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[auf_framonde.git] / bootstrap.py
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.
12 #
13 ##############################################################################
14 """Bootstrap a buildout-based project
15
16 Simply run this script in a directory containing a buildout.cfg.
17 The script accepts buildout command-line options, so you can
18 use the -c option to specify an alternate configuration file.
19 """
20
21 import os, shutil, sys, tempfile, urllib, urllib2, subprocess
22 from optparse import OptionParser
23
24 if sys.platform == 'win32':
25 def quote(c):
26 if ' ' in c:
27 return '"%s"' % c # work around spawn lamosity on windows
28 else:
29 return c
30 else:
31 quote = str
32
33 # See zc.buildout.easy_install._has_broken_dash_S for motivation and comments.
34 stdout, stderr = subprocess.Popen(
35 [sys.executable, '-Sc',
36 'try:\n'
37 ' import ConfigParser\n'
38 'except ImportError:\n'
39 ' print 1\n'
40 'else:\n'
41 ' print 0\n'],
42 stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
43 has_broken_dash_S = bool(int(stdout.strip()))
44
45 # In order to be more robust in the face of system Pythons, we want to
46 # run without site-packages loaded. This is somewhat tricky, in
47 # particular because Python 2.6's distutils imports site, so starting
48 # with the -S flag is not sufficient. However, we'll start with that:
49 if not has_broken_dash_S and 'site' in sys.modules:
50 # We will restart with python -S.
51 args = sys.argv[:]
52 args[0:0] = [sys.executable, '-S']
53 args = map(quote, args)
54 os.execv(sys.executable, args)
55 # Now we are running with -S. We'll get the clean sys.path, import site
56 # because distutils will do it later, and then reset the path and clean
57 # out any namespace packages from site-packages that might have been
58 # loaded by .pth files.
59 clean_path = sys.path[:]
60 import site # imported because of its side effects
61 sys.path[:] = clean_path
62 for k, v in sys.modules.items():
63 if k in ('setuptools', 'pkg_resources') or (
64 hasattr(v, '__path__') and
65 len(v.__path__) == 1 and
66 not os.path.exists(os.path.join(v.__path__[0], '__init__.py'))):
67 # This is a namespace package. Remove it.
68 sys.modules.pop(k)
69
70 is_jython = sys.platform.startswith('java')
71
72 setuptools_source = 'http://peak.telecommunity.com/dist/ez_setup.py'
73 distribute_source = 'http://python-distribute.org/distribute_setup.py'
74 distribute_source = 'https://bitbucket.org/pypa/setuptools/raw/f657df1f1ed46596d236376649c99a470662b4ba/distribute_setup.py'
75
76 # parsing arguments
77 def normalize_to_url(option, opt_str, value, parser):
78 if value:
79 if '://' not in value: # It doesn't smell like a URL.
80 value = 'file://%s' % (
81 urllib.pathname2url(
82 os.path.abspath(os.path.expanduser(value))),)
83 if opt_str == '--download-base' and not value.endswith('/'):
84 # Download base needs a trailing slash to make the world happy.
85 value += '/'
86 else:
87 value = None
88 name = opt_str[2:].replace('-', '_')
89 setattr(parser.values, name, value)
90
91 usage = '''\
92 [DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options]
93
94 Bootstraps a buildout-based project.
95
96 Simply run this script in a directory containing a buildout.cfg, using the
97 Python that you want bin/buildout to use.
98
99 Note that by using --setup-source and --download-base to point to
100 local resources, you can keep this script from going over the network.
101 '''
102
103 parser = OptionParser(usage=usage)
104 parser.add_option("-v", "--version", dest="version",
105 help="use a specific zc.buildout version")
106 parser.add_option("-d", "--distribute",
107 action="store_true", dest="use_distribute", default=False,
108 help="Use Distribute rather than Setuptools.")
109 parser.add_option("--setup-source", action="callback", dest="setup_source",
110 callback=normalize_to_url, nargs=1, type="string",
111 help=("Specify a URL or file location for the setup file. "
112 "If you use Setuptools, this will default to " +
113 setuptools_source + "; if you use Distribute, this "
114 "will default to " + distribute_source + "."))
115 parser.add_option("--download-base", action="callback", dest="download_base",
116 callback=normalize_to_url, nargs=1, type="string",
117 help=("Specify a URL or directory for downloading "
118 "zc.buildout and either Setuptools or Distribute. "
119 "Defaults to PyPI."))
120 parser.add_option("--eggs",
121 help=("Specify a directory for storing eggs. Defaults to "
122 "a temporary directory that is deleted when the "
123 "bootstrap script completes."))
124 parser.add_option("-t", "--accept-buildout-test-releases",
125 dest='accept_buildout_test_releases',
126 action="store_true", default=False,
127 help=("Normally, if you do not specify a --version, the "
128 "bootstrap script and buildout gets the newest "
129 "*final* versions of zc.buildout and its recipes and "
130 "extensions for you. If you use this flag, "
131 "bootstrap and buildout will get the newest releases "
132 "even if they are alphas or betas."))
