##############################################################################
#
# Copyright (c) 2006 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
# This package is developed by the Zope Toolkit project, documented here:
# http://docs.zope.org/zopetoolkit
# When developing and releasing this package, please follow the documented
# Zope Toolkit policies as described by this documentation.
##############################################################################
"""Setup for zope.i18nmessageid package
"""

import os
import sys

from setuptools import setup, find_packages, Extension, Feature
from distutils.command.build_ext import build_ext
from distutils.errors import CCompilerError
from distutils.errors import DistutilsExecError
from distutils.errors import DistutilsPlatformError
import platform

py_impl = getattr(platform, 'python_implementation', lambda: None)
is_pypy = py_impl() == 'PyPy'
is_jython = 'java' in sys.platform

codeoptimization_c = os.path.join('src', 'zope', 'i18nmessageid',
                                  "_zope_i18nmessageid_message.c")
codeoptimization = Feature(
    "Optional code optimizations",
    standard = True,
    ext_modules = [Extension(
        "zope.i18nmessageid._zope_i18nmessageid_message",
        [os.path.normcase(codeoptimization_c)]
        )])

extra = {
    'extras_require': {'testing': ['nose', 'coverage'],
                       'docs': ['Sphinx'],
                      },
}

if not is_pypy and not is_jython:
    # Jython cannot build the C optimizations, while on PyPy they are
    # anti-optimizations (the C extension compatibility layer is known-slow,
    # and defeats JIT opportunities).
    extra['features'] = {'codeoptimization':codeoptimization}

def read(*rnames):
    return open(os.path.join(os.path.dirname(__file__), *rnames)).read()

class optional_build_ext(build_ext):
    """This class subclasses build_ext and allows
       the building of C extensions to fail.
    """
    def run(self):
        try:
            build_ext.run(self)
        
        except DistutilsPlatformError:
            # The sys.exc_info()[1] is to preserve compatibility with both
            # Python 2.5 and 3.x, which is needed in setup.py.
            self._unavailable(sys.exc_info()[1])

    def build_extension(self, ext):
        try:
            build_ext.build_extension(self, ext)
        
        except (CCompilerError, DistutilsExecError):
            # The sys.exc_info()[1] is to preserve compatibility with both
            # Python 2.5 and 3.x, which is needed in setup.py.
            self._unavailable(sys.exc_info()[1])

    def _unavailable(self, e):
        # Write directly to stderr to preserve compatibility with both
        # Python 2.5 and 3.x, which is needed in setup.py.
        sys.stderr.write('*' * 80 + '\n')
        sys.stderr.write("""WARNING:

        An optional code optimization (C extension) could not be compiled.

        Optimizations for this package will not be available!
        
        """)
        sys.stderr.write(str(e) + '\n')
        sys.stderr.write('*' * 80 + '\n')

setup(name='zope.i18nmessageid',
    version = '4.0.3',
    author='Zope Foundation and Contributors',
    author_email='zope-dev@zope.org',
    description='Message Identifiers for internationalization',
    long_description=(
        read('README.rst')
        + '\n\n' +
        read('CHANGES.rst')
        ),
    keywords = "zope i18n message factory",
    classifiers = [
        'Development Status :: 5 - Production/Stable',
        'Environment :: Web Environment',
        'Intended Audience :: Developers',
        'License :: OSI Approved :: Zope Public License',
        'Programming Language :: Python',
        'Programming Language :: Python :: 2',
        'Programming Language :: Python :: 2.6',
        'Programming Language :: Python :: 2.7',
        'Programming Language :: Python :: 3',
        'Programming Language :: Python :: 3.2',
        'Programming Language :: Python :: 3.3',
        'Programming Language :: Python :: 3.4',
        "Programming Language :: Python :: Implementation :: CPython",
        "Programming Language :: Python :: Implementation :: PyPy",
        'Natural Language :: English',
        'Operating System :: OS Independent',
        'Topic :: Internet :: WWW/HTTP',
        'Framework :: Zope3'],
    license='ZPL 2.1',
    url='http://pypi.python.org/pypi/zope.i18nmessageid',
    packages=find_packages('src'),
    package_dir = {'': 'src'},
    namespace_packages=['zope',],
    install_requires=['setuptools'],
    include_package_data = True,
    test_suite='zope.i18nmessageid.tests.test_suite',
    zip_safe = False,
    cmdclass = {'build_ext':optional_build_ext},
    **extra
)

