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proc/7574/cwd/lib64/python2.7/site-packages/gtk-2.0/_[ Not.Writable ]

File://proc/7574/cwd/lib64/python2.7/site-packages/gtk-2.0/dsextras.py

# -*- coding: utf-8 -*-
#
# dsextras.py - Extra classes and utilities for distutils,
#               adding pkg-config support


import os
import sys
import fnmatch
import re
import string

from distutils import dep_util
from distutils.command.build_ext import build_ext
from distutils.command.install_lib import install_lib
from distutils.command.install_data import install_data
from distutils.extension import Extension
from distutils.spawn import find_executable

try:
    import codegen.createdefs
    from codegen.override import Overrides
    from codegen.defsparser import DefsParser
    from codegen.codegen import register_types, SourceWriter, FileOutput
except ImportError:
    template_classes_enabled = False
else:
    template_classes_enabled = True


GLOBAL_INC = []
GLOBAL_MACROS = []

codegen_error_message='''
***************************************************************************
Codegen could not be found on your system and is required by the
dsextras.Template and dsextras.TemplateExtension classes.
***************************************************************************
'''


def get_m4_define(varname):
    '''Return the value of a m4_define variable as set in configure.in.'''
    pattern = re.compile('m4_define\(' + varname + '\,\s*(.+)\)')

    if os.path.exists('configure.ac'):
        fname = 'configure.ac'
    elif os.path.exists('configure.in'):
        fname = 'configure.in'
    else:
        raise SystemExit('ERROR: Could not find configure file')

    for line in open(fname).readlines():
        match_obj = pattern.match(line)

        if match_obj:
            return match_obj.group(1)

    return None

def getoutput(cmd):
    '''Return output (stdout or stderr) of executing cmd in a shell.'''
    return getstatusoutput(cmd)[1]

def getstatusoutput(cmd):
    '''Return (status, output) of executing cmd in a shell.'''
    if sys.platform == 'win32':
        pipe = os.popen(cmd, 'r')
        text = pipe.read()
        sts = pipe.close() or 0

        while text[-1:] in ['\n', '\r']:
            text = text[:-1]

        return sts, text
    else:
        from commands import getstatusoutput
        return getstatusoutput(cmd)

def have_gcc():
    '''Checks for the existence of gcc'''
    if find_executable('gcc'):
        return True

def have_pkgconfig():
    '''Checks for the existence of pkg-config'''
    if find_executable('pkg-config'):
        return True

def list_files(dir):
    '''List all files in a dir, with filename match support:
    for example: glade/*.glade will return all files in the glade directory
    that matches *.glade. It also looks up the full path'''
    if dir.find(os.sep) != -1:
        parts = dir.split(os.sep)
        dir = string.join(parts[:-1], os.sep)
        pattern = parts[-1]
    else:
        pattern = dir
        dir = '.'

    dir = os.path.abspath(dir)
    retval = []

    for file in os.listdir(dir):
        if fnmatch.fnmatch(file, pattern):
            retval.append(os.path.join(dir, file))

    return retval

def pkgc_version_check(name, req_version):
    '''Check the existence and version number of a package:
    returns False if not installed or too old, True otherwise.'''
    is_installed = not os.system('pkg-config --exists %s' % name)

    if not is_installed:
        return False

    orig_version = pkgc_get_version(name)
    version = map(int, orig_version.split('.'))
    pkc_version = map(int, req_version.split('.'))

    if version >= pkc_version:
        return True

    return False

def pkgc_get_version(name):
    '''return the version as return by pkg-config --modversion'''
    return getoutput('pkg-config --modversion %s' % name)

def pkgc_get_libraries(name):
    '''returns a list of libraries as returned by pkg-config --libs-only-l'''
    output = getoutput('pkg-config --libs-only-l %s' % name)
    return output.replace('-l', '').split()

def pkgc_get_library_dirs(name):
    '''returns a list of library dirs as returned by pkg-config --libs-only-L'''
    output = getoutput('pkg-config --libs-only-L %s' % name)
    return output.replace('-L', '').split()

def pkgc_get_include_dirs(name):
    '''returns a list of include dirs as returned by pkg-config --cflags-only-I'''
    output = getoutput('pkg-config --cflags-only-I %s' % name)
    return output.replace('-I', '').split()

def pkgc_get_defs_dir(name):
    '''returns the defs dir as returned by pkg-config --variable=defsdir'''
    output = getoutput('pkg-config --variable=defsdir %s' % name)
    return output


class BuildExt(build_ext):
    def init_extra_compile_args(self):
        self.extra_compile_args = []

        if sys.platform == 'win32' and self.compiler.compiler_type == 'mingw32':
            if not have_gcc():
                raise SystemExit('ERROR: Could not find gcc.')

