setup.py

#!/usr/bin/python

# Copyright 2014 Aaron O'Mullan <aaron.omullan@friendco.de>
# Copyright 2013 Jace Browning <jacebrowning@gmail.com>
#
# This program is free software; you can redistribute it and/or
# modify it only under the terms of the GNU GPLv2 and/or the Apache
# License, Version 2.0.  See the COPYING file for further details.

"""
Setup script for Gittle.
"""

import platform
windows = platform.system() == 'Windows'
try:
    from setuptools import setup
except ImportError:
    has_setuptools = False
    from distutils.core import setup
else:
    has_setuptools = True

version_string = '0.5.0'

setup_kwargs = {
    'name': 'gittle',
    'description': 'A high level pure python git implementation',
    'keywords': 'git dulwich pure python gittle',
    'version': version_string,
    'url': 'https://github.com/FriendCode/gittle',
    'license': 'MIT',
    'author': "Aaron O'Mullan",
    'author_email': 'aaron@friendco.de',
    'long_description': """
    Gittle is a wrapper around dulwich. It provides an easy and familiar interface to git.
    It's pure python (no dependency on the ``git`` binary) and has no other dependencies besides
    the python stdlib, dulwich and paramiko (optional).
    """,
    'packages': ['gittle', 'gittle.utils'],
    'install_requires': [
    # PyPI
    'paramiko>=1.10.0',
    'pycrypto==2.6',
    'dulwich>=0.9.7',
    'funky>=0.0.2',
    ],
}


try:

    # Run setup with C extensions
    setup(**setup_kwargs)

except SystemExit as exc:

    import logging
    logging.exception(exc)
    logging.info("retrying installation without VisualStudio...")

    # Remove C dependencies
    install_requires = [r for r in setup_kwargs['install_requires']
                        if r.split('=')[0] not in ('paramiko', 'pycrypto')]

    # Install dulwich as pure Python
    if windows and has_setuptools:
        from setuptools.command.easy_install import easy_install
        run_setup = easy_install.run_setup

        def _run_setup(self, setup_script, setup_base, args):
            """Alternate run_setup function to pass '--pure' to the
            Dulwich installer on Windows.
            """
            if 'dulwich' in setup_script:
                args.insert(0, '--pure')
            run_setup(self, setup_script, setup_base, args)

        easy_install.run_setup = _run_setup

    # Run setup without C extensions
    setup_kwargs['install_requires'] = install_requires
    setup(**setup_kwargs)