From 8a90b50bd7e22082d7f14f7c700e9d8727da1c8f Mon Sep 17 00:00:00 2001 From: Marius Gedminas Date: Fri, 15 Mar 2013 19:38:04 +0200 Subject: [PATCH] Add a bootstrap.py (latest v2) --- bootstrap.py | 165 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 bootstrap.py diff --git a/bootstrap.py b/bootstrap.py new file mode 100644 index 0000000..ec3757a --- /dev/null +++ b/bootstrap.py @@ -0,0 +1,165 @@ +############################################################################## +# +# Copyright (c) 2006 Zope Foundation and Contributors. +# All Rights Reserved. +# +# This software is subject to the provisions of the Zope Public License, +# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. +# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED +# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS +# FOR A PARTICULAR PURPOSE. +# +############################################################################## +"""Bootstrap a buildout-based project + +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. +""" + +import os, shutil, sys, tempfile +from optparse import OptionParser + +tmpeggs = tempfile.mkdtemp() + +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", help="use a specific zc.buildout version") + +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", "--config-file", + help=("Specify the path to the buildout configuration " + "file to be used.")) +parser.add_option("-f", "--find-links", + help=("Specify a URL to search for buildout releases")) + + +options, args = parser.parse_args() + +###################################################################### +# load/install distribute + +to_reload = False +try: + import pkg_resources, setuptools + if not hasattr(pkg_resources, '_distribute'): + to_reload = True + raise ImportError +except ImportError: + ez = {} + + try: + from urllib.request import urlopen + except ImportError: + from urllib2 import urlopen + + exec(urlopen('http://python-distribute.org/distribute_setup.py').read(), ez) + setup_args = dict(to_dir=tmpeggs, download_delay=0, no_fake=True) + ez['use_setuptools'](**setup_args) + + if to_reload: + reload(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) + +###################################################################### +# Install buildout + +ws = pkg_resources.working_set + +cmd = [sys.executable, '-c', + 'from setuptools.command.easy_install import main; main()', + '-mZqNxd', tmpeggs] + +find_links = os.environ.get( + 'bootstrap-testing-find-links', + options.find_links or + ('http://downloads.buildout.org/' + if options.accept_buildout_test_releases else None) + ) +if find_links: + cmd.extend(['-f', find_links]) + +distribute_path = ws.find( + pkg_resources.Requirement.parse('distribute')).location + +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' + 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=[distribute_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 _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 version: + requirement = '=='.join((requirement, version)) +cmd.append(requirement) + +import subprocess +if subprocess.call(cmd, env=dict(os.environ, PYTHONPATH=distribute_path)) != 0: + raise Exception( + "Failed to execute command:\n%s", + repr(cmd)[1:-1]) + +###################################################################### +# Import and run buildout + +ws.add_entry(tmpeggs) +ws.require(requirement) +import zc.buildout.buildout + +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' main function +if options.config_file is not None: + args[0:0] = ['-c', options.config_file] + +zc.buildout.buildout.main(args) +shutil.rmtree(tmpeggs)