"""distutils.msvc9compiler

Contains MSVCCompiler, an implementation of the abstract CCompiler class

for the Microsoft Visual Studio 2008.

The module is compatible with VS 2005 and VS 2008. You can find legacy support

for older versions of VS in distutils.msvccompiler.

"""

# Written by Perry Stoll

# hacked by Robin Becker and Thomas Heller to do a better job of

#   finding DevStudio (through the registry)

# ported to VS2005 and VS 2008 by Christian Heimes

__revision__ = "$Id: msvc9compiler.py 67415 2008-11-28 11:03:48Z christian.heimes $"

import os

import subprocess

import sys

from distutils.errors import (DistutilsExecError, DistutilsPlatformError,

    CompileError, LibError, LinkError)

from distutils.ccompiler import (CCompiler, gen_preprocess_options,

    gen_lib_options)

from distutils import log

from distutils.util import get_platform

import _winreg

RegOpenKeyEx = _winreg.OpenKeyEx

RegEnumKey = _winreg.EnumKey

RegEnumValue = _winreg.EnumValue

RegError = _winreg.error

HKEYS = (_winreg.HKEY_USERS,

         _winreg.HKEY_CURRENT_USER,

         _winreg.HKEY_LOCAL_MACHINE,

         _winreg.HKEY_CLASSES_ROOT)

VS_BASE = r"Software\Microsoft\VisualStudio\%0.1f"

WINSDK_BASE = r"Software\Microsoft\Microsoft SDKs\Windows"

NET_BASE = r"Software\Microsoft\.NETFramework"

# A map keyed by get_platform() return values to values accepted by

# 'vcvarsall.bat'.  Note a cross-compile may combine these (eg, 'x86_amd64' is

# the param to cross-compile on x86 targetting amd64.)

PLAT_TO_VCVARS = {

    'win32' : 'x86',

    'win-amd64' : 'amd64',

    'win-ia64' : 'ia64',

}

class Reg:

    """Helper class to read values from the registry

    """

    @classmethod

    def get_value(cls, path, key):

        for base in HKEYS:

            d = cls.read_values(base, path)

            if d and key in d:

                return d[key]

        raise KeyError(key)

    @classmethod

    def read_keys(cls, base, key):

        """Return list of registry keys."""

        try:

            handle = RegOpenKeyEx(base, key)

        except RegError:

            return None

        L = []

        i = 0

        while True:

            try:

                k = RegEnumKey(handle, i)

            except RegError:

                break

            L.append(k)

            i += 1

        return L

    @classmethod

    def read_values(cls, base, key):

        """Return dict of registry keys and values.

        All names are converted to lowercase.

        """

        try:

            handle = RegOpenKeyEx(base, key)

        except RegError:

            return None

        d = {}

        i = 0

        while True:

            try:

                name, value, type = RegEnumValue(handle, i)

            except RegError:

                break

            name = name.lower()

            d[cls.convert_mbcs(name)] = cls.convert_mbcs(value)

            i += 1

        return d

    @staticmethod

    def convert_mbcs(s):

        dec = getattr(s, "decode", None)

        if dec is not None:

            try:

                s = dec("mbcs")

            except UnicodeError:

                pass

        return s

class MacroExpander:

    def __init__(self, version):

        self.macros = {}

        self.vsbase = VS_BASE % version

        self.load_macros(version)

    def set_macro(self, macro, path, key):

        self.macros["$(%s)" % macro] = Reg.get_value(path, key)

    def load_macros(self, version):

        self.set_macro("VCInstallDir", self.vsbase + r"\Setup\VC", "productdir")

        self.set_macro("VSInstallDir", self.vsbase + r"\Setup\VS", "productdir")

        self.set_macro("FrameworkDir", NET_BASE, "installroot")

        try:

            if version >= 8.0:

                self.set_macro("FrameworkSDKDir", NET_BASE,

                               "sdkinstallrootv2.0")

            else:

                raise KeyError("sdkinstallrootv2.0")

        except KeyError as exc: #

            raise DistutilsPlatformError(

            """Python was built with Visual Studio 2008;

extensions must be built with a compiler than can generate compatible binaries.

