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'
84 pass_through_args = []
87 requires_an_argument = 'bootstrap.py: %s requires an argument\n'
89 def must_copy(dst, src):
90 if not os.path.exists(dst):
92 return open(dst, 'rb').read() != open(src, 'rb').read()
94 search = [os.path.dirname(sys.argv[0])]
95 if search[0] == '': search[0] = '.'
97 # Note: We don't use the getopt module to process the command-line
98 # arguments because we'd have to teach it about all of the SCons options.
100 command_line_args = sys.argv[1:]
102 while command_line_args:
103 arg = command_line_args.pop(0)
105 if arg == '--bootstrap_dir':
107 bootstrap_dir = command_line_args.pop(0)
109 sys.stderr.write(requires_an_argument % arg)
111 elif arg[:16] == '--bootstrap_dir=':
112 bootstrap_dir = arg[16:]
114 elif arg == '--bootstrap_force':
115 def must_copy(dst, src):
118 elif arg == '--bootstrap_src':
120 search.insert(0, command_line_args.pop(0))
122 sys.stderr.write(requires_an_argument % arg)
124 elif arg[:16] == '--bootstrap_src=':
125 search.insert(0, arg[16:])
127 elif arg == '--bootstrap_update':
130 elif arg in ('-C', '--directory'):
132 dir = command_line_args.pop(0)
134 sys.stderr.write(requires_an_argument % arg)
138 elif arg[:2] == '-C':
140 elif arg[:12] == '--directory=':
143 elif arg in ('-Y', '--repository'):
145 dir = command_line_args.pop(0)
147 sys.stderr.write(requires_an_argument % arg)
151 pass_through_args.extend([arg, dir])
152 elif arg[:2] == '-Y':
153 search.append(arg[2:])
154 pass_through_args.append(arg)
155 elif arg[:13] == '--repository=':
156 search.append(arg[13:])
157 pass_through_args.append(arg)
160 pass_through_args.append(arg)
162 def find(file, search=search):
164 f = os.path.join(dir, file)
165 if os.path.exists(f):
166 return os.path.normpath(f)
167 sys.stderr.write("could not find `%s' in search path:\n" % file)
168 sys.stderr.write("\t" + string.join(search, "\n\t") + "\n")
171 scons_py = os.path.join('src', 'script', 'scons.py')
172 src_engine = os.path.join('src', 'engine')
173 MANIFEST_in = find(os.path.join(src_engine, 'MANIFEST.in'))
175 files = [ scons_py ] + map(lambda x: os.path.join(src_engine, x[:-1]),
176 open(MANIFEST_in).readlines())
180 dst = os.path.join(bootstrap_dir, file)
181 if must_copy(dst, src):
182 dir = os.path.split(dst)[0]
183 if not os.path.isdir(dir):
187 open(dst, 'wb').write( open(src, 'rb').read() )
193 os.path.split(sys.executable)[1],
194 os.path.join(bootstrap_dir, scons_py)
195 ] + pass_through_args
197 sys.stdout.write(string.join(args, " ") + '\n')
200 os.environ['SCONS_LIB_DIR'] = os.path.join(bootstrap_dir, src_engine)
202 os.execve(sys.executable, args, os.environ)