import os
import os.path
import subprocess

from setuptools import setup, find_packages
from distutils.command.sdist import sdist


class eo_sdist(sdist):
    def run(self):
        if os.path.exists('VERSION'):
            os.remove('VERSION')
        version = get_version()
        version_file = open('VERSION', 'w')
        version_file.write(version)
        version_file.close()
        sdist.run(self)
        if os.path.exists('VERSION'):
            os.remove('VERSION')

def get_version():
    '''Use the VERSION, if absent generates a version with git describe, if not
       tag exists, take 0.0- and add the length of the commit log.
    '''
    if os.path.exists('VERSION'):
        with open('VERSION', 'r') as v:
            return v.read()
    if os.path.exists('.git'):
        p = subprocess.Popen(['git','describe','--dirty=.dirty','--match=v*'],
                stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        result = p.communicate()[0]
        if p.returncode == 0:
            result = result.decode('ascii').strip()[1:] # strip spaces/newlines and initial v
            if '-' in result: # not a tagged version
                real_number, commit_count, commit_hash = result.split('-', 2)
                version = '%s.post%s+%s' % (real_number, commit_count, commit_hash)
            else:
                version = result
            return version
        else:
            return '0.0.post%s' % len(
                    subprocess.check_output(
                            ['git', 'rev-list', 'HEAD']).splitlines())
    return '0.0'


def get_source_files():
    for dirname, _, files in os.walk('ckeditor/static/ckeditor/ckeditor/_source'):
        for filename in files:
            yield os.path.join('/'.join(dirname.split('/')[1:]), filename)

setup(
    name='django-ckeditor',
    version=get_version(),
    description='Django admin CKEditor integration.',
    long_description=open('README.rst', 'r').read() + open('AUTHORS.rst', 'r').read() + open('CHANGELOG.rst', 'r').read(),
    author='Shaun Sephton & Piotr Malinski',
    author_email='riklaunim@gmail.com',
    url='https://github.com/django-ckeditor/django-ckeditor',
    packages=find_packages(exclude=["*.demo"]),
    install_requires=[
        'Django',
    ],
    include_package_data=True,
    classifiers=[
        "Programming Language :: Python",
        "Programming Language :: Python :: 2.7",
        "Programming Language :: Python :: 3.3",
        "Programming Language :: Python :: 3.4",
        "License :: OSI Approved :: BSD License",
        "Operating System :: OS Independent",
        "Framework :: Django",
        "Intended Audience :: Developers",
        "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
    ],
    cmdclass={
        'sdist': eo_sdist,
    },
    zip_safe=False,
)