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Fresh http://downloads.buildout.org/1/bootstrap.py

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commit fb60111ecb08ebeb7bad2f6f0e7472c0263de838 1 parent 34ea8c7
@mauritsvanrees mauritsvanrees authored
Showing with 222 additions and 66 deletions.
  1. +222 −66 bootstrap.py
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288 bootstrap.py
@@ -1,6 +1,6 @@
##############################################################################
#
-# Copyright (c) 2006 Zope Corporation and Contributors.
+# Copyright (c) 2006 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
@@ -16,106 +16,262 @@
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.
-
-$Id$
"""
-import os, shutil, sys, tempfile, urllib2
+import os, shutil, sys, tempfile, urllib, urllib2, subprocess
from optparse import OptionParser
-tmpeggs = tempfile.mkdtemp()
+if sys.platform == 'win32':
+ def quote(c):
+ if ' ' in c:
+ return '"%s"' % c # work around spawn lamosity on windows
+ else:
+ return c
+else:
+ quote = str
+
+# See zc.buildout.easy_install._has_broken_dash_S for motivation and comments.
+stdout, stderr = subprocess.Popen(
+ [sys.executable, '-Sc',
+ 'try:\n'
+ ' import ConfigParser\n'
+ 'except ImportError:\n'
+ ' print 1\n'
+ 'else:\n'
+ ' print 0\n'],
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
+has_broken_dash_S = bool(int(stdout.strip()))
+
+# In order to be more robust in the face of system Pythons, we want to
+# run without site-packages loaded. This is somewhat tricky, in
+# particular because Python 2.6's distutils imports site, so starting
+# with the -S flag is not sufficient. However, we'll start with that:
+if not has_broken_dash_S and 'site' in sys.modules:
+ # We will restart with python -S.
+ args = sys.argv[:]
+ args[0:0] = [sys.executable, '-S']
+ args = map(quote, args)
+ os.execv(sys.executable, args)
+# Now we are running with -S. We'll get the clean sys.path, import site
+# because distutils will do it later, and then reset the path and clean
+# out any namespace packages from site-packages that might have been
+# loaded by .pth files.
+clean_path = sys.path[:]
+import site # imported because of its side effects
+sys.path[:] = clean_path
+for k, v in sys.modules.items():
+ if k in ('setuptools', 'pkg_resources') or (
+ hasattr(v, '__path__') and
+ len(v.__path__) == 1 and
+ not os.path.exists(os.path.join(v.__path__[0], '__init__.py'))):
+ # This is a namespace package. Remove it.
+ sys.modules.pop(k)
is_jython = sys.platform.startswith('java')
+setuptools_source = 'http://peak.telecommunity.com/dist/ez_setup.py'
+distribute_source = 'http://python-distribute.org/distribute_setup.py'
+
+
# parsing arguments
-parser = OptionParser()
+def normalize_to_url(option, opt_str, value, parser):
+ if value:
+ if '://' not in value: # It doesn't smell like a URL.
+ value = 'file://%s' % (
+ urllib.pathname2url(
+ os.path.abspath(os.path.expanduser(value))),)
+ if opt_str == '--download-base' and not value.endswith('/'):
+ # Download base needs a trailing slash to make the world happy.
+ value += '/'
+ else:
+ value = None
+ name = opt_str[2:].replace('-', '_')
+ setattr(parser.values, name, value)
+
+usage = '''\
+[DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options]
+
+Bootstraps a buildout-based project.
+
+Simply run this script in a directory containing a buildout.cfg, using the
+Python that you want bin/buildout to use.
+
+Note that by using --setup-source and --download-base to point to
+local resources, you can keep this script from going over the network.
+'''
+
+parser = OptionParser(usage=usage)
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=False,
- help="Use Disribute rather than Setuptools.")
-
+ action="store_true", dest="use_distribute", default=False,
+ help="Use Distribute rather than Setuptools.")
+parser.add_option("--setup-source", action="callback", dest="setup_source",
+ callback=normalize_to_url, nargs=1, type="string",
+ help=("Specify a URL or file location for the setup file. "
+ "If you use Setuptools, this will default to " +
+ setuptools_source + "; if you use Distribute, this "
+ "will default to " + distribute_source + "."))
+parser.add_option("--download-base", action="callback", dest="download_base",
+ callback=normalize_to_url, nargs=1, type="string",
+ help=("Specify a URL or directory for downloading "
+ "zc.buildout and either Setuptools or Distribute. "
+ "Defaults to PyPI."))
+parser.add_option("--eggs",
+ help=("Specify a directory for storing eggs. Defaults to "
+ "a temporary directory that is deleted when the "
+ "bootstrap script completes."))
