summaryrefslogtreecommitdiff
path: root/script/scons
blob: c0fe872e707a9ede35cfa272cb3e602d735fd97c (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
198
199
200
201
202
203
204
205
206
207
208
209
210
#! /usr/bin/env python
#
# SCons - a Software Constructor
#
# Copyright (c) 2001 - 2019 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.

from __future__ import print_function

__revision__ = "src/script/scons.py a56bbd8c09fb219ab8a9673330ffcd55279219d0 2019-03-26 23:16:31 bdeegan"

__version__ = "3.0.5"

__build__ = "a56bbd8c09fb219ab8a9673330ffcd55279219d0"

__buildsys__ = "kufra"

__date__ = "2019-03-26 23:16:31"

__developer__ = "bdeegan"

# This is the entry point to the SCons program.
# The only job of this script is to work out where the guts of the program
# could be and import them, where the real work begins.
# SCons can be invoked several different ways
# - from an installed location
# - from a "local install" copy
# - from a source tree, which has a different dir struture than the other two
# Try to account for all those possibilities.

import os
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.
##############################################################################

# compatibility check
if (3,0,0) < sys.version_info < (3,5,0) or sys.version_info < (2,7,0):
    msg = "scons: *** SCons version %s does not run under Python version %s.\n\
Python 2.7 or >= 3.5 is required.\n"
    sys.stderr.write(msg % (__version__, sys.version.split()[0]))
    sys.exit(1)

# 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.
script_dir = os.path.dirname(os.path.realpath(__file__))
script_path = os.path.realpath(os.path.dirname(__file__))
if script_path in sys.path:
    sys.path.remove(script_path)

libs = []

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

# running from source takes 2nd priority (since 2.3.2), following SCONS_LIB_DIR
source_path = os.path.join(script_path, os.pardir, 'engine')
if os.path.isdir(source_path):
    libs.append(source_path)

# add local-install locations
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)
if os.path.isdir(local_version):
    libs.append(os.path.abspath(local_version))
if os.path.isdir(local):
    libs.append(os.path.abspath(local))

scons_version = 'scons-%s' % __version__

# preferred order of scons lookup paths
prefs = []

# if we can find package information, use it
try:
    import pkg_resources
except ImportError:
    pass
else:
    try:
        d = pkg_resources.get_distribution('scons')
    except pkg_resources.DistributionNotFound:
        pass
    else:
        prefs.append(d.location)

if sys.platform == 'win32':
    # Use only sys.prefix on Windows
    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.
    # Build up some possibilities, then transform them into candidates
    temp = []
    if script_dir == 'bin':
        # script_dir is `pwd`/bin;
        # check `pwd`/lib/scons*.
        temp.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*.
            temp.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*.
        temp.append(sys.prefix)
        temp.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*.
            temp.append(sys.prefix)
            temp.append(head)
        else:
            # sys.prefix is /foo/local;
            # check only /foo/local/lib/scons*.
            temp.append(sys.prefix)
    else:
        # sys.prefix is /foo (ends in neither /usr or /local);
        # check only /foo/lib/scons*.
        temp.append(sys.prefix)

    # suffix these to add to our original prefs:
    prefs.extend([os.path.join(x, 'lib') for x in temp])
    prefs.extend([os.path.join(x, 'lib', 'python' + sys.version[:3],
                               'site-packages') for x in temp])


    # Add the parent directory of the current python's library to the
    # preferences.  This picks up differences between, e.g., lib and lib64,
    # and finds the base location in case of a non-copying virtualenv.
    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)

# Look first for 'scons-__version__' in all of our preference libs,
# then for 'scons'.  Skip paths that do not exist.
libs.extend([os.path.join(x, scons_version) for x in prefs if os.path.isdir(x)])
libs.extend([os.path.join(x, 'scons') for x in prefs if os.path.isdir(x)])

sys.path = libs + sys.path

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

if __name__ == "__main__":
    try:
        import SCons.Script
    except ImportError:
        sys.stderr.write("SCons import failed. Unable to find engine files in:\n")
        for path in libs:
            sys.stderr.write("  {}\n".format(path))
        raise

    # 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: