Added an unmodified copy of SCons to third_party.

scons-2.0.1/engine/SCons/Platform/win32.py

+"""SCons.Platform.win32
+
+Platform-specific initialization for Win32 systems.
+
+There normally shouldn't be any need to import this module directly.  It
+will usually be imported through the generic SCons.Platform.Platform()
+selection method.
+"""
+
+#
+# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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.
+#
+
+__revision__ = "src/engine/SCons/Platform/win32.py 5134 2010/08/16 23:02:40 bdeegan"
+
+import os
+import os.path
+import sys
+import tempfile
+
+from SCons.Platform.posix import exitvalmap
+from SCons.Platform import TempFileMunge
+import SCons.Util
+
+try:
+    import msvcrt
+    import win32api
+    import win32con
+
+    msvcrt.get_osfhandle
+    win32api.SetHandleInformation
+    win32con.HANDLE_FLAG_INHERIT
+except ImportError:
+    parallel_msg = \
+        "you do not seem to have the pywin32 extensions installed;\n" + \
+        "\tparallel (-j) builds may not work reliably with open Python files."
+except AttributeError:
+    parallel_msg = \
+        "your pywin32 extensions do not support file handle operations;\n" + \
+        "\tparallel (-j) builds may not work reliably with open Python files."
+else:
+    parallel_msg = None
+
+    import builtins
+
+    _builtin_file = builtins.file
+    _builtin_open = builtins.open
+    
+    def _scons_file(*args, **kw):
+        fp = _builtin_file(*args, **kw)
+        win32api.SetHandleInformation(msvcrt.get_osfhandle(fp.fileno()),
+                                      win32con.HANDLE_FLAG_INHERIT,
+                                      0)
+        return fp
+
+    def _scons_open(*args, **kw):
+        fp = _builtin_open(*args, **kw)
+        win32api.SetHandleInformation(msvcrt.get_osfhandle(fp.fileno()),
+                                      win32con.HANDLE_FLAG_INHERIT,
+                                      0)
+        return fp
+
+    builtins.file = _scons_file
+    builtins.open = _scons_open
+
+
+
+# The upshot of all this is that, if you are using Python 1.5.2,
+# you had better have cmd or command.com in your PATH when you run
+# scons.
+
+def piped_spawn(sh, escape, cmd, args, env, stdout, stderr):
+    # There is no direct way to do that in python. What we do
+    # here should work for most cases:
+    #   In case stdout (stderr) is not redirected to a file,
+    #   we redirect it into a temporary file tmpFileStdout
+    #   (tmpFileStderr) and copy the contents of this file
+    #   to stdout (stderr) given in the argument
+    if not sh:
+        sys.stderr.write("scons: Could not find command interpreter, is it in your PATH?\n")
+        return 127
+    else:
+        # one temporary file for stdout and stderr
+        tmpFileStdout = os.path.normpath(tempfile.mktemp())
+        tmpFileStderr = os.path.normpath(tempfile.mktemp())
+
+        # check if output is redirected
+        stdoutRedirected = 0
+        stderrRedirected = 0
+        for arg in args:
+            # are there more possibilities to redirect stdout ?
+            if (arg.find( ">", 0, 1 ) != -1 or
+                arg.find( "1>", 0, 2 ) != -1):
+                stdoutRedirected = 1
+            # are there more possibilities to redirect stderr ?
+            if arg.find( "2>", 0, 2 ) != -1:
+                stderrRedirected = 1
+
+        # redirect output of non-redirected streams to our tempfiles
+        if stdoutRedirected == 0:
+            args.append(">" + str(tmpFileStdout))
+        if stderrRedirected == 0:
+            args.append("2>" + str(tmpFileStderr))
+
+        # actually do the spawn
+        try:
+            args = [sh, '/C', escape(' '.join(args)) ]
+            ret = os.spawnve(os.P_WAIT, sh, args, env)
+        except OSError, e:
+            # catch any error
+            try:
+                ret = exitvalmap[e[0]]
+            except KeyError:
+                sys.stderr.write("scons: unknown OSError exception code %d - %s: %s\n" % (e[0], cmd, e[1]))
+            if stderr is not None:
+                stderr.write("scons: %s: %s\n" % (cmd, e[1]))
+        # copy child output from tempfiles to our streams
+        # and do clean up stuff
+        if stdout is not None and stdoutRedirected == 0:
+            try:
+                stdout.write(open( tmpFileStdout, "r" ).read())
+                os.remove( tmpFileStdout )
+            except (IOError, OSError):
+                pass
+
+        if stderr is not None and stderrRedirected == 0:
+            try:
+                stderr.write(open( tmpFileStderr, "r" ).read())
+                os.remove( tmpFileStderr )
+            except (IOError, OSError):
+                pass
+        return ret
+
+def exec_spawn(l, env):
+    try:
+        result = os.spawnve(os.P_WAIT, l[0], l, env)
+    except OSError, e:
+        try:
+            result = exitvalmap[e[0]]
+            sys.stderr.write("scons: %s: %s\n" % (l[0], e[1]))
+        except KeyError:
+            result = 127
+            if len(l) > 2:
+                if len(l[2]) < 1000:
+                    command = ' '.join(l[0:3])
+                else:
+                    command = l[0]
+            else:
+                command = l[0]
+            sys.stderr.write("scons: unknown OSError exception code %d - '%s': %s\n" % (e[0], command, e[1]))
+    return result
+
+def spawn(sh, escape, cmd, args, env):
+    if not sh:
+        sys.stderr.write("scons: Could not find command interpreter, is it in your PATH?\n")
+        return 127
+    return exec_spawn([sh, '/C', escape(' '.join(args))], env)
+
+# Windows does not allow special characters in file names anyway, so no
+# need for a complex escape function, we will just quote the arg, except
+# that "cmd /c" requires that if an argument ends with a backslash it
+# needs to be escaped so as not to interfere with closing double quote
+# that we add.
+def escape(x):
+    if x[-1] == '\\':
+        x = x + '\\'
+    return '"' + x + '"'
+
+# Get the windows system directory name
+_system_root = None
+
+def get_system_root():
+    global _system_root
+    if _system_root is not None:
+        return _system_root
+
+    # A resonable default if we can't read the registry
+    val = os.environ.get('SystemRoot', "C:\\WINDOWS")
+
+    if SCons.Util.can_read_reg:
+        try:
+            # Look for Windows NT system root
+            k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
+                                      'Software\\Microsoft\\Windows NT\\CurrentVersion')
+            val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
+        except SCons.Util.RegError:
+            try:
+                # Okay, try the Windows 9x system root
+                k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
+                                          'Software\\Microsoft\\Windows\\CurrentVersion')
+                val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
+            except KeyboardInterrupt:
+                raise
+            except:
+                pass
+    _system_root = val
+    return val
+
+# Get the location of the program files directory
+def get_program_files_dir():
+    # Now see if we can look in the registry...
+    val = ''
+    if SCons.Util.can_read_reg:
+        try:
+            # Look for Windows Program Files directory
+            k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
+                                      'Software\\Microsoft\\Windows\\CurrentVersion')
+            val, tok = SCons.Util.RegQueryValueEx(k, 'ProgramFilesDir')
+        except SCons.Util.RegError:
+            val = ''
+            pass
+
+    if val == '':
+        # A reasonable default if we can't read the registry
+        # (Actually, it's pretty reasonable even if we can :-)
+        val = os.path.join(os.path.dirname(get_system_root()),"Program Files")
+        
+    return val
+
+
+
+# Determine which windows CPU were running on.
+class ArchDefinition(object):
+    """
+    A class for defining architecture-specific settings and logic.
+    """
+    def __init__(self, arch, synonyms=[]):
+        self.arch = arch
+        self.synonyms = synonyms
+
+SupportedArchitectureList = [
+    ArchDefinition(
+        'x86',
+        ['i386', 'i486', 'i586', 'i686'],
+    ),
+
+    ArchDefinition(
+        'x86_64',
+        ['AMD64', 'amd64', 'em64t', 'EM64T', 'x86_64'],
+    ),
+
+    ArchDefinition(
+        'ia64',
+        ['IA64'],
+    ),
+]
+
+SupportedArchitectureMap = {}
+for a in SupportedArchitectureList:
+    SupportedArchitectureMap[a.arch] = a
+    for s in a.synonyms:
+        SupportedArchitectureMap[s] = a
+
+def get_architecture(arch=None):
+    """Returns the definition for the specified architecture string.
+
+    If no string is specified, the system default is returned (as defined
+    by the PROCESSOR_ARCHITEW6432 or PROCESSOR_ARCHITECTURE environment
+    variables).