+parser.add_option("-t", "--accept-buildout-test-releases",
+ dest='accept_buildout_test_releases',
+ action="store_true", default=False,
+ help=("Normally, if you do not specify a --version, the "
+ "bootstrap script and buildout gets the newest "
+ "*final* versions of zc.buildout and its recipes and "
+ "extensions for you. If you use this flag, "
+ "bootstrap and buildout will get the newest releases "
+ "even if they are alphas or betas."))
parser.add_option("-c", None, action="store", dest="config_file",
help=("Specify the path to the buildout configuration "
"file to be used."))
options, args = parser.parse_args()
-# if -c was provided, we push it back into args for buildout' main function
-if options.config_file is not None:
- args += ['-c', options.config_file]
-
-if options.version is not None:
- VERSION = '==%s' % options.version
+if options.eggs:
+ eggs_dir = os.path.abspath(os.path.expanduser(options.eggs))
else:
- VERSION = ''
+ eggs_dir = tempfile.mkdtemp()
-USE_DISTRIBUTE = options.distribute
-args = args + ['bootstrap']
+if options.setup_source is None:
+ if options.use_distribute:
+ options.setup_source = distribute_source
+ else:
+ options.setup_source = setuptools_source
+
+if options.accept_buildout_test_releases:
+ args.insert(0, 'buildout:accept-buildout-test-releases=true')
-to_reload = False
try:
import pkg_resources
+ import setuptools # A flag. Sometimes pkg_resources is installed alone.
if not hasattr(pkg_resources, '_distribute'):
- to_reload = True
raise ImportError
except ImportError:
+ ez_code = urllib2.urlopen(
+ options.setup_source).read().replace('\r\n', '\n')
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)
+ exec ez_code in ez
+ setup_args = dict(to_dir=eggs_dir, download_delay=0)
+ if options.download_base:
+ setup_args['download_base'] = options.download_base
+ if options.use_distribute:
+ setup_args['no_fake'] = True
+ if sys.version_info[:2] == (2, 4):
+ setup_args['version'] = '0.6.32'
+ ez['use_setuptools'](**setup_args)
+ if 'pkg_resources' in sys.modules:
+ reload(sys.modules['pkg_resources'])
+ import pkg_resources
+ # This does not (always?) update the default working set. We will
+ # do it.
+ for path in sys.path:
+ if path not in pkg_resources.working_set.entries:
+ pkg_resources.working_set.add_entry(path)
- if to_reload:
- reload(pkg_resources)
- else:
- import pkg_resources
+cmd = [quote(sys.executable),
+ '-c',
+ quote('from setuptools.command.easy_install import main; main()'),
+ '-mqNxd',
+ quote(eggs_dir)]
-if sys.platform == 'win32':
- def quote(c):
- if ' ' in c:
- return '"%s"' % c # work around spawn lamosity on windows
- else:
- return c
+if not has_broken_dash_S:
+ cmd.insert(1, '-S')
+
+find_links = options.download_base
+if not find_links:
+ find_links = os.environ.get('bootstrap-testing-find-links')
+if not find_links and options.accept_buildout_test_releases:
+ find_links = 'http://downloads.buildout.org/'
+if find_links:
+ cmd.extend(['-f', quote(find_links)])
+
+if options.use_distribute:
+ setup_requirement = 'distribute'
else:
- def quote (c):
- return c
+ setup_requirement = 'setuptools'
+ws = pkg_resources.working_set
+setup_requirement_path = ws.find(
+ pkg_resources.Requirement.parse(setup_requirement)).location
+env = dict(
+ os.environ,
+ PYTHONPATH=setup_requirement_path)
+
+requirement = 'zc.buildout'
+version = options.version
+if version is None and not options.accept_buildout_test_releases:
+ # Figure out the most recent final version of zc.buildout.
+ import setuptools.package_index
+ _final_parts = '*final-', '*final'
-cmd = 'from setuptools.command.easy_install import main; main()'
-ws = pkg_resources.working_set
+ def _final_version(parsed_version):
+ for part in parsed_version:
+ if (part[:1] == '*') and (part not in _final_parts):
+ return False
+ return True
+ index = setuptools.package_index.PackageIndex(
+ search_path=[setup_requirement_path])
+ if find_links:
+ index.add_find_links((find_links,))
+ req = pkg_resources.Requirement.parse(requirement)
+ if index.obtain(req) is not None:
+ best = []
+ bestv = None
+ for dist in index[req.project_name]:
+ distv = dist.parsed_version
+ if distv >= pkg_resources.parse_version('2dev'):
+ continue
+ if _final_version(distv):
+ if bestv is None or distv > bestv:
+ best = [dist]
+ bestv = distv
+ elif distv == bestv:
+ best.append(dist)
+ if best:
+ best.sort()
+ version = best[-1].version
-if USE_DISTRIBUTE:
- requirement = 'distribute'
+if version:
+ requirement += '=='+version
else:
- requirement = 'setuptools'
+ requirement += '<2dev'
+
+cmd.append(requirement)
if is_jython:
import subprocess
+ exitcode = subprocess.Popen(cmd, env=env).wait()
+else: # Windows prefers this, apparently; otherwise we would prefer subprocess
+ exitcode = os.spawnle(*([os.P_WAIT, sys.executable] + cmd + [env]))
+if exitcode != 0:
+ sys.stdout.flush()
+ sys.stderr.flush()
+ print ("An error occurred when trying to install zc.buildout. "
+ "Look above this message for any errors that "
+ "were output by easy_install.")
+ sys.exit(exitcode)
- 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)
+ws.add_entry(eggs_dir)
+ws.require(requirement)
import zc.buildout.buildout
+
+# If there isn't already a command in the args, add bootstrap
+if not [a for a in args if '=' not in a]:
+ args.append('bootstrap')
+
+
+# if -c was provided, we push it back into args for buildout's main function
+if options.config_file is not None:
+ args[0:0] = ['-c', options.config_file]
+
zc.buildout.buildout.main(args)
-shutil.rmtree(tmpeggs)
+if not options.eggs: # clean up temporary egg directory
+ shutil.rmtree(eggs_dir)
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