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Update to latest v1 bootstrap
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@mgedmin
mgedmin committed Mar 12, 2013
1 parent fc1bf0b commit 391a0ac
Showing 1 changed file with 49 additions and 50 deletions.
99 changes: 49 additions & 50 deletions bootstrap.py
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Expand Up @@ -18,32 +18,27 @@
use the -c option to specify an alternate configuration file.
"""

import os, shutil, sys, tempfile, textwrap
try:
import urllib.request as urllib2
except ImportError:
import urllib2
import subprocess
import os, shutil, sys, tempfile, urllib, urllib2, subprocess
from optparse import OptionParser

if sys.platform == 'win32':
def quote(c):
if ' ' in c:
return '"%s"' % c # work around spawn lamosity on windows
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, '-S', '-c',
[sys.executable, '-Sc',
'try:\n'
' import pickle\n'
' import ConfigParser\n'
'except ImportError:\n'
' print(1)\n'
' print 1\n'
'else:\n'
' print(0)\n'],
' print 0\n'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
has_broken_dash_S = bool(int(stdout.strip()))

Expand All @@ -55,21 +50,20 @@ def quote(c):
# We will restart with python -S.
args = sys.argv[:]
args[0:0] = [sys.executable, '-S']
args = list(map(quote, args))
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
import site # imported because of its side effects
sys.path[:] = clean_path
for k, v in list(sys.modules.items()):
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'))):
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)

Expand All @@ -78,12 +72,13 @@ def quote(c):
setuptools_source = 'http://peak.telecommunity.com/dist/ez_setup.py'
distribute_source = 'http://python-distribute.org/distribute_setup.py'


# parsing arguments
def normalize_to_url(option, opt_str, value, parser):
if value:
if '://' not in value: # It doesn't smell like a URL.
if '://' not in value: # It doesn't smell like a URL.
value = 'file://%s' % (
urllib2.pathname2url(
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.
Expand All @@ -108,18 +103,15 @@ def normalize_to_url(option, opt_str, value, parser):
parser = OptionParser(usage=usage)
parser.add_option("-v", "--version", dest="version",
help="use a specific zc.buildout version")
parser.add_option("--setup-version", dest="setup_version",
help="The version of setuptools or distribute to use.")
parser.add_option("-d", "--distribute",
action="store_true", dest="use_distribute",
default= sys.version_info[0] >= 3,
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 +"."))
"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 "
Expand All @@ -131,8 +123,7 @@ def normalize_to_url(option, opt_str, value, parser):
"bootstrap script completes."))
parser.add_option("-t", "--accept-buildout-test-releases",
dest='accept_buildout_test_releases',
action="store_true",
default=sys.version_info[0] > 2,
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 "
Expand All @@ -145,10 +136,6 @@ def normalize_to_url(option, opt_str, value, parser):

options, args = parser.parse_args()

# if -c was provided, we push it back into args for buildout's main function
if options.config_file is not None:
args += ['-c', options.config_file]

if options.eggs:
eggs_dir = os.path.abspath(os.path.expanduser(options.eggs))
else:
Expand All @@ -161,35 +148,28 @@ def normalize_to_url(option, opt_str, value, parser):
options.setup_source = setuptools_source

if options.accept_buildout_test_releases:
args.append('buildout:accept-buildout-test-releases=true')
args.append('bootstrap')
args.insert(0, 'buildout:accept-buildout-test-releases=true')

try:
import pkg_resources
import setuptools # A flag. Sometimes pkg_resources is installed alone.
import setuptools # A flag. Sometimes pkg_resources is installed alone.
if not hasattr(pkg_resources, '_distribute'):
raise ImportError
except ImportError:
ez_code = urllib2.urlopen(
options.setup_source).read().replace('\r\n'.encode(), '\n'.encode())
options.setup_source).read().replace('\r\n', '\n')
ez = {}
exec(ez_code, ez)
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.setup_version:
setup_args['version'] = options.setup_version
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:
if sys.version_info[0] >= 3:
import imp
reload_ = imp.reload
else:
reload_ = reload

reload_(sys.modules['pkg_resources'])
reload(sys.modules['pkg_resources'])
import pkg_resources
# This does not (always?) update the default working set. We will
# do it.
Expand All @@ -209,6 +189,8 @@ def normalize_to_url(option, opt_str, value, parser):
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)])

Expand All @@ -229,6 +211,7 @@ def normalize_to_url(option, opt_str, value, parser):
# Figure out the most recent final version of zc.buildout.
import setuptools.package_index
_final_parts = '*final-', '*final'

def _final_version(parsed_version):
for part in parsed_version:
if (part[:1] == '*') and (part not in _final_parts):
Expand All @@ -244,6 +227,8 @@ def _final_version(parsed_version):
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]
Expand All @@ -253,26 +238,40 @@ def _final_version(parsed_version):
if best:
best.sort()
version = best[-1].version

if version:
requirement = '=='.join((requirement, version))
requirement += '=='+version
else:
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
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.")
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)

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)
if not options.eggs: # clean up temporary egg directory
if not options.eggs: # clean up temporary egg directory
shutil.rmtree(eggs_dir)

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