bootstrap.py

##############################################################################
#
# 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: bootstrap.py 102545 2009-08-06 14:49:47Z chrisw $
"""

import os, shutil, sys, tempfile, urllib2
from optparse import OptionParser

tmpeggs = tempfile.mkdtemp()

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

# parsing arguments
parser = OptionParser()
parser.add_option("-v", "--version", dest="version",
 help="use a specific zc.buildout version")
parser.add_option("-d", "--distribute",
 action="store_true", dest="distribute", default=True,
 help="Use Disribute rather than Setuptools.")

options, args = parser.parse_args()

if options.version is not None:
 VERSION = '==%s' % options.version
else:
 VERSION = ''

USE_DISTRIBUTE = options.distribute
args = args + ['bootstrap']

to_reload = False
try:
 import pkg_resources
 if not hasattr(pkg_resources, '_distribute'):
 to_reload = True
 raise ImportError
except ImportError:
 ez = {}
 if USE_DISTRIBUTE:
 exec urllib2.urlopen('http://python-distribute.org/distribute_setup.py'
 ).read() in ez
 ez['use_setuptools'](to_dir=tmpeggs, download_delay=0, no_fake=True)
 else:
 exec urllib2.urlopen('http://peak.telecommunity.com/dist/ez_setup.py'
 ).read() in ez
 ez['use_setuptools'](to_dir=tmpeggs, download_delay=0)

 if to_reload:
 reload(pkg_resources)
 else:
 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 USE_DISTRIBUTE:
 requirement = 'distribute'
else:
 requirement = 'setuptools'

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(requirement)).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(requirement)).location
 ),
 ) == 0

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