git.iko.soy/searx
on v0.8.1 help sign in
searx/bootstrap.py
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1##############################################################################
2#
3# Copyright (c) 2006 Zope Foundation and Contributors.
4# All Rights Reserved.
5#
6# This software is subject to the provisions of the Zope Public License,
7# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
8# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
9# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
10# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
11# FOR A PARTICULAR PURPOSE.
13##############################################################################
14"""Bootstrap a buildout-based project
16Simply run this script in a directory containing a buildout.cfg.
17The script accepts buildout command-line options, so you can
18use the -c option to specify an alternate configuration file.
19"""
21import os
22import shutil
23import sys
24import tempfile
26from optparse import OptionParser
28__version__ = '2015-07-01'
29# See zc.buildout's changelog if this version is up to date.
31tmpeggs = tempfile.mkdtemp(prefix='bootstrap-')
33usage = '''\
34[DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options]
36Bootstraps a buildout-based project.
38Simply run this script in a directory containing a buildout.cfg, using the
39Python that you want bin/buildout to use.
41Note that by using --find-links to point to local resources, you can keep
42this script from going over the network.
43'''
45parser = OptionParser(usage=usage)
46parser.add_option("--version",
47 action="store_true", default=False,
48 help=("Return bootstrap.py version."))
49parser.add_option("-t", "--accept-buildout-test-releases",
50 dest='accept_buildout_test_releases',
51 action="store_true", default=False,
52 help=("Normally, if you do not specify a --version, the "
53 "bootstrap script and buildout gets the newest "
54 "*final* versions of zc.buildout and its recipes and "
55 "extensions for you. If you use this flag, "
56 "bootstrap and buildout will get the newest releases "
57 "even if they are alphas or betas."))
58parser.add_option("-c", "--config-file",
59 help=("Specify the path to the buildout configuration "
60 "file to be used."))
61parser.add_option("-f", "--find-links",
62 help=("Specify a URL to search for buildout releases"))
63parser.add_option("--allow-site-packages",
64 action="store_true", default=False,
65 help=("Let bootstrap.py use existing site packages"))
66parser.add_option("--buildout-version",
67 help="Use a specific zc.buildout version")
68parser.add_option("--setuptools-version",
69 help="Use a specific setuptools version")
70parser.add_option("--setuptools-to-dir",
71 help=("Allow for re-use of existing directory of "
72 "setuptools versions"))
74options, args = parser.parse_args()
75if options.version:
76 print("bootstrap.py version %s" % __version__)
77 sys.exit(0)
80######################################################################
81# load/install setuptools
83try:
84 from urllib.request import urlopen
85except ImportError:
86 from urllib2 import urlopen
88ez = {}
89if os.path.exists('ez_setup.py'):
90 exec(open('ez_setup.py').read(), ez)
91else:
92 exec(urlopen('https://bootstrap.pypa.io/ez_setup.py').read(), ez)
94if not options.allow_site_packages:
95 # ez_setup imports site, which adds site packages
96 # this will remove them from the path to ensure that incompatible versions
97 # of setuptools are not in the path
98 import site
99 # inside a virtualenv, there is no 'getsitepackages'.
100 # We can't remove these reliably
101 if hasattr(site, 'getsitepackages'):
102 for sitepackage_path in site.getsitepackages():
103 # Strip all site-packages directories from sys.path that
104 # are not sys.prefix; this is because on Windows
105 # sys.prefix is a site-package directory.
106 if sitepackage_path != sys.prefix:
107 sys.path[:] = [x for x in sys.path
108 if sitepackage_path not in x]
110setup_args = dict(to_dir=tmpeggs, download_delay=0)
112if options.setuptools_version is not None:
113 setup_args['version'] = options.setuptools_version
114if options.setuptools_to_dir is not None:
115 setup_args['to_dir'] = options.setuptools_to_dir
117ez['use_setuptools'](**setup_args)
118import setuptools
119import pkg_resources
121# This does not (always?) update the default working set. We will
122# do it.
123for path in sys.path:
124 if path not in pkg_resources.working_set.entries:
125 pkg_resources.working_set.add_entry(path)
127######################################################################
128# Install buildout
130ws = pkg_resources.working_set
132setuptools_path = ws.find(
133 pkg_resources.Requirement.parse('setuptools')).location
135# Fix sys.path here as easy_install.pth added before PYTHONPATH
136cmd = [sys.executable, '-c',
137 'import sys; sys.path[0:0] = [%r]; ' % setuptools_path +
138 'from setuptools.command.easy_install import main; main()',
139 '-mZqNxd', tmpeggs]
141find_links = os.environ.get(
142 'bootstrap-testing-find-links',
143 options.find_links or
144 ('http://downloads.buildout.org/'
145 if options.accept_buildout_test_releases else None)
146 )
147if find_links:
148 cmd.extend(['-f', find_links])
150requirement = 'zc.buildout'
151version = options.buildout_version
152if version is None and not options.accept_buildout_test_releases:
153 # Figure out the most recent final version of zc.buildout.
154 import setuptools.package_index
155 _final_parts = '*final-', '*final'
157 def _final_version(parsed_version):
158 try:
159 return not parsed_version.is_prerelease
160 except AttributeError:
161 # Older setuptools
162 for part in parsed_version:
163 if (part[:1] == '*') and (part not in _final_parts):
164 return False
165 return True
167 index = setuptools.package_index.PackageIndex(
168 search_path=[setuptools_path])
169 if find_links:
170 index.add_find_links((find_links,))
171 req = pkg_resources.Requirement.parse(requirement)
172 if index.obtain(req) is not None:
173 best = []
174 bestv = None
175 for dist in index[req.project_name]:
176 distv = dist.parsed_version
177 if _final_version(distv):
178 if bestv is None or distv > bestv:
179 best = [dist]
180 bestv = distv
181 elif distv == bestv:
182 best.append(dist)
183 if best:
184 best.sort()
185 version = best[-1].version
186if version:
187 requirement = '=='.join((requirement, version))
188cmd.append(requirement)
190import subprocess
191if subprocess.call(cmd) != 0:
192 raise Exception(
193 "Failed to execute command:\n%s" % repr(cmd)[1:-1])
195######################################################################
196# Import and run buildout
198ws.add_entry(tmpeggs)
199ws.require(requirement)
200import zc.buildout.buildout
202if not [a for a in args if '=' not in a]:
203 args.append('bootstrap')
205# if -c was provided, we push it back into args for buildout' main function
206if options.config_file is not None:
207 args[0:0] = ['-c', options.config_file]
209zc.buildout.buildout.main(args)
210shutil.rmtree(tmpeggs)