+    """
+    if arch is None:
+        arch = os.environ.get('PROCESSOR_ARCHITEW6432')
+        if not arch:
+            arch = os.environ.get('PROCESSOR_ARCHITECTURE')
+    return SupportedArchitectureMap.get(arch, ArchDefinition('', ['']))
+
+def generate(env):
+    # Attempt to find cmd.exe (for WinNT/2k/XP) or
+    # command.com for Win9x
+    cmd_interp = ''
+    # First see if we can look in the registry...
+    if SCons.Util.can_read_reg:
+        try:
+            # Look for Windows NT system root
+            k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
+                                          'Software\\Microsoft\\Windows NT\\CurrentVersion')
+            val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
+            cmd_interp = os.path.join(val, 'System32\\cmd.exe')
+        except SCons.Util.RegError:
+            try:
+                # Okay, try the Windows 9x system root
+                k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
+                                              'Software\\Microsoft\\Windows\\CurrentVersion')
+                val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
+                cmd_interp = os.path.join(val, 'command.com')
+            except KeyboardInterrupt:
+                raise
+            except:
+                pass
+
+    # For the special case of not having access to the registry, we
+    # use a temporary path and pathext to attempt to find the command
+    # interpreter.  If we fail, we try to find the interpreter through
+    # the env's PATH.  The problem with that is that it might not
+    # contain an ENV and a PATH.
+    if not cmd_interp:
+        systemroot = get_system_root()
+        tmp_path = systemroot + os.pathsep + \
+                   os.path.join(systemroot,'System32')
+        tmp_pathext = '.com;.exe;.bat;.cmd'
+        if 'PATHEXT' in os.environ:
+            tmp_pathext = os.environ['PATHEXT'] 
+        cmd_interp = SCons.Util.WhereIs('cmd', tmp_path, tmp_pathext)
+        if not cmd_interp:
+            cmd_interp = SCons.Util.WhereIs('command', tmp_path, tmp_pathext)
+
+    if not cmd_interp:
+        cmd_interp = env.Detect('cmd')
+        if not cmd_interp:
+            cmd_interp = env.Detect('command')
+
+    
+    if 'ENV' not in env:
+        env['ENV']        = {}
+
+    # Import things from the external environment to the construction
+    # environment's ENV.  This is a potential slippery slope, because we
+    # *don't* want to make builds dependent on the user's environment by
+    # default.  We're doing this for SystemRoot, though, because it's
+    # needed for anything that uses sockets, and seldom changes, and
+    # for SystemDrive because it's related.
+    #
+    # Weigh the impact carefully before adding other variables to this list.
+    import_env = [ 'SystemDrive', 'SystemRoot', 'TEMP', 'TMP' ]
+    for var in import_env:
+        v = os.environ.get(var)
+        if v:
+            env['ENV'][var] = v
+
+    if 'COMSPEC' not in env['ENV']:
+        v = os.environ.get("COMSPEC")
+        if v:
+            env['ENV']['COMSPEC'] = v
+
+    env.AppendENVPath('PATH', get_system_root() + '\System32')
+
+    env['ENV']['PATHEXT'] = '.COM;.EXE;.BAT;.CMD'
+    env['OBJPREFIX']      = ''
+    env['OBJSUFFIX']      = '.obj'
+    env['SHOBJPREFIX']    = '$OBJPREFIX'
+    env['SHOBJSUFFIX']    = '$OBJSUFFIX'
+    env['PROGPREFIX']     = ''
+    env['PROGSUFFIX']     = '.exe'
+    env['LIBPREFIX']      = ''
+    env['LIBSUFFIX']      = '.lib'
+    env['SHLIBPREFIX']    = ''
+    env['SHLIBSUFFIX']    = '.dll'
+    env['LIBPREFIXES']    = [ '$LIBPREFIX' ]
+    env['LIBSUFFIXES']    = [ '$LIBSUFFIX' ]
+    env['PSPAWN']         = piped_spawn
+    env['SPAWN']          = spawn
+    env['SHELL']          = cmd_interp
+    env['TEMPFILE']       = TempFileMunge
+    env['TEMPFILEPREFIX'] = '@'
+    env['MAXLINELENGTH']  = 2048
+    env['ESCAPE']         = escape
+    
+    env['HOST_OS']        = 'win32'
+    env['HOST_ARCH']      = get_architecture().arch
+    
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: