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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. |
| 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 |
| 22 | +import shutil |
| 23 | +import sys |
| 24 | +import tempfile |
| 25 | + |
| 26 | +from optparse import OptionParser |
| 27 | + |
| 28 | +tmpeggs = tempfile.mkdtemp() |
| 29 | + |
| 30 | +usage = '''\ |
| 31 | +[DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options] |
| 32 | +
|
| 33 | +Bootstraps a buildout-based project. |
| 34 | +
|
| 35 | +Simply run this script in a directory containing a buildout.cfg, using the |
| 36 | +Python that you want bin/buildout to use. |
| 37 | +
|
| 38 | +Note that by using --find-links to point to local resources, you can keep |
| 39 | +this script from going over the network. |
| 40 | +''' |
| 41 | + |
| 42 | +parser = OptionParser(usage=usage) |
| 43 | +parser.add_option("-v", "--version", help="use a specific zc.buildout version") |
| 44 | + |
| 45 | +parser.add_option("-t", "--accept-buildout-test-releases", |
| 46 | + dest='accept_buildout_test_releases', |
| 47 | + action="store_true", default=False, |
| 48 | + help=("Normally, if you do not specify a --version, the " |
| 49 | + "bootstrap script and buildout gets the newest " |
| 50 | + "*final* versions of zc.buildout and its recipes and " |
| 51 | + "extensions for you. If you use this flag, " |
| 52 | + "bootstrap and buildout will get the newest releases " |
| 53 | + "even if they are alphas or betas.")) |
| 54 | +parser.add_option("-c", "--config-file", |
| 55 | + help=("Specify the path to the buildout configuration " |
| 56 | + "file to be used.")) |
| 57 | +parser.add_option("-f", "--find-links", |
| 58 | + help=("Specify a URL to search for buildout releases")) |
| 59 | +parser.add_option("--allow-site-packages", |
| 60 | + action="store_true", default=False, |
| 61 | + help=("Let bootstrap.py use existing site packages")) |
| 62 | +parser.add_option("--setuptools-version", |
| 63 | + help="use a specific setuptools version") |
| 64 | + |
| 65 | + |
| 66 | +options, args = parser.parse_args() |
| 67 | + |
| 68 | +###################################################################### |
| 69 | +# load/install setuptools |
| 70 | + |
| 71 | +try: |
| 72 | + if options.allow_site_packages: |
| 73 | + import setuptools |
| 74 | + import pkg_resources |
| 75 | + from urllib.request import urlopen |
| 76 | +except ImportError: |
| 77 | + from urllib2 import urlopen |
| 78 | + |
| 79 | +ez = {} |
| 80 | +exec(urlopen('https://bootstrap.pypa.io/ez_setup.py').read(), ez) |
| 81 | + |
| 82 | +if not options.allow_site_packages: |
| 83 | + # ez_setup imports site, which adds site packages |
| 84 | + # this will remove them from the path to ensure that incompatible versions |
| 85 | + # of setuptools are not in the path |
| 86 | + import site |
| 87 | + # inside a virtualenv, there is no 'getsitepackages'. |
| 88 | + # We can't remove these reliably |
| 89 | + if hasattr(site, 'getsitepackages'): |
| 90 | + for sitepackage_path in site.getsitepackages(): |
| 91 | + sys.path[:] = [x for x in sys.path if sitepackage_path not in x] |
| 92 | + |
| 93 | +setup_args = dict(to_dir=tmpeggs, download_delay=0) |
| 94 | + |
| 95 | +if options.setuptools_version is not None: |
| 96 | + setup_args['version'] = options.setuptools_version |
| 97 | + |
| 98 | +ez['use_setuptools'](**setup_args) |
| 99 | +import setuptools |
| 100 | +import pkg_resources |
| 101 | + |
| 102 | +# This does not (always?) update the default working set. We will |
| 103 | +# do it. |
| 104 | +for path in sys.path: |
| 105 | + if path not in pkg_resources.working_set.entries: |
| 106 | + pkg_resources.working_set.add_entry(path) |
| 107 | + |
| 108 | +###################################################################### |
| 109 | +# Install buildout |
| 110 | + |
| 111 | +ws = pkg_resources.working_set |
| 112 | + |
| 113 | +cmd = [sys.executable, '-c', |
| 114 | + 'from setuptools.command.easy_install import main; main()', |
| 115 | + '-mZqNxd', tmpeggs] |
| 116 | + |
| 117 | +find_links = os.environ.get( |
| 118 | + 'bootstrap-testing-find-links', |
| 119 | + options.find_links or |
| 120 | + ('http://downloads.buildout.org/' |
| 121 | + if options.accept_buildout_test_releases else None) |
| 122 | + ) |
| 123 | +if find_links: |
| 124 | + cmd.extend(['-f', find_links]) |
| 125 | + |
| 126 | +setuptools_path = ws.find( |
| 127 | + pkg_resources.Requirement.parse('setuptools')).location |
| 128 | + |
| 129 | +requirement = 'zc.buildout' |
| 130 | +version = options.version |
| 131 | +if version is None and not options.accept_buildout_test_releases: |
| 132 | + # Figure out the most recent final version of zc.buildout. |
| 133 | + import setuptools.package_index |
| 134 | + _final_parts = '*final-', '*final' |
| 135 | + |
| 136 | + def _final_version(parsed_version): |
| 137 | + try: |
| 138 | + return not parsed_version.is_prerelease |
| 139 | + except AttributeError: |
| 140 | + # Older setuptools |
| 141 | + for part in parsed_version: |
| 142 | + if (part[:1] == '*') and (part not in _final_parts): |
| 143 | + return False |
| 144 | + return True |
| 145 | + |
| 146 | + index = setuptools.package_index.PackageIndex( |
| 147 | + search_path=[setuptools_path]) |
| 148 | + if find_links: |
| 149 | + index.add_find_links((find_links,)) |
| 150 | + req = pkg_resources.Requirement.parse(requirement) |
| 151 | + if index.obtain(req) is not None: |
| 152 | + best = [] |
| 153 | + bestv = None |
| 154 | + for dist in index[req.project_name]: |
| 155 | + distv = dist.parsed_version |
| 156 | + if _final_version(distv): |
| 157 | + if bestv is None or distv > bestv: |
| 158 | + best = [dist] |
| 159 | + bestv = distv |
| 160 | + elif distv == bestv: |
| 161 | + best.append(dist) |
| 162 | + if best: |
| 163 | + best.sort() |
| 164 | + version = best[-1].version |
| 165 | +if version: |
| 166 | + requirement = '=='.join((requirement, version)) |
| 167 | +cmd.append(requirement) |
| 168 | + |
| 169 | +import subprocess |
| 170 | +if subprocess.call(cmd, env=dict(os.environ, PYTHONPATH=setuptools_path)) != 0: |
| 171 | + raise Exception( |
| 172 | + "Failed to execute command:\n%s" % repr(cmd)[1:-1]) |
| 173 | + |
| 174 | +###################################################################### |
| 175 | +# Import and run buildout |
| 176 | + |
| 177 | +ws.add_entry(tmpeggs) |
| 178 | +ws.require(requirement) |
| 179 | +import zc.buildout.buildout |
| 180 | + |
| 181 | +if not [a for a in args if '=' not in a]: |
| 182 | + args.append('bootstrap') |
| 183 | + |
| 184 | +# if -c was provided, we push it back into args for buildout' main function |
| 185 | +if options.config_file is not None: |
| 186 | + args[0:0] = ['-c', options.config_file] |
| 187 | + |
| 188 | +zc.buildout.buildout.main(args) |
| 189 | +shutil.rmtree(tmpeggs) |
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