133 parser.add_option("-c", None, action="store", dest="config_file",
134 help=("Specify the path to the buildout configuration "
135 "file to be used."))
136
137 options, args = parser.parse_args()
138
139 if options.eggs:
140 eggs_dir = os.path.abspath(os.path.expanduser(options.eggs))
141 else:
142 eggs_dir = tempfile.mkdtemp()
143
144 if options.setup_source is None:
145 if options.use_distribute:
146 options.setup_source = distribute_source
147 else:
148 options.setup_source = setuptools_source
149
150 if options.accept_buildout_test_releases:
151 args.insert(0, 'buildout:accept-buildout-test-releases=true')
152
153 try:
154 import pkg_resources
155 import setuptools # A flag. Sometimes pkg_resources is installed alone.
156 if not hasattr(pkg_resources, '_distribute'):
157 raise ImportError
158 except ImportError:
159 ez_code = urllib2.urlopen(
160 options.setup_source).read().replace('\r\n', '\n')
161 ez = {}
162 exec ez_code in ez
163 setup_args = dict(to_dir=eggs_dir, download_delay=0)
164 if options.download_base:
165 setup_args['download_base'] = options.download_base
166 if options.use_distribute:
167 setup_args['no_fake'] = True
168 if sys.version_info[:2] == (2, 4):
169 setup_args['version'] = '0.6.32'
170 ez['use_setuptools'](**setup_args)
171 if 'pkg_resources' in sys.modules:
172 reload(sys.modules['pkg_resources'])
173 import pkg_resources
174 # This does not (always?) update the default working set. We will
175 # do it.
176 for path in sys.path:
177 if path not in pkg_resources.working_set.entries:
178 pkg_resources.working_set.add_entry(path)
179
180 cmd = [quote(sys.executable),
181 '-c',
182 quote('from setuptools.command.easy_install import main; main()'),
183 '-mqNxd',
184 quote(eggs_dir)]
185
186 if not has_broken_dash_S:
187 cmd.insert(1, '-S')
188
189 find_links = options.download_base
190 if not find_links:
191 find_links = os.environ.get('bootstrap-testing-find-links')
192 if not find_links and options.accept_buildout_test_releases:
193 find_links = 'http://downloads.buildout.org/'
194 if find_links:
195 cmd.extend(['-f', quote(find_links)])
196
197 if options.use_distribute:
198 setup_requirement = 'distribute'
199 else:
200 setup_requirement = 'setuptools'
201 ws = pkg_resources.working_set
202 setup_requirement_path = ws.find(
203 pkg_resources.Requirement.parse(setup_requirement)).location
204 env = dict(
205 os.environ,
206 PYTHONPATH=setup_requirement_path)
207
208 requirement = 'zc.buildout'
209 version = options.version
210 if version is None and not options.accept_buildout_test_releases:
211 # Figure out the most recent final version of zc.buildout.
212 import setuptools.package_index
213 _final_parts = '*final-', '*final'
214
215 def _final_version(parsed_version):
216 for part in parsed_version:
217 if (part[:1] == '*') and (part not in _final_parts):
218 return False
219 return True
220 index = setuptools.package_index.PackageIndex(
221 search_path=[setup_requirement_path])
222 if find_links:
223 index.add_find_links((find_links,))
224 req = pkg_resources.Requirement.parse(requirement)
225 if index.obtain(req) is not None:
226 best = []
227 bestv = None
228 for dist in index[req.project_name]:
229 distv = dist.parsed_version
230 if distv >= pkg_resources.parse_version('2dev'):
231 continue
232 if _final_version(distv):
233 if bestv is None or distv > bestv:
234 best = [dist]
235 bestv = distv
236 elif distv == bestv:
237 best.append(dist)
238 if best:
239 best.sort()
240 version = best[-1].version
241
242 if version:
243 requirement += '=='+version
244 else:
245 requirement += '<2dev'
246
247 cmd.append(requirement)
248
249 if is_jython:
250 import subprocess
251 exitcode = subprocess.Popen(cmd, env=env).wait()
252 else: # Windows prefers this, apparently; otherwise we would prefer subprocess
253 exitcode = os.spawnle(*([os.P_WAIT, sys.executable] + cmd + [env]))
254 if exitcode != 0:
255 sys.stdout.flush()
256 sys.stderr.flush()
257 print ("An error occurred when trying to install zc.buildout. "
258 "Look above this message for any errors that "
259 "were output by easy_install.")
260 sys.exit(exitcode)
261
262 ws.add_entry(eggs_dir)
263 ws.require(requirement)
264 import zc.buildout.buildout
265
266 # If there isn't already a command in the args, add bootstrap
267 if not [a for a in args if '=' not in a]:
268 args.append('bootstrap')
269
270
271 # if -c was provided, we push it back into args for buildout's main function
272 if options.config_file is not None:
273 args[0:0] = ['-c', options.config_file]
274
275 zc.buildout.buildout.main(args)
276 if not options.eggs: # clean up temporary egg directory
277 shutil.rmtree(eggs_dir)