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authorLuca Falavigna <dktrkranz@debian.org>2014-04-26 15:11:58 +0200
committerLuca Falavigna <dktrkranz@debian.org>2014-04-26 15:11:58 +0200
commit140d836e9cd54fb67b969fd82ef7ed19ba574d40 (patch)
tree0df3e32ee39603d43f9b90fd2f2e1f7cce4249d4 /bootstrap.py
parentcb3425abe0bc2d05caf401ca24b82a25a81f009d (diff)
Imported Upstream version 2.3.1upstream/2.3.1
Diffstat (limited to 'bootstrap.py')
-rwxr-xr-xbootstrap.py222
1 files changed, 222 insertions, 0 deletions
diff --git a/bootstrap.py b/bootstrap.py
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+#!/usr/bin/env python
+#
+# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 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.
+#
+
+import os
+import os.path
+import sys
+import glob
+import subprocess
+
+__doc__ = """bootstrap.py
+
+Execute SCons from this source tree. It copies Python scripts and modules
+from src/ subdirectory into a subdirectory named "bootstrap/" (by default),
+and executes SCons from there with the supplied command-line arguments.
+
+This is a minimal build of SCons to bootstrap the full build of all the
+packages, as specified in our local SConstruct file.
+
+Some options are specific to this bootstrap.py script and are *not* passed
+on to the SCons script. All of these begin with the string "bootstrap_":
+
+ --bootstrap_dir=DIR
+
+ Sets the name of the directory into which the SCons files will
+ be copied. The default is "bootstrap" in the local subdirectory.
+
+ --bootstrap_force
+
+ Forces a copy of all necessary files. By default, the
+ bootstrap.py script only updates the bootstrap copy if the
+ content of the source copy is different.
+
+ --bootstrap_src=DIR
+
+ Searches for the SCons files relative to the specified DIR,
+ then relative to the directory in which this bootstrap.py
+ script is found.
+
+ --bootstrap_update
+
+ Only updates the bootstrap subdirectory, and then exits.
+
+In addition to the above, the bootstrap.py script understands
+the following SCons options:
+
+ -C, --directory
+
+ Changes to the specified directory before invoking SCons.
+ Because we change directory right away to the specified directory,
+ the SCons script itself doesn't need to, so this option gets
+ "eaten" by the bootstrap.py script.
+"""
+
+def parseManifestLines(basedir, lines):
+ """ Scans the single lines of a MANIFEST file,
+ and returns the list of source files.
+ Has basic support for recursive globs '**',
+ filename wildcards of the form '*.xml' and
+ comment lines, starting with a '#'.
+ """
+ sources = []
+ basewd = os.path.abspath(basedir)
+ for l in lines:
+ if l.startswith('#'):
+ # Skip comments
+ continue
+ l = l.rstrip('\n')
+ if l.endswith('**'):
+ # Glob all files recursively
+ globwd = os.path.dirname(os.path.join(basewd, l))
+ for path, dirs, files in os.walk(globwd):
+ for f in files:
+ fpath = os.path.join(globwd, path, f)
+ sources.append(os.path.relpath(fpath, basewd))
+ elif '*' in l:
+ # Glob file pattern
+ files = glob.glob(os.path.join(basewd, l))
+ for f in files:
+ sources.append(os.path.relpath(f, basewd))
+ else:
+ sources.append(l)
+
+ return sources
+
+def main():
+ script_dir = os.path.abspath(os.path.dirname(__file__))
+
+ bootstrap_dir = os.path.join(script_dir, 'bootstrap')
+
+ pass_through_args = []
+ update_only = None
+
+ requires_an_argument = 'bootstrap.py: %s requires an argument\n'
+
+ search = [script_dir]
+
+ def find(file, search=search):
+ for dir in search:
+ f = os.path.join(dir, file)
+ if os.path.exists(f):
+ return os.path.normpath(f)
+ sys.stderr.write("could not find `%s' in search path:\n" % file)
+ sys.stderr.write("\t" + "\n\t".join(search) + "\n")
+ sys.exit(2)
+
+ def must_copy(dst, src):
+ if not os.path.exists(dst):
+ return 1
+ return open(dst, 'rb').read() != open(src, 'rb').read()
+
+ # Note: We don't use the getopt module to process the command-line
+ # arguments because we'd have to teach it about all of the SCons options.
+
+ command_line_args = sys.argv[1:]
+
+ while command_line_args:
+ arg = command_line_args.pop(0)
+
+ if arg == '--bootstrap_dir':
+ try:
+ bootstrap_dir = command_line_args.pop(0)
+ except IndexError:
+ sys.stderr.write(requires_an_argument % arg)
+ sys.exit(1)
+ elif arg[:16] == '--bootstrap_dir=':
+ bootstrap_dir = arg[16:]
+
+ elif arg == '--bootstrap_force':
+ def must_copy(dst, src):
+ return 1
+
+ elif arg == '--bootstrap_src':
+ try:
+ search.insert(0, command_line_args.pop(0))
+ except IndexError:
+ sys.stderr.write(requires_an_argument % arg)
+ sys.exit(1)
+ elif arg[:16] == '--bootstrap_src=':
+ search.insert(0, arg[16:])
+
+ elif arg == '--bootstrap_update':
+ update_only = 1
+
+ elif arg in ('-C', '--directory'):
+ try:
+ dir = command_line_args.pop(0)
+ except IndexError:
+ sys.stderr.write(requires_an_argument % arg)
+ sys.exit(1)
+ else:
+ os.chdir(dir)
+ elif arg[:2] == '-C':
+ os.chdir(arg[2:])
+ elif arg[:12] == '--directory=':
+ os.chdir(arg[12:])
+
+ else:
+ pass_through_args.append(arg)
+
+
+ scons_py = os.path.join('src', 'script', 'scons.py')
+ src_engine = os.path.join('src', 'engine')
+ MANIFEST_in = find(os.path.join(src_engine, 'MANIFEST.in'))
+
+ files = [ scons_py ] + [os.path.join(src_engine, x)
+ for x in parseManifestLines(os.path.join(script_dir, src_engine), open(MANIFEST_in).readlines())]
+
+ for file in files:
+ src = find(file)
+ dst = os.path.join(bootstrap_dir, file)
+ if must_copy(dst, src):
+ dir = os.path.split(dst)[0]
+ if not os.path.isdir(dir):
+ os.makedirs(dir)
+ try: os.unlink(dst)
+ except: pass
+ open(dst, 'wb').write( open(src, 'rb').read() )
+
+ if update_only:
+ sys.exit(0)
+
+ args = [
+ sys.executable,
+ os.path.join(bootstrap_dir, scons_py)
+ ] + pass_through_args
+
+ sys.stdout.write(" ".join(args) + '\n')
+ sys.stdout.flush()
+
+ os.environ['SCONS_LIB_DIR'] = os.path.join(bootstrap_dir, src_engine)
+
+ sys.exit(subprocess.Popen(args, env=os.environ).wait())
+
+if __name__ == "__main__":
+ main()
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: