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325 lines
12 KiB
325 lines
12 KiB
16 years ago
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"""SCons.Platform.win32
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Platform-specific initialization for Win32 systems.
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There normally shouldn't be any need to import this module directly. It
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will usually be imported through the generic SCons.Platform.Platform()
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selection method.
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"""
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#
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# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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__revision__ = "src/engine/SCons/Platform/win32.py 3842 2008/12/20 22:59:52 scons"
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import os
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import os.path
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import string
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import sys
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import tempfile
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from SCons.Platform.posix import exitvalmap
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from SCons.Platform import TempFileMunge
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import SCons.Util
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try:
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import msvcrt
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import win32api
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import win32con
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msvcrt.get_osfhandle
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win32api.SetHandleInformation
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win32con.HANDLE_FLAG_INHERIT
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except ImportError:
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parallel_msg = \
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"you do not seem to have the pywin32 extensions installed;\n" + \
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"\tparallel (-j) builds may not work reliably with open Python files."
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except AttributeError:
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parallel_msg = \
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"your pywin32 extensions do not support file handle operations;\n" + \
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"\tparallel (-j) builds may not work reliably with open Python files."
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else:
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parallel_msg = None
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import __builtin__
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_builtin_file = __builtin__.file
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_builtin_open = __builtin__.open
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def _scons_file(*args, **kw):
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fp = apply(_builtin_file, args, kw)
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win32api.SetHandleInformation(msvcrt.get_osfhandle(fp.fileno()),
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win32con.HANDLE_FLAG_INHERIT,
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0)
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return fp
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def _scons_open(*args, **kw):
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fp = apply(_builtin_open, args, kw)
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win32api.SetHandleInformation(msvcrt.get_osfhandle(fp.fileno()),
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win32con.HANDLE_FLAG_INHERIT,
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0)
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return fp
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__builtin__.file = _scons_file
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__builtin__.open = _scons_open
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# The upshot of all this is that, if you are using Python 1.5.2,
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# you had better have cmd or command.com in your PATH when you run
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# scons.
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def piped_spawn(sh, escape, cmd, args, env, stdout, stderr):
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# There is no direct way to do that in python. What we do
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# here should work for most cases:
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# In case stdout (stderr) is not redirected to a file,
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# we redirect it into a temporary file tmpFileStdout
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# (tmpFileStderr) and copy the contents of this file
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# to stdout (stderr) given in the argument
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if not sh:
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sys.stderr.write("scons: Could not find command interpreter, is it in your PATH?\n")
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return 127
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else:
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# one temporary file for stdout and stderr
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tmpFileStdout = os.path.normpath(tempfile.mktemp())
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tmpFileStderr = os.path.normpath(tempfile.mktemp())
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# check if output is redirected
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stdoutRedirected = 0
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stderrRedirected = 0
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for arg in args:
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# are there more possibilities to redirect stdout ?
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if (string.find( arg, ">", 0, 1 ) != -1 or
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string.find( arg, "1>", 0, 2 ) != -1):
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stdoutRedirected = 1
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# are there more possibilities to redirect stderr ?
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if string.find( arg, "2>", 0, 2 ) != -1:
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stderrRedirected = 1
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# redirect output of non-redirected streams to our tempfiles
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if stdoutRedirected == 0:
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args.append(">" + str(tmpFileStdout))
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if stderrRedirected == 0:
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args.append("2>" + str(tmpFileStderr))
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# actually do the spawn
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try:
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args = [sh, '/C', escape(string.join(args)) ]
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ret = os.spawnve(os.P_WAIT, sh, args, env)
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except OSError, e:
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# catch any error
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try:
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ret = exitvalmap[e[0]]
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except KeyError:
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sys.stderr.write("scons: unknown OSError exception code %d - %s: %s\n" % (e[0], cmd, e[1]))
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if stderr != None:
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stderr.write("scons: %s: %s\n" % (cmd, e[1]))
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# copy child output from tempfiles to our streams
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# and do clean up stuff
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if stdout != None and stdoutRedirected == 0:
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try:
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stdout.write(open( tmpFileStdout, "r" ).read())
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os.remove( tmpFileStdout )
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except (IOError, OSError):
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pass
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if stderr != None and stderrRedirected == 0:
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try:
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stderr.write(open( tmpFileStderr, "r" ).read())
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os.remove( tmpFileStderr )
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except (IOError, OSError):
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pass
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return ret
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def exec_spawn(l, env):
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try:
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result = os.spawnve(os.P_WAIT, l[0], l, env)
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except OSError, e:
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try:
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result = exitvalmap[e[0]]
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sys.stderr.write("scons: %s: %s\n" % (l[0], e[1]))
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except KeyError:
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result = 127
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if len(l) > 2:
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if len(l[2]) < 1000:
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command = string.join(l[0:3])
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else:
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command = l[0]
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else:
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command = l[0]
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sys.stderr.write("scons: unknown OSError exception code %d - '%s': %s\n" % (e[0], command, e[1]))
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return result
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def spawn(sh, escape, cmd, args, env):
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if not sh:
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sys.stderr.write("scons: Could not find command interpreter, is it in your PATH?\n")
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return 127
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return exec_spawn([sh, '/C', escape(string.join(args))], env)
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# Windows does not allow special characters in file names anyway, so no
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# need for a complex escape function, we will just quote the arg, except
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# that "cmd /c" requires that if an argument ends with a backslash it
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# needs to be escaped so as not to interfere with closing double quote
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# that we add.
