4 # Permission is hereby granted, free of charge, to any person obtaining
5 # a copy of this software and associated documentation files (the
6 # "Software"), to deal in the Software without restriction, including
7 # without limitation the rights to use, copy, modify, merge, publish,
8 # distribute, sublicense, and/or sell copies of the Software, and to
9 # permit persons to whom the Software is furnished to do so, subject to
10 # the following conditions:
12 # The above copyright notice and this permission notice shall be included
13 # in all copies or substantial portions of the Software.
15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
16 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
17 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 __doc__ = """bootstrap.py
31 This script supports "bootstrap" execution of the current SCons in
32 this local source tree by copying of all necessary Python scripts and
33 modules from underneath the src/ subdirectory into a subdirectory (named
34 "bootstrap/" by default), and then executing the copied SCons with the
35 supplied command-line arguments.
37 There are a handful of options that are specific to this bootstrap.py
38 script and which are *not* passed on to the underlying SCons script.
39 All of these begin with the string "bootstrap_":
43 Sets the name of the directory into which the SCons files will
44 be copied. The default is "bootstrap" in the local subdirectory.
48 Forces a copy of all necessary files. By default, the
49 bootstrap.py script only updates the bootstrap copy if the
50 content of the source copy is different.
54 Searches for the SCons files relative to the specified DIR,
55 then relative to the directory in which this bootstrap.py
60 Only updates the bootstrap subdirectory, and then exits.
62 In addition to the above options, the bootstrap.py script understands
63 the following SCons options:
67 Changes to the specified directory before invoking SCons.
68 Because we change directory right away to the specified directory,
69 the SCons script itself doesn't need to, so this option gets
70 "eaten" by the bootstrap.py script.
74 These options are used under Aegis to specify a search path
75 for the source files that may not have been copied in to the
78 This is essentially a minimal build of SCons to bootstrap ourselves into
79 executing it for the full build of all the packages, as specified in our
80 local SConstruct file.
83 bootstrap_dir = 'bootstrap'
85 script_dir = os.path.split(__file__)[0]
87 # Pre-2.3 versions of Python don't have __file__.
88 script_dir = os.path.split(sys.argv[0])[0]
90 script_dir = os.getcwd()
91 elif not os.path.is_abs(script_dir):
92 script_dir = os.path.join(os.getcwd(), script_dir)
94 bootstrap_dir = os.path.join(script_dir, bootstrap_dir)
95 pass_through_args = []
98 requires_an_argument = 'bootstrap.py: %s requires an argument\n'
100 def must_copy(dst, src):
101 if not os.path.exists(dst):
103 return open(dst, 'rb').read() != open(src, 'rb').read()
105 search = [os.path.dirname(sys.argv[0])]
106 if search[0] == '': search[0] = '.'
108 # Note: We don't use the getopt module to process the command-line
109 # arguments because we'd have to teach it about all of the SCons options.
111 command_line_args = sys.argv[1:]
113 while command_line_args:
114 arg = command_line_args.pop(0)
116 if arg == '--bootstrap_dir':
118 bootstrap_dir = command_line_args.pop(0)
120 sys.stderr.write(requires_an_argument % arg)
122 elif arg[:16] == '--bootstrap_dir=':
123 bootstrap_dir = arg[16:]
125 elif arg == '--bootstrap_force':
126 def must_copy(dst, src):
129 elif arg == '--bootstrap_src':
131 search.insert(0, command_line_args.pop(0))
133 sys.stderr.write(requires_an_argument % arg)
135 elif arg[:16] == '--bootstrap_src=':
136 search.insert(0, arg[16:])
138 elif arg == '--bootstrap_update':
141 elif arg in ('-C', '--directory'):
143 dir = command_line_args.pop(0)
145 sys.stderr.write(requires_an_argument % arg)
149 elif arg[:2] == '-C':
151 elif arg[:12] == '--directory=':
154 elif arg in ('-Y', '--repository'):
156 dir = command_line_args.pop(0)
158 sys.stderr.write(requires_an_argument % arg)
162 pass_through_args.extend([arg, dir])
163 elif arg[:2] == '-Y':
164 search.append(arg[2:])
165 pass_through_args.append(arg)
166 elif arg[:13] == '--repository=':
167 search.append(arg[13:])
168 pass_through_args.append(arg)
171 pass_through_args.append(arg)
173 def find(file, search=search):
175 f = os.path.join(dir, file)
176 if os.path.exists(f):
177 return os.path.normpath(f)
178 sys.stderr.write("could not find `%s' in search path:\n" % file)
179 sys.stderr.write("\t" + string.join(search, "\n\t") + "\n")
182 scons_py = os.path.join('src', 'script', 'scons.py')
183 src_engine = os.path.join('src', 'engine')
184 MANIFEST_in = find(os.path.join(src_engine, 'MANIFEST.in'))
186 files = [ scons_py ] + map(lambda x: os.path.join(src_engine, x[:-1]),
187 open(MANIFEST_in).readlines())
191 dst = os.path.join(bootstrap_dir, file)
192 if must_copy(dst, src):
193 dir = os.path.split(dst)[0]
194 if not os.path.isdir(dir):
198 open(dst, 'wb').write( open(src, 'rb').read() )
204 os.path.split(sys.executable)[1],
205 os.path.join(bootstrap_dir, scons_py)
206 ] + pass_through_args
208 sys.stdout.write(string.join(args, " ") + '\n')
211 os.environ['SCONS_LIB_DIR'] = os.path.join(bootstrap_dir, src_engine)
213 os.execve(sys.executable, args, os.environ)
217 # indent-tabs-mode:nil
219 # vim: set expandtab tabstop=4 shiftwidth=4: