import codecs
import os
import re

from setuptools import setup


###################################################################

NAME = 'attrs_sqlalchemy'
PY_MODULES = ['attrs_sqlalchemy']
META_PATH = 'attrs_sqlalchemy.py'
CLASSIFIERS = [
    'Development Status :: 2 - Pre-Alpha',
    'Intended Audience :: Developers',
    'Natural Language :: English',
    'License :: OSI Approved :: MIT License',
    'Operating System :: OS Independent',
    'Programming Language :: Python',
    'Programming Language :: Python :: 2',
    'Programming Language :: Python :: 2.6',
    'Programming Language :: Python :: 2.7',
    'Programming Language :: Python :: 3',
    'Programming Language :: Python :: 3.3',
    'Programming Language :: Python :: 3.4',
    'Programming Language :: Python :: 3.5',
    'Programming Language :: Python :: Implementation :: CPython',
    'Programming Language :: Python :: Implementation :: PyPy',
    'Topic :: Software Development :: Libraries :: Python Modules',
]
INSTALL_REQUIRES = [
    'attrs',
    'sqlalchemy',
]

###################################################################

HERE = os.path.abspath(os.path.dirname(__file__))


def read(*parts):
    """
    Build an absolute path from *parts* and and return the contents of the
    resulting file.  Assume UTF-8 encoding.
    """
    with codecs.open(os.path.join(HERE, *parts), 'rb', 'utf-8') as f:
        return f.read()


META_FILE = read(META_PATH)


def find_meta(meta):
    """
    Extract __*meta*__ from META_FILE.
    """
    meta_match = re.search(
        r"^__{meta}__ = ['\"]([^'\"]*)['\"]".format(meta=meta),
        META_FILE, re.M
    )
    if meta_match:
        return meta_match.group(1)
    raise RuntimeError('Unable to find __{meta}__ string.'.format(meta=meta))


if __name__ == '__main__':
    setup(
        name=NAME,
        description=find_meta('description'),
        license=find_meta('license'),
        url=find_meta('uri'),
        version=find_meta('version'),
        author=find_meta('author'),
        author_email=find_meta('email'),
        maintainer=find_meta('author'),
        maintainer_email=find_meta('email'),
        long_description=read('README.rst'),
        py_modules=PY_MODULES,
        zip_safe=False,
        classifiers=CLASSIFIERS,
        install_requires=INSTALL_REQUIRES,
    )
