)
        if tail == "bin":
            # script_dir is /foo/bin;
            # check /foo/lib/scons*.
            prefs.append(head)

    head, tail = os.path.split(sys.prefix)
    if tail == "usr":
        # sys.prefix is /foo/usr;
        # check /foo/usr/lib/scons* first,
        # then /foo/usr/local/lib/scons*.
        prefs.append(sys.prefix)
        prefs.append(os.path.join(sys.prefix, "local"))
    elif tail == "local":
        h, t = os.path.split(head)
        if t == "usr":
            # sys.prefix is /foo/usr/local;
            # check /foo/usr/local/lib/scons* first,
            # then /foo/usr/lib/scons*.
            prefs.append(sys.prefix)
            prefs.append(head)
        else:
            # sys.prefix is /foo/local;
            # check only /foo/local/lib/scons*.
            prefs.append(sys.prefix)
    else:
        # sys.prefix is /foo (ends in neither /usr or /local);
        # check only /foo/lib/scons*.
        prefs.append(sys.prefix)

    temp = map(lambda x: os.path.join(x, 'lib'), prefs)
    temp.extend(map(lambda x: os.path.join(x,
                                           'lib',
                                           'python' + sys.version[:3],
                                           'site-packages'),
                           prefs))
    prefs = temp

    # Add the parent directory of the current python's library to the
    # preferences.  On SuSE-91/AMD64, for example, this is /usr/lib64,
    # not /usr/lib.
    try:
        libpath = os.__file__
    except AttributeError:
        pass
    else:
        # Split /usr/libfoo/python*/os.py to /usr/libfoo/python*.
        libpath, tail = os.path.split(libpath)
        # Split /usr/libfoo/python* to /usr/libfoo
        libpath, tail = os.path.split(libpath)
        # Check /usr/libfoo/scons*.
        prefs.append(libpath)

    try:
        import pkg_resources
    except ImportError:
        pass
    else:
        # when running from an egg add the egg's directory 
        try:
            d = pkg_resources.get_distribution('scons')
        except pkg_resources.DistributionNotFound:
            pass
        else:
            prefs.append(d.location)

# Look first for 'scons-__version__' in all of our preference libs,
# then for 'scons'.
libs.extend(map(lambda x: os.path.join(x, scons_version), prefs))
libs.extend(map(lambda x: os.path.join(x, 'scons'), prefs))

sys.path = libs + sys.path

##############################################################################
# END STANDARD SCons SCRIPT HEADER
##############################################################################

if __name__ == "__main__":
    import SCons.Script
    # this does all the work, and calls sys.exit
    # with the proper exit status when done.
    SCons.Script.main()

# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4: