#! /usr/bin/env python

import subprocess
import os

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


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


setup(name="wcs-olap",
      version=get_version(),
      license="AGPLv3+",
      description="Export w.c.s. data to an OLAP cube",
      long_description=open('README.rst').read(),
      url="http://dev.entrouvert.org/projects/publik-bi/",
      author="Entr'ouvert",
      author_email="authentic@listes.entrouvert.com",
      maintainer="Benjamin Dauvergne",
      maintainer_email="bdauvergne@entrouvert.com",
      packages=find_packages(),
      include_package_data=True,
      install_requires=[
          'requests',
          'psycopg2',
          'isodate',
          'six',
          'cached-property'
      ],
      entry_points={
          'console_scripts': ['wcs-olap=wcs_olap.cmd:main'],
      },
      cmdclass={'sdist': eo_sdist})