Visual Studio 2008 was not found on this system. If you have Cygwin installed,

you can try compiling with MingW32, by passing "-c mingw32" to setup.py.""")

        if version >= 9.0:

            self.set_macro("FrameworkVersion", self.vsbase, "clr version")

            self.set_macro("WindowsSdkDir", WINSDK_BASE, "currentinstallfolder")

        else:

            p = r"Software\Microsoft\NET Framework Setup\Product"

            for base in HKEYS:

                try:

                    h = RegOpenKeyEx(base, p)

                except RegError:

                    continue

                key = RegEnumKey(h, 0)

                d = Reg.get_value(base, r"%s\%s" % (p, key))

                self.macros["$(FrameworkVersion)"] = d["version"]

    def sub(self, s):

        for k, v in self.macros.items():

            s = s.replace(k, v)

        return s

def get_build_version():

    """Return the version of MSVC that was used to build Python.

    For Python 2.3 and up, the version number is included in

    sys.version.  For earlier versions, assume the compiler is MSVC 6.

    """

    prefix = "MSC v."

    i = sys.version.find(prefix)

    if i == -1:

        return 6

    i = i + len(prefix)

    s, rest = sys.version[i:].split(" ", 1)

    majorVersion = int(s[:-2]) - 6

    minorVersion = int(s[2:3]) / 10.0

    # I don't think paths are affected by minor version in version 6

    if majorVersion == 6:

        minorVersion = 0

    if majorVersion >= 6:

        return majorVersion + minorVersion

    # else we don't know what version of the compiler this is

    return None

def normalize_and_reduce_paths(paths):

    """Return a list of normalized paths with duplicates removed.

    The current order of paths is maintained.

    """

    # Paths are normalized so things like:  /a and /a/ aren't both preserved.

    reduced_paths = []

    for p in paths:

        np = os.path.normpath(p)

        # XXX(nnorwitz): O(n**2), if reduced_paths gets long perhaps use a set.

        if np not in reduced_paths:

            reduced_paths.append(np)

    return reduced_paths

def removeDuplicates(variable):

    """Remove duplicate values of an environment variable.

    """

    oldList = variable.split(os.pathsep)

    newList = []

    for i in oldList:

        if i not in newList:

            newList.append(i)

    newVariable = os.pathsep.join(newList)

    return newVariable

def find_vcvarsall(version):

    """Find the vcvarsall.bat file

    At first it tries to find the productdir of VS 2008 in the registry. If

    that fails it falls back to the VS90COMNTOOLS env var.

    """

    vsbase = VS_BASE % version

    try:

        productdir = Reg.get_value(r"%s\Setup\VC" % vsbase,

                                   "productdir")

    except KeyError:

        log.debug("Unable to find productdir in registry")

        productdir = None

    if not productdir or not os.path.isdir(productdir):

        toolskey = "VS%0.f0COMNTOOLS" % version

        toolsdir = os.environ.get(toolskey, None)

        if toolsdir and os.path.isdir(toolsdir):

            productdir = os.path.join(toolsdir, os.pardir, os.pardir, "VC")

            productdir = os.path.abspath(productdir)

            if not os.path.isdir(productdir):

                log.debug("%s is not a valid directory" % productdir)

                return None

        else:

            log.debug("Env var %s is not set or invalid" % toolskey)

    if not productdir:

        log.debug("No productdir found")

        return None

    vcvarsall = os.path.join(productdir, "vcvarsall.bat")

    if os.path.isfile(vcvarsall):

        return vcvarsall

    log.debug("Unable to find vcvarsall.bat")

    return None

def query_vcvarsall(version, arch="x86"):

    """Launch vcvarsall.bat and read the settings from its environment

    """

    vcvarsall = find_vcvarsall(version)

    interesting = set(("include", "lib", "libpath", "path"))

    result = {}

    if vcvarsall is None:

        raise IOError("Unable to find vcvarsall.bat")

    log.debug("Calling 'vcvarsall.bat %s' (version=%s)", arch, version)

    popen = subprocess.Popen('"%s" %s & set' % (vcvarsall, arch),

                             stdout=subprocess.PIPE,

                             stderr=subprocess.PIPE)

    stdout, stderr = popen.communicate()

    if popen.wait() != 0:

        raise IOError(stderr.decode("mbcs"))

    stdout = stdout.decode("mbcs")

    for line in stdout.split("\n"):

        line = Reg.convert_mbcs(line)

        if '=' not in line:

            continue

        line = line.strip()

        key, value = line.split('=', 1)

        key = key.lower()

        if key in interesting:

            if value.endswith(os.pathsep):

                value = value[:-1]

            result[key] = removeDuplicates(value)

    if len(result) != len(interesting):

        raise ValueError(str(list(result.keys())))

    return result

# More globals

VERSION = get_build_version()

if VERSION < 8.0:

    raise DistutilsPlatformError("VC %0.1f is not supported by this module" % VERSION)

# MACROS = MacroExpander(VERSION)

class MSVCCompiler(CCompiler) :