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def escape(x):
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if x[-1] == '\\':
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x = x + '\\'
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return '"' + x + '"'
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# Get the windows system directory name
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def get_system_root():
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# A resonable default if we can't read the registry
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try:
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val = os.environ['SYSTEMROOT']
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except KeyError:
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val = "C:/WINDOWS"
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pass
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# First see if we can look in the registry...
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if SCons.Util.can_read_reg:
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try:
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# Look for Windows NT system root
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k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
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'Software\\Microsoft\\Windows NT\\CurrentVersion')
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val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
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except SCons.Util.RegError:
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try:
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# Okay, try the Windows 9x system root
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k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
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'Software\\Microsoft\\Windows\\CurrentVersion')
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val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
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except KeyboardInterrupt:
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raise
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except:
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pass
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return val
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# Get the location of the program files directory
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def get_program_files_dir():
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# Now see if we can look in the registry...
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val = ''
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if SCons.Util.can_read_reg:
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try:
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# Look for Windows Program Files directory
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k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
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'Software\\Microsoft\\Windows\\CurrentVersion')
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val, tok = SCons.Util.RegQueryValueEx(k, 'ProgramFilesDir')
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except SCons.Util.RegError:
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val = ''
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pass
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if val == '':
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# A reasonable default if we can't read the registry
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# (Actually, it's pretty reasonable even if we can :-)
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val = os.path.join(os.path.dirname(get_system_root()),"Program Files")
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return val
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def generate(env):
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# Attempt to find cmd.exe (for WinNT/2k/XP) or
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# command.com for Win9x
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cmd_interp = ''
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# First see if we can look in the registry...
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if SCons.Util.can_read_reg:
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try:
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# Look for Windows NT system root
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k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
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'Software\\Microsoft\\Windows NT\\CurrentVersion')
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val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
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cmd_interp = os.path.join(val, 'System32\\cmd.exe')
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except SCons.Util.RegError:
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try:
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# Okay, try the Windows 9x system root
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k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
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'Software\\Microsoft\\Windows\\CurrentVersion')
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val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
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cmd_interp = os.path.join(val, 'command.com')
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except KeyboardInterrupt:
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raise
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except:
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pass
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# For the special case of not having access to the registry, we
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# use a temporary path and pathext to attempt to find the command
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# interpreter. If we fail, we try to find the interpreter through
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# the env's PATH. The problem with that is that it might not
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# contain an ENV and a PATH.
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if not cmd_interp:
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systemroot = r'C:\Windows'
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if os.environ.has_key('SYSTEMROOT'):
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systemroot = os.environ['SYSTEMROOT']
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tmp_path = systemroot + os.pathsep + \
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os.path.join(systemroot,'System32')
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tmp_pathext = '.com;.exe;.bat;.cmd'
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if os.environ.has_key('PATHEXT'):
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tmp_pathext = os.environ['PATHEXT']
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cmd_interp = SCons.Util.WhereIs('cmd', tmp_path, tmp_pathext)
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if not cmd_interp:
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cmd_interp = SCons.Util.WhereIs('command', tmp_path, tmp_pathext)
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if not cmd_interp:
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cmd_interp = env.Detect('cmd')
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if not cmd_interp:
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cmd_interp = env.Detect('command')
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if not env.has_key('ENV'):
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env['ENV'] = {}
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# Import things from the external environment to the construction
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# environment's ENV. This is a potential slippery slope, because we
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# *don't* want to make builds dependent on the user's environment by
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# default. We're doing this for SYSTEMROOT, though, because it's
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# needed for anything that uses sockets, and seldom changes, and
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# for SYSTEMDRIVE because it's related.
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#
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# Weigh the impact carefully before adding other variables to this list.
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import_env = [ 'SYSTEMDRIVE', 'SYSTEMROOT', 'TEMP', 'TMP' ]
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for var in import_env:
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v = os.environ.get(var)
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if v:
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env['ENV'][var] = v
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env['ENV']['PATHEXT'] = '.COM;.EXE;.BAT;.CMD'
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env['OBJPREFIX'] = ''
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env['OBJSUFFIX'] = '.obj'
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env['SHOBJPREFIX'] = '$OBJPREFIX'
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env['SHOBJSUFFIX'] = '$OBJSUFFIX'
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env['PROGPREFIX'] = ''
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env['PROGSUFFIX'] = '.exe'
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env['LIBPREFIX'] = ''
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env['LIBSUFFIX'] = '.lib'
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env['SHLIBPREFIX'] = ''
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env['SHLIBSUFFIX'] = '.dll'
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env['LIBPREFIXES'] = [ '$LIBPREFIX' ]
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env['LIBSUFFIXES'] = [ '$LIBSUFFIX' ]
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env['PSPAWN'] = piped_spawn
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env['SPAWN'] = spawn
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env['SHELL'] = cmd_interp
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env['TEMPFILE'] = TempFileMunge
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env['TEMPFILEPREFIX'] = '@'
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env['MAXLINELENGTH'] = 2048
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env['ESCAPE'] = escape
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