#! /usr/bin/env python
# -*- coding: utf-8 -
#
# 2009 (c) Benoit Chesneau <benoitc@e-engura.com> 
# 2009 (c) Paul J. Davis <paul.joseph.davis@gmail.com>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

import os
import pkg_resources
import re
import sys
from paste.deploy import loadapp
from gunicorn.main import main

__usage__ = "%prog [OPTIONS] APP_MODULE"

_scheme_re = re.compile(r'^[a-z][a-z]+:', re.I)


def get_app(parser, opts, args):
    if len(args) != 1:
        parser.error("No applicantion name specified.")
        
    config_file = os.path.abspath(os.path.normpath(
                        os.path.join(os.getcwd(), args[0])))
                        
    if not os.path.exists(config_file):
        parser.error("Config file not found.")
    
    config_url = 'config:%s' % config_file
    relative_to = os.path.dirname(config_file)
    
    # load module in sys path
    sys.path.insert(0, relative_to)

    # add to eggs
    pkg_resources.working_set.add_entry(relative_to)
    app = loadapp(config_url, relative_to=relative_to)
    return app
    
main(__usage__, get_app)