            # MSVC compatible struct packing is required.
            # Note gcc2 uses -fnative-struct while gcc3
            # and gcc4 use -mms-bitfields. Based on the
            # version the proper flag is used below.
            msnative_struct = {'2': '-fnative-struct',
                               '3': '-mms-bitfields',
                               '4': '-mms-bitfields'}
            gcc_version = getoutput('gcc -dumpversion')

            print ('using MinGW GCC version %s with %s option' % \
                  (gcc_version, msnative_struct[gcc_version[0]]))

            self.extra_compile_args.append(msnative_struct[gcc_version[0]])

    def modify_compiler(self):
        if sys.platform == 'win32' and self.compiler.compiler_type == 'mingw32':
            if not have_gcc():
                raise SystemExit('ERROR: Could not find gcc.')

            # Remove '-static' linker option to prevent MinGW ld
            # from trying to link with MSVC import libraries.
            if self.compiler.linker_so.count('-static'):
                self.compiler.linker_so.remove('-static')

    def build_extensions(self):
        # Init self.extra_compile_args
        self.init_extra_compile_args()
        # Modify default compiler settings
        self.modify_compiler()
        # Invoke base build_extensions()
        build_ext.build_extensions(self)

    def build_extension(self, ext):
        # Add self.extra_compile_args to ext.extra_compile_args
        ext.extra_compile_args += self.extra_compile_args

        # Generate eventual templates before building
        if hasattr(ext, 'generate'):
            ext.generate()

        # Filter out 'c' and 'm' libs when compilic w/ msvc
        if sys.platform == 'win32' and self.compiler.compiler_type == 'msvc':
            save_libs = ext.libraries
            ext.libraries = [lib for lib in ext.libraries
                             if lib not in ['c', 'm']]
        else:
            save_libs = ext.libraries

        # Invoke base build_extension()
        build_ext.build_extension(self, ext)

        if save_libs is not None and save_libs != ext.libraries:
            ext.libraries = save_libs


class InstallLib(install_lib):
    local_outputs = []
    local_inputs = []

    def set_install_dir(self, install_dir):
        self.install_dir = install_dir

    def get_outputs(self):
        return install_lib.get_outputs(self) + self.local_outputs

    def get_inputs(self):
        return install_lib.get_inputs(self) + self.local_inputs


class InstallData(install_data):
    local_outputs = []
    local_inputs = []
    template_options = {}

    def prepare(self):
        if os.name == 'nt':
            self.prefix = os.sep.join(self.install_dir.split(os.sep)[:-3])
        else:
            # default: os.name == 'posix'
            self.prefix = os.sep.join(self.install_dir.split(os.sep)[:-4])

        self.exec_prefix = '${prefix}/bin'
        self.includedir = '${prefix}/include'
        self.libdir = '${prefix}/lib'
        self.datarootdir = '${prefix}/share'
        self.datadir = '${prefix}/share'

        self.add_template_option('prefix', self.prefix)
        self.add_template_option('exec_prefix', self.exec_prefix)
        self.add_template_option('includedir', self.includedir)
        self.add_template_option('libdir', self.libdir)
        self.add_template_option('datarootdir', self.datarootdir)
        self.add_template_option('datadir', self.datadir)
        self.add_template_option('PYTHON', sys.executable)
        self.add_template_option('THREADING_CFLAGS', '')

    def set_install_dir(self, install_dir):
        self.install_dir = install_dir

    def add_template_option(self, name, value):
        self.template_options['@%s@' % name] = value

    def install_template(self, filename, install_dir):
        '''Install template filename into target directory install_dir.'''
        output_file = os.path.split(filename)[-1][:-3]

        template = open(filename).read()

        for key, value in self.template_options.items():
            template = template.replace(key, value)

        output = os.path.join(install_dir, output_file)
        self.mkpath(install_dir)
        open(output, 'wb').write(template)
        self.local_inputs.append(filename)
        self.local_outputs.append(output)
        return output

    def get_outputs(self):
        return install_data.get_outputs(self) + self.local_outputs

    def get_inputs(self):
        return install_data.get_inputs(self) + self.local_inputs


class PkgConfigExtension(Extension):
    # Name of pygobject package extension depends on, can be None
    pygobject_pkc = 'pygobject-2.0'
    can_build_ok = None

    def __init__(self, **kwargs):
        name = kwargs['pkc_name']

        if 'include_dirs' in kwargs:
            kwargs['include_dirs'] += self.get_include_dirs(name) + GLOBAL_INC
        else:
            kwargs['include_dirs'] = self.get_include_dirs(name) + GLOBAL_INC

        kwargs['define_macros'] = GLOBAL_MACROS

        if 'libraries' in kwargs:
            kwargs['libraries'] += self.get_libraries(name)
        else:
            kwargs['libraries'] = self.get_libraries(name)

        if 'library_dirs' in kwargs:
            kwargs['library_dirs'] += self.get_library_dirs(name)
        else:
            kwargs['library_dirs'] = self.get_library_dirs(name)

        if 'pygobject_pkc' in kwargs:
            self.pygobject_pkc = kwargs.pop('pygobject_pkc')

        if self.pygobject_pkc:
            kwargs['include_dirs'] += self.get_include_dirs(self.pygobject_pkc)
            kwargs['libraries'] += self.get_libraries(self.pygobject_pkc)
            kwargs['library_dirs'] += self.get_library_dirs(self.pygobject_pkc)

