##############################################################################
#
# Copyright (c) 2006 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Bootstrap a buildout-based project

Simply run this script in a directory containing a buildout.cfg.
The script accepts buildout command-line options, so you can
use the -c option to specify an alternate configuration file.

$Id$
"""

# Wrap so it doesn't try to parse args upon import.
if __name__ == '__main__':
    import os, shutil, sys, tempfile, urllib2

    tmpeggs = tempfile.mkdtemp()

    is_jython = sys.platform.startswith('java')

    try:
        import pkg_resources
    except ImportError:
        ez = {}
        exec urllib2.urlopen('http://peak.telecommunity.com/dist/ez_setup.py'
                             ).read() in ez
        ez['use_setuptools'](to_dir=tmpeggs, download_delay=0)

        import pkg_resources

    if sys.platform == 'win32':
        def quote(c):
            if ' ' in c:
                return '"%s"' % c # work around spawn lamosity on windows
            else:
                return c
    else:
        def quote (c):
            return c

    cmd = 'from setuptools.command.easy_install import main; main()'
    ws  = pkg_resources.working_set

    if len(sys.argv) > 2 and sys.argv[1] == '--version':
        VERSION = ' == %s' % sys.argv[2]
        args = sys.argv[3:] + ['bootstrap']
    else:
        VERSION = ''
        args = sys.argv[1:] + ['bootstrap']

    if is_jython:
        import subprocess

        assert subprocess.Popen([sys.executable] + ['-c', quote(cmd), '-mqNxd',
               quote(tmpeggs), 'zc.buildout' + VERSION],
               env=dict(os.environ,
                   PYTHONPATH=
                   ws.find(pkg_resources.Requirement.parse('setuptools')).location
                   ),
               ).wait() == 0

    else:
        assert os.spawnle(
            os.P_WAIT, sys.executable, quote (sys.executable),
            '-c', quote (cmd), '-mqNxd', quote (tmpeggs), 'zc.buildout' + VERSION,
            dict(os.environ,
                PYTHONPATH=
                ws.find(pkg_resources.Requirement.parse('setuptools')).location
                ),
            ) == 0

    ws.add_entry(tmpeggs)
    ws.require('zc.buildout' + VERSION)
    import zc.buildout.buildout
    zc.buildout.buildout.main(args)
    shutil.rmtree(tmpeggs)
