#!/usr/bin/env python

from __future__ import print_function

from os.path import abspath, dirname, join, exists

try:
    from setuptools.command.build_py import build_py as _build_py
except ImportError:
    from distutils.command.build_py import build_py as _build_py

from distutils.core import setup

import os
import sys
import subprocess

setup_dir = abspath(dirname(__file__))
version_file = join(setup_dir, 'src', 'hcl', 'version.py')


def _pre_install():
    '''Initialize the parse table at install time'''

    # Generate the parsetab.dat file at setup time
    dat = join(setup_dir, 'src', 'hcl', 'parsetab.dat')
    if exists(dat):
        os.unlink(dat)

    sys.path.insert(0, join(setup_dir, 'src'))

    import hcl
    from hcl.parser import HclParser

    parser = HclParser()


class build_py(_build_py):
    def run(self):
        self.execute(_pre_install, (), msg="generating parse table...")
        _build_py.run(self)


# Automatically generate a version.py based on the git version
if exists(join(setup_dir, '.git')):
    p = subprocess.Popen(
        ["git", "describe", "--tags", "--long", "--dirty=-dirty"],
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
    )
    out, err = p.communicate()
    # Make sure the git version has at least one tag
    if err:
        print("Error: You need to create a tag for this repo to use the builder")
        sys.exit(1)

    # Convert git version to PEP440 compliant version
    # - Older versions of pip choke on local identifiers, so we can't include the git commit
    v, commits, local = out.decode('utf-8').rstrip().split('-', 2)
    if commits != '0' or '-dirty' in local:
        v = '%s.post0.dev%s' % (v, commits)

    # Create the version.py file
    with open(version_file, 'w') as fp:
        fp.write("# Autogenerated by setup.py\n__version__ = '{0}'".format(v))

with open(join(setup_dir, 'README.rst'), 'r') as readme_file:
    long_description = readme_file.read()

with open(version_file) as fp:
    exec(compile(fp.read(), 'version.py', 'exec'), {}, locals())

install_requires = open(join(setup_dir, 'requirements.txt')).readlines()

setup(
    name='pyhcl',
    version=__version__,
    description='HCL configuration parser for python',
    long_description=long_description,
    author='Dustin Spicuzza',
    author_email='dustin@virtualroadside.com',
    url='https://github.com/virtuald/pyhcl',
    package_dir={'': 'src'},
    package_data={'hcl': ['src/hcl/parsetab.dat']},
    packages=['hcl','hcl.ply'],
    scripts=["scripts/hcltool"],
    include_package_data=True,
    setup_requires=install_requires,
    install_requires=install_requires,
    cmdclass={'build_py': build_py},
    classifiers=[
        "Development Status :: 5 - Production/Stable",
        "Intended Audience :: Developers",
        "License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)",
        "Operating System :: OS Independent",
        "Programming Language :: Python",
        "Programming Language :: Python :: 2",
        "Programming Language :: Python :: 2.7",
        "Programming Language :: Python :: 3",
        "Programming Language :: Python :: 3.3",
        "Programming Language :: Python :: 3.4",
        "Topic :: Text Processing",
    ],
)