        self.name = kwargs['name']
        self.pkc_name = kwargs['pkc_name']
        self.pkc_version = kwargs['pkc_version']
        del kwargs['pkc_name'], kwargs['pkc_version']
        Extension.__init__(self, **kwargs)

    def get_include_dirs(self, names):
        if type(names) != tuple:
            names = (names,)

        retval = []

        for name in names:
            retval.extend(pkgc_get_include_dirs(name))

        return retval

    def get_libraries(self, names):
        if type(names) != tuple:
            names = (names,)

        retval = []

        for name in names:
            retval.extend(pkgc_get_libraries(name))

        return retval

    def get_library_dirs(self, names):
        if type(names) != tuple:
            names = (names,)

        retval = []

        for name in names:
            retval.extend(pkgc_get_library_dirs(name))

        return retval

    def can_build(self):
        '''If the pkg-config version found is good enough'''
        if self.can_build_ok is not None:
            return self.can_build_ok

        if type(self.pkc_name) != tuple:
            reqs = [(self.pkc_name, self.pkc_version)]
        else:
            reqs = zip(self.pkc_name, self.pkc_version)

        for package, version in reqs:
            retval = os.system('pkg-config --exists %s' % package)

            if retval:
                print ('* %s.pc could not be found, bindings for %s'
                       ' will not be built.' % (package, self.name))
                self.can_build_ok = False
                return False

            orig_version = pkgc_get_version(package)

            if (map(int, orig_version.split('.')) >=
                map(int, version.split('.'))):

                self.can_build_ok = True
                return True
            else:
                print ('Warning: Too old version of %s' % package)
                print ('         Need %s, but %s is installed' % (version, orig_version))
                self.can_build_ok = False
                return False

    def generate(self):
        pass


class Template(object):
    def __new__(cls, *args, **kwds):
        # The Template and TemplateExtension classes require codegen
        if not template_classes_enabled:
            raise NameError('\'%s\' is not defined\n%s' % (cls.__name__,
                                                           codegen_error_message))

        return object.__new__(cls)

    def __init__(self, override, output, defs, prefix,
                 register=[], load_types=None, py_ssize_t_clean=False):

        self.override = override
        self.output = output
        self.prefix = prefix
        self.load_types = load_types
        self.py_ssize_t_clean = py_ssize_t_clean

        self.built_defs=[]

        if isinstance(defs, tuple):
            self.defs=defs[0]
            self.built_defs.append(defs)
        else:
            self.defs=defs

        self.register=[]

        for r in register:
            if isinstance(r, tuple):
                self.register.append(r[0])
                self.built_defs.append(r)
            else:
                self.register.append(r)

    def check_dates(self):
        # Return True if files are up-to-date
        files=self.register[:]
        files.append(self.override)
        files.append(self.defs)

        return not dep_util.newer_group(files, self.output)

    def generate_defs(self):
        for (target, sources) in self.built_defs:
            if dep_util.newer_group(sources, target):
                # createdefs is mostly called from the CLI !
                args=['dummy', target] + sources
                codegen.createdefs.main(args)

    def generate(self):
        # Generate defs files if necessary
        self.generate_defs()

        # ... then check the file timestamps
        if self.check_dates():
            return

        for item in self.register:
            dp = DefsParser(item, dict(GLOBAL_MACROS))
            dp.startParsing()
            register_types(dp)

        if self.load_types:
            globals = {}
            execfile(self.load_types, globals)

        dp = DefsParser(self.defs, dict(GLOBAL_MACROS))
        dp.startParsing()
        register_types(dp)

        fd = open(self.output, 'w')
        sw = SourceWriter(dp, Overrides(self.override), self.prefix,
                          FileOutput(fd, self.output))
        sw.write(self.py_ssize_t_clean)
        fd.close()


class TemplateExtension(PkgConfigExtension):
    def __new__(cls,*args, **kwds):
        if not template_classes_enabled:
            raise NameError('\'%s\' is not defined\n%s' % (cls.__name__,
                                                           codegen_error_message))

        return PkgConfigExtension.__new__(cls,*args, **kwds)

    def __init__(self, **kwargs):
        name = kwargs['name']
        defs = kwargs['defs']

        if isinstance(defs, tuple):
            output = defs[0][:-5] + '.c'
        else:
            output = defs[:-5] + '.c'

        override = kwargs['override']
        load_types = kwargs.get('load_types')
        py_ssize_t_clean = kwargs.pop('py_ssize_t_clean', False)
        self.templates = []
        self.templates.append(Template(override, output, defs, 'py' + name,
                                       kwargs['register'], load_types,
                                       py_ssize_t_clean))

        del kwargs['register'], kwargs['override'], kwargs['defs']

        if load_types:
            del kwargs['load_types']

        if kwargs.has_key('output'):
            kwargs['name'] = kwargs['output']
            del kwargs['output']

        PkgConfigExtension.__init__(self, **kwargs)

    def generate(self):
        map(lambda x: x.generate(), self.templates)

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