    """Concrete class that implements an interface to Microsoft Visual C++,

       as defined by the CCompiler abstract class."""

    compiler_type = 'msvc'

    # Just set this so CCompiler's constructor doesn't barf.  We currently

    # don't use the 'set_executables()' bureaucracy provided by CCompiler,

    # as it really isn't necessary for this sort of single-compiler class.

    # Would be nice to have a consistent interface with UnixCCompiler,

    # though, so it's worth thinking about.

    executables = {}

    # Private class data (need to distinguish C from C++ source for compiler)

    _c_extensions = ['.c']

    _cpp_extensions = ['.cc', '.cpp', '.cxx']

    _rc_extensions = ['.rc']

    _mc_extensions = ['.mc']

    # Needed for the filename generation methods provided by the

    # base class, CCompiler.

    src_extensions = (_c_extensions + _cpp_extensions +

                      _rc_extensions + _mc_extensions)

    res_extension = '.res'

    obj_extension = '.obj'

    static_lib_extension = '.lib'

    shared_lib_extension = '.dll'

    static_lib_format = shared_lib_format = '%s%s'

    exe_extension = '.exe'

    def __init__(self, verbose=0, dry_run=0, force=0):

        CCompiler.__init__ (self, verbose, dry_run, force)

        self.__version = VERSION

        self.__root = r"Software\Microsoft\VisualStudio"

        # self.__macros = MACROS

        self.__paths = []

        # target platform (.plat_name is consistent with 'bdist')

        self.plat_name = None

        self.__arch = None # deprecated name

        self.initialized = False

    def initialize(self, plat_name=None):

        # multi-init means we would need to check platform same each time...

        assert not self.initialized, "don't init multiple times"

        if plat_name is None:

            plat_name = get_platform()

        # sanity check for platforms to prevent obscure errors later.

        ok_plats = 'win32', 'win-amd64', 'win-ia64'

        if plat_name not in ok_plats:

            raise DistutilsPlatformError("--plat-name must be one of %s" %

                                         (ok_plats,))

        if "DISTUTILS_USE_SDK" in os.environ and "MSSdk" in os.environ and self.find_exe("cl.exe"):

            # Assume that the SDK set up everything alright; don't try to be

            # smarter

            self.cc = "cl.exe"

            self.linker = "link.exe"

            self.lib = "lib.exe"

            self.rc = "rc.exe"

            self.mc = "mc.exe"

        else:

            # On x86, 'vcvars32.bat amd64' creates an env that doesn't work;

            # to cross compile, you use 'x86_amd64'.

            # On AMD64, 'vcvars32.bat amd64' is a native build env; to cross

            # compile use 'x86' (ie, it runs the x86 compiler directly)

            # No idea how itanium handles this, if at all.

            if plat_name == get_platform() or plat_name == 'win32':

                # native build or cross-compile to win32

                plat_spec = PLAT_TO_VCVARS[plat_name]

            else:

                # cross compile from win32 -> some 64bit

                plat_spec = PLAT_TO_VCVARS[get_platform()] + '_' + \

                            PLAT_TO_VCVARS[plat_name]

            vc_env = query_vcvarsall(VERSION, plat_spec)

            # take care to only use strings in the environment.

            self.__paths = vc_env['path'].encode('mbcs').split(os.pathsep)

            os.environ['lib'] = vc_env['lib'].encode('mbcs')

            os.environ['include'] = vc_env['include'].encode('mbcs')

            if len(self.__paths) == 0:

                raise DistutilsPlatformError("Python was built with %s, "

                       "and extensions need to be built with the same "

                       "version of the compiler, but it isn't installed."

                       % self.__product)

            self.cc = self.find_exe("cl.exe")

            self.linker = self.find_exe("link.exe")

            self.lib = self.find_exe("lib.exe")

            self.rc = self.find_exe("rc.exe")   # resource compiler

            self.mc = self.find_exe("mc.exe")   # message compiler

            #self.set_path_env_var('lib')

            #self.set_path_env_var('include')

        # extend the MSVC path with the current path

        try:

            for p in os.environ['path'].split(';'):

                self.__paths.append(p)

        except KeyError:

            pass

        self.__paths = normalize_and_reduce_paths(self.__paths)

        os.environ['path'] = ";".join(self.__paths)

        self.preprocess_options = None

        if self.__arch == "x86":

            self.compile_options = [ '/nologo', '/Ox', '/MD', '/W3',

                                     '/DNDEBUG']

            self.compile_options_debug = ['/nologo', '/Od', '/MDd', '/W3',

                                          '/Z7', '/D_DEBUG']

        else:

