X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=tools%2Fscons-1.2.0%2Fengine%2FSCons%2FPlatform%2F__init__.py;fp=tools%2Fscons-1.2.0%2Fengine%2FSCons%2FPlatform%2F__init__.py;h=12158650bc236bd29ce4bd06f5df8d5bc02c7eb6;hb=84bd150c667e693c7ba6c31819b3f155f53e514a;hp=0000000000000000000000000000000000000000;hpb=4b94735961fc9474411a1ca200c3a00f744ec3f1;p=senf.git diff --git a/tools/scons-1.2.0/engine/SCons/Platform/__init__.py b/tools/scons-1.2.0/engine/SCons/Platform/__init__.py new file mode 100644 index 0000000..1215865 --- /dev/null +++ b/tools/scons-1.2.0/engine/SCons/Platform/__init__.py @@ -0,0 +1,216 @@ +"""SCons.Platform + +SCons platform selection. + +This looks for modules that define a callable object that can modify a +construction environment as appropriate for a given platform. + +Note that we take a more simplistic view of "platform" than Python does. +We're looking for a single string that determines a set of +tool-independent variables with which to initialize a construction +environment. Consequently, we'll examine both sys.platform and os.name +(and anything else that might come in to play) in order to return some +specification which is unique enough for our purposes. + +Note that because this subsysem just *selects* a callable that can +modify a construction environment, it's possible for people to define +their own "platform specification" in an arbitrary callable function. +No one needs to use or tie in to this subsystem in order to roll +their own platform definition. +""" + +# +# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 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/__init__.py 3842 2008/12/20 22:59:52 scons" + +import imp +import os +import string +import sys +import tempfile + +import SCons.Errors +import SCons.Tool + +def platform_default(): + """Return the platform string for our execution environment. + + The returned value should map to one of the SCons/Platform/*.py + files. Since we're architecture independent, though, we don't + care about the machine architecture. + """ + osname = os.name + if osname == 'java': + osname = os._osType + if osname == 'posix': + if sys.platform == 'cygwin': + return 'cygwin' + elif string.find(sys.platform, 'irix') != -1: + return 'irix' + elif string.find(sys.platform, 'sunos') != -1: + return 'sunos' + elif string.find(sys.platform, 'hp-ux') != -1: + return 'hpux' + elif string.find(sys.platform, 'aix') != -1: + return 'aix' + elif string.find(sys.platform, 'darwin') != -1: + return 'darwin' + else: + return 'posix' + elif os.name == 'os2': + return 'os2' + else: + return sys.platform + +def platform_module(name = platform_default()): + """Return the imported module for the platform. + + This looks for a module name that matches the specified argument. + If the name is unspecified, we fetch the appropriate default for + our execution environment. + """ + full_name = 'SCons.Platform.' + name + if not sys.modules.has_key(full_name): + if os.name == 'java': + eval(full_name) + else: + try: + file, path, desc = imp.find_module(name, + sys.modules['SCons.Platform'].__path__) + try: + mod = imp.load_module(full_name, file, path, desc) + finally: + if file: + file.close() + except ImportError: + try: + import zipimport + importer = zipimport.zipimporter( sys.modules['SCons.Platform'].__path__[0] ) + mod = importer.load_module(full_name) + except ImportError: + raise SCons.Errors.UserError, "No platform named '%s'" % name + setattr(SCons.Platform, name, mod) + return sys.modules[full_name] + +def DefaultToolList(platform, env): + """Select a default tool list for the specified platform. + """ + return SCons.Tool.tool_list(platform, env) + +class PlatformSpec: + def __init__(self, name): + self.name = name + + def __str__(self): + return self.name + +class TempFileMunge: + """A callable class. You can set an Environment variable to this, + then call it with a string argument, then it will perform temporary + file substitution on it. This is used to circumvent the long command + line limitation. + + Example usage: + env["TEMPFILE"] = TempFileMunge + env["LINKCOM"] = "${TEMPFILE('$LINK $TARGET $SOURCES')}" + + By default, the name of the temporary file used begins with a + prefix of '@'. This may be configred for other tool chains by + setting '$TEMPFILEPREFIX'. + + env["TEMPFILEPREFIX"] = '-@' # diab compiler + env["TEMPFILEPREFIX"] = '-via' # arm tool chain + """ + def __init__(self, cmd): + self.cmd = cmd + + def __call__(self, target, source, env, for_signature): + if for_signature: + return self.cmd + cmd = env.subst_list(self.cmd, 0, target, source)[0] + try: + maxline = int(env.subst('$MAXLINELENGTH')) + except ValueError: + maxline = 2048 + + if (reduce(lambda x, y: x + len(y), cmd, 0) + len(cmd)) <= maxline: + return self.cmd + + # We do a normpath because mktemp() has what appears to be + # a bug in Windows that will use a forward slash as a path + # delimiter. Windows's link mistakes that for a command line + # switch and barfs. + # + # We use the .lnk suffix for the benefit of the Phar Lap + # linkloc linker, which likes to append an .lnk suffix if + # none is given. + tmp = os.path.normpath(tempfile.mktemp('.lnk')) + native_tmp = SCons.Util.get_native_path(tmp) + + if env['SHELL'] and env['SHELL'] == 'sh': + # The sh shell will try to escape the backslashes in the + # path, so unescape them. + native_tmp = string.replace(native_tmp, '\\', r'\\\\') + # In Cygwin, we want to use rm to delete the temporary + # file, because del does not exist in the sh shell. + rm = env.Detect('rm') or 'del' + else: + # Don't use 'rm' if the shell is not sh, because rm won't + # work with the Windows shells (cmd.exe or command.com) or + # Windows path names. + rm = 'del' + + prefix = env.subst('$TEMPFILEPREFIX') + if not prefix: + prefix = '@' + + args = map(SCons.Subst.quote_spaces, cmd[1:]) + open(tmp, 'w').write(string.join(args, " ") + "\n") + # XXX Using the SCons.Action.print_actions value directly + # like this is bogus, but expedient. This class should + # really be rewritten as an Action that defines the + # __call__() and strfunction() methods and lets the + # normal action-execution logic handle whether or not to + # print/execute the action. The problem, though, is all + # of that is decided before we execute this method as + # part of expanding the $TEMPFILE construction variable. + # Consequently, refactoring this will have to wait until + # we get more flexible with allowing Actions to exist + # independently and get strung together arbitrarily like + # Ant tasks. In the meantime, it's going to be more + # user-friendly to not let obsession with architectural + # purity get in the way of just being helpful, so we'll + # reach into SCons.Action directly. + if SCons.Action.print_actions: + print("Using tempfile "+native_tmp+" for command line:\n"+ + str(cmd[0]) + " " + string.join(args," ")) + return [ cmd[0], prefix + native_tmp + '\n' + rm, native_tmp ] + +def Platform(name = platform_default()): + """Select a canned Platform specification. + """ + module = platform_module(name) + spec = PlatformSpec(name) + spec.__call__ = module.generate + return spec