#!/usr/bin/python
"""git-cola: The highly caffeinated Git GUI
"""

from __future__ import division, absolute_import, unicode_literals
import os
from os.path import abspath, dirname, join, realpath
import sys


__copyright__ = """
Copyright (C) 2007-2018 David Aguilar and contributors

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

"""


def setup_environment():
    """Provides access to the cola modules"""

    # Try to detect where it is run from and set prefix and the search path.
    # It is assumed that the user installed Cola using the --prefix= option
    python2 = sys.version_info[0] == 2
    prefix = dirname(dirname(realpath(abspath(__file__))))
    # Look for modules in the source or install trees
    if python2:
        cola_mod = join(prefix, str('cola'), str('__init__.py'))
        install_lib = join(prefix, str('share'), str('git-cola'), str('lib'))
    else:
        cola_mod = join(prefix, 'cola', '__init__.py')
        install_lib = join(prefix, 'share', 'git-cola', 'lib')

    if os.path.exists(cola_mod):
        # Source tree
        sys.path.insert(1, prefix)
    else:
        # Install tree
        sys.path.insert(1, install_lib)


setup_environment()


if __name__ == '__main__':
    from cola.main import main
    sys.exit(main())