            # Win64

            self.compile_options = [ '/nologo', '/Ox', '/MD', '/W3', '/GS-' ,

                                     '/DNDEBUG']

            self.compile_options_debug = ['/nologo', '/Od', '/MDd', '/W3', '/GS-',

                                          '/Z7', '/D_DEBUG']

        self.ldflags_shared = ['/DLL', '/nologo', '/INCREMENTAL:NO']

        if self.__version >= 7:

            self.ldflags_shared_debug = [

                '/DLL', '/nologo', '/INCREMENTAL:no', '/DEBUG', '/pdb:None'

                ]

        self.ldflags_static = [ '/nologo']

        self.initialized = True

    # -- Worker methods ------------------------------------------------

    def object_filenames(self,

                         source_filenames,

                         strip_dir=0,

                         output_dir=''):

        # Copied from ccompiler.py, extended to return .res as 'object'-file

        # for .rc input file

        if output_dir is None: output_dir = ''

        obj_names = []

        for src_name in source_filenames:

            (base, ext) = os.path.splitext (src_name)

            base = os.path.splitdrive(base)[1] # Chop off the drive

            base = base[os.path.isabs(base):]  # If abs, chop off leading /

            if ext not in self.src_extensions:

                # Better to raise an exception instead of silently continuing

                # and later complain about sources and targets having

                # different lengths

                raise CompileError ("Don't know how to compile %s" % src_name)

            if strip_dir:

                base = os.path.basename (base)

            if ext in self._rc_extensions:

                obj_names.append (os.path.join (output_dir,

                                                base + self.res_extension))

            elif ext in self._mc_extensions:

                obj_names.append (os.path.join (output_dir,

                                                base + self.res_extension))

            else:

                obj_names.append (os.path.join (output_dir,

                                                base + self.obj_extension))

        return obj_names

    def compile(self, sources,

                output_dir=None, macros=None, include_dirs=None, debug=0,

                extra_preargs=None, extra_postargs=None, depends=None):

        if not self.initialized:

            self.initialize()

        compile_info = self._setup_compile(output_dir, macros, include_dirs,

                                           sources, depends, extra_postargs)

        macros, objects, extra_postargs, pp_opts, build = compile_info

        compile_opts = extra_preargs or []

        compile_opts.append ('/c')

        if debug:

            compile_opts.extend(self.compile_options_debug)

        else:

            compile_opts.extend(self.compile_options)

        for obj in objects:

            try:

                src, ext = build[obj]

            except KeyError:

                continue

            if debug:

                # pass the full pathname to MSVC in debug mode,

                # this allows the debugger to find the source file

                # without asking the user to browse for it

                src = os.path.abspath(src)

            if ext in self._c_extensions:

                input_opt = "/Tc" + src

            elif ext in self._cpp_extensions:

                input_opt = "/Tp" + src

            elif ext in self._rc_extensions:

                # compile .RC to .RES file

                input_opt = src

                output_opt = "/fo" + obj

                try:

                    self.spawn([self.rc] + pp_opts +

                               [output_opt] + [input_opt])

                except DistutilsExecError as msg:

                    raise CompileError(msg)

                continue

            elif ext in self._mc_extensions:

                # Compile .MC to .RC file to .RES file.

                #   * '-h dir' specifies the directory for the

                #     generated include file

                #   * '-r dir' specifies the target directory of the

                #     generated RC file and the binary message resource

                #     it includes

                #

                # For now (since there are no options to change this),

                # we use the source-directory for the include file and

                # the build directory for the RC file and message

                # resources. This works at least for win32all.

                h_dir = os.path.dirname(src)

                rc_dir = os.path.dirname(obj)

                try:

                    # first compile .MC to .RC and .H file

                    self.spawn([self.mc] +

                               ['-h', h_dir, '-r', rc_dir] + [src])

                    base, _ = os.path.splitext (os.path.basename (src))

                    rc_file = os.path.join (rc_dir, base + '.rc')

                    # then compile .RC to .RES file

                    self.spawn([self.rc] +

                               ["/fo" + obj] + [rc_file])

                except DistutilsExecError as msg:

                    raise CompileError(msg)

                continue

            else:

                # how to handle this file?

                raise CompileError("Don't know how to compile %s to %s"

                                   % (src, obj))

            output_opt = "/Fo" + obj

            try:

                self.spawn([self.cc] + compile_opts + pp_opts +

                           [input_opt, output_opt] +

                           extra_postargs)

            except DistutilsExecError as msg:

                raise CompileError(msg)

        return objects

    def create_static